WO2009151144A1 - 共重合体及びそれを用いた高分子発光素子 - Google Patents
共重合体及びそれを用いた高分子発光素子 Download PDFInfo
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- WO2009151144A1 WO2009151144A1 PCT/JP2009/060974 JP2009060974W WO2009151144A1 WO 2009151144 A1 WO2009151144 A1 WO 2009151144A1 JP 2009060974 W JP2009060974 W JP 2009060974W WO 2009151144 A1 WO2009151144 A1 WO 2009151144A1
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- 230000009467 reduction Effects 0.000 description 1
- 238000001226 reprecipitation Methods 0.000 description 1
- 229910052701 rubidium Inorganic materials 0.000 description 1
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 description 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- APSBXTVYXVQYAB-UHFFFAOYSA-M sodium docusate Chemical group [Na+].CCCCC(CC)COC(=O)CC(S([O-])(=O)=O)C(=O)OCC(CC)CCCC APSBXTVYXVQYAB-UHFFFAOYSA-M 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 125000001273 sulfonato group Chemical class [O-]S(*)(=O)=O 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-O sulfonium Chemical compound [SH3+] RWSOTUBLDIXVET-UHFFFAOYSA-O 0.000 description 1
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 description 1
- 150000003462 sulfoxides Chemical class 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical group [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 1
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 description 1
- ILMRJRBKQSSXGY-UHFFFAOYSA-N tert-butyl(dimethyl)silicon Chemical group C[Si](C)C(C)(C)C ILMRJRBKQSSXGY-UHFFFAOYSA-N 0.000 description 1
- 150000004867 thiadiazoles Chemical class 0.000 description 1
- 150000003557 thiazoles Chemical class 0.000 description 1
- 125000003396 thiol group Chemical group [H]S* 0.000 description 1
- 229930192474 thiophene Natural products 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- 230000002463 transducing effect Effects 0.000 description 1
- 125000004306 triazinyl group Chemical group 0.000 description 1
- UKTDFYOZPFNQOQ-UHFFFAOYSA-N tributyl(thiophen-2-yl)stannane Chemical compound CCCC[Sn](CCCC)(CCCC)C1=CC=CS1 UKTDFYOZPFNQOQ-UHFFFAOYSA-N 0.000 description 1
- 125000005034 trifluormethylthio group Chemical group FC(S*)(F)F 0.000 description 1
- 125000004044 trifluoroacetyl group Chemical group FC(C(=O)*)(F)F 0.000 description 1
- 125000000876 trifluoromethoxy group Chemical group FC(F)(F)O* 0.000 description 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 1
- 125000000025 triisopropylsilyl group Chemical group C(C)(C)[Si](C(C)C)(C(C)C)* 0.000 description 1
- 125000003258 trimethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- COIOYMYWGDAQPM-UHFFFAOYSA-N tris(2-methylphenyl)phosphane Chemical compound CC1=CC=CC=C1P(C=1C(=CC=CC=1)C)C1=CC=CC=C1C COIOYMYWGDAQPM-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000001018 xanthene dye Substances 0.000 description 1
- 150000003732 xanthenes Chemical class 0.000 description 1
- NAWDYIZEMPQZHO-UHFFFAOYSA-N ytterbium Chemical compound [Yb] NAWDYIZEMPQZHO-UHFFFAOYSA-N 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G61/12—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G61/12—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule
- C08G61/122—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule derived from five- or six-membered heterocyclic compounds, other than imides
- C08G61/123—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule derived from five- or six-membered heterocyclic compounds, other than imides derived from five-membered heterocyclic compounds
- C08G61/126—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule derived from five- or six-membered heterocyclic compounds, other than imides derived from five-membered heterocyclic compounds with a five-membered ring containing one sulfur atom in the ring
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K10/00—Organic devices specially adapted for rectifying, amplifying, oscillating or switching; Organic capacitors or resistors having potential barriers
- H10K10/40—Organic transistors
- H10K10/46—Field-effect transistors, e.g. organic thin-film transistors [OTFT]
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/10—Organic polymers or oligomers
- H10K85/111—Organic polymers or oligomers comprising aromatic, heteroaromatic, or aryl chains, e.g. polyaniline, polyphenylene or polyphenylene vinylene
- H10K85/113—Heteroaromatic compounds comprising sulfur or selene, e.g. polythiophene
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/10—Organic polymers or oligomers
- H10K85/111—Organic polymers or oligomers comprising aromatic, heteroaromatic, or aryl chains, e.g. polyaniline, polyphenylene or polyphenylene vinylene
- H10K85/115—Polyfluorene; Derivatives thereof
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/10—Organic polymers or oligomers
- H10K85/151—Copolymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G2261/30—Monomer units or repeat units incorporating structural elements in the main chain
- C08G2261/31—Monomer units or repeat units incorporating structural elements in the main chain incorporating aromatic structural elements in the main chain
- C08G2261/316—Monomer units or repeat units incorporating structural elements in the main chain incorporating aromatic structural elements in the main chain bridged by heteroatoms, e.g. N, P, Si or B
- C08G2261/3162—Arylamines
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G2261/30—Monomer units or repeat units incorporating structural elements in the main chain
- C08G2261/32—Monomer units or repeat units incorporating structural elements in the main chain incorporating heteroaromatic structural elements in the main chain
- C08G2261/322—Monomer units or repeat units incorporating structural elements in the main chain incorporating heteroaromatic structural elements in the main chain non-condensed
- C08G2261/3223—Monomer units or repeat units incorporating structural elements in the main chain incorporating heteroaromatic structural elements in the main chain non-condensed containing one or more sulfur atoms as the only heteroatom, e.g. thiophene
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/14—Macromolecular compounds
- C09K2211/1441—Heterocyclic
- C09K2211/1483—Heterocyclic containing nitrogen and sulfur as heteroatoms
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
Definitions
- the present invention relates to a copolymer and a polymer light emitting device using the copolymer.
- a fluorene-zyl group that is an arylene group as a repeating unit and a formula
- a random copolymer having a group represented by (M) is known (Japanese Patent Laid-Open No. 2000-0 5 3 4 8 3).
- An object of the present invention is to provide a copolymer capable of providing a polymer light-emitting device that emits light for a long period of time.
- a block (A ′) composed of a repeating unit represented by the formula (1-1), and / or a repeating unit represented by the formula (1-1) and a repeating unit represented by the formula (II)
- a copolymer having a block (A) comprising
- An acyl group, an acyloxy group, an imine residue, an amide group, an acid imide group, a carboxyl group, a cyano group or a nitro group, and m and n may be the same or different, and 2 or Represents 3.
- a plurality of R 1 may be the same or different.
- a plurality of R 2 may be the same or different.
- a plurality of R 5 may be the same or different.
- a plurality of R 6 may be the same or different.
- a plurality of X 1 may be the same or different.
- a plurality of X 3 may be the same or different.
- a r 1 represents an arylene group.
- the second aspect of the present invention provides a composition containing the copolymer and at least one material selected from the group consisting of a light emitting material, a hole transport material, and an electron transport material.
- the present invention provides a composition containing the copolymer and a solvent.
- the present invention provides a thin film containing the copolymer or the composition.
- the present invention provides a polymer light emitting device having an anode, a cathode, and an organic layer containing the copolymer or the composition between the anode and the cathode.
- the present invention provides a planar light source and illumination using the polymer light emitting device, and a liquid crystal display device using the polymer light emitting device as a backlight.
- the present invention provides an organic transistor having an active layer containing the copolymer.
- the present invention provides a photoelectric conversion element having an anode, a cathode, and an organic layer containing the copolymer provided between the anode and the cathode.
- the power for condensation polymerization of only the compound represented by ⁇ —A—W 2 is ⁇ condensation of the compound represented by WA—W 2 and the compound represented by W 1 —A r 1 —W 2
- the first force is obtained by condensation polymerization of a compound represented by ⁇ — 8- ⁇ , a compound represented by ⁇ — 8-1 ⁇ , and a compound having two substituents involved in condensation polymerization.
- the block ( ⁇ ′) and / or the block ( ⁇ ) is synthesized by condensation polymerization of the first compound and the compound having two substituents involved in the condensation polymerization.
- a method for producing the copolymer which comprises a step of synthesizing the copolymer having the same.
- — ⁇ — represents a repeating unit represented by the formula (1-1) or a repeating unit represented by the formula (1-2),
- a r 1 represents the same meaning as described above, and W 1 and W 2 , which may be the same or different, each represents a substituent involved in condensation polymerization.
- the present invention has the ability to perform condensation polymerization of only a compound represented by W 1 —A—W 2. Force for condensation polymerization of the compound represented by W 1 — A— W 2 and the compound represented by W 1 — A r 1 _W 2 , and the compound represented by W 1 — A— W 2 and W 1 — A r 1 _W And a compound having two substituents involved in condensation polymerization by condensation polymerization.
- a step, and the first compound for synthesizing the first compound Ri, W 1 - Ar 1 - W 2 in the compound represented by the formula and W 1 - A r 2 - or a compound represented by W 2 to a condensation polymerization and the first compound, W'-Ar 1 - condensation compound is shown by Ar 2 _W 2 and a compound having two substituents involved in condensation polymerization - a compound represented by W 2, W 1
- a method for producing the copolymer comprising a step of synthesizing a block ( ⁇ ′) and a copolymer having ⁇ or block ( ⁇ ) and block ( ⁇ ) by polymerization.
- — ⁇ — represents the repeating unit represented by the formula (1-1) or the repeating unit represented by the formula (1-2), A r 1 represents the same meaning as described above, and A r 2 represents 2 And W 1 and W 2, which may be the same or different, each represent a substituent involved in condensation polymerization.
- W ⁇ The ability to condensation polymerize only the compound represented by —A—W 2 or the condensation polymerization of the compound represented by W 1 — A— W 2 and the compound represented by W 1 — A r 1 — W 2 , W
- the first compound is obtained by condensation polymerization of a compound represented by '—A—W 2 , a compound represented by W 1 —Ar 1 —W 2 and a compound having two substituents involved in condensation polymerization.
- the copolymer of the present invention comprises a block ( ⁇ ′) composed of a repeating unit represented by the formula (I-1), a repeating unit represented by ⁇ or formula (1-1) and a repeating unit represented by the formula (II). It is preferable to have a block ( ⁇ ) containing a repeating unit represented by the formula (1-1) and a repeating unit represented by the formula (II).
- halogen atom examples include a fluorine atom, a chlorine atom, a bromine atom and an iodine atom.
- the alkyl group means an unsubstituted alkyl group and an alkyl group in which a hydrogen atom in the group is replaced with a halogen atom or the like, and may be linear or branched, or may be a cycloalkyl group.
- the number of carbon atoms of the alkyl group is usually 1 to 20, preferably 1 to 15 and more preferably 1 to 10.
- alkyl group examples include a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, an isobutyl group, an s-butyl group, a t_butyl group, a pentyl group, an isoamyl group, a hexyl group, a cyclohexyl group, Heptyl group, octyl group, 2-ethylhexyl group, nonyl group, decyl group, 3,7-dimethyl
- Examples thereof include a tyroctyl group, a dodecyl group, a trifluoromethyl group, a pentafluoroethyl group, a perfluorobutyl group, a perfluorinated hexyl group, and a perfluorooctyl group.
- the alkoxy group means an unsubstituted alkoxy group and an alkoxy group in which a hydrogen atom in the group is substituted with a halogen atom or the like, and may be linear or branched, or may be a cycloalkoxy group.
- the number of carbon atoms of the alkoxy group is usually 1 to 20, preferably 1 to 15 and more preferably 1 to 10.
- alkoxy groups include methoxy, ethoxy, propyloxy, isopropyloxy, butoxy, isobutoxy, s-butoxy, t-butoxy, pentyloxy, hexyloxy, cyclohexyl Xyloxy group, heptyloxy group, octyloxy group, 2—ethylhexyloxy group, noroxy group, decyloxy group, 3,7-dimethyloctyloxy group, dodecyloxy group, trifluoromethoxy group, pentafluoroethoxy group, perfluorobutoxy group Examples thereof include a perfluorinated hexyloxy group, a perfluorooctyloxy group, a methoxymethyloxy group, and a 2-methoxytyloxy group.
- the alkylthio group means an unsubstituted alkylthio group and an alkylthio group in which a hydrogen atom in the group is substituted with a halogen atom or the like, and may be linear or branched, and may be a cycloalkylthio group.
- the number of carbon atoms of the alkylthio group is usually 1 to 20, preferably 1 to 15 and more preferably 1 to 10.
- alkylthio group examples include a methylthio group, an ethylthio group, a propylthio group, an isopropylthio group, a butylthio group, an isoptylthio group, an s-butylthio group, a t-butylthio group, a pentylthio group, a hexylthio group, a cyclohexylthio group, Examples include a heptylthio group, an octylthio group, a 2-ethylhexylthio group, a nonylthio group, a decylthio group, a 3,7-dimethyloctylthio group, a dodecylthio group, a trifluoromethylthio group, and the like.
- An aryl group is a remaining atomic group obtained by removing one hydrogen atom bonded to a carbon atom constituting an aromatic ring from an aromatic hydrocarbon.
- the unsubstituted aryl group and the hydrogen atom in the group are a halogen atom, an alkoxy group.
- the number of substituents may be one or more, and the plurality of substituents may be the same or different.
- the aryl group includes those having a condensed ring and those having two or more independent benzene rings or condensed rings bonded via a single bond or a divalent organic group, for example, an alkenylene group such as a vinylene group.
- the number of carbon atoms in the aryl group is usually 6 to 60, preferably 7 to 48, and more preferably 7 to 30.
- a phenyl group a C 1 to C 12 alkoxyphenyl group (di, ⁇ , indicates that the number of carbon atoms is 1 to 12. The same applies to the following).
- Alkylphenyl group 1-naphthyl group, 2-naphthyl group, 1_anthracenyl group, 2-anthracenyl group, 9_anthracenyl group, pentafluorophenyl group, etc.
- Ji alkoxy-phenylalanine group, C 1 -C 1 2 Arukirufuweniru group Shi favored.
- alkoxyphenyl group include, for example, a methoxyphenyl group, an ethoxyphenyl group, a propyloxyphenyl group, and an isopropyloxyphenyl group.
- Butyloxyphenyl, isobutyloxyphenyl, s-butyloxyphenyl, tert-butynoleoxyphenyl, pentyloxyphenyl, hexyloxyphenyl, octyloxy Nyl group etc. are mentioned.
- Examples of the C 1 , C 2 -C 12 alkyl phenyl group include a methyl phenyl group, an ethyl phenyl group, a dimethyl phenyl group, a propyl phenyl group, a mesitinole group, a methyl ethyl phenyl group, an isopropyl phenyl group, a butyl phenyl group, and an isobutyl phenyl group.
- the aryloxy group means an unsubstituted aryloxy group and an aryloxy group in which a hydrogen atom in the group is substituted with a halogen atom, an alkoxy group, an alkyl group, or the like.
- the number of carbon atoms of the aryloxy group is usually 6 to 60, preferably 7 to 48, and more preferably 7 to 30.
- the Ariruokishi group for example, phenoxy group, C i ⁇ C 1 2 alkoxy phenoxyethanol group, Ji! ⁇ Alkylphenoxy group, 1-naphthyloxy group, 2-naphthyloxy group, pentafluorophenenoreoxy group, etc.
- CiC alkoxyphenoxy group the same! ⁇ . ⁇ Alkylphenoxy groups are preferred.
- Ji ⁇ ⁇ Alkoxyphenoxy groups include, for example, methoxyphenoxy group, ethoxyphenoxy group, propyloxyphenoxy group, isopropyloxyphenoxy group, butyloxyphenoxy group, isobutyloxyphenoxy group Group, s-butyloxyphenoxy group, t_butyloxyphenoxy group, pentyloxyphenoxy group, hexyloxyphenoxy group, octyloxyphenoxy group, and the like.
- Examples of the C 1 ⁇ C 1 2 alkyl phenoxy group include a methyl phenoxy group, an ethyl phenoxy group, a dimethyl phenoxy group, a propyl phenoxy group, a 1,3,5-trimethyl phenoxy group, and a methyl ethenyl group.
- Phenoxy group isopropyl phenoxy group, butyl phenoxy group, isoptyl phenoxy group, s-butyl phenoxy group, t_butyl phenoxy group, pentyl phenoxy group, isoamyl phenoxy group, hexyl phenoxy group, heptyl phenoxy group Si group, octylphenoxy group, nonylphenoxy group, decylphenoxy group, dodecylphenoxy group and the like.
- the arylthio group means an unsubstituted arylothio group and an arylothio group in which a hydrogen atom in the group is substituted with a halogen atom, an alkoxy group, an alkyl group or the like.
- the number of carbon atoms of the arylthio group is usually 6 to 60, preferably 7 to 48, and more preferably 7 to 30.
- Examples of arylthio groups include phenolthio groups, Ci to c 12 alkoxyphenylthio group, ⁇ . 12 alkylphenylthio group, 1-naphthylthio group, 2-naphthylthio group, pentafluorophenylthio group and the like.
- the arylalkyl group means an unsubstituted arylalkyl group and an arylalkyl group in which a hydrogen atom in the group is substituted with a halogen atom, an alkoxy group, an alkyl group or the like.
- the number of carbon atoms in the arylalkyl group is usually 7 to 60, preferably 7 to 48, and more preferably 7 to 30.
- As the arylalkyl group for example, a phenyl-CiC alkyl group, and the like. ⁇ Alkoxyphenyl—C! C alkyl group; ⁇ Alkylphenyl!
- Ci to C 12 alkyl groups include, for example, methyl group, ethyl group, propyl group, isopropyl group, butyl group, isobutyl group, s-butyl group, t-butyl group, pentyl group, isoamyl group, and Examples include xyl group, cyclohexyl group, heptyl group, octyl group, nonyl group, decyl group, and dodecyl group.
- An aryloxy group means an unsubstituted arylaryl group and an arylalkyl group in which a hydrogen atom in the group is substituted with a halogen atom, an alkoxy group, an alkyl group or the like.
- the number of carbon atoms of the arylalkoxy group is usually 7 to 60, preferably 7 to 48, more preferably 7 to 30.
- Examples of arylalkoxy groups are phenyl—C! C ⁇ alkoxy groups, ji! ⁇ Ji alkoxy phenylalanine one C i C alkoxy group, C 1 -C 12 alkylphenyl one C! -C 12 alkoxy groups, 1-naphthyl one C!
- alkoxy groups include methoxy, ethoxy, propyloxy, isopropyloxy, butoxy, isobutoxy, s_butoxy, t-butoxy, pentyloxy, hexyloxy, Cyclohexyloxy group, Heptyloxy group, Octyloxy group, 2-Ethylhexyloxy group, Nonyloxy group, Decyloxy group, 3, 7-Dimethyl
- Examples of the arylalkylthio group include an octyloxy group, a dodecyloxy group, and the like.
- the arylalkylthio group means an unsubstituted arylothio group and an aryloalkylthio group in which a hydrogen atom in the group is substituted with a halogen atom, an alkoxy group, an alkyl group, or the like.
- the number of carbon atoms of the arylalkylthio group is usually 7 to 60, preferably 7 to 48, more preferably 7 to 30.
- the arylalkylthio group for example, a phenyl mono C 1 -C 12 alkylthio group, a C 1 -C 12 alkoxy phenyl group. ⁇ -ji alkylthio group,.
- a ⁇ 12 alkylthio group e.g., cyclohexylthio methylthio group, Echiruchio group, propylthio group, an isopropyl Ji O group, Puchiruchio group, isobutylthio group, s- butylthio group, t-butylthio group, pentylthio group to, Group, cyclohexylthio group, heptylthio group, octylthio group, 2-ethylhexylthio group, nonylthio group, decylthio group, 3,7-dimethyloctylthio group, dodecylthio group and the like.
- the arylalkylenyl group means an unsubstituted arylalkenyl group and an arylalkyl group in which a hydrogen atom in the group is substituted with a halogen atom, an alkoxy group, an alkyl group or the like.
- the number of carbon atoms of the aryl alkenyl group is usually 8 to 60, preferably 8 to 48, more preferably 8 to 30.
- a phenyl C 2 -C 12 alkenyl group (C 2 -C 12 represents 2 to 12 carbon atoms.
- the C 2 -C 12 alkenyl group include a vinyl group, 1-propenyl group, 2 Examples thereof include a 1-propenyl group, a 1-buturyl group, a 2_butynole group, a 1-pentul group, a 2-pentul group, a 1-hexenyl group, a 2-hexenyl group, and a 1-octenyl group.
- An aryl alkynyl group means an unsubstituted aryl alkynyl group and an aryl alkynyl group in which a hydrogen atom in the group is substituted with a halogen atom, an alkoxy group, an alkyl group or the like.
- the number of carbon atoms of the aryl alkynyl group is usually 8 to 60, preferably 8 to 48, more preferably 8 to 30.
- aryl alkynyl groups include phenyl_C 2 -C 12 alkynyl groups, Ci C ⁇ alkoxyphenyl C 2 -C 12 alkynyl groups, and the like! ⁇ . ⁇ Alkylphenyl - C 2 -C 12 alkynyl group,
- Examples of the C 2 to C 12 alkynyl group include, for example, an ethur group, a 1_propynyl group, a 2_propynyl group, a 1-ptynyl group, a 2-butyn group, a 1-pentynyl group, a 2-pentynyl group, and a 1-hexyl group. , 2-hexyl group, 1-octynyl group and the like.
- a monovalent heterocyclic group refers to an atomic group obtained by removing one hydrogen atom from a heterocyclic compound, and an unsubstituted monovalent heterocyclic group and a hydrogen atom in the group is a substituent such as an alkyl group.
- the number of carbon atoms of the monovalent heterocyclic group is usually 4 to 60, preferably 4 to 30, and more preferably 4 to 20, excluding the number of carbon atoms of the substituent.
- the heterocyclic compound is an organic compound having a cyclic structure, and as an element constituting the ring, not only a carbon atom but also an oxygen atom, a sulfur atom, a nitrogen atom, a phosphorus atom, a boron atom, and a key element.
- the monovalent heterocyclic group is preferably an aromatic heterocyclic group.
- Examples of the monovalent heterocyclic group include a chenyl group, 2 Alkyl enyl group, pyrrolyl group, furyl group, pyridyl group, C i C alkyl pyridyl group, pyridazinyl group, pyrimidyl group, pyradyl group, triazinyl group, quinolyl group, isoquinolyl group, etc.
- the heterocyclic thio group means a group in which a hydrogen atom of a mercapto group is substituted with a monovalent heterocyclic group.
- Examples of the heterocyclic thio group include a heterocyclic monothio group such as a pyridylthio group, a pyridazinylthio group, a pyrimidylthio group, a pyrazinylthio group, and a triazylthio group.
- an unsubstituted amino group and a hydrogen atom in the group are substituted with one or two groups selected from the group consisting of an alkyl group, an aryl group, an arylalkyl group, and a monovalent heterocyclic group
- An amino group (hereinafter referred to as a substituted amino group).
- the hydrogen atom contained in the alkyl group, aryl group, aryl alkyl group or monovalent heterocyclic group is selected from the group consisting of an alkyl group, aryl group, aryl alkyl group and monovalent heterocyclic group force. It may be substituted with a substituent (hereinafter sometimes referred to as a secondary substituent).
- the number of carbon atoms of the substituted amino group does not include the number of carbon atoms of the secondary substituent, and is usually 1 to 60, preferably 2 to 48, more preferably 2 to 40.
- the substituted amino group include a methylamino group, a dimethylamino group, an ethylamino group, a jetylamino group, a propylamino group, a dipropylamino group, an isopropylpyramino group, a diisopropylamino group, a butylamino group, an isobutylamino group, and an s- Butylamino group, t-Butylamino group, Pentylamino group, Hexylamino group, Heptylamino group, Octylamino group, 2-Ethylhexylamino group, Nonylamino group, Decylamino group, 3,7-Dimethyloctylamino group, Dodec
- alkylphenyl) amino group 1-naphthylamino group, 2-naphthylamino group, pentafluorophenylamino group, pyridylamino group, pyridaziluamino group, pyrimidylamino group, pyrazinylamino group, triazinylaminoamino group, phenylene Lou Ci C ⁇ alkylamino group, C 1 -C 12 Arukokishifue sulfonyl one C! C alkylamino group, di (Ji!
- Ji alkoxy phenylalanine one Ci ⁇ C 12 alkyl) amino group Ci ⁇ C 12 alkylphenyl - C, -C 12 alkylamino amino group, di (C 1 -C 12 Arukirufue - Lou C 1 -C 12 alkyl) amino group, 1 over Na Fuchiru-alkylamino group, 2-naphthyl mono- to Ji ⁇
- Examples include alkylamino groups.
- the silyl group is an unsubstituted silyl group and 1, 2 or 3 groups in which the hydrogen atom in the group is selected from the group consisting of an alkyl group, an aryl group, an arylalkyl group and a monovalent heterocyclic group.
- substituted silyl group This means a substituted silyl group (hereinafter referred to as a substituted silyl group).
- the hydrogen atom contained in the alkyl group, aryl group, aryl alkyl group or monovalent heterocyclic group may be substituted with a secondary substituent.
- the number of carbon atoms of the substituted silyl group is usually 1 to 60, preferably 3 to 48, more preferably 3 to 40, not including the number of carbon atoms of the secondary substituent.
- substituted silyl group examples include trimethyl silyl group, triethyl silyl group, triprovir silyl group, tri-isopropyl silyl group, dimethyl-isopropyl silyl group, jetyl isopropyl silyl group, t-butyldimethyl Silyl group, pentyldimethylsilyl group, hexyldimethylsilyl group, heptyldimethylsilyl group, octyldimethylsilyl group, 2_ethylhexylmonodimethylsilyl group, nonyldimethylsilyl group, decyldimethylsilyl group, 3, 7-Dimethyloctyl-dimethylsilyl group, dodecyldimethylsilyl group, phenyl C i to C i 2 alkylsilyl group, C i to C ⁇ 2 anoloxyphenyl mono C!
- the acyl group means an unsubstituted acyl group and a acyl group in which a hydrogen atom in the group is substituted with a halogen atom or the like.
- the number of carbon atoms of the acyl group is usually 2 to 20, preferably 2 to 18, and more preferably 2 to 16.
- Examples of the acyl group include an acetyl group, a propionyl group, a butyryl group, an isoptylyl group, a bivaloyl group, a benzoyl group, a trifluoroacetyl group, and a pentafluorobenzoyl group.
- the acyloxy group means an unsubstituted acyloxy group and an acyloxy group in which a hydrogen atom in the group is substituted with a halogen atom or the like.
- the number of carbon atoms of the acyloxy group is usually 2 to 20, preferably 2 to 18, and more preferably 2 to 16.
- Examples of the acyloxy group include acetoxy group, propionyloxy group, butyryloxy group, isobutyryloxy group, bivalloyloxy group, benzoyloxy group, trifluoroacetyloxy group, pentafluorobenzoyloxy group. Etc.
- an imine compound for example, a hydrogen atom bonded to a nitrogen atom in aldimine, ketimine and aldimine is substituted with an alkyl group, an aryl group, an aryl alkyl group, an aryl alkenyl group, an aryl alkynyl group, or the like.
- the number of carbon atoms of the imine residue is usually 2 to 20, preferably 2 to 18, and more preferably 2 to 16.
- a ring may be formed as an alkylene group having 2 to 18 carbon atoms, such as a methylene group, a pentamethylene group, or a hexamethylene group. ) And the like.
- Examples of the imine residue include groups represented by the following structural formulas.
- the amide group means an unsubstituted amide group and an amide group in which a hydrogen atom in the group is substituted with a halogen atom or the like.
- the number of carbon atoms in the amide group is usually 2 to 20, preferably 2 to 18, and more preferably 2 to 16.
- Examples of the amide group include a formamide group, a acetoamide group, a propioamide group, a petit amide group, a benzamide group, a trifluoroacetamide group, a pentafluor benzene amide group, and a diformamide group.
- An acid imido group means a residue obtained by removing a hydrogen atom bonded to a nitrogen atom from an acid imido.
- the number of carbon atoms in the acid imide group is usually 4 to 20, preferably 4 to 18, and more preferably 4 to 16. Examples of the acid imide group include the groups shown below.
- the carboxyl group is an unsubstituted carboxyl group and a hydrogen atom in the group is substituted with an alkyl group, aryl group, aryl alkyl group, monovalent heterocyclic group, or the like. It means a carboxyl group substituted with a group (hereinafter referred to as a substituted carboxyl group).
- the substituent may have a secondary substituent.
- the number of carbon atoms of the substituted carboxyl group is usually 1 to 60, preferably 2 to 48, more preferably 2 to 45, not including the number of carbon atoms of the secondary substituent.
- substituted carboxyl groups include methoxycarbo- Group, ethoxycarbonyl group, propoxycarbonyl group, isopropoxycarbonyl group, butoxycarbonyl group, isobutoxycarbonyl group, S-butoxycarbonyl group, t-butoxycarbonyl group, pentyloxycarbonyl group, hexyloxycarbonyl group , Cyclohexyloxycarbonyl group, heptyloxycarbonyl group, octyloxycarbonyl group, 2_ethylhexyloxycarbonyl group, nonyloxycarbonyl group, decyloxycarbonyl group, 3,7-dimethyloctyl Oxycarbonyl group, dodecyl / reoxycarbonyl group, trifluoromethoxycarbonyl group, pentaf / reo-open ethoxycarbonyl group, perfluorobutoxy carbonyl group, perfluor-open hexyl
- RR 2 , R 3 , R 4 , R 5 and R 6 are a hydrogen atom, an alkyl group, an alkoxy group, an alkylthio group, an aryl group.
- An aryloxy group, an arylthio group or a heterocyclic thio group more preferably a hydrogen atom, an alkyl group, an alkoxy group, an aryl group or an aryloxy group, and a hydrogen atom, an alkyl group or an aryl group. Is more preferable.
- m and n may be the same or different and represent 2 or 3.
- m and n are preferably equal, and m and n are more preferably 2.
- X 1 , X 2 and X 3 are preferably oxygen atoms or sulfur atoms, and are preferably sulfur atoms. More preferred.
- Examples of repeating units represented by formula (1-1) include formulas (1-1-1) to (I -The repeating units shown in 1-46) are listed.
- the copolymer of the present invention contains the formula (I-1 1) in the block (A).
- the repeating unit represented by formula (II) and the repeating unit represented by formula (II) may each have one type or two or more types.
- the copolymer of the present invention may have one type or two or more types of repeating units represented by the formula (I-1) in the block ( ⁇ ′).
- the arylene group represented by A r 1 is the remaining atomic group obtained by removing two hydrogen atoms bonded to the carbon atoms constituting the aromatic ring from the aromatic hydrocarbon, and is an unsubstituted arylene group. Group and substituted arylene group.
- the arylene group includes those having a condensed ring, and those having two or more independent benzene rings or condensed rings bonded via a single bond or a divalent organic group, for example, an alkenylene group such as a biylene group. .
- the substituent in the substituted arylene group is a halogen atom, an alkyl group, an alkyl group, or the like from the viewpoints of the solubility of the copolymer, the fluorescence characteristics, the ease of synthesis of the copolymer, the heat resistance of the polymer light emitting device, and the like.
- heterocyclic thio group, amino group, silyl group, acyl group, acyloxy group, imine residue, amide group, acid imide group and carboxyl group are the same groups as those described for R 1 above.
- halogen atom include the same atoms as those described for R 1 above.
- the number of carbon atoms in the arylene group excluding substituents is usually 6 to 60, preferably 6 to 20 and more preferably 6 to 18.
- the total number of carbon atoms of the arylene group including the substituent is usually 6 to 100, preferably 6 to 80, more preferably 6 to 70.
- the arylene group includes a phenylene group (the following formulas 1 to 3), a naphthalene dizyl group (the following formulas 4 to 1 3), an anthracene dizyl group (the following formulas 14 to 19), a biphenyl and a diyl group (the following formulas) Formula 2 0 to 2 5), terfene rugyl group (Formula 2 6 to 2 8), fluorene-zyl group (Formula 3 6 to 3 8), benzofluorene monozyl group (Formula 3 9 to 4 6 ), And other divalent condensed polycyclic aromatic hydrocarbon groups (the following formulas 29 to 35).
- a phenylene group the following formulas 1 to 3
- a naphthalene dizyl group the following formulas 4 to 1 3
- an anthracene dizyl group the following formulas 14 to 19
- a biphenyl and a diyl group the following formulas
- Formula 2 0 to 2 5
- R is a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an alkylthio group, an aryl group, an aryloxy group, an aryl group, an arylalkyl group, an arylalkylthio group, an arylalkylthio group, an arylenoreal.
- Kenyl group, aryl alkynyl group, monovalent heterocyclic group, heterocyclic thio group, amino group, silyl group, acyl group, acyloxy group, imine residue, amide group, acid imide group, force ruxyl group, cyano group Represents a group or a nitro group.
- a r 1 is preferably a group represented by formula (IV).
- R 9 and R 1 Q may be the same or different, and may be a halogen atom, an alkyl group, an alkoxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, Arylylalkoxy group, arylenealkylthio group, arylenealkenyl group, arylenealkynyl group, monovalent heterocyclic group, heterocyclicthio group, amino group, silyl group, asil group, acyloxy group, imine residue, amid group Represents an acid imide group, a carboxyl group, a cyano group or a nitro group, and R 1 1 and R 12 may be the same or different, and are a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group Group, alkylthio group, aryl group, aryloxy group, arylthio group, aryl
- R 9, R 1 0, R u R 1 2 represented by an alkyl group, an alkoxy group , Alkylthio group, aryl group, aryloxy group, aryl group, aryl group, aryl group, aryl group, aryl group, aryl group, aryl group, aralkyl group, aryl group, aryl group, aryl group, monovalent heterocyclic group, heterocyclic group, amino group
- Examples of the silyl group, acyl group, acyloxy group, imine residue, amide group, acid imide group and carboxyl group include the same groups as those described for R 1 above.
- Examples of the halogen atom include atoms similar to the halogen atom described in the above R 1.
- R 9 and R 1G are preferably aryl groups or alkyl groups.
- a and b are preferably 0 or 1, and more preferably 0.
- R 11 and R 12 are preferably alkyl groups or aryl groups. Examples of the group represented by the formula (IV) include groups represented by the following formulas (IV-1) to (IV-15).
- the block (A) that the copolymer of the present invention may have preferably further contains a repeating unit represented by the formula (I-12), and the repeating unit represented by the formula (1_2)
- Examples of the silyl group, acyl group, acyloxy group, imine residue, amide group, acid imide group, and carboxyl group include the same groups as those described for R 1 above.
- halogen atom examples include the same atoms as those described for R 1 above.
- R Li, R '2, R' 3 , R '4, R' 5 and R '6 the phase may be the same May be different, hydrogen atom, alkyl group, alkoxy group, alkylthio group, aryl group, aryloxy group, It is preferably an arylthio group or a heterocyclic thio group, more preferably a hydrogen atom, an alkyl group, an alkoxy group, an aryl group or an aryloxy group, and further preferably a hydrogen atom, an alkyl group or an aryl group.
- YY 2 and Y 3 in formula (1-2) are oxygen atoms or sulfur atoms, More preferably, it is a sulfur atom.
- Examples of the repeating unit represented by the formula (1-2) include repeating units represented by the formulas (1-2-1) to (I-2-8).
- block (A) contains two types of repeating units represented by formula (1-2), examples of these combinations include repeating units represented by formula (1 _2— 1) and formula (1 -2 -5), repeating unit represented by formula (1-2-3) and repeating unit represented by formula (1-2-5), represented by formula (1-2-4) Repeating unit and repeating unit represented by formula (1-2-5), repeating unit represented by formula (1-2-6) and repeating unit represented by formula (I 1 2-5), formula (I 1 2 1) The repeating unit represented by 1) and the repeating unit represented by formula (1-2-3), the repeating unit represented by formula (1-2-1) and the repeating unit represented by formula (1-2-6) The repeating unit represented by formula (I 1 2-3) and the repeating unit represented by formula (1-2-6), the repeating unit represented by formula (1 _2_4) and the formula (1-2-7) And the like.
- the repeating unit represented by the formula (1-1) is preferably 0.1 to 40 mol, represented by the formula (I-2)
- the repeating unit is preferably 10 to 50 mol, and the repeating unit represented by the formula (II) is preferably 10 to 70 mol.
- the copolymer of the present invention is a repeating compound represented by the formula (II) from the viewpoint of high solubility, easy preparation of a thin film, and long-term light emission of a polymer light-emitting device using the copolymer. It is preferable to have a block (B) containing a unit and a repeating unit represented by the formula (III).
- the block (B) may contain two or more types of repeating units represented by the formula (I I I).
- the divalent aromatic amine residue is the remaining atomic group obtained by removing two hydrogen atoms bonded to the carbon atoms constituting the aromatic ring from the aromatic amine, and the residual divalent aromatic amine residue. It means a group and a substituted divalent aromatic amine residue.
- the substituent in the substituted divalent aromatic amine residue include a halogen atom, an alkyl group, an alkoxy group, an alkylthio group, an aryl group, an aryloxy group, an aryloxy group, an arylalkyl group, an aryl group, and an aryl group.
- Alkylthio group arylalkenyl group Group, aryl alkynyl group, monovalent heterocyclic group, heterocyclic thio group, amino group, silyl group, acyl group, acyloxy group, imine residue, amide group, acid imide group, carboxy group, cyano group Or a nitro group is mentioned.
- a heterocyclic thio group, an amino group, a silyl group, an acyl group, an acyloxy group, an imine residue, an amide group, an acid imide group, and a carboxy group, the same groups as those described above for R 1 are used.
- Examples of the halogen atom include the same atoms as the halogen atom described in the above R 1 .
- the number of carbon atoms of the divalent aromatic amine amine residue is usually 5 to 100, preferably 15 to 80, more preferably 15 to 60, not including the number of carbon atoms of the substituent. .
- divalent aromatic amin residue examples include groups represented by the following formulas 40 :! to 4 12.
- R represents the same meaning as described above. A plurality of R may be the same or different.
- Ar 2 is a group represented by formula (V_l)
- Ar 13 , Ar 14 , Ar 15 and Ar 16 may be the same or different and each represents an arylene group or a divalent heterocyclic group.
- Ar 17 , Ar 18 and Ar 19 may be the same or different and each represents an aryl group or a monovalent heterocyclic group,
- X and y may be the same or different and each represents 0 or 1; 0 ⁇ x
- Ar 2Q and Ar 21 may be the same or different and each represents a trivalent aromatic hydrocarbon group or a trivalent heterocyclic group.
- R Z1 , R Z2 , R Z3 , R Z4 and R Z5 may be the same or different.
- Ar 23 N—— Ar 24- (V-3) (In the formula, Ar 23 represents a trivalent aromatic hydrocarbon group or a trivalent heterocyclic group.
- Ar 24 and Ar 25 may be the same or different, and are an arylene group or a divalent group.
- R Z6 , R Z7 , R Z8 , R Z9 and R Z1 ° may be the same or different, Represents a hydrogen atom, a halogen atom, an alkyl group, an aryl group or a monovalent heterocyclic group)
- the arylene group represented by A r 25 includes the same groups as those described above for A r 1 .
- the divalent heterocyclic group represented by Ar 13 , Ar ", Ar 15 , Ar 16 , Ar 24 and Ar 25 is hydrogenated from the heterocyclic compound.
- the remaining atomic group excluding 2 atoms means an unsubstituted divalent heterocyclic group and a divalent heterocyclic group in which a hydrogen atom in the group is substituted with a substituent such as an alkyl group.
- the valent heterocyclic group include thiophene-diyl group, alkylthiophene-zyl group, pyrrolidinoyl group, N-di!
- An aromatic hydrocarbon group means an atomic group remaining after removing three hydrogen atoms bonded to carbon atoms constituting an aromatic ring from an unsubstituted or substituted aromatic hydrocarbon.
- Examples of the trivalent aromatic hydrocarbon group include, for example, benzene monotryl group, naphthalene trityl group, anthracene trityl group, biphenyl ditlyryl group, turf nitolylyl group, fluorene monotryl group, benzofluorene trityl group. Groups and the like.
- the trivalent heterocyclic group represented by Ar 2 °, Ar 21 and Ar 23 is a compound obtained by removing three hydrogen atoms from a heterocyclic compound.
- the remaining atomic group means an unsubstituted trivalent heterocyclic group and a trivalent heterocyclic group in which a hydrogen atom in the group is substituted with a substituent such as an alkyl group.
- Examples of the trivalent heterocyclic group include, for example, a thiophenetolyl group. ⁇ Alkylthiophene-tolyl group, pyrrole-tolyl group, ⁇ -ji, ⁇ .
- R z R Z2 , R Z3 , R Z4 , R Z5 , R Z6 , R Z7 , R Z8 , R Z9 and R Z1 ° Is the same atom as the atom described in R 1 above.
- Z 1 and N are preferably bonded to adjacent atoms constituting the Ar 2 ° ring, and Z 1 and N are preferably bonded to adjacent atoms constituting the A r 21 ring. .
- Z 2 and N are bonded to adjacent atoms constituting the Ar 23 ring, and Z 2 and And N are preferably bonded to adjacent atoms constituting the Ar 25 ring.
- Z 1 is an oxygen atom, a sulfur atom, _N (R Z5 ) -Is preferred.
- Z 2 in formula (V-3) is an oxygen atom, a sulfur atom, 1 N ( R Z1 °) — is preferred. Examples of the group represented by the above formula (V_l), the group represented by the formula (V_2) or the group represented by the formula (V-3) include groups represented by the following formulas 421 to 458 and the like.
- the block (B) may contain one type or two or more types of repeating units represented by the formula (III), and performs hole injection and hole transport in the copolymer. Therefore, it is preferable to include two types.
- Examples of combinations of repeating units when the block (B) contains two types of repeating units represented by the formula (III) include, for example, repeating units represented by the formula 4 0 1 and repeating units represented by the formula 4 0 3 and formula A repeating unit represented by 4 0 1 and a repeating unit represented by Formula 4 0 4, a repeating unit represented by Formula 4 0 1 and a repeating unit represented by Formula 4 0 5, a repeating unit and a formula represented by Formula 4 0 1 A repeating unit represented by 4 0 6, a repeating unit represented by Formula 4 0 1 and a repeating unit represented by Formula 4 0 7, a repeating unit represented by Formula 4 0 1 and a repeating unit represented by Formula 4 1 1, A repeating unit represented by the formula 4 0 3 and a repeating unit represented by the
- repeating unit represented by the formula (II) is preferably 40 to 90 mol
- the repeating unit represented by the formula (III) Is preferably 10 to 60 mol.
- the copolymer of the present invention may be a copolymer containing a repeating unit other than the repeating units represented by the formulas (I_1), (1-2), (II) and (III).
- the repeating unit other than the repeating units represented by the formulas (1-1), (1-2), (II) and (III) is represented by the following formula (C) in order to adjust the charge transport property.
- the repeating unit is preferred.
- the repeating unit represented by the following formula (C) is contained in the block (A).
- R 3 ° and R 3 1 may be the same or different, and are a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an alkylthio group, an aryl group, an aryloxy group, an aryl group.
- Arylalkyl group, arylalkylalkoxy group, arylalkylthio group, arylenealkenyl group, arylenealkynyl group, monovalent heterocyclic group, heterocyclicthio group, amino group, silyl group, acylyl group, acyloxy group, Represents an imine residue, an amide group, an acid imide group, a carboxyl group, a cyano group or a nitro group, and X 4 represents an oxygen atom, a sulfur atom or a single C (R 7 ) C (R 8 )-( In the formula, R 7 and R 8 represent the same meaning as described above.
- Examples thereof include the same groups as those described for R 1 above.
- Examples of the halogen atom include the same atoms as those described for R 1 above.
- 1 3 () and 1 3 1 may be the same or different from each other.
- a hydrogen atom, an alkyl group, an alkoxy group It is preferably an alkylthio group, an aryl group, an aryloxy group, an arylthio group or a heterocyclic group, more preferably a hydrogen atom, an alkyl group, an alkoxy group, an aryl group or an aryloxy group, a hydrogen atom, an alkyl group. Or, it is more preferably an aryl group.
- X 4 is a sulfur atom.
- the copolymer of the present invention is more suitable than the copolymer not containing the repeating unit represented by the formula (1-1) or the random copolymer having the repeating unit represented by the formula (1-1). When a polymer light emitting device using this copolymer is produced, it emits light for a long time.
- the total content of the repeating units represented by the formula (1-1) with respect to the total number of all repeating units in the copolymer of the present invention is in the range of 0.02 to 50 mol%. preferably, 0. more preferably 5 to 40 mol 0/0, total content of the repeating unit represented by the formula (1-2), good in the range of 0.5 to 50 mol% preferred, more preferably from 5 to 50 mol%, the content of the repetition unit represented by the formula (II) is preferably in the range of 1 0 mole% to 90 mole 0/0, 2 0 more preferably 80 mol%, the content of the repeating unit of the formula (III), it is preferable, 5 to 50 mol% in the range of 0.1 to 60 mole 0/0 It is more preferable.
- the copolymer of the present invention is a repeating unit other than the repeating units represented by the above formulas (1-1), (1-2), (II) and (III), for example, a repeating unit represented by the formula (C)
- the content of the repeating unit is 1 to 50 mol with respect to the total number of all repeating units in the copolymer. It is preferably in the range of / 0 , more preferably 5 to 40 mol%.
- the copolymer of the present invention when used as a light emitting material of a polymer light emitting device, in order to provide a polymer light emitting device having a long life and a long wavelength, the total number of repeating units represented by the formula (1-1) the total of all repeating units content copolymer, more preferably from 0.5 to 4 0 mole 0/0, 1 and particularly preferably 30 mol 0/0 From the viewpoint of the lifetime characteristics of the polymer light-emitting device, the copolymer of the present invention preferably has a polystyrene-equivalent number average molecular weight of 1 ⁇ 10 3 to 1 ⁇ 10 7 , and 1 ⁇ 10 4 To: 1 X 1 0 7 is more preferable.
- the copolymer of the present invention preferably has a polystyrene-equivalent weight average molecular weight of 1 ⁇ 10 3 to 1 ⁇ 10 7 , and 1 ⁇ 10 4 To: IX 10 7 is more preferable.
- the block (A) preferably has a polystyrene-equivalent number average molecular weight of 1 ⁇ 10 3 to 1 ⁇ 10 5 from the viewpoint of the lifetime characteristics of the polymer light emitting device.
- X 10 3 to 1 X 10 5 is more preferable.
- the block (A) preferably has a polystyrene-equivalent weight average molecular weight of 1 ⁇ 10 3 to 1 ⁇ 10 5 from the viewpoint of lifetime characteristics of the polymer light-emitting device. More preferably, it is 1 ⁇ 10 4 to 1 ⁇ 10 5 .
- the polystyrene-equivalent number average molecular weight and weight average molecular weight can be measured using size exclusion chromatography (SEC).
- SEC size exclusion chromatography
- the copolymer of the present invention has a formula (VI):
- [A] is the maximum number of blocks (A) and blocks ( ⁇ ') contained in the copolymer (if the number of blocks is the same, it is the number)
- [ ⁇ ] represents the number of blocks ( ⁇ ) contained in the copolymer.
- the copolymer of the present invention has the formula (VII):
- [C] is the maximum value of the polystyrene equivalent weight average molecular weight of the block (A) and the polystyrene equivalent weight average molecular weight of the block ( ⁇ ')). In the case of being the same, it is the weight average molecular weight.) And [D] represents the polystyrene equivalent weight average molecular weight of the copolymer.
- the protecting group those having a conjugated bond continuous with the conjugated structure of the main chain are preferable, and examples thereof include those having a structure bonded to an aryl group or a heterocyclic group via a carbon-carbon bond. It is done. Specifically, substituents described in Chemical formula 10 of JP-A-9-45 4 78 are exemplified.
- Examples of the good solvent for the copolymer of the present invention include black mouth form, methylene chloride, dichloroethane, tetrahydrofuran, tonorene, xylene, mesitylene, tetralin, decalin, and n-butylbenzene.
- the force depending on the structure and molecular weight of the copolymer of the present invention Usually, 0.1% by weight or more of the copolymer can be dissolved in these solvents.
- Examples of the copolymer of the present invention include copolymers (AB1 to AB36) in which the following block (A) and block (B) are combined. [Copolymer AB1]
- Block (B) [Copolymer AB7]
- Examples of the method for producing the copolymer (copolymer having a block) of the present invention include, for example, a method of synthesizing a high molecular weight block (A) and adding a monomer constituting the block (B) to the polymer.
- a method of synthesizing a high molecular weight block (A) and adding a monomer constituting the block (B) to the polymer is a method in which a high molecular weight block (A) and a high molecular weight block (B) are separately synthesized beforehand and polymerized together. In the latter method, the block (A) and the block (B) may be directly bonded to form a copolymer.
- the block (A) and the block (B) (B) A compound that becomes a group (linking group) to be linked to, or a copolymer having a higher molecular weight by adding a separate block.
- An example of the method for producing the copolymer of the present invention will be described in more detail.
- one A— represents a repeating unit represented by the formula (1-1) or a repeating unit represented by the formula (1-2), and A r 1 is the same as above.
- W 1 and W 2 may be the same or different, and represent a substituent involved in the condensation polymerization.
- Method for producing the copolymer comprising a step of synthesizing the copolymer (ii) Condensation polymerization of only the compound represented by W 1 — A— W 2 ; condensation polymerization of the compound represented by W′-AW 2 and the compound represented by W 1 — A r 1 — W 2 Or a compound represented by W 1 — A _ W 2 , a compound represented by W 1 — A r 1 — W 2 and a compound having two substituents involved in condensation polymerization are first polymerized by condensation polymerization.
- W 1 - are of compounds represented by Ar'-W 2 and W 1 - condensation polymerization to a compound represented by a r 2 -W 2 Or the first compound, the compound represented by W 1 — Ari—W 2 , the compound represented by ⁇ ⁇ -8: 2 — ⁇ ⁇ 2 and two substitutions involved in condensation polymerization
- a step of synthesizing a second compound, and condensation-polymerizing the first compound and the second compound (two substituents involved in the condensation polymerization) A process for synthesizing the block ( ⁇ ′) and / or the copolymer having the block ( ⁇ ) and the block ( ⁇ ) by the condensation polymerization in the presence of the compound having .
- a first compound is synthesized by condensation polymerization of a compound having two substituents involved in the condensation polymerization, and this first compound and a compound represented by W′_A—W 2 Or a compound represented by W 1 — A— W 2 and W 1 — A r 1 -W
- the block (A,) and the block (A) can be polymerized by condensation polymerization with the compound represented by 2 (may be condensation polymerization in the presence of a compound having two substituents involved in condensation polymerization).
- a process for producing the copolymer comprising the step of synthesizing a copolymer having a block (A).
- Condensation polymerization may be carried out in the presence of a compound having two substituents involved in condensation polymerization), and / or a copolymer having block ( ⁇ ) and / or block ( ⁇ ) and block ( ⁇ )
- a process for producing the copolymer comprising the step of synthesizing
- the molecular weight of block ( ⁇ ) and block ( ⁇ ) can be adjusted by selecting the stoichiometric amount of monomer to be polymerized, catalyst type, catalyst amount, addition of base or acid, reaction temperature, solvent type, solution concentration, etc. Or by adjusting.
- the compound having two substituents involved in the condensation polymerization is a repeating unit represented by the formula (1-1), (I-12) (II) and (III). It is a compound for introduce
- the substituents (W 1 W 2 , W 3 and W 4 ) involved in the condensation polymerization include halogen atoms, alkyl sulfo groups, aryl sulfo groups, aryl alkyl sulfo groups, boric acid ester residues, sulfonium Examples thereof include a methyl group, a phosphonium methyl group, a phosphonate methyl group, a monohalogenated methyl group, one B (OH) 2 , a formyl group, a cyano group, and a vinyl group.
- the alkylsulfo group include a methanesulfo group, an ethanesulfo group, and a trifluoromethanesulfo group.
- arylsulfo groups examples include benzenesulfo groups and p-toluenesulfo groups.
- arylalkylsulfo group a benzylsulfo group is exemplified.
- Me represents a methyl group
- Et represents an ethyl group.
- sulfoyumethyl group examples include groups represented by the following formulae.
- X represents a halogen atom
- Me represents a methyl group
- Ph represents a phenyl group.
- Examples of the phosphonium methyl group include groups represented by the following formulae.
- X represents a halogen atom and Ph represents a phenyl group.
- Examples of the phosphonate methyl group include groups represented by the following formulae.
- R ′ represents an alkyl group, an aryl group or an aryl alkyl group.
- the monohalogenated methyl group include a methyl fluoride group, a methyl chloride group, a methyl bromide group, and a methyl iodide group. Is done.
- the preferred substituents involved in the condensation polymerization vary depending on the type of polymerization reaction. For example, when using a zero-valent nickel complex (N i (0) complex) such as a Yamamoto coupling reaction, A halogen atom, an alkylsulfo group, an arylsulfo group, an arylalkylsulfo group is preferable, and a Suzuki force pulling reaction, etc.
- the copolymer of the present invention can be produced, for example, by dissolving a monomer compound as a raw material in an organic solvent and using an alkali or a suitable catalyst at a temperature not lower than the melting point of the organic solvent and not higher than the boiling point.
- a method for producing the copolymer of the present invention “Organic Reactions”, pp. 14, 270—4 90, John Wiley & Sons, Inc.
- a known condensation reaction can be used depending on the substituent involved in the condensation polymerization.
- Examples include a method of electrochemically oxidatively polymerizing, a method of decomposing an intermediate polymer having an appropriate leaving group, a method of polymerizing by Suzuki coupling reaction, a method of polymerizing by Grignard reaction, And the method of polymerizing with a zero-valent nickel complex is preferable because the structure of the copolymer is easy to control.
- one preferred embodiment is that the substituents involved in the condensation polymerization each independently comprise a halogen atom, an alkylsulfo group, an arylsulfo group, and an arylalkylsulfo group.
- a production method in which the condensation polymerization is performed in the presence of a zero-valent nickel complex examples include dihalogenated compounds, bis (alkyl sulfonate) compounds, bis (aryl sulfonate) compounds, bis (aryl alkyl sulfonate) compounds, halogen-alkyl sulfonate compounds, and norogen monoaryl compounds.
- Examples thereof include sulfonate compounds, halogen-aryl alkyl sulfonate compounds, alkyl sulfonate-aryl sulfonate compounds, alkyl sulfonate-aryl alkyl sulfonate compounds, and aryl sulfonate to aryl alkyl sulfonate compounds.
- the method for producing the copolymer of the present invention is preferably a monomer compound used as a raw material.
- a method of producing a copolymer with a controlled sequence by using a sulfonate-arylalkyl sulfonate compound can be mentioned.
- the substituents involved in the condensation polymerization are each independently a halogen atom, an alkylsulfo group, an arylsulfo group, an arylalkylsulfo group, _ A group selected from the group consisting of B (OH) 2 and boric acid ester residues, and the moles of halogen atom, alkylsulfo group, arylsulfo group and arylalkylsulfo group possessed by the monomer compound as a whole raw material
- the ratio (KZ J) of the sum of the numbers (J) to the sum of the moles of one B (OH) 2 and the borate residue (K) is substantially 1 (usually 0.7 to 1.2).
- condensation polymerization is performed using a nickel catalyst or a palladium catalyst.
- a dihalogenated compound a bis (alkyl sulfonate) compound, a bis (aryl sulfonate) compound or a bis (aryl alkyl sulfonate) compound, a diboric acid compound or a diboric acid ester compound and The combination of is mentioned.
- this solvent varies depending on the compound and reaction used, but it is generally preferable to perform sufficient deoxygenation treatment to suppress side reactions.
- the condensation polymerization is preferably allowed to proceed under an inert atmosphere such as argon or nitrogen.
- solvent is preferably dehydrated. However, this is not the case in the case of a two-phase reaction with water, such as a Suzuki force pulling reaction.
- Solvents include saturated hydrocarbons such as pentane, hexane, heptane, octane, cyclohexane and decalin, aromatic hydrocarbons such as benzene, toluene, ethylbenzene, n_butylbenzene, xylene, mesitylene and tetralin, carbon tetrachloride , Chlorohonolem, Dichloromethane, Chlorobutane, Bromobutane, Black-opened pentane, Bromopentane, Black-opened hexane, Bromohexane, Chlorohexane, Halogenated saturated hydrocarbons such as Bromocyclohexane, Black-opened benzene, Dichloro-opened benzene, Trich
- solvents may be used alone or in combination.
- ethers are preferred in the Yamamot o coupling reaction, and tetrahydrofuran and jetyl ether are more preferred.
- a two-phase reaction with water such as a Suzuki coupling reaction
- a two-phase system of an aromatic hydrocarbon and water is preferable, and toluene, ethynolebenzene, xylene, and mesitylene are more preferable.
- alkali or a suitable catalyst may be added to accelerate the reaction. These can be selected according to the reaction used.
- the alkali or catalyst is preferably one that is sufficiently dissolved in the solvent used in the reaction.
- alkali examples include inorganic bases such as potassium carbonate, sodium carbonate, and cesium carbonate; organic bases such as triethylamine; and inorganic salts such as cesium fluoride.
- the catalyst examples include palladium [tetrakis (triphenylphosphine)] and palladium acetate.
- the purity affects the performance of the device such as the light emitting characteristics.
- Polymerization is preferably performed after purification by a method such as sublimation purification or recrystallization.
- the obtained copolymer is preferably subjected to a purification treatment such as desalting, metal removal, reprecipitation purification, and fractionation by chromatography.
- the copolymer of the present invention can be used as a light emitting material, a hole transporting material, and an electron transporting material of a polymer light emitting device.
- a composition in combination with at least one selected from the group consisting of a light emitting material, a hole transport material, and an electron transport material.
- the composition of the present invention contains the copolymer and at least one material selected from the group consisting of a light emitting material, a hole transport material, and an electron transport material force.
- the light-emitting material, the hole transport material, and the electron transport material do not include the copolymer.
- the composition may contain two or more kinds of the copolymers.
- the composition may contain two or more kinds of light emitting materials, may contain two or more kinds of hole transport materials, may contain two or more kinds of electron transport materials, and the light emitting material and the hole transport material.
- a light emitting material and an electron transport material may be included, and a hole transport material and an electron transport material may be included.
- the light-emitting material include low-molecular fluorescent materials. Examples thereof include naphthalene derivatives, anthracene, anthracene derivatives, pyrene, pyrene derivatives, perylene, perylene derivatives, polymethine dyes, xanthene dyes, coumarin dyes.
- Dyes such as cyanine dyes, gold having 8-hydroxyquinoline as a ligand Metal complexes, metal complexes having 8-hydroxyquinoline derivatives as ligands, other fluorescent metal complexes, aromatic amines, tetraphenylcyclopentagen, tetraphenylcyclopentagen derivatives, tetraphenylbutadiene, Low, such as tetraphenylbutadiene derivatives, stilbene series, carbon-containing aromatic series, oxazole series, furoxane series, thiazole series, tetraarylmethane series, thiadiazole series, pyrazole series, metacyclophane series, acetylene series, etc.
- Fluorescent materials of molecular compounds are listed. In addition to these light emitting materials, those described in JP-A-57-51781, JP-A-59-194393 and the like can also be mentioned. These luminescent materials may be used alone or in combination of two or more.
- the hole transport material include polyvinyl carbazole and derivatives thereof, polysilane and derivatives thereof, polysiloxane derivatives having aromatic amines in the side chain or main chain, pyrazoline derivatives, arylamine derivatives, stilbene derivatives, triphenyldiamine.
- Examples of the electron transport material include oxadiazole derivatives, anthraquinodimethane and derivatives thereof, benzoquinone and derivatives thereof, naphthoquinone and derivatives thereof, anthraquinone and derivatives thereof, tetracyananthraquinodimethane and derivatives thereof, fluorenone derivatives, diphenone derivatives. Nyldisanoethylene and derivatives thereof, diphenoquinone derivatives, metal complexes of 8-hydroxyquinoline and derivatives thereof, polyquinoline and derivatives thereof, polyquinoxaline and derivatives thereof, polyfluorene and derivatives thereof, and the like. These electron transport materials may be used alone or in combination of two or more.
- the proportion of the light emitting material in the composition is usually 1% by weight to 80% by weight with respect to the total weight of the composition. More preferably, it is 5 to 60% by weight.
- the ratio of the hole transport material in the composition is usually 1% by weight to 80% by weight with respect to the total weight of the composition. And more preferably 5 wt. /. ⁇ 60% by weight.
- the proportion of the electron transport material in the composition is usually 1% by weight to 80% by weight with respect to the total weight of the composition. It is preferably 5% by weight to 60% by weight.
- the composition containing the copolymer of the present invention and a solvent is preferably in a liquid state at the time of device fabrication, and is typically in a liquid state at normal pressure (ie, 1 atm) and 25 ° C. preferable.
- the composition is generally called an ink, an ink composition, a solution or the like.
- the composition is useful for producing a light emitting device such as a polymer light emitting device.
- the proportion of the solvent in the composition is usually preferably 1% by weight to 99.9% by weight with respect to the total weight of the composition, More preferably, it is 60 wt% to 99.9 wt%, and more preferably 90 wt% to 99.8 wt%. / 0 .
- drying it may be dried in a state heated to about 50 to 150 ° C, or dried at a reduced pressure of about 10 to 3 Pa.
- a coating method such as a slit coating method, a chiral coating method, a spray coating method, a screen printing method, a flexographic printing method, an offset printing method, an ink jet printing method, or a nozzle coating method can be used.
- Printing methods such as a screen printing method, a flexographic printing method, an offset printing method, and an ink jet printing method are preferable in that pattern formation and multicolor coating are easy.
- the viscosity of the composition varies depending on the printing method, but is preferably in the range of 0.5 to 500 mPa's at 25 ° C. In the case where the liquid composition passes through the discharge device, such as an ink jet printing method.
- the viscosity is preferably in the range of 0.5 to 2 O mPa ⁇ s at 25 ° C, in order to prevent clogging and flight bending at the time of discharge.
- the solvent contained in the composition those capable of dissolving or dispersing components other than the solvent in the composition are preferable.
- the solvent include chlorine-containing solvent such as black mouth form, salt methylene, 1,2-dichloroethane, 1,1,2_trichloroethane, black mouth benzene, o-dichlorobenzene, tetrahydrofuran, dioxane and the like.
- Ether solvent aromatic hydrocarbon solvent such as toluene, xylene, trimethylbenzene, mesitylene, cyclohexane, methylcyclohexane, n-pentane, n-hexane, n-heptane, n_octane, n-nonane, Aliphatic hydrocarbon solvents such as n-decane, ketone solvents such as acetone, methyl ethyl ketone, and cyclohexanone, ester solvents such as ethyl acetate, butyl acetate, methyl benzoenite, and ethyl cellosolve acetate, ethylene glycol ⁇ ethylene glycol monobuty ⁇ / ether, ethylene glycol monomono ethylene ⁇ /, Ethylene glycol / remonomethinoate, dimethoxetane, propylene glycol, jetoxymethane, trie
- solvents may be used alone or in combination.
- the solvents it is preferable from the viewpoints of viscosity, film-forming property, and the like to include an organic solvent having a structure containing a benzene ring, a melting point of 0 ° C. or lower, and a boiling point of 100 ° C. or higher.
- the solvent include aromatic hydrocarbon solvents, aliphatic hydrocarbon solvents, ester solvents from the viewpoints of solubility of the components other than the solvent in the composition in the solvent, uniformity during film formation, viscosity characteristics, and the like.
- Ketone solvents are preferred, and specifically, toluene, xylene, ethylbenzene, jetinorebenzene, trimethylolbenzene, mesitylene, n-propylbenzene, i-propylbenzene, n-butylbenzene, i_butylbenzene , S-butynolebenzene, aniso / ⁇ , ethoxybenzene, 1-methenolenaphthalene, cyclohexane, cyclohexanone, cyclohexenolebenzene, bicyclohexenole, cyclohexenolecyclohexanone, n-heptinolecyclohexane, n Monohexyl / lecyclohexane, methylbenzoate, 2_propinolesi L-Hexanone, 2_Heptanone, 3-Heptanone, 4-Heptanone, 2-Oct
- the type of solvent contained in the composition is preferably two or more, more preferably two to three, and two types from the viewpoints of film formability, device characteristics, and the like. Is more preferable. If the composition contains two solvents, one of the solvents is 25 ° C. In the solid state. From the viewpoint of film formability, it is preferable that one type of solvent has a boiling point of 180 ° C or higher, and the other one type of solvent preferably has a boiling point of less than 180 ° C. More preferably, the solvent has a boiling point of 20 ° C. or higher, and the other one solvent has a boiling point of less than 180 ° C.
- the component excluding the solvent from the composition is dissolved in the solvent at 60 ° C.
- one of the two types of solvent includes 2 At 5 ° C, it is preferable that 0.2% by weight or more of the component excluding the solvent from the composition dissolves.
- one or two of the solvents may be in a solid state at 25 ° C.
- at least one of the three solvents has a boiling point of 180 ° C or higher, and at least one solvent has a boiling point of less than 180 ° C.
- at least one of the three solvents is a solvent having a boiling point of 20 ° C.
- the solvent is less than 80 ° C. From the viewpoint of viscosity, it is preferable that 0.2% by weight or more of the components obtained by removing the solvent from the composition is dissolved in two of the three solvents at 60 ° C. One of these solvents has a weight of 0.2% of the composition excluding the solvent at 25 ° C. It is preferable that / 0 or more dissolves. 'When the composition contains two or more solvents, the solvent having the highest boiling point is 40 to 90% by weight of the total solvent weight in the composition from the viewpoint of viscosity and film formability.
- the composition of the present invention is used for adjusting a stabilizer, viscosity and / or surface tension as other optional components. It may contain additives, antioxidants and the like. Each of these optional components may be used alone or in combination of two or more.
- the stabilizer that may be contained in the composition of the present invention include phenolic antioxidants and phosphorus antioxidants.
- Examples of the additive for adjusting the viscosity and / or surface tension that may be contained in the composition of the present invention include a high molecular weight compound (thickener), a poor solvent, and a viscosity for increasing the viscosity.
- the high molecular weight compound is not particularly limited as long as it does not inhibit light emission and charge transport. When the composition contains a solvent, it is usually soluble in the solvent.
- the high molecular weight compound for example, high molecular weight polystyrene, high molecular weight polymethyl methacrylate, or the like can be used.
- the weight average molecular weight in terms of polystyrene of the high molecular weight compound is preferably 500,000 or more, and more preferably 100,000 or more.
- a poor solvent can also be used as a thickener.
- the antioxidant that may be contained in the composition of the present invention is not limited as long as it does not inhibit light emission or charge transport. When the composition contains a solvent, it is usually soluble in the solvent. Is.
- antioxidants examples include phenolic antioxidants and phosphorus antioxidants. By using an antioxidant, the storage stability of the copolymer and the solvent can be improved.
- the thin film of the present invention will be described. This thin film is formed using the copolymer.
- the type of thin film include luminescent, thin film, and conductive thin film.
- the thin film may contain a material selected from the group consisting of a light emitting material, a hole transport material and an electron transport material.
- the luminescent thin film of the present invention contains the copolymer of the present invention.
- the luminescent thin film may further contain a luminescent material, a hole transport material or an electron transport material, or a combination of two or more thereof. Specific examples of these light-emitting materials, hole transport materials, and electron transport materials are as described above.
- the light-emitting thin film preferably has a quantum yield of light emission of 50% or more, more preferably 60% or more, and 70% or more from the viewpoint of device brightness, light emission voltage, or the like. Is more preferable.
- the conductive thin film preferably has a surface resistance of 1 ⁇ or less.
- the electrical conductivity can be increased by doping the thin film with Lewis acid, ionic compounds, or the like.
- the surface resistance is more preferably 100 ⁇ or less, and further preferably 10 ⁇ or less.
- the polymer light-emitting device of the present invention comprises an anode, a cathode, and an organic layer including the copolymer and provided between the anode and the cathode.
- the organic layer may further contain a light emitting material, a hole transport material, an electron transport material, or a combination of two or more thereof. Specific examples of these light-emitting materials, hole transport materials, and electron transport materials are as described above.
- the organic layer is preferably a light emitting layer.
- the polymer light emitting device of the present invention includes (1) a polymer light emitting device in which an electron transport layer is provided between the cathode and the light emitting layer, and (2) a hole transport layer is provided between the anode and the light emitting layer.
- Polymer light emitting device (3) polymer light emitting device in which an electron transport layer is provided between the cathode and the light emitting layer, and a hole transport layer is provided between the anode and the light emitting layer. More specifically, the following structures a ) to d) are exemplified. a) Anode / light emitting layer Z cathode
- the light emitting layer is a layer having a function of emitting light
- the hole transporting layer is a hole. It is a layer having a function of transporting
- the electron transport layer is a layer having a function of transporting electrons.
- the electron transport layer and the hole transport layer are collectively referred to as a charge transport layer. Two or more light emitting layers, hole transport layers, and electron transport layers may be used independently. Examples of the method for forming the light emitting layer include a method by film formation from a solution.
- the film formation method from solution includes spin coating method, casting method, micro gravure coating method, gravure coating method, bar coating method, roll coating method, wire one bar coating method, dip coating method, slit coating method, and mild one coating.
- Application methods such as a spray coating method, a screen printing method, a flexographic printing method, an offset printing method, an ink jet printing method, and a nozzle coating method can be used.
- Printing methods such as screen printing, flexographic printing, offset printing, and inkjet printing are preferred because they allow easy pattern formation and multicolor coating.
- the same technique can be applied when mixing materials and charge transport materials, which is advantageous in production.
- the optimum value for the thickness of the light emitting layer depends on the material used.
- the efficiency may be selected to be an appropriate value, for example, 1 nm to l ⁇ , preferably 2 nm to 500 nm, and more preferably 5 ⁇ ! ⁇ 200 nm
- a light emitting material other than the copolymer may be mixed and used in the light emitting layer.
- a light emitting layer containing a light emitting material other than the copolymer may be laminated with a light emitting layer containing the copolymer.
- known materials can be used as the light emitting material other than the copolymer.
- the group amine, tetraphenylcyclopentagen and derivatives thereof, tetraphenylbutadiene and derivatives thereof, and the like can be used.
- the luminescent material those described in JP-A-57-51781 and 59-194393 can also be used.
- the hole transport material to be used includes polybulur rubazole and derivatives thereof, polysilane and derivatives thereof, poly having aromatic amines in side chains or main chains.
- the hole transport material used for the hole transport layer polyvinyl carbazole and derivatives thereof, polysilane and derivatives thereof, polysiloxane derivatives having an aromatic amine compound group in the side chain or main chain, polyaniline Polymeric hole transport materials such as phosphorus and derivatives thereof, polythiophene and derivatives thereof, poly (p-phenylenevinylene) and derivatives thereof, poly (2,5-diethylenevinylene) and derivatives thereof are preferable, and more preferable.
- polyvinylcarbazole and derivatives thereof, polysilane and derivatives thereof, and polysiloxane derivatives having an aromatic amine in the side chain or main chain are preferable, and more preferable.
- a low-molecular hole transport material it is preferably used by dispersing in a polymer binder.
- Polyvinylcarbazole and derivatives thereof are obtained, for example, from a vinyl monomer by cation polymerization or radical polymerization.
- polysilane and derivatives thereof examples include compounds described in Chemical Review (Chem. Rev.), 89, 1359 (1989), GB2300196 published specification. As the synthesis method, the methods described in these can be used, but the kicking method is particularly preferably used. Since the polysiloxane derivative has almost no hole transporting property in the siloxane skeleton structure, those having the structure of the low molecular hole transporting material in the side chain or main chain are preferably used. Particularly, those having a hole transporting aromatic amine in the side chain or main chain are exemplified.
- a method for forming a hole transport layer as a low molecular hole transport material, a method of forming a film from a mixed solution with a polymer binder is exemplified.
- a method by film formation from a solution is exemplified.
- the solvent used for film formation from a solution should be one that dissolves the hole transport material.
- chlorine such as black mouth form, methylene chloride, dichloroethane, etc.
- Solvents such as ether solvents such as tetrahydrofuran, aromatic hydrocarbon solvents such as toluene and xylene, ketone solvents such as acetone and methyl ethyl ketone, ethyl acetate, butyl acetate, ethyl cellosolve acetate, etc.
- ester solvents such as acetone and methyl ethyl ketone, ethyl acetate, butyl acetate, ethyl cellosolve acetate, etc.
- ester solvents such as acetone and methyl ethyl ketone, ethyl acetate, butyl acetate, ethyl cellosolve acetate, etc.
- ester solvents such as acetone and methyl ethyl ketone, ethyl acetate, butyl acetate, ethyl cellosolve acetate, etc.
- the film formation method from solution includes spin coating method, casting method, micro gravure coating method, gravure coating method, bar coating method, roll coating method, wire one bar coating method, dip coating method, slit coating method, and chiral one coating. Law
- Application methods such as spray coating, screen printing, flexographic printing, offset printing, ink jet printing, and nozzle coating can be used.
- Printing methods such as screen printing, flexographic printing, offset printing, and inkjet printing are preferred because they allow easy pattern formation and multicolor coating.
- the polymer binder to be mixed those not extremely disturbing charge transport are preferable, and those not strongly absorbing visible light are preferably used.
- the polymer binder include polycarbonate, polyacrylate, polymethyl acrylate, polymethyl methacrylate, polystyrene, polychlorinated butyl, and polysiloxane.
- the film thickness of the hole transport layer varies depending on the material used and may be selected so that the drive voltage and light emission efficiency are appropriate. At least, the thickness should be such that no pinholes are generated. If the thickness is too thick, the drive voltage of the element increases, which is not preferable. Therefore, the film thickness of the hole transport layer is, for example, I n n! ⁇ L / z m, preferably 2 nm to 500 nm, more preferably 5 n n! ⁇ 2 0 0 ⁇ m. '
- the electron transport material used can be used, known as oxadiazole derivatives, anthraquinodimethane and derivatives thereof, benzoquinone and derivatives thereof, naphthoquinone and derivatives thereof, anthraquinone and derivatives thereof, tetracyananthraquinodimethane and derivatives thereof, fluorenone derivatives, Examples include diphenyldisyanoethylene and its derivatives, diphenoquinone derivatives, metal complexes of 8-hydroxyquinoline and its derivatives, polyquinoline and its derivatives, polyquinoxaline and its derivatives, polyfluorene and its derivatives, etc. .
- oxadiazole derivatives benzoquinone and derivatives thereof, anthraquinone and derivatives thereof, metal complexes of 8-hydroxyquinoline and derivatives thereof, polyquinoline and derivatives thereof, polyquinoxaline and derivatives thereof, and polyfluorene and derivatives thereof are preferable.
- 2_ (4-Bifynyl) 1-5_ (4_t-Butylphenyl) 1 1, 3, 4_oxadiazole, benzoquinone, anthraquinone, tris (8-quinolinol) aluminum, polyquinoline are more preferred
- a low molecular weight electron transport material includes a vacuum deposition method from a powder, and a film formation method from a solution or a molten state, and a polymer electron transport material includes a solution or a melt from a molten state.
- a method using a membrane is exemplified.
- a polymer binder may be used in combination.
- any solvent that dissolves an electron transport material and / or a polymer binder may be used.
- the solvent examples include chlorine solvents such as chloroform, methyl chloride and dichloroethane, ether solvents such as tetrahydrofuran, aromatic hydrocarbon solvents such as toluene and xylene, acetone, and methyl ethyl ketone. And ketone solvents such as ethyl acetate, butyl acetate, and ethyl solvent acetoacetate. Film formation methods from solution or molten state include spin coating method, casting method, micro gravure coating method, gravure coating method, bar coating method, roll coating method, wire bar coating method, dip coating method, slit coating method.
- chlorine solvents such as chloroform, methyl chloride and dichloroethane
- ether solvents such as tetrahydrofuran
- aromatic hydrocarbon solvents such as toluene and xylene
- acetone acetone
- methyl ethyl ketone solvents such as ethyl acetate, but
- Application methods such as a spray coat method, a spray coat method, a screen printing method, a flexographic printing method, an offset printing method, an inkjet printing method, and a nozure coating method can be used.
- Printing methods such as a screen printing method, a flexographic printing method, an offset printing method, and an ink jet printing method are preferred in that pattern formation and multicolor coating are easy.
- the polymer binder to be mixed those not extremely disturbing charge transport are preferable, and those not strongly absorbing visible light are preferably used.
- polymer binder examples include poly (N-butylcarbazole), polyaniline and derivatives thereof, polythiophene and derivatives thereof, poly (p-phenylenediamine) and derivatives thereof, and poly (2,5-diethylenevinylene). And derivatives thereof, polycarbonate, polyacrylate, polymethyl acrylate, polymethyl methacrylate, polystyrene, polychlorinated vinyl, polysiloxane and the like.
- the film thickness of the electron transport layer differs depending on the material used, and it may be selected so that the drive voltage and the light emission efficiency are appropriate, but at least a thickness that does not cause pinholes is required. If the thickness is too thick, the drive voltage of the element increases, which is preferable.
- the film thickness of the electron transport layer is, for example, 1 nm to ltm, preferably 2 nm to 500 nm, and more preferably 5 nm to 200 nm.
- the charge transport layers provided adjacent to the electrode those that have the function of improving the charge injection efficiency from the electrode and have the effect of lowering the drive voltage of the element are particularly the charge injection layer (positive
- the charge injection layer or the insulating layer may be provided adjacent to the electrode in order to improve adhesion with the electrode or improve charge injection from the electrode.
- a thin buffer layer may be inserted at the interface between the charge transport layer and the light emitting layer in order to improve the adhesion of the interface or prevent mixing.
- the polymer light-emitting device provided with the charge injection layer is a polymer light-emitting device provided with a charge injection layer adjacent to one or both of the cathode and the anode.
- the following structures e) to p) are specifically mentioned.
- Anode / charge injection layer Hole transport layer Z light emitting layer
- the charge injection layer include a layer containing a conductive polymer, and between the anode and the hole transport layer.
- Examples include a layer containing a material having an electron affinity with a value intermediate to that of the electron transport material contained in the transport layer.
- the electric conductivity of the conducting polymer is preferably at most m N 10- 5 S / cm or more 10 3 S, leakage between luminescent pixels in order to reduce the current or less, more preferably m N m or more 10 2 S N 10- 5 S, below 10- 5 S / cm or more on a 10 I m is more preferred.
- the electrical conductivity of the conducting 14 polymeric N 10- 5 S / cm or more 10 3 S to less m a suitable amount of ions are doped into the conducting polymer.
- the type of ions to be doped is an anion for the hole injection layer and a cation for the electron injection layer.
- anions include polystyrene sulfonate ions, alkylbenzene sulfonate ions, camphor sulfonate ions, and examples of cations include lithium ions, sodium ions, potassium ions, and tetrabutyl ammonium ions. Can be mentioned.
- the thickness of the charge injection layer is usually 1 nm to: 100 nm, preferably 2 nm to 50 nn ⁇ S.
- the material used for the charge injection layer may be selected in relation to the material of the electrode and the adjacent layer, such as polyaniline and its derivatives, polythiophene and its derivatives, polypyrrole and its derivatives, polyphenylene vinylene and its Derivatives, Polyethylene biylene and its derivatives, Polyquinoline and its derivatives, Polyquinoxaline and its derivatives, Conductive polymers such as polymers containing an aromatic amine structure in the main chain or side chain, Metal phthalocyanine (copper phthalocyanine Etc.), carbon and the like.
- the insulating layer has a function of facilitating charge injection. Average of this insulation layer The thickness is usually 0.5:! ⁇ 20 nm, preferably 0.5 ⁇ : I 0 nm, more preferably :! ⁇ 5 nm.
- Examples of the material for the insulating layer include metal fluorides, metal oxides, and organic insulating materials.
- Examples of the polymer light emitting device provided with the insulating layer include a polymer light emitting device provided with an insulating layer adjacent to either or both of the cathode and the anode. Specific examples include the following structures q) to ab).
- the substrate on which the polymer light emitting device of the present invention is formed should not change when the electrode and the organic layer are formed.
- substrates such as glass, plastic, polymer film, and silicon are exemplified.
- the electrode on the opposite side to the electrode closer to the substrate is preferably transparent or translucent.
- it is usually preferable that at least one of the anode and cathode electrodes is transparent or translucent, and the anode side is transparent or translucent.
- a material for the anode a conductive metal oxide film, a translucent metal thin film, or the like is used.
- a film made of a conductive material made of indium oxide, zinc oxide, tin oxide, or a composite thereof such as indium / tin oxide (ITO), indium / zinc oxide, etc. NESA, etc.), gold, platinum, silver, copper, etc. are used, and ITO, indium 'zinc' oxide, and tin oxide are preferable.
- the method for producing the anode include a vacuum deposition method, a sputtering method, an ion plating method, and a plating method.
- an organic transparent conductive film such as polyaniline and derivatives thereof, polythiophene and derivatives thereof may be used.
- the film thickness of the anode can be selected in consideration of light transmission and electrical conductivity, but is usually 10 nm to 10 / m, preferably 20 nm to: I ⁇ m, 50 11 111 to 500 11 111 is preferred.
- a layer made of a phthalocyanine derivative, a conductive polymer, carbon, or the like, or a layer made of a metal oxide, a metal fluoride, an organic insulating material, or the like may be provided on the anode.
- the material of the cathode is preferably a material having a low work function, such as lithium, sodium, potassium, rubidium, cesium, beryllium, magnesium, force subsequentlyium, strontium, notrium, anoleminium, scandium, vanadium, zinc, yttrium, Metals such as indium, cerium, samarium, europium, terbium, ytterbium, and alloys of two or more of them, or one or more of them, gold, silver, platinum, copper, manganese, titanium, cobalt, Alloys with one or more of nickel, tungsten, tin, graphite or dalaphite intercalation compounds are used.
- a low work function such as lithium, sodium, potassium, rubidium, cesium, beryllium, magnesium, force convergeium, strontium, notrium, anoleminium, scandium, vanadium, zinc, yttrium, Metals such as indium, cerium, samarium
- the thickness of the cathode can be selected in consideration of electrical conductivity and durability, but usually ⁇ ⁇ ⁇ ! ⁇ lO / zm, preferably 20 nm to 1 ⁇ m, more preferably 50 nm to 500 nm.
- a vacuum deposition method, a sputtering method, a laminating method in which a metal thin film is thermocompression bonded, and the like are used.
- a layer made of a conductive polymer, or a layer made of a metal oxide, a metal fluoride, an organic insulating material, or the like may be provided.
- a protective layer for protection may be attached. In order to use the polymer light emitting device stably for a long period of time, it is preferable to attach a protective layer and Z or a protective cover in order to protect the device from the outside.
- the protective layer resin, metal oxide, metal fluoride, metal boride and the like can be used.
- a glass plate, a plastic plate having a low water permeability treatment on the surface, or the like can be used, and a method of sealing the cover by bonding it to the element substrate with a thermosetting resin or a photo-curing resin is preferable. Used. If the space is maintained using a spacer, it is easy to prevent the device from being scratched. If an inert gas such as nitrogen nitrogen is sealed in the space, oxidation of the cathode can be prevented, and further, a desiccant such as barium oxide is adsorbed in the manufacturing process by installing in the space. It is easy to suppress moisture from damaging the element.
- the polymer light emitting device of the present invention emits light for a long time. The evaluation of this period varies depending on the use of the polymer light-emitting device, but the time until the luminance decreases from the driving start luminance to 75% or the time until the luminance decreases from the driving start luminance to 50%. It is evaluated with.
- the polymer light-emitting device of the present invention includes a planar light source, a segment display device, a dot matrix display device, a liquid crystal display device (for example, a backlight) and the like, an electrophotographic printer light source (ie, a printer head material) ), Can be used for image sensor materials, optical fiber materials, and the like.
- the planar anode and cathode may be arranged so as to overlap each other.
- a method of forming either the anode or the cathode or both electrodes in a pattern A segment type display element that can display numbers, letters, simple symbols, etc. can be obtained by forming a pattern using any of these methods and arranging several electrodes so that they can be independently turned on and off. .
- both the anode and the cathode should be formed in stripes and arranged so as to be orthogonal. Partial color display and multi-color display are possible by separately applying a plurality of types of polymer compounds having different emission colors or by using a color filter or a two-light conversion filter.
- the dot matrix element can be driven passively, or may be driven actively in combination with a TFT or the like.
- These display elements can be used as a display device such as a computer, a television, a portable terminal, a cellular phone, a force-pigation, a video-powered mea finder.
- planar light-emitting element is thin and self-luminous, and can be suitably used as a planar light source for backlight of a liquid crystal display device or a planar illumination light source. If a flexible substrate is used, it can also be used as a curved light source or display device. ⁇ Organic transistor>
- the copolymer of the present invention can be suitably used as a material for a polymer field effect transistor, especially as an active layer.
- a source electrode and a drain electrode are usually provided in contact with an active layer made of a polymer, and a gate electrode is provided with an insulating layer in contact with the active layer interposed therebetween.
- the polymer field effect transistor is usually formed on a supporting substrate.
- the support substrate the material is not limited as long as the characteristics as a field effect transistor are not hindered.
- a force glass substrate, a flexible film substrate, or a plastic substrate can also be used.
- the polymer field effect transistor can be produced by, for example, a known method described in JP-A-5-110069.
- an organic solvent-soluble copolymer As a film-forming method from a solution obtained by dissolving an organic solvent-soluble 14 copolymer in a solvent, a spin coating method, a casting method, a micro gravure coating method, a gravure coating method, a bar coating method, a roll coating method, Coating methods such as wire bar coating, dip coating, spray coating, screen printing, flexographic printing, offset printing, and inkjet printing can be used.
- a sealed polymer field effect transistor obtained by sealing a polymer field effect transistor after production is preferable.
- Sealing methods include ultraviolet (UV) curable resin, thermosetting resin, inorganic Si ON x film, etc., glass plate and film UV curable resin, thermosetting resin, etc. The method of pasting together is mentioned.
- UV curable resin ultraviolet
- thermosetting resin thermosetting resin
- thermosetting resin inorganic Si ON x film
- thermosetting resin thermosetting resin
- the copolymer of the present invention is used as an organic semiconductor layer of a Schottky barrier type element that utilizes an interface between an organic semiconductor and a metal as a material for a solar cell, or an organic semiconductor / inorganic semiconductor interface or an organic semiconductor layer. It can be suitably used as an organic semiconductor layer of a pn heterojunction element utilizing an interface between semiconductors.
- an ohmic electrode for example, a p-type semiconductor layer is formed on ITO, an n-type semiconductor layer is further stacked, and an ohmic electrode is provided thereon. It only has to be done.
- the solar cell is usually formed on a support substrate.
- the material of the support substrate is not limited as long as the characteristics as an organic photoelectric conversion element are not impaired, but a glass substrate, a flexible film substrate, or a plastic substrate can also be used.
- the solar cell can be produced by, for example, a method described in Synth. Met., 102, 982 (1999) or a known method described in Science, 270 1789 (1995).
- the polystyrene-reduced number-average molecular weight and weight-average molecular weight of the copolymer were determined by size exclusion chromatography (SEC) (manufactured by Shimadzu Corporation, trade name: LC ⁇ ⁇ ).
- SEC size exclusion chromatography
- the copolymer to be measured is about 5% by weight. It was dissolved in tetrahydrofuran to a concentration of / 0 , and 50 ⁇ L was injected into SEC. Tetrahydrofuran was used as the mobile phase of SEC and was allowed to flow at a flow rate of 0.6 mL / min.
- TSKg el Super HM-H manufactured by Tosohichi
- TSKg el SuperH2000 manufactured by Tosohichi
- a differential refractive index detector manufactured by Shimadzu Corporation, trade name: RID-10A was used as the detector.
- Pentama 1 was synthesized by the method described in JP 2004-534863 A.
- the recrystallized product was dissolved in DMF, and a DMF solution of N-bromosuccinimide was added dropwise, followed by stirring overnight at room temperature.
- the product was filtered and washed with methanol and deionized water. The washed product was recrystallized from hexane to obtain pentamer 11.
- the number average molecular weight in terms of polystyrene of the block (A) was 6.0 ⁇ 10 3 , and the weight average molecular weight in terms of polystyrene was 1.9 ⁇ 10 4 .
- the degree of polymerization of the block (A) was about 20.
- the copolymer ⁇ P_ 1> had a polystyrene equivalent number average molecular weight of 4.5 ⁇ 10 4 and a polystyrene equivalent weight average molecular weight of 1.5 ⁇ 10 5 .
- the copolymer ⁇ P-1> has the following block (A) and the following block (B).
- the total content of the repeating units represented by the formula (I-1) is 2 mol% with respect to all repeating units, and the two types of repeating units represented by the formula (1-2) Content is 6 moles based on all repeating units. / 0 .
- Ratio of calculated from the raw materials co polymer rather P- 1> in the block (A) is 32.3 mole 0/0, the content of the block (B) is 67.7 mol. / 0 .
- the reaction solution contains 2,7-bis (1,3,2-dioxaborolane-2-yl) -9,9 Xylfluorene (1.43 g), 2,7-dibromo-9,9-dihexylfluorene (0.62 g), bis (4 monobromophenyl) one (4-secondary butylphenyl) amine (0.73 g) , Dichlorobis (triphenylphosphine) palladium (6.
- the copolymer P_2> had a polystyrene equivalent number average molecular weight of 1.0 ⁇ 10 5 and a polystyrene equivalent weight average molecular weight of 2.7 ⁇ 10 5 .
- the copolymer ⁇ P_2> has the following block (A) and the following block (B).
- the repeating unit represented by the formula (I-1) is not contained, and the content of the repeating unit represented by the formula (I-2) is 6 mol% with respect to all repeating units.
- the ratio of the copolymer obtained from the raw materials ⁇ P_ 2> in the block (A) is 28. Is 5 mole 0/0, the content of the block (B) is 71.5 mol 0/0.
- copolymer ⁇ P_ 3> had a polystyrene equivalent number average molecular weight of 5.4 ⁇ 10 4 and a polystyrene equivalent weight average molecular weight of 1.2 ⁇ 10 5 .
- Copolymer ⁇ P_3> is a random copolymer having no block and having the following repeating units in the same composition ratio as copolymer ⁇ P-1>.
- copolymer P-5> had a polystyrene equivalent number average molecular weight of 7.9 ⁇ 10 4 and a polystyrene equivalent weight average molecular weight of 2.7 ⁇ 10 5 .
- Copolymer ⁇ P_5> is a random copolymer having the following repeating units:
- Copolymer instead of the xylene solution 1 ⁇ P_ 2> 1.
- red EL light emission having a peak at 67511111 was obtained when 8.0 yen was applied, and the emission wavelength was shorter than that of Example 3.
- the reaction solution contains 2,7_bis (1,3,2-dioxaborolane-2-yl) — 9,9-dioctyl.
- Fluorene (1.99 g)
- 2,7-Dibromo-1,9,9-Diotachinolefunoleolene (1.10 g)
- Bis (4-bromophenyl) One (4-Secondary butylphenyl) Oneamine (0 74 g), dichlorobis (triphenylphosphine) palladium (7.5 mg), and toluene (36 mL) were mixed and heated to 105 ° C.
- the precipitate was filtered and dried to obtain a solid.
- This solid was dissolved in toluene and purified by passing through an alumina column and a silica gel column.
- the obtained toluene solution was added dropwise to methanol (150 OmL), and the precipitate was filtered. After that, it was dried.
- the yield of the obtained copolymer ⁇ P-4> was 3.30 g.
- the copolymer ⁇ P-4> had a polystyrene equivalent number average molecular weight of 5.7 ⁇ 10 4 and a polystyrene equivalent weight average molecular weight of 1.3 ⁇ 10 5 .
- the copolymer ⁇ P_4> has the following block (A) and the following block (B).
- the total content of the repeating units represented by the formula (1-1) is 2 mol% with respect to all the repeating units, and the content of the repeating units represented by the formula (1-2) is 6 mol% with respect to the repeating unit.
- the copolymer of the present invention is used, a polymer light emitting device that emits light for a long time can be produced, and therefore the present invention is extremely useful industrially.
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Abstract
Description
Claims
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EP09762570A EP2289966A4 (en) | 2008-06-13 | 2009-06-10 | COPOLYMER AND LIGHT EMITTING POLYMER DEVICE THEREWITH |
US12/997,535 US20110127512A1 (en) | 2008-06-13 | 2009-06-10 | Copolymer and polymer light emitting device using the same |
CN2009801218519A CN102056960A (zh) | 2008-06-13 | 2009-06-10 | 共聚物及使用了其的高分子发光元件 |
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EP (1) | EP2289966A4 (ja) |
JP (1) | JP5471048B2 (ja) |
KR (1) | KR20110041463A (ja) |
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- 2009-06-08 JP JP2009136996A patent/JP5471048B2/ja active Active
- 2009-06-10 KR KR1020117000552A patent/KR20110041463A/ko not_active Application Discontinuation
- 2009-06-10 WO PCT/JP2009/060974 patent/WO2009151144A1/ja active Application Filing
- 2009-06-10 US US12/997,535 patent/US20110127512A1/en not_active Abandoned
- 2009-06-10 CN CN2009801218519A patent/CN102056960A/zh active Pending
- 2009-06-10 EP EP09762570A patent/EP2289966A4/en not_active Withdrawn
- 2009-06-11 TW TW098119497A patent/TW201008975A/zh unknown
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Also Published As
Publication number | Publication date |
---|---|
KR20110041463A (ko) | 2011-04-21 |
EP2289966A1 (en) | 2011-03-02 |
JP5471048B2 (ja) | 2014-04-16 |
JP2010018790A (ja) | 2010-01-28 |
CN102056960A (zh) | 2011-05-11 |
US20110127512A1 (en) | 2011-06-02 |
EP2289966A4 (en) | 2013-01-23 |
TW201008975A (en) | 2010-03-01 |
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