GB2267095A - Compounds with non-linear optical properties - Google Patents
Compounds with non-linear optical properties Download PDFInfo
- Publication number
- GB2267095A GB2267095A GB9308327A GB9308327A GB2267095A GB 2267095 A GB2267095 A GB 2267095A GB 9308327 A GB9308327 A GB 9308327A GB 9308327 A GB9308327 A GB 9308327A GB 2267095 A GB2267095 A GB 2267095A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hydrogen
- polymer
- group
- formula
- chromophore
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000003287 optical effect Effects 0.000 title claims abstract description 25
- 150000001875 compounds Chemical class 0.000 title claims description 64
- 229920000642 polymer Polymers 0.000 claims abstract description 96
- 150000002148 esters Chemical class 0.000 claims abstract description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 57
- 229910052739 hydrogen Inorganic materials 0.000 claims description 56
- 239000001257 hydrogen Substances 0.000 claims description 55
- -1 cyclic anhydrides Chemical class 0.000 claims description 41
- 150000002431 hydrogen Chemical class 0.000 claims description 37
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 30
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 21
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 18
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 17
- 125000001309 chloro group Chemical group Cl* 0.000 claims description 15
- 229920001577 copolymer Polymers 0.000 claims description 12
- 150000003949 imides Chemical class 0.000 claims description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 9
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 claims description 9
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 9
- SIKJAQJRHWYJAI-UHFFFAOYSA-N Indole Chemical compound C1=CC=C2NC=CC2=C1 SIKJAQJRHWYJAI-UHFFFAOYSA-N 0.000 claims description 8
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 claims description 8
- HGCIXCUEYOPUTN-UHFFFAOYSA-N cyclohexene Chemical compound C1CCC=CC1 HGCIXCUEYOPUTN-UHFFFAOYSA-N 0.000 claims description 8
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 8
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 8
- PEEHTFAAVSWFBL-UHFFFAOYSA-N Maleimide Chemical compound O=C1NC(=O)C=C1 PEEHTFAAVSWFBL-UHFFFAOYSA-N 0.000 claims description 7
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 claims description 7
- 229910052736 halogen Inorganic materials 0.000 claims description 7
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 7
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 claims description 6
- VZUHQRBBQSLSHS-SSZFMOIBSA-N Isoimide Chemical compound C1=CC(Br)=CC=C1\N=C/1C(CCCC2)=C2C(=O)O\1 VZUHQRBBQSLSHS-SSZFMOIBSA-N 0.000 claims description 6
- 238000009833 condensation Methods 0.000 claims description 6
- 230000005494 condensation Effects 0.000 claims description 6
- 230000009477 glass transition Effects 0.000 claims description 6
- DCUFMVPCXCSVNP-UHFFFAOYSA-N methacrylic anhydride Chemical compound CC(=C)C(=O)OC(=O)C(C)=C DCUFMVPCXCSVNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000006116 polymerization reaction Methods 0.000 claims description 6
- 229920002554 vinyl polymer Polymers 0.000 claims description 6
- AYKYXWQEBUNJCN-UHFFFAOYSA-N 3-methylfuran-2,5-dione Chemical compound CC1=CC(=O)OC1=O AYKYXWQEBUNJCN-UHFFFAOYSA-N 0.000 claims description 5
- OFNISBHGPNMTMS-UHFFFAOYSA-N 3-methylideneoxolane-2,5-dione Chemical compound C=C1CC(=O)OC1=O OFNISBHGPNMTMS-UHFFFAOYSA-N 0.000 claims description 5
- 125000001931 aliphatic group Chemical group 0.000 claims description 5
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 5
- 150000002367 halogens Chemical group 0.000 claims description 5
- 125000004169 (C1-C6) alkyl group Chemical group 0.000 claims description 4
- YBYIRNPNPLQARY-UHFFFAOYSA-N 1H-indene Chemical compound C1=CC=C2CC=CC2=C1 YBYIRNPNPLQARY-UHFFFAOYSA-N 0.000 claims description 4
- BUDQDWGNQVEFAC-UHFFFAOYSA-N Dihydropyran Chemical compound C1COC=CC1 BUDQDWGNQVEFAC-UHFFFAOYSA-N 0.000 claims description 4
- 125000001246 bromo group Chemical group Br* 0.000 claims description 4
- 125000004852 dihydrofuranyl group Chemical group O1C(CC=C1)* 0.000 claims description 4
- 125000001153 fluoro group Chemical group F* 0.000 claims description 4
- PZOUSPYUWWUPPK-UHFFFAOYSA-N indole Natural products CC1=CC=CC2=C1C=CN2 PZOUSPYUWWUPPK-UHFFFAOYSA-N 0.000 claims description 4
- RKJUIXBNRJVNHR-UHFFFAOYSA-N indolenine Natural products C1=CC=C2CC=NC2=C1 RKJUIXBNRJVNHR-UHFFFAOYSA-N 0.000 claims description 4
- 229930192474 thiophene Natural products 0.000 claims description 4
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 3
- 125000005462 imide group Chemical group 0.000 claims description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea group Chemical group NC(=O)N XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 3
- NJYFRQQXXXRJHK-UHFFFAOYSA-N (4-aminophenyl) thiocyanate Chemical group NC1=CC=C(SC#N)C=C1 NJYFRQQXXXRJHK-UHFFFAOYSA-N 0.000 claims description 2
- 125000004191 (C1-C6) alkoxy group Chemical group 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 125000004103 aminoalkyl group Chemical group 0.000 claims description 2
- 125000004429 atom Chemical group 0.000 claims description 2
- 125000005708 carbonyloxy group Chemical group [*:2]OC([*:1])=O 0.000 claims description 2
- 239000007795 chemical reaction product Substances 0.000 claims description 2
- 125000005843 halogen group Chemical group 0.000 claims description 2
- LMBFAGIMSUYTBN-MPZNNTNKSA-N teixobactin Chemical compound C([C@H](C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H](CCC(N)=O)C(=O)N[C@H]([C@@H](C)CC)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H]1C(N[C@@H](C)C(=O)N[C@@H](C[C@@H]2NC(=N)NC2)C(=O)N[C@H](C(=O)O[C@H]1C)[C@@H](C)CC)=O)NC)C1=CC=CC=C1 LMBFAGIMSUYTBN-MPZNNTNKSA-N 0.000 claims description 2
- 125000002348 vinylic group Chemical group 0.000 claims description 2
- 125000000229 (C1-C4)alkoxy group Chemical group 0.000 claims 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims 1
- 125000004356 hydroxy functional group Chemical group O* 0.000 claims 1
- 125000001434 methanylylidene group Chemical group [H]C#[*] 0.000 claims 1
- 125000003277 amino group Chemical group 0.000 abstract description 5
- PYSRRFNXTXNWCD-UHFFFAOYSA-N 3-(2-phenylethenyl)furan-2,5-dione Chemical compound O=C1OC(=O)C(C=CC=2C=CC=CC=2)=C1 PYSRRFNXTXNWCD-UHFFFAOYSA-N 0.000 abstract 1
- 229920000147 Styrene maleic anhydride Polymers 0.000 abstract 1
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 81
- 238000000034 method Methods 0.000 description 55
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 45
- 239000000243 solution Substances 0.000 description 32
- 239000000047 product Substances 0.000 description 30
- 239000000203 mixture Substances 0.000 description 25
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 20
- 239000000376 reactant Substances 0.000 description 18
- 238000006243 chemical reaction Methods 0.000 description 17
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 13
- 238000002360 preparation method Methods 0.000 description 13
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 11
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 11
- 239000002904 solvent Substances 0.000 description 11
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 10
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 10
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 9
- 239000011521 glass Substances 0.000 description 9
- 238000003756 stirring Methods 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 8
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 8
- 239000000975 dye Substances 0.000 description 8
- 239000010408 film Substances 0.000 description 8
- 239000000178 monomer Substances 0.000 description 8
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 7
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 7
- 150000001408 amides Chemical class 0.000 description 7
- 238000001816 cooling Methods 0.000 description 7
- 239000011541 reaction mixture Substances 0.000 description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 6
- 239000002253 acid Substances 0.000 description 6
- 150000008064 anhydrides Chemical class 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- 238000004528 spin coating Methods 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Natural products C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- IJOOHPMOJXWVHK-UHFFFAOYSA-N chlorotrimethylsilane Chemical compound C[Si](C)(C)Cl IJOOHPMOJXWVHK-UHFFFAOYSA-N 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 4
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 239000005977 Ethylene Substances 0.000 description 3
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 3
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- 230000015572 biosynthetic process Effects 0.000 description 3
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- 238000004821 distillation Methods 0.000 description 3
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- 150000004702 methyl esters Chemical class 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
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- LOCWBQIWHWIRGN-UHFFFAOYSA-N 2-chloro-4-nitroaniline Chemical compound NC1=CC=C([N+]([O-])=O)C=C1Cl LOCWBQIWHWIRGN-UHFFFAOYSA-N 0.000 description 2
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- TYMLOMAKGOJONV-UHFFFAOYSA-N 4-nitroaniline Chemical compound NC1=CC=C([N+]([O-])=O)C=C1 TYMLOMAKGOJONV-UHFFFAOYSA-N 0.000 description 2
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- WQDQLOXQQUFECI-UHFFFAOYSA-N 2-nitropropanedial Chemical compound [O-][N+](=O)C(C=O)C=O WQDQLOXQQUFECI-UHFFFAOYSA-N 0.000 description 1
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- VOPWNXZWBYDODV-UHFFFAOYSA-N Chlorodifluoromethane Chemical compound FC(F)Cl VOPWNXZWBYDODV-UHFFFAOYSA-N 0.000 description 1
- 238000005698 Diels-Alder reaction Methods 0.000 description 1
- OWYWGLHRNBIFJP-UHFFFAOYSA-N Ipazine Chemical compound CCN(CC)C1=NC(Cl)=NC(NC(C)C)=N1 OWYWGLHRNBIFJP-UHFFFAOYSA-N 0.000 description 1
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 1
- AYCPARAPKDAOEN-LJQANCHMSA-N N-[(1S)-2-(dimethylamino)-1-phenylethyl]-6,6-dimethyl-3-[(2-methyl-4-thieno[3,2-d]pyrimidinyl)amino]-1,4-dihydropyrrolo[3,4-c]pyrazole-5-carboxamide Chemical compound C1([C@H](NC(=O)N2C(C=3NN=C(NC=4C=5SC=CC=5N=C(C)N=4)C=3C2)(C)C)CN(C)C)=CC=CC=C1 AYCPARAPKDAOEN-LJQANCHMSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 229960000583 acetic acid Drugs 0.000 description 1
- 150000001412 amines Chemical group 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 150000003934 aromatic aldehydes Chemical group 0.000 description 1
- DMLAVOWQYNRWNQ-UHFFFAOYSA-N azobenzene Chemical compound C1=CC=CC=C1N=NC1=CC=CC=C1 DMLAVOWQYNRWNQ-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229940045348 brown mixture Drugs 0.000 description 1
- 125000004744 butyloxycarbonyl group Chemical group 0.000 description 1
- 150000001244 carboxylic acid anhydrides Chemical class 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 150000003972 cyclic carboxylic anhydrides Chemical class 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010511 deprotection reaction Methods 0.000 description 1
- 238000006193 diazotization reaction Methods 0.000 description 1
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000000921 elemental analysis Methods 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 125000000219 ethylidene group Chemical group [H]C(=[*])C([H])([H])[H] 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- XLNFLJOWTRDNCX-UHFFFAOYSA-N methyl 2-cyano-3-phenylprop-2-enoate Chemical compound COC(=O)C(C#N)=CC1=CC=CC=C1 XLNFLJOWTRDNCX-UHFFFAOYSA-N 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- ILXYDRFJSVKZLV-UHFFFAOYSA-N oxosulfamic acid Chemical compound OS(=O)(=O)N=O ILXYDRFJSVKZLV-UHFFFAOYSA-N 0.000 description 1
- 125000006353 oxyethylene group Chemical group 0.000 description 1
- YJVFFLUZDVXJQI-UHFFFAOYSA-L palladium(ii) acetate Chemical compound [Pd+2].CC([O-])=O.CC([O-])=O YJVFFLUZDVXJQI-UHFFFAOYSA-L 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- ARJOQCYCJMAIFR-UHFFFAOYSA-N prop-2-enoyl prop-2-enoate Chemical compound C=CC(=O)OC(=O)C=C ARJOQCYCJMAIFR-UHFFFAOYSA-N 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 238000006798 ring closing metathesis reaction Methods 0.000 description 1
- 150000003839 salts Chemical group 0.000 description 1
- 125000000467 secondary amino group Chemical group [H]N([*:1])[*:2] 0.000 description 1
- 229920006114 semi-crystalline semi-aromatic polyamide Polymers 0.000 description 1
- 239000008149 soap solution Substances 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002195 soluble material Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical compound NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- NLDYACGHTUPAQU-UHFFFAOYSA-N tetracyanoethylene Chemical group N#CC(C#N)=C(C#N)C#N NLDYACGHTUPAQU-UHFFFAOYSA-N 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 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
- 238000001291 vacuum drying Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/30—Introducing nitrogen atoms or nitrogen-containing groups
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B69/00—Dyes not provided for by a single group of this subclass
- C09B69/10—Polymeric dyes; Reaction products of dyes with monomers or with macromolecular compounds
-
- 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
- G02F1/35—Non-linear optics
- G02F1/355—Non-linear optics characterised by the materials used
- G02F1/361—Organic materials
- G02F1/3615—Organic materials containing polymers
- G02F1/3617—Organic materials containing polymers having the non-linear optical group in a side chain
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
A polymer having non-linear optical properties, comprising a polymeric backbone a) (hereinafter defined as polymer backbone a) and at least one chromophore b) (hereinafter defined as chromophore b) attached thereto by means of a bridging moiety (hereinafter defined as bridging group c); so constituted that the chain of linking atoms (hereinafter defined as chain d) thereof does not contain an ester linkage. The polymeric backbone (a) is e.g. styrene-maleic anhydride, and the chromophore (b) may have an amino group.
Description
COMPOUNDS WITH NON-LINEAR OPTICAL PROPERTIES
The invention relates to linear polymeric products having an imide-, isoimide- or amide-bound chromophore with non-linear optical properties, to their preparation and to their use, in particular for integrated optical electrooptical, photorefractive or holographic devices, such as modulators, switches, directional couplers, amplifiers, wave guides and sensors, as well as frequency convertors, especially for frequency doubling.
According to the invention, there is provided a polymer having non-linear optical properties, comprising a polymeric backbone a) (hereinafter defined as polymer backbone a) and at least one chromophore b) (hereinafter defined as chromophore b) attached thereto by means of a bridging moiety (hereinafter defined as bridging group c); so constituted that the chain of linking atoms (hereinafter defined as chain d) thereof does not contain an ester linkage.
Preferably the chain d) does not contain a urea group (-NH-CO-NH-).
Preferably the bridging group c) contains an amide, isoimide or imide group, provided the chain d) does not contain an ester-amide group.
Preferably the bridging group c) contains an amino alkyl imido grouping, the amino being bound to the chromophore and the imido group being bound to the polymer chain.
Preferably the glass transition temperature (Tg) of a polymer according to the invention is from 120-250"C, more preferably 135-210 C.
Preferably the basis polymer for forming the polymer backbone a) (hereinafter defined as the "basis" polymer) is a homo-, co- or ter-polymer derived from monomeric compounds having one or more groups capable ofcondensation and/or polymerization.
Such monomeric compounds are preferably selected from aliphatic or cyclic anhydrides or imides, for example, maleic anhydride, maleic acid imide, methacrylic acid anhydride, itaconic acid anhydride or a citraconic acid anhydride which, if copolymers form, react with vinylic compounds such as thiophene, dihydrofurane, dihydropyrane, cyclohexene, indole and N-alkylindole compounds of the formula
in which
R10, is selected from hydrogen, chloro and C1-6alkyl; and
R10a is selected from hydrogen, chloro, C1-6 alkyl, phenyl, C1-6alkoxy, C1-5alkyl
carbonyloxy, C1-5alkoxy-methyl, C1-5alkylcarbonylmethyl, C1-4alkyloxy-carbonyl
and a group of formulae a) to f)
where R11 is hydrogen or C1.6alkyl; each R12 independently is hydrogen or methyl;
R13 is a bridging group, preferably selected from -0-, -S-, -SO2-, -CH2
O-, -CH2-O-CH2-, -CO-, -[C(R14)2]- or -[Si(R14)2]- where each 14
independently is selected from hydrogen, methyl and C6cycloalkyl or both groups R14 form an omega C4-6cycloalkylene group; R15 is -CH2-; each R16 and R17 independently is selected from hydrogen, -CH=CH2, -CH=CHCH3
-C(CH3)=CH2, -CHO or -COCH3; or both groups R16 together form a group =CH2 or =CH-CH3 and both groups R17 are
hydrogen;
or one group R16 and one group R17 form a bridge of the formula
CH2-CH=CH- or -CO-O-CO- and the other group R16 and the other
group R17 are hydrogen;
R18 is hydroxy, carboxy, formyl or a group of the formula
where R19 is hydrogen, methyl, ethyl or cyano; and R20 is hydrogen, hydroxy
or Cl4alkoxy; each Rl8a is hydrogen, fluoro or chloro; and each R2l independently is halogen, preferably chloro or bromo or C1-4alkyl
and R22 is vinyl or alkyl.
Preferred basis polymers are the reaction products of i) an aliphatic or cyclic anhydride or imide, preferably maleic anhydride, maleic
acid imide, methacrylic acid anhydride, itaconic acid anhydride or citraconic acid
anhydride (hereinafter component i); with ii) a compound selected from thiophene, 2,3- or 3,4 dihydrofurane,2,3-dihydropyrane, cyclohexene, indene, indole, N-C1.4alkylindole and a compound of formula I to V
defined above (hereinafter component ii).
Preferably the ratio of component i) to component ii) is 10:1 to 1:10, preferably 1:1 except when component i) is a cyclic anhydride and component ii) is a compound of formula II in which case the ratio is 3:1 to 1:1 preferably 2:1.
The basis polymers for forming the polymer backbone a) are known or may be prepared by known methods from known compounds. Such known methods are those described in G. Sackmann: "Polymerisation von ungesättigten Polyearbonsäuren und ihren Derivativen": in the book "Methoden der organischen Chemie", Houben-Weyl, 4th. Ed., Vol. E 20/3, p.1234, EP 324 547 and "Synthesis and polymerization of N (tert.butyloxy carbonyl)-maleimide and facile deprotection of polymer side chaining
A-BOC groups in Polymer, 1992 vol. 33, Nr. 22, p. 4851-4856, Kwong-Duk Ahn et al: the contents of these two references are incorporated herein by reference. Examples 1-15 also illustrate how the basis polymer can be prepared. The basis polymers that are not known can easily be made by a man skilled in the art by analogous methods to those above.
The chromophores b) with non-linear optical properties are bearing groups able for reacting with the acid derivatives (for example, an anhydride or acid chloride,for forming an imide, isoimide or amide) of the basis polymers are of formula XI-XV
in which
R1 is hydrogen, halogen, carboxyl, cyano or rho dan; R2 is hydrogen, halogen, cyano, carbonyl or nitro;
R3 is hydrogen, methyl, ethyl, methoxy, ethoxy, amino-Cl.2alkyl or C1-2alkylcarbonyl
amino;
R3a is hydrogen, methyl, ethyl, methoxy or ethoxy
R4 is hydrogen, methoxy or ethoxy;
R4a is hydrogen, methoxy or ethoxy;
R5 is a group of the formula-NH2, -N(R8)-(CH2)n-NH2;
and when R3 is C1.2alkyl amino, R5 may additionally be di(C1-4alkyl) amino;;
R6 is cynao, nitro, C1.2alkylsulphonyl, aminosulphonyl, dicyanovinyl, tricyanovinyl, di(C1.4alkoxycarbonyl) vinyl of a group of the formula -C(C1.4-alkyl)=C(CN)2, -CH=CH-NO2, -CH=C(CN)-CO-O-C1-4alkyl, or
R7 is hydrogen or nitro;
R8 is hydrogen, C1-4alkyl, benzyl or C1-2alkoxycarbonyloxy-C2-3alkyl; A1 is a direct bond, -CH=CH-, -N=CH- or -CH=N-;
A2 is -S- or -O-;
R30 is a group of the formula a), b) or c)
where R3l is tricyanovinyl, -NO2, -CHO, -CH=C(CN)2, -CH=CH-NO2, -CH=C(CN)
(COOC1-4alkyl)2 or CH=C(COOC1-4alkyl)2
R32 is hydrogen, chloro, C1.4alkyl or phenyl;
Y1 is nitro, formyl, cyano, C1.2alkylsulphonyl, tricyanovinyl or dicyanovinyl; ; -Zl= is -N=, =CH- or =C(NO2)-; -Z2= is =N-, =CH- or =C(NO2)-; p is 0, 1 or 2; and n is 0 or 1 to 9
Preferably any halogen in this specification is C1 or Br, more preferably Cl.
Preferably R1 is R1' in which R1' is hydrogen, chloro or bromo.
Preferably R2 is R2' where R2' is hydrogen, chloro, bromo, cyano or nitro;
Preferably R3 is R3' where R3, is hydrogen, methyl or C1-2alkylcarbonylamino.
Preferably R3a is R3a' where R3a' is hydrogen or methyl.
Preferably R4 is R4, where R4, is hydrogen, methoxy or ethoxy.
Preferably R4a is hydrogen.
Preferably R5 is (N-C 1-2alkyl-N-γamino-C2-3alkylene)-amino, (N-benzyl-N- yaminopropyl)-amino or N-piperazyl.
Preferably R6 is R6, where R6, is cyano, nitro, dicyanovinyl or C1.2alkylsulphonyl.
Preferably R7 is nitro
Preferably n is n' where n' is 1,2 or 3, more preferably n" where n" is 2 or 3.
Preferably p is p' where p' is O or 1, more preferably 0.
Preferably A2 is -S-.
Preferably R30 is Rso' where R30' is
Preferably R3l is R31' where R31' is dicyanovinyl, tricyanovinyl, formyl or di-(C 2alkoxycarbonyl)vinyl.
Preferably R32 is R32, where R32' is hydrogen, methyl, chloro or phenyl.
Preferably Y1 is Y1' where Y1' is nitro or cyano.
Chromophores with non-linear optical properties are known or can be prepared from known compounds by known methods.
The compounds according to the invention can be prepared by reacting monomers having one or more polymerizable groups and/or groups capable of undergoing condensation reactions with a chromophore-bearing compound having one or more groups capable of condensation or addition.
Preferably the monomers, for producing homo- or copolymers (optionally also terpolymers) of the basis polymers contain one or two (preferably one) polymerizable groups and one group capable of condensation with the chromophore-bearing compound. Examples of such compounds are aliphatic and cyclic anhydrides and optionally amides, which when used to form as a copolymer are preferably the products of component ii defined above.
Chromophore-bearing compounds for reaction with the above mentioned polymers, preferably are compounds of formula XI to XV containing amino groups, which may be in salt form (e.g. hydrochloride, hydrosulphate or sulphate) or may also contain a protected amine group. These chromophore-bearing compounds react with the groups capable of condensing with the above mentioned polymer a) (or monomers used to form the polymers) by forming an amide or an isoimide and/or then finally cyclising to form the imide.
Groups in the basis polymer (or monomers that form the basis polymers) that can form an amide, isoimide or imide by condensation are preferably functional carboxylic acid derivatives especially carboxylic acid anhydrides and (less preferably) carboxylic acid halides. The reaction conditions to carry out such reactions are known to a man skilled in the art.
Homopolymers of basis polymers can be prepared from monomers containing a number of groups suitable for condensation and/or polymerization. Preferably however, there is one group capable of condensation and one group capable of polymerization in each monomer. Homopolymers of polymer backbone a) preferably contain residues from acrylic acid anhydride, methacrylic acid anhydride, citraconic acid anhydride or itaconic acid anhydride.
There is a description, in some of the following Examples, of the reaction of polymerbound cyclic carboxylic anhydrides with an appropriate chromophore-bearing compound having an amino group present (e.g. compounds of formula XI to XV) followed by cyclization (by splitting off water) using cyclization agents (e.g. acetic acid anhydride). Alternative methods are described - for example from Tetrahedron Lett.
32, 3449 (1991) by J.A. Moore et al and EP 324547. In the alternative, amides with free carboxylic acid groups (e.g. the isoimides) are described in Polymer Preprints 26 (1985) p.287-8 in an article by F.W. Harris et al "Polyimides containing oxyethylene units III. Isoimide Precursor to semicrystalline Polyamides". These products can be reacted further by known methods to give compounds according to the invention.
Preferred chromophore-bearing compounds are those containing a secondary amino group, especially a free piperazyl group. These result in amide acids, (see Examples 118-112, 127 and 128 below) having a free carboxylic acid group per chromophore group.
The polymers with non-linear optical properties according to the invention can also be prepared by reacting a polymeric cyclic carboxylic acid anhydride with isocyanate containing chromophore bearing compounds. Such a process is analagous to that described in J. Polymer Science, Part Al, 7(1969) p. 2757 by R.A. Meyers et al). The intermediate 7-membered ring structures also form a part of the present invention.
Polymers according to the invention can also be prepared by radical copolymerization of chromophore-bearing maleic acid imide (from maleic acid anhydride and a chromophore bearing an amino group) with a vinyl compound (for example component ii defined above).
Furthermore, compounds according to the invention can be prepared by reacting polymer-bound cyclic carboxylic acid imide (especially maleic acid imide) with a chromophore containing a primary hydroxy group (for example by the "Mitsunobu" reaction described in Angew. Chemie 103, (1991 p. 106-108 by I Cabrera et al).
Polymers according to the invention with a dicyanovinyl or dicyanovinyl ester group present can be prepared by the reaction of a chromophore-bearing polymer with an aromatic aldehyde group (e.g. malonic acid dinitrile or cyanomalonic acid esters).
Such procedures are described in "Organikum" Organisch Chemisches
Grundpraktikum, 15th Edition, VEB, Deutscher Verlag der Wissenschaften, Berlin 1977 p. 571 et seq.
The compounds of the invention also include polymers in which not every recurring unit has a chromophore group b) present.
However, it is preferred that the number of chromophores with non-linear optical properties present is as high as possible which however is kinetically difficult to achieve. Usually the maximum chromophore content is about 98% (as evidenced by
Example 122) except where the chromophore is reacted with the polymerizable monomer prior to polymerization.
The molecular weight of basis polymers (without the chromophore present) of the polymers according to the invention is from 2x103 to 5x106, more preferably 1x104 to 3x105.
The molecular weight of such basis polymers can be regulated by known methods to a man skilled in the art, for example by regulating initiator concentration, (e.g.
azoiosbutyronitrile), the monomer concentration and/or the reaction temperature.
The molecular weight of the basis polymers can also be controlled by known methods using regulators (e.g. a mercaptan).
Polymers according to the invention are primarily used in the form of thin films, for the formation of layers in optical or electrooptical parts in order to produce non-linear optical effects, for example for use as modulators, electrooptical switches, for changing frequency (such as frequency doubling).
The polymers show very good solublility in solvents and are easily workable (for instance, spin coating or dip coating). The glass transition temperature (Tg) of copolymers according to the invention is high, and their long term stability and their high non-linear coefficients for electrooptical and non-linear optical effects are worthy of note. Films made with polymers according to the invention show good wave guiding properties (with little damping).
Compared to compounds known to for similar use, the compounds according to the invention have the following advantages, high molecular weight (up to 5x106), good solubility in organic solvents, good workability and a relatively simple synthesis.
Especially to be noted is that the compounds according to the invention have a high glass transition temperature with high non-linearity, especially for compounds containing group derived from compounds of formula IV.
Further, films made using one or more polymers according to the invention, have good wave guide properties for laser light of differing wavelengths. Of special preference are wave guides made out of three layers, in which the uppermost and lowermost layers have lower breaking indices than those of the middle layer and that the glass transition temperature Tg of the uppermost and lowermost layers is greater than or at least the same as that of the middle layer.
Further according to the invention, there is provided an optical device comprising a) a top buffer being a layer of polymer a) as defined above containing no non-linear
optical (NLO) chromophore, a minor amount (e.g. from 1-10%) of NLO
chromophore or non-NLO chromophore; b) a main layer being a layer of a polymer according to the invention (i.e. containing
10-100% NLO chromophore); and c) a bottom buffer, being a layer of polymer a) containing no NLO chromophore, a
minor amount of NLO chromophore (e.g. from l-lOSo) or non-NLO chromophore.
Preferred non-non-linear optical chromophores (non-NLO chromophores are those of formula VI and VII
in which A2, R3, R4 and R5 are defined above, each R40 independently is selected from hydrogen, fluoro, chloro, bromo, methyl and methoxy; and each R4l independently is selected from hydrogen, chloro, bromo, amino, mono- or di C1.4alkylamino Cl.4alkoxy and hydroxy.
Examples 109-114 describe such chromophores.
The invention will now be illustrated by the following Examples.
Unless indicated to the contrary all parts are by weight and all temperatures are in C.
Examples 1-6 relate to the preparation of polymer backbone a);
Examples 7-12 relate to the preparation of multifunctional compounds of component ii); Examples 17-114 related to the preparation of chromophore;
Examples 115-204 relate to the preparation of polymers according to the invention; and
Examples 205-211 are applications examples.
Tg = glass transition temperature
Examples a) Production of polymer chains a
Example 1
Poly-(styrene co maleic acid anhydride) is produced as follows. 10.4g (0.lmol) of styrene, 9.8g (0.1 mole) of maleic acid anhydride, 300 ml of benzene and 0.1 g (0.4 mmole) of benzoyl peroxide are added to a vessel and are stirred at room temperature until a clear solution results. Whilst stirring, the mixture is heated to boiling. The copolymer results. after 1 hour the mixture is allowed to cool and the solid polymer is separated out and dried under vacuum. This is the method described in "Praktikum der Makromolekularen Organischen Chemie", 2nd edition, page 220, by
D. Braun, H. Cherdron, W. Kern and Dr. A. Hüthig Verlag, Heidelberg 1971.In this method, toluene at 70"C, or benzene is used as the solvent and azo-bisisobutyronitrile or benzoyl peroxide as initiator.
Extremely high molecular weight poly(styrene-co-maleic acid anyhdride) can be prepared according to the method of G. Sackmann in Houben-Weyl, Methoden der
Organischen Chemie E20, Part 3, 4th Edition p. 1243 et seq. H. Bartel, J. Falbe (ed.)
G. Thieme Verlag.
Example 2
Poly-(ethylene co maleic anhydride) is produced by the method of G. Sackmann in
Houben-Weyl, Methoden der organischen Chemie, E20, Part 3,4th edition, page 1242 et seq., by H. Bartel, J. Falbe (Eds.), G. Thieme Verlag. Toluene is used as the solvent and azo-bis-isobutyronitrile as initiator.
Analogously to the above, from appropriate reactants, poly(propen-co-maleic acid anhydride) and poly(isobutene-co-maleic acid anhydride can be produced. Similarly, poly (a-methylstyrene-co-maleic acid anhydride) and poly(norbornadiene-co-maleic acid anhydride can be prepared.
Example 3
Poly-(ethyl vinyl ether co maleic anhydride)
A solution of 14.71 g of maleic anhydride, 14.4 ml of ethyl vinyl ether and 123 mg of azoisobutyronitrile in 200 ml of toluene is rinsed with nitrogen for 5 minutes and the solution subsequently stirred for 1 hour at 60". The copolymer precipitated during the reaction is filtered off, washed with 200 ml of toluene and dried at 50 /25 torr.
Example 4
Poly-(furan co maleic acid anhydride) is produced according the method described in
J. Polym. Sci., Polym. Chem. Ed., 16, 1527 (1978) by N.G. Gaylord, M. Martan, A.B.
Deshpande.
According to this process, the Diels-Alder product resulting from furane and maleic acid anhydride can be polymerized. Maleic anhydride and furance are reacted together in the presence of azobisisobutyronitrile. The product is prepared in anhydrous diethyl ether at 35"C and recrystallized from ethyl acetate.
Example 5
Poly-(divinyl sulphone co maleic acid anhydride) is produced according to the method of J. Macromol. Sci. Chem., A5, 219 (1971) by G.B. Butler,
Example 6
Poly-(methacrylic acid anhydride) is produced according to the method of J. Am.
Chem. Soc., 80, 5464 (1958) by A. Crawshaw, G.B. Butler,
Example 7
The preparation of a compound of the formula
can be prepared according to the process given of Makromol. Chem. 189, 119-127 (1988) by W. Heitz et al from m-bromobenzylaldehyde and ethylene. The melting point of the product is 121"C/28 mbar.
Example 8
The preparation of a compound of the formula
can be prepared by the Knoevenagel reaction of m-bromobenzylaldehyde and malonic acid. The method is described in Autorenkollektiv, Organikum, Organisch
Chemisches Praktikum, VEB Deutsches Verlag der Wissenschaften, Berlin 1977, p.
572 Variante B. The melting point is 1800C.
Example 9
The preparation of a compound of the formula
can be prepared as follows:
A reaction mixture of 63.7 g of m-bromocinnamic acid, 1.75g of tri-o-tolyl phosphine and 0.63g of palladium acetate in 280 ml of acetonitrile and 220 ml of triethylamine is placed in an autoclave and is sparged with nitrogen for 2 minutes and then pressurized to 15 bar ethylene at room temperature. With a heating rate of 2"C per minute, the temperature is brought to 125"C and is held at this temperature for 20 hours. The pressure rises to 35 bar. The reaction mixture is allowed to cool to room temperature and the filtered product is poured with a mixture of 165 ml of concentrated hydrochloric acid and 450 ml of ice-water.The resultant brown mixture is extracted three times with 400 ml of diethylether (400ml per extraction) and the combined ether phasee are filtered and extracted with two times 300mls of 20% sodium carbonate solution. The aqueous phase is slowly added to a mixture of 260ml of concentrated hydrochloric acid and 500 ml of ice-water. The resulting white product is filtered off and dried under vacuum at room temperature. Mp 152-155"C.
Example 10
A product of the formula
can be prepared as follows: m-vinylcinnamic acid (a known compound) can be prepared by reaction with thionylchloride followed by esterification with methanol by known method (for example in "Autorenkollektiv, Organikum, Organicsch
Chemisches Praktikum, VEB Deutsches Verlag der Wissenschaften, Berlin 1977 p.
505 et seq.). Rf (Kieselguhr/toluene) = 0.41.
Example 11
A product of the formula
can be prepared as follows. M-vinyl-a-cyano-cinnamic acid methyl ester can be produced by the Knoevenagel reaction from m-vinylbenzaldehyde and cyanoacetic acid methyl ester according to the method of "Autorenkollektiv, Organikum,
Organisch-Chemisches Praktikum, VEB Deutsches Verlag der Wissenschaften, Berlin 1977 p. 572, Variante A) as follows:
A mixture of 61g of m-vinylbenzaldehyde, 41 ml of cyanoacetic acid methyl ester, 4.1g of aniline, 0.5 g of hydroquinone and 5.3 ml of glacial acetic acid are mixed in 250 ml of toluene in a water distillation apparatus under reflux until no further water is removed (about 1.5 hours). After cooling, the product is extracted with 3 times 350 mls of about 4% sodium carbonate solution and once with 400 ml of water.The organic phase is diluted with 400 ml of methylene chloride and is dried over sodium sulphate. After distilling off the solvent, the product is recrystallized from toluene/hexane Rf (Kieselguhr/toluene) = 0.43
IR (KBr): 2225 cm~l, m, CN; 1724 cm~l, S, methylester; 1608 cm~l, C=C
Example 12
A compound of the formula
can be prepared as follows. N-allyl-2,3-dimethyl maleic amide can be prepared from 2,3-dimethylmaleic acid anhydride and allylamine according to the process of D.O.S.
2,934,550 (Ciba Geigy) b.p. = 98 C/lmbar.
Example 13
Poly(maleic acid anhydride co-allyl-2,3-dimethyl maleic imide) can be prepared from a solution of 30.79g of allyl-2,3-dimethylamaleic imide, 17.36 g of maleic acid anhydride and 581 mg of azo-bisisobutyronitrile in 40ml of toluene. This is sparged with oxygen-free nitrogen for 5 minutes followed by tempering in a gas-sealed flask for 24 hours at 70"C. The reaction mixture is then diluted with 120 ml of tetrahydrofurane and is slowly added, dropwise while stirring well, to 1.9 1 of methanol. The resultant copolymer is filtered over a glass frit and dried until a constant weight results.
IR (KB+): 1701 cm~l, s, C=O maleicimide; 1784 cm~l, s, 1860 cool, w, C=O anhydride.
Elemental analysis C: 58.2% H: 5.2% N: 5.3% 0: 31.3%.
Example 14
Poly(maleic acid anhydlide-co-m-vinyl- a- cyano-cinnamic acid methylester)
A filtered solution of ig of m-vinyl-a-cyano-cinnamic acid methylester, 460 mg of maleic acid anhydride and 15.5 mg of azo-bis-isobutyronitrile in 15ml of toluene is sparged for 3 minutes in oxygen-free nitrogen and sintered in a gas-sealed flask for 17 hours at 60 C. The resulting copolymer is filtered over a glass frit, washed with toluene and dried until a constant weight results. Parameters of the product are:
U.V. (CH2Cl2): 302 nm, cyanocinnamic acid methylester
IR(KBr) 2225 cm~l, w, CN, 1782, s, 1859 cm-l, w, C=O anhydride; 1733 cm-l, C=O.
Methylester; 1610 cm-1, m, C=C.
In a method analogous to that of Example 14, from appropriate reactants, poly(mvinylcinnamic acid methyl ester-CO-maleic acid anhydride can be prepared.
IR (KBr): 1781, s, 1859 cm~l, w, C=O anhydride; 1717 cm-1 0=0 methylester; 1639 cm1, m, C=C.
Poly-(m-vinylcinnamic acid-co-citraconic acid anhydride) and poly(m-vinylcinnamic acid-co-itaconic acid anhydride) can be made from appropriate reactants analogously to the method of Example 14.
Example 15
Poly(m-formyl styrene-co-maleic acid anhydride) can be prepared from appropriate reactants analogously to the method of Example 1. The product is dissolved in dimethyl formamide and precipitates out in methanol. The product has the following parameters.
IR (KBR): 1858 cm~l, w, 1780 cm~l, s, C=O anhydride; 1699 cm-1, s, CHO.
Example 16 p-hydroxy styrene is prepared by the method of Example 5 of D.O.S. 2,248,525. The melting point is 69-71 C.
Poly(p-hydroxystyrene-co-maleic acid anhydride) is made analogously to the method of Example 1 from appropriate reactants. The solvent used is 1:1 mixture of toluene/acetone and the copolymer is precipitated out in diethylether.
The product has the following parameters:
IR (KBR): 3447 cm~l, b, OH, 1856 cm-l, m, 1772 cm-1, s, C=O anhydride.
Preparation of Chromophores
Example 17
The preparation of 4-ni tro-4'- (N-ethyl-N- amino ethyl)-1,1' azobenzene hydrochloride can be carried out as follows: a) Preparation of N-ethyl-N-cyanomethylaniline
A mixture of 1051 g of N-ethyl aniline, 1060 ml of dimethylformamide, 206g of magnesium oxide and 22.5 g ofpotassium iodide are placed in a 10 liter sulphonating vessel. This is heated to 100"C and 569 mls of chloroacetonitrile is added dropwise over 90 minutes. This is stirred for 2 hours at 120"C and then 340 ml of acetic acid anhydride is added at 100"C whereby a brown solution results.After 30 minutes, 3200 of toluene and 3200 mls of water are added at 75"C and after cooling the reaction mixture is poured into a separating funnel. The aqueous phase is separated off and is extracted twice with 500 ml of toulene. The combined organic phase is then washed with 500 ml of water, dried overnight over magnesium sulphate and the solvent is then removed with a rotary evaporator. 1485g of product results as a brown oil, that can be used as such further.
b) N-ethyl-N-(ss-aminoethyl)aniline can be prepared as follows:
A mixture of 3000 ml of isopropanol, 350 ml of liquid ammonia, 742 g of N-ethyl-Ncyanomethyl aniline as well as 74g of a nickel catalyst H 1-50, commercially available from BASF. This mixture is hydrated at 90"C and 10 bars pressure for 2.5 hours.
The amount of hydrogen used is 190 liters. A light brown solution results, that is concentrated at 50"C and 500 mbar (initially followed by 20 mbar) in a rotary evaporator. 730 g of a light brown oil result. Distillation is carried out at 96-98"C and 0.02 mbar. 587 g (84.1% of theory) of the product results as a colorless fluid.
c) Coupling with 4-nitroaniline 1650 ml of water, 528 g of a 30% solution of hydrochloric acid and 174 g of 4nitroaniline (95.5%) are stirred in a 3 liter sulphonating vessel for 2 hours at room temperature. By cooling from outside and by the addition of 200g of ice, the reaction mixture is cooled to 0 C. 250 ml of a 33% sodium nitrite solution is added stirred for 2 hours at 0-5"C. Excess nitrite is then destroyed by the addition of amidosulfonic acid and the product is filtered through a glass funnel G1.
The filtrate is placed in a 10 liter sulphonating vessel at 0 C and a solution of 205.3g of N-ethyl-N-(ss-aminoethyl)aniline and 300g of water (together with the dropwise addition of a 30% hydrochloric acid solution to give a pH value of 1) is added at 0 C.
This is stirred for 2 hours at 0 C and then is warmed to room temperature overnight.
2 liters of water are then added and the pH is brought to 2 through the addition of 30% sodium hydroxide, whereby a thick precipitater results. After stirring for 2 hours, the product is filtered with a glass filter G3 under vacuum, the product is dried at 80"C and 500g of a red dyestuff results.
To purify the product, it is heated to 100"C in 200 ml of dimethylformamide and the undissolved parts are filtered off. The warm filtrate is reacted with 4000 ml of chloroform and the product is allowed to crystallize out. 258 g of a dyestuff (in hydrochloride form) of the formula
Rf value 0.43 results. Thin layer chromatrography is carried out with films of POLYGRAM SIL
G/UV 254 (from Machery-Nagel). The solvent is a mixture of 50 parts toluene, 20 parts of ethanol, 10 parts of triethylamine, 10 parts of dioxane and 2.5 parts of water.
Example 18 a) Production of 2-chioro-4-nitro-4'-(N-methyl-N-Y-aminopropyl)- 1,1'- azobenzene is
carried out as follows:
A mixture of 4300 ml of isopropanol, 185 ml of liquid ammonia, 494 g of
N-methyl-N-cyanoethyl-aniline and 50 g of nickel catalyst H1-50 from BASF is placed in a 5 1 steel autoclave. The mixture is hydrogenated for 2 hours at 90 and at 5 bars pressure. The hydrogen consumption here is 141 1. After filtering off the catalyst, the light brown solution is concentrated in a rotary evaporator at 45" and at 135 mbar, whereby 656.6 g of a light brown oil are obtained. Distillation at 83" and 0.015 mbar yields 479.4 g (94.7% of theory) of N-methyl-N-(-T-aminopropyl)- aniline in the form of a colorless liquid.
b) Coupling with 2-chloro-4-nitroaniline 170 g of a 95% sulphuric acid are added dropwise whilst stirring to 270 ml of ice water in a 1.5 1 sulphonation flask. 96 g of 2-chloro-4-nitroaniline are added at room temperature,and stirring is effected for ca. 1 hour. The mixture is cooled to 0 , 113 g of a 33% sodium nitrite solution are added, and stirring is effected for 3 hours.
Subsequently, the excess nitrite is broken down with amidosulphonic acid.
89 g of N-methyl-N-(T-aminopropyl)-aniline (from part a) above) in 200 ml of DMF are placed in a 3.5 1 sulphonation flask at 00. The yellow-brown diazonium salt suspension is added over the course of ca. 1-2 hours using a compression pump with hose, whereby by simultaneously adding in dropwise a 30% sodium hydroxide solution, a pH value of 1.5 is maintained, and the temperature of the reaction mixture is held at constant 0-5". Stirring is effected for 3 hours, then the pH value is set at ca. 5, filtering is effected for a further 2 hours, and the product is dried in a vacuum at ca. 60-809, thus producing ca. 178 g of a red dyestuff.
The dyestuff is purified by suspending in ca. 3-4 times 2 1 of toluene in a 3.5 1 sulphonation flask, respectively heating at reflux for 2 hours, and then filtering. The product is subsequently stirred at room temperature with a mixture of 2 1 of methanol and 200 ml of a 10% solution of sodium hydroxide, is then filtered off and dried in a vacuum at ca. 60". Ca. 149 g of the dyestuff of the formula
result. Rf value 0.31. Thin layer chromatography can be carried out as in Example 17.
Examples 19-56
Compounds of the formula
in which the symbols are as defined in Table 1 below can be prepared from suitable reactants analogously to the method of Example 17 (ammonium salt form) or 18 (free amine form) above.
TABLE 1
Ex. R1 R2 R3 R6 n R8 Rf Nr.
19 H H H NO2 2 -CH3 0.35*(a) 20 H H H do 3 do 0.31*(a) 21 Cl Cl H do 3 do 0.34*(a) 22 H -CN H do 3 do 0.26*(a) 23 Br -NO2 H do 3 do 0.29*(a)
Ex. R1 R2 R3 R6 n R8 Rf Nr.
24 H H -CH3 do 3 -C2H5 0.38*(a) 25 H Cl do do 3 do 0.37*(a) 26 Cl Cl do do 3 do 0.39*(a) 27 H -CN do do 3 do 0.31*(a) 28 Br -NO2 do do 3 do 0.32*(a) 29 H C1 do do 3 -CH2C6Hó 0.49*(a) 30 -NO2 H do do 3 -C2H5 31 do H H do 3 -CH3 32 do Cl -CH3 do 3 -C2H5 33 H H H do 3 -CH2C6H5 34 H Cl H do 3 do 35 Cl Cl H do 3 do 36 H -CN H do 3 do 37 H Cl H do 2 -C2H5 38 H Cl -CH3 -NO2 2 -C2H5 39 H -CN H do 2 do 40 H H H -CH=C(CN)2 2 do 0.51(b) 41 H H H -CH=C(CN)2 2 -CH3 42 H -NO2 H -NO2 3 -CH2C6H5 43 H H -CH3 do 3 do 44 H -CN do do 3 do 45 H -NO2 do do 3 do 46 Br do do do 3 do 47 H H do -CN 3 -C2H5 48 H H do do 3 -CH2C6H5 49 H H do -SO2CH3 3 -C2H5 50 H H do -CH=C(CN)2 3 do 0.42(b)
| Ex. Rl R2 R3 l R6 n R8 Rf Nr.
J 51 51 H H H do 3 -OH3 52 H H H do 3 -CH2C6H, 11 53 H H -OH3 do 3 do 54 H H do 3 -C2H5 -K COO2R5 55 H H do 3 do 0.17(b) - coot, 56 H H do -S02NH2 3 do Rf values are measured by the same thin layer chromatography method as in
Example 17 to give results a). Results b) are obtained the same way except that the solvent used is 30 parts of chloroform and 10 parts of methnol.
Examples 57-70
Compounds of the formula
in which R3' is hydrogen in Examples 57-60 and 63-70 and in Examples 61 and 62
R3, is -CH3 and the other symbols are as defined in Table 2 below, can be made from appropriate reactants by a method analogous to that of Example 17 or 18. R3' is always hydrogen, except in Example 62, where it is methyl.
TABLE 2
Ex R1 R2 R3 R5 R6 Rf Nr.
57 H H H n-piperazyl -NO2 0.36 58 -CN H H do do 0.34 59 | -COOH | H | H | do | do | 0.03 60 Cl H H do do 61 H H H -N(c2Hó)-(cH2)2-NHn -N=N- -NO2 0.40 62 -H H H -N(C2H5)-(CH2)3-NH2 do 0.29 63 H H H -N(C2H5)-(CH2)3NH2 -NO2 64 H H -CH3 -N(CH3)(CH2)3NH2 do 65 H H H -N(CH3)(OH2)3NH2 -SO2CH3 66 CN H H -NH2 -NO2 0.79 67 H H H -N(C2H5)-(CH2)3NH2 -CH=CH-NO2 68 H H CH3 -N(C2H5)-(CH2)3NH2 do
Ex R1 R2 R3 R5 R6 Rf Nr.
69 H H CH3 -N(C2H5)-(CH2)3NH2 -C(CN)=C(CN)2 70 H H H -N(O2H5)(OH2)3NH2 do Rf values are measured according to the thin layer chromotography method of
Example 17.
Example 71
The preparation of 5-nitro-2-piperazine-pyrimidine is carried out as follows:
A mixture of 1000 ml of water, 5.47g of thiourea, 6.2g of piperazine and 10 g of the sodium salt of nitromalonaldehyde (prepared according to Organic Synthesis, Coll,
Vol IV p.844) is heated to 79 C in a 2.61 sulphonating vessel. It is stirred for 15 minutes at this temperature. The mixture is allowed to cool and is concentrated in a rotary evaporator under vacuum until crystallization occurs. It is allowed to stand overnight, is filtered and dried under vacuum. 2.3g of product result. The Rf value is 0.69 measured on a thin layer chromatograph having a film of POLYGRAM SIL
G/UV 254 and using a solvent of 30 parts methylethylketone, 10 parts of diethylamine and 12 parts of a 25% ammonia solution.
Examples 72-79
Compounds of the formula
in which the symbols are defined in Table 3 below can be prepared from soluble materials by known methods. Rf values are measured according to the method of
Example 71.
TABLE 3
Ex Nr. | Y1 | Z1 | Z2 | Rf 72 -NO2 -CH= -CH= 0.68 73 do do -N= 0.68 74 -CHO do do 75 -CH=C(CN)2 do do 76 -NO2 -C(NO2)= -CH= 77 -CN -CH= -N= 78 -SO2-CH2 -CH= -N= 79 -SO2-NH2 -CH= -N= Example 79a
The compound 79a below can be prepared by the following (schematically shown) conventional method.
Examples 80-84
Compounds (i.e. chromophores) of the formula
in which the symbols are shown in Table 4 below can be made from appropriate reactants by a method analogous to that of Example 17 or 18.
TABLE 4
Ex. Nr. A2 R3 R5 Rf value 80 -S- -CH3 H5C2-N-(CH2)3-NH2 0.21 81 -S- H N-piperazyl 82 -S- -OH3 H5C-N-(CH2)3-NH2 83 -O- do do 84 -S- H H5C2-N-(CH2)3-NH2 Rf values are measured according to the thin layer chromotography method of
Example 17.
Example 85 158g of sulfuric acid (98%) are placed in a 0.5 1 sulphonating vessel with stirrer, thermometer and external cooling. 31. 5g of 2-amino-4-chloro-5-dicyanovinyl-thoiazole (prepared from 2-amino-4-chloro-5-formyl thioazole and malonic acid dinitrile analogously to Example 101 c) of DOS 31 08 077) are added, while stirring well over 30 minutes at 0-5 C. At a temperature of 0-3 C, 48g of a 40% solution of nitrosylsulphonic acid in 98% sulfonic acid are added dropwise over 1 hour. The mixture is then stirred a further 3 hours at 0-3 C.
150g of ice and 17g of 98% sulfonic acid are placed in a 2.5 1 sulphonating vessel with stirrer, thermometer and external cooling. 29g of N-ethyl-N-(y-aminopropyl)-mtoluidine (prepared analogously to the method of Example 18 from N-ethyl-N-(ss- cyanoethyl)-m-toluidine) are added. The resulting solution is cooled to 0 C and 1-2g of amidosulphonic acid are added. The above diazonium salt solution is pumped in over one hour, keeping the temperature at 0-5"C by the addition of 500-800g of ice and external cooling. The mixture is allowed to stand for 1-2 hours while stirring and then it is filtered in a vacuum filter G3. The residue is suspended in about 4 1 of water, stirred for 30 minutes, filtered and vacuum dried.
To purify the product, it is reacted at room temperature with 400 ml of dimethylformamide and the insoluble parts are filtered off and then it is added to 2.5 liters of chloroform. The precipitated dyestuff is filtered off, and the purification process is repeated. Finally the product is washed with 1000 ml chloroform and dried under vacuum. 15 g of a compound (in ammonium salt form) of the formula
Rf value: 0.14.
Measured according to the thin layer chromotography method of Example 17.
Examples 86-100
Compounds of the formula
in which the symbols are defined in Table 5 below can be prepared from appropriate reactants by known methods.
TABLE 5
Ex. Nr. W1 W2 R3 R8 n Rf 86 -CH=C(CN)-(COOC4H9) Cl -CH3 -C2H5 3 0.15 87 -CH=C(CN)2 H do do 3 0.01 88 88 -NO2 H H do 2 0.19 89 89 -CH=C(CN)2 C1 H do 2 0.22 90 90 -CHO Cl -H do 3 0.23 91 | -CH=CH-NO2 | Cl | -CH3 | do | 3 92 -CH=C(CN)2 CH3 do do 3 93 do C6H5 H do 2 94 do Cl H -CH3 2 95 do Cl H -C2H5 3 0.15 96 -CH=C(CN)-(COOCH3) Cl -CH3 do 3 97 do Cl do do 3 98 -CH=C(CN)-(COOCH3) Cl do do 3 99 -CH=C(COOC2H6)2 Cl do do 3 100 -C(CN)=C(CN)2 Cl do do 3 Examples 101-108
Compounds of the formula
in which the symbols are defined in Table 6 can be prepared by a method analogous to that of Example 85 from suitable reactants.
TABLE 6
Ex. Nr | W1 | W2 | R3 | R8 | n 101 -CHO Cl -CH3 -O2H5 3 102 do Cl H do 2 103 -CH=C(CN)2 Cl -CH3 do 3 104 -CH=C(CN)(COOC4H9) Cl H do 2 105 do Cl -CH3 do 3 106 -CH=C(CN)(COOC4H9) Cl -CH3 do 3 107 -CH=CH2-NO2 Cl -CH3 do 3 108 -C(CN)=(CN)2 Cl -CH3 do 3 Examples 109-113a
Compounds of the formula
in which the symbols are defined in Table 7 can be prepared from known compounds by standard diazotization and coupling procedures.
TABLE 7
Ex. Nr. A2 Y2 Y3 R3 R5 Rf 109 S Cl Cl H -NH2 0.77 110 | S | Cl | Cl | -CH3 | -N(C2H5)-(CH2)3NH2 | 0.23 111 S Cl Cl H do 0.23 112 S H H -OH3 -N(C2H5)-(CH2)2NH2 113 0 H H do do 113a S C1 Cl H do Example 114
A compound of the formula
can be prepared by desulphonating, by known methods the 2-sulphonic acid derivative.
Example 115
Reaction of poly-(styrene-co-maleic acid anhydride) of Example 1 with the chromophore of Example 18.
A filtered solution of 2.01 g of the chromophore of Example 18 in 50 ml of dimethylformamide is added in drops to a solution of 1.17 g of poly-(styrene co maleic acid anhydride) in 15 ml of dimethylformamide, and the solution is stirred for 2 hours at room temperature. The preparation is filtered and slowly added dropwise to 650 ml of methanol, the precipitated product is filtered off, washed with methanol and dried at 50 /33 mbar.
According to the method described above, the reaction may be carried in 20ml.
dimethylformamide as a solvent; before precipitation, the solution of the polymer is diluted with further 20 ml. dimethylformamide, N-methylpyrrolidone or tetrahydrofuran.
The precipitation of the polymer may also be performed in acetic acid ethyl ester.
The reaction according to Example 115 may also be carried out in Nmethylpyrrolidone as a solvent.
The reaction according to Example 115 mays also be performed with the ammonium salt of the dyestuff with the addition of 2.5 ml. triethylamine in dimethylformamide or in N-methylpyrrolidone.
According to the method described in Example 115, the reaction may also be carried out at temperatures between room temperature and 12000.
Examples 116-117
Compounds having repeating units of the formula
in which the symbols are defined in Table 8, can be prepared by a method analogous to that of Example 115 from appropriate reactants.
TABLE 8
Ex | R8 | R3 | R1 | R2 | n | Mw | Chromo- |#max Nr. (backbone) phore* [nm] [g/mol] | [mol%] 116 -CH3 H Cl H 3 86 516(DMF) 117 -C2H5 -CH3 Cl H 3 110000 95 * Chromophore units per 100 repeating units of the backbone (also in the following tables).
Examples 118-126
Compounds having repeating units of the formula
in which R29 is defined in Table 9 can be prepared by a method analogous to that of
Example 115 from known compounds.
TABLE 9
Ex R29 Mw Chromo- #max Nr. | | (backbone) | phoe | [nm] [g/mol] [mol%]
118 NtS e NO2 97 393(DMF) J 120 /-7 91 352(DMF) NNO, 121 79 391(DMF) - M 122 98 523(DMF) m\ EFN MMM 123 -HN-CH2-0H2-CH2-N(O6H5)0H3
124 70000 75 617, 579 (DMF) N o NH, 125 do 70000 45 618, 580 (DMF) 126 do 145000 77 Examples 127-128
By modifying the procedure of Example 115 to start with insoluble poly(methacrylic acid anhydride prepared in Example 6 in suspension, compounds having repeating units of the formula
in which R30 is defined in Table 10 below can be prepared.
TABLE 10
Ex. Nr. R30 Chromo- Smax phore [nmj l [molto] 127 Am 70 ---N P 128 54 525(DMF) N N-- No, Examples 129-132
Compounds having recurring units of the formula
in which the symbols are defined in Table 11 below can be prepared by a process analogous to that of Example 115.
TABLE 11
Ex. R8 R3 R1 R2 n R32 R33 Chromo- #max Nr. phore 129 -CH3 H Cl H 3 -OC2H5 H 72 130 do H Cl H 3 H H 79 131 C2H5 -CH3 CN H 3 -C6H5-p-OH H 84 553(DMF) 132 do do Cl H 3 do H 92 Examples 133-135
Similar compounds of the formulae
Formula 12
Formula 13
Formula 14
in which the symbols of Examples 133-135 are defined in Table 12 below can be prepared from appropriate reactants.
Table 12
Ex. Nr. Ra R3 R1 R2 n Formula Chromo- Xmm phore [nm] 133 -OH3 H Cl H 3 12 134 | -C2H5 | -CH3 | -NO2 | Br | 3 | 13 | 41 135 -CH3 H Cl H 3 14 75 Example 136
Reaction of the polyamide acid of Example 115 and ring closure to form the imide.
0.66ml of acetic anhydride and, optionally, trimethylchlorosilane are added to the reaction mixture of Example 115. This mixture is stirred for 2 hours at 12000. After cooling, the solution is filtered and is slowly added dropwise to a mixture of 700 ml of methanol and 70 mls of water. The precipitated product is filtered and dried at 50 C/25 torr.
The polymer may also be prepared with oxalylchloride in tetrahydrofuran in the place of acetic anhydride.
According to the method described in Examples 115 and 136, the reaction may also be carried out by addition of trimethylchlorosilane and trimethylamine to the dyestuff, followed by adding this mixture to a solution of the polymer.
Example 137-159
Compounds having recurring units of the formula
in which the symbols are defined in Table 13 can be prepared from appropriate reactants by a method analogous to that of Example 115 or Example 136.
TABLE 13
Ex R8 R, R1 R2 n Mw Chr Tg[ #max.
Nr. (Backb) omo- CJ [nm] [gimol] phor [mol] 137 C2H5 -OH3 H H 3 68 161 138 do do H H 3 110000 63 139 do do H H 3 110000 46 140 do do H H 3 70000 94 140 504(DMF) 141 do do H H 3 90 137 494 (CH2C12) 142 do do H H 3 70000 58 507(DMF) 143 do do Cl H 3 61 164 530(DMF) 144 do do Cl H 3 82 148 145 do do Cl H 3 110000 76
Ex | R8 | R3 | R1 | R2 | n | Mw | Chr | Tg[ | #max.
Nr. (Backb) omo- C] [nm] [g/mol] phor [mol %] 146 do do Cl H 3 110000 80 149 147 do do Cl H 3 85 148 do do Cl H 3 110000 89 149 -CH3 H H H 2 70000 92 170 468(CH2Cl2) 150 do H H H 2 70000 81 177 151 do H H H 2 70000 58 186 152 do H H H 2 4000000 58 153 do H H H 2 4000000 56 154 -C2H5 H H H 2 110000 86 172 481(DMF) 155 do H H H 2 70000 54 186 485(DMF) 156 do H H H 2 70000 36 201 486(DMF) 157 -CH3 H Cl H 3 110000 80 508(DMF) 158 -CH2C6H5 -CH3 Cl H 3 81 139 506(DMF) 159 -C2H5 do NO2 Br 3 81 Examples 160-170
Compounds containing recurring units of formula 16 or 17
Formula 16
Formula 17
in which the symbols and the formulae to which the Examples refer are defined in
Table 14 below can be prepared from appropriate reactants by known methods.
TABLE 14
Ex Nr. Ra Ra = = Formula of n Examples 160 | -C2H5 | -CH3 | -CHO | | 16 | 3 161 do H do 16 2 162 do H CH=C(CN)2 16 3 163 do H do 16 2 164 do H Cl -CHO 17 3 165 do H Cl -CHO 17 3 166 do H C1 -CHO 17 2 167 do H Cl CH=C(CN)2 17 3 168 do H H do 17 3 169 do H Cl do 17 2
170 | do | H | H | do | 17 | 2 Examples 171-181 Compounds containing recurring units of formula 18
in which the symbols are defined in Table 15 below can be prepared from suitable reactants. TABLE 15
Ex. X R32 R33 Mw Chromo- mp #max.
phore 171 =N-(CH2)3-N-CH3 C6H5 H 68 131 C6H5 172 do H -C6H4-m-CHO 173 # C6H5 H 70000 70 O NH N= ### O NH2
Ex. X R32 R33 Mw Chromo- mp #max.
phore 174 do do H 70000 31 175 do -CH3 H 145000 70 176 H H 245000 78 361(DMF) =N-#-CH=CH-#-N O 177 do C6H5 H 43
Ex. X R32 R33 Mw Chromo- mp #max.
phore 178 CH3 do H 72 525(DMF) C2H5 N-#-N-(-CH2)3-N= N-##-Cl Cl 179 do do H 42
Ex. X R32 R33 Mw Chormo- mp #max.
phore 180 CH3 do H 64 553(DMF) C2H5 N-#-N-(-CH2)3-N= N-## NO2 181 do do H 39 Examples 182-194
Compounds containing recurring units of the formula
in which the symbols are defined in Table 16 can be prepared analogously to the method of Example 115 from appropriate reactants. TABLE 16
Ex. Nr. R8 R3 R1 R2 n R32 R33 Mw chrom- Tg[ C] #max (Back) ophore [nm] [g/mol] [mol %] 182 -CH3 H Cl H 3 -OC2H5 H 80 135 499(DMF) 183 do H Cl H 3 H H 245000 71 113 508(DMF) 184 -C2H5 -CH3 Cl H 3 -CH3 H 145000 79 137 185 do do Cl H 3 do -CH3 225000 68 140 186 do do Cl H3 -C6H5 do 81 152 187 do do H H 3 do do 38000 93 137 497(CH2Cl2) 188 do do H H 3 do do 38000 90 142 496(CH2Cl2) 189 do do H H 3 do do 38000 147 190 -CH3 H H H 2 do do 38000 88 178 471(CH2Cl2) 191 do H H H 2 do do 38000 80 185 192 do H H H 2 do do 38000 57 192 193 do H H 2 -CH3 H 145000 88 160 477(DMF) 194 -C2H5 H Cl H 3 -C6H5-p-OH H 75 Examples 195-201
Compounds containing recurring untis of formula 20 to 24
Formula 20
Formula 21
Formula 22
Formula 23
Formula 24
in which the symbols are defined in Table 17 can be made from appropriate reactants.
TABLE 17
Ex. R8 R3 R1 R2 n Form Chrom- Tg[ C]] #max Nr. ophore [nm] [mol] 195 | 3 20 90 497(DMF) 196 -C2H5 -CH3 NO2 Br 3 21 20 575 (DMSO) 197 do do Cl H 3 21 50 518 (CH2C12) 198 3 22 66 146 516,300 (THF) 199 3 23 81 132 529(DMF) 200 do do H H 3 24 97 151 503(DMF) 201 -CH3 H H H 2 24 96 180 Examples 202-203
Compounds of formula 25
in which the symbols are defined in Table 18 below can be prepared from appropriate reactants by a method analogous to that of Examples 115 or 136.
TABLE 18
Ex.Nr R1 R3 Chromo- Tg[ C] #max phore [nm] [mol %] 202 -C2H5 -CH3 43 151 203 -CH3 | 1 H 523(DMSO) Example 204
A compound containing recurring units of formula 26
Formula 26
can be prepared as follows: 0.15g of tetracyanoethylene are added to a solution of 0.42g of the copolymer of
Example 171 in 5ml of N-methylpyrrolidene. The dark red reaction solution is stirred for 5 hours at room temperature, it is then diluted with 2ml of Nmethylpyrrolidene, filtered and slowly added dropwise to 200ml of acetic acid ethyl ester. The precipitated copolymer is filtered and dried at 30"C and 25 torr.
UV: Xmax = 527nm (NMP)
Application Example 205 1g of the polymer of Example 141 is dissolved over 4 hours at room temperature in 9g of a mixture of 8.1g of cyclohexanone and 0.9g of N-methylpyrrolidone. To remove dust particles, the solution is filtered through a PTFE filter having an average pore size of 0.2pom.
A glass plate having a size 50x50 mm is cleaned as follows: it is treated with a concentrated soap solution in an ultrasonic bath for about 1 hour, washing with sequentially distilled water, acetone and distilled water again and finally drying in a vacuum drying cupboard for about 12 hours at 80"C.
In a dust-free atmosphere, in a spin coating apparatus the abovementioned polymer solution is spun on to the glass plate at 2400 revs/min. over 50 sec. Finally this is dried for about 20 hours at 70"C, 150"C and 17000.
A homogenous film with good optical properties results. The thickness of the film is 0.4-0.Sum (measured on a Alpha Step from Tencor)
The film is polarized in a Corona Poling machine at 140-150"C at about 5 kVolt over 30 mins.
The poling procedure is carried out by SHG measurements according to the maker fringe methods at 1064nm as described for example by M.A. Mortazavi et al in J.
Opt. Soc. Am. B, 6(4) 741 (1989).
After achieving the maximum SHG signals the plates are cooled to room temperature by means of the activated electric field.
The following values for the Non-Linear Optics (NLO) coefficients result: d 31=360 pm/V (1064nm, resonance increase).
Application Examples 206-209
Analogously to Application Example 205, polymers defined in Table 19 can be applied by spin coating at a thickness of 0.4-0.Spm. The optimal poling temperature as well as the d 31 are given in Table 19. In Example 209 the glass plate used was Indium
Tin Oxide (ITO) glass 26x75mm from Balzer. Spinning rate was 3800 revs/min. over 50 sec. Film thickness was 1.6-1.9pM.
TABLE 19
Ex. Nr.| Polymer from example | Optimal poling temp. | 3#d31**(pm/V) 206 146 150-160 C 280 207 149 170-180 C 361 208 180 170-200 C 90 209 154 170-180 C 78 (1313nm) ** except Example 209 where it is d 33.
The polymer fiber when poled shows good long stability.
Application Example 210
The following polymer solutions are formed a) 1g of the polymer of Example 138 in a mixture of 3.6g of cyclohexonane and 0.4g
of N-methylpyrrolidone. (Polymer a) b) 2g of the polymer of Example 146 in a mixture of 5.4g of cyclohexonane and 0.6g
of N-methylpyrrolidone. (Polymer b) c) 2g of the polymer of Example 1 in a mixture of 7.2g of cyclohexonane and 0.8g
of N-methylpyrrolidone. (Polymer c)
To remove dust particles, the solutions are passed through a Teflon filter having a average size of 0.2pm.
Production of polymer layers a) A silicon wafer is cut to the size of 20x20mm and purification is carried out as
per Example 205 (for glass plates). Under a dust-free atmosphere, the polymer
a) is coated on to the silicon wafer in a spin coating apparatus at 3800 rev/min.
over 50 seconds. The layer is then dried in a drying cupboard sequentially for 20
hours at the following temperatures 70"C, 150"C and 170 C. The thickness of the
layer of polymer a) is 1.65pm.
b) A second layer of polymer b) is deposited on top of polymer layer a) to form a
double layer by means of a spin coating, as above, at 3400 revs/min for 50
seconds. Drying is carried out, as above. The thickness of the double layer a)
and b) is 4.45cm.
c) Polymer c) deposited on top of polymer fiber a) and b). A third fiber of polymer
c) is deposited on top of the double fiber a) by spin coating as described above at
5700 revs/min for 50 seconds. Drying is performed as described above. The
thickness of the three layers is 6.45cm.
Two parallel grooves spaced 1 cm. apart are etched into the silicon wafer. One of the grooves is coupled to a laser beam having a wavelength of 1064 nm, and the other groove with a IR camera and monitor to measure the light being emitted. The polymer layers show excellent wave guiding properties.
Example 211
Electrooptical devices, as described in SPIE Proceeding 1337, 215 (1990) can be prepared using the three layer polymer fiber produced in Example 210.
Claims (15)
1. A polymer having non-linear optical properties, comprising a polymeric backbone
a) (hereinafter defined as polymer backbone a) and at least one chromophore b)
(hereinafter defined as chromophore b) attached thereto by means of a bridging
moiety (hereinafter defined as bridging group c); the bridging group so
constituted that the chain of linking atoms (hereinafter defined as chain d)
thereof does not contain an ester linkage.
2. A polymer according to claim 1 in which the chain d) does not contain a urea
group (-NH-CO-NH-).
3. A polymer according to claim 1 or claim 2 in which the bridging group c) contains
an imide, isoimide or imide group, provided the chain d) does not contain an
ester-amide group.
4. A polymer according to any one of the preceding claims in which the bridging
group c) contains an amino alkyl imido group, the amino being bound to the
chromophore and the imido group being bound to the polymer chain.
5. A polymer according to any one of the preceding claims in which the glass
transition temperature (Tg) of the polymer is from 120-250"C, more preferably 135-210"C.
6. A polymer according to any one fo the preceding claims in which the basis
polymer for forming the polymer backbone a) (hereinafter defined as the "basis"
polymer) is a homo-, co- or ter-polymer derived from monomeric compounds
having one or more groups capable of condensation and/or polymerization.
7. A polymer according to claim 6 in which the monomeric compounds are
preferably selected from aliphatic or cyclic anhydrides or imides, for example, maleic anhydride, maleic acid imide, methacrylic acid anhydride, itaconic acid anhydride or a citraconic acid anhydride which, if copolymers form, react with vinylic compounds such as thiophene, dihydrofurane, dihydropyrane, cyclohexene,
indole and N-alkylindole compounds of the formula
in which
R10, is selected from hydrogen, chloro and C1-6alkyl; and
R10a is selected from hydrogen, chloro, C1-6alkyl, phenyl, C1-6alkoxy, C1-5alkyl
carbonyloxy, C1-5alkoxy-methyl, C1-5alkylcarbonyloxymethyl, C1-4alkyloxy
carbonyl and a group of formulae a) to f)
where Rll is hydrogen or C1.6alkyl; each R12 independently is hydrogen or methyl; Rl3 is a bridging group, preferably selected from -0-, -S-, -SO2-,
CH2-O-, -CH2-O-CH2-, -CO-, -[C(Rl4)2]- or -[Si(R14)2]- where
each R14 independently is selected from hydrogen, methyl and
C4-6cycloalkyl or both groups R14 from an omega c4
6cycloalkylene group;
R15 is -CH2;
each R16 and R17 independently is selected from hydrogen, -CH=CH2, CH=CHCHa- -C(CH3)=CH2, -CHO or-COCH3;; or
both groups Ri6 together form a group =CH2 or =CH-CH3 and both groups R17
are hydrogen;
or one group R16 and one group R17 form a bridge of the
formula -CH2-CH=CH- or -CO-O-CO- and the other group R16
and the other group R17 are hydrogen;
R18 is hydroxy, carboxy, formyl or a group of the formula
-CH=C-CO-R20
R19
where R19 is hydrogen, methyl, ethyl or cyano; and R20 is hydrogen
hydroxy or C1-4alkoxy;
each R18a is hydrogen, fluoro or chloro; and
each R independently is halogen, preferably chloro or bromo or C1.
4alkyl and R22 is vinyl or alkyl.
8. A polymer according to claim 6 in which the basis polymers are the reaction
products of
i) an aliphatic or cyclic anhydride or imide, preferably maleic anhydride,
maleic acid imide, methacrylic acid anhydride, itaconic acid anhydride or
citraconic acid anhydride (hereinafter component i); with
ii) a compound selected from thiophene, 2,3- or 3,4 dihydrofurane,2,3
dihydropyrane, cyclohexene, indene, indole, N-C 14alkylindole and a
compound of formula I to V defined in claim 7 (hereinafter component ii).
9. A polymer according to claim 5 in which the ratio of component i) to component
ii) is 1:1 to 1:10, except when component i) is a cyclic anhydride and component
ii) is a compound of formula II in which case the ratio is 3:1 to 1:1..
10. A polymer according to anyone of the preceding claims in which the chromophone
b) is derived from chromophore-bearing compounds with non-linear optical
properties of formula XI-XV
in which R is hydrogen, halogen, carboxyl, cyano or rho dan; Ra is hydrogen, halogen, cyano, carbonyl or nitro; Ra is hydrogen, methyl, ethyl, methoxy, ethoxy, amino-C1-2alkyl or C1.
2alkylcarbonyl amino;
R3a is hydrogen, methyl, ethyl, methoxy or ethoxy
R4 is hydrogen, methoxy or ethoxy; Ria is hydrogen, methoxy or ethoxy;
R5 is a group of the formula -NH2, -N(R8)-(CH2)n-NH2;
and when R3 is C1-2alkyl amino, Ra may additionally be di(C1-4alkyl) amino; Ra is cynao, nitro, C1-2alkylsulphonyl, aminosulphonyl, dicyanovinyl,
tricyanovinyl, di(C1-4alkoxycarbonyl) vinyl of a group of the formula
-C(C1-4-alkyl)=c(CN)2, -CH=CH-NO2, -CH=C(CN)-CO-O-C14alkyl, or
R7 is hydrogen or nitro;
R8 is hydrogen, C1-4alkyl, benzyl or C1-2lakoxycarbonyloxy-C2-3alkyl;
A1 is a direct bond, -CH=CH-, -N=CH- or -CH=N-;
A2 is -S- or -O-;;
R30 is a group of the formula a), b) or c)
where
R31 is tricyanovinyl, -NO2, -CHO, -CH=C(CN)2, -CH=CH-NO2, -CH=C(CN)
(COOC1-4alkyl)2 or CH=C(COOC1-4alkyl)2
R32 is hydrogen, chloro, O1.4alkyl or phenyl;
Y1 is nitro, formyl, cyano, C1-2alkylsulphonyl, tricyanovinyl or dicyanovinyl; -Z1= is -N=, OH- or =C(NO2)-; -Z2= is =N-, OH- or =C(NO2)-;
p is 0, 1 or 2; and
n is O or 1 to 9
11. A optical device capable of acting as a wave guide for lower light of dittering
wavelengths containing a polymer according to any one of the preceding claims.
12. An optical device comprising
a) a top buffer being a layer of polymer a) as defined above containing no non
linear optical (NLO) chromophore, a minor amount of NLO chromophore or
non-NLO chromophore;
b) a main layer being a layer of a polymer according to any one of the
preceding claims combining 10-100% NLO chromophore; and
c) a bottom buffer, being a layer of polymer a) containing no NLO chromophore,
a minor amount of NLO chromophore (e.g. from 1-10%) or non-NLO
chromophore.
13. A device according to claim 12 in which the non-non-linear optical chromophores
(non-NLO chromophores) are those of formula VI and VII
in which A2, Ra, R4 and R5 are defined in claim 10;
each R40 independently is selected from hydrogen, fluoro, chloro, bromo, methyl
and methoxy; and
each R4l independently is selected from hydrogen, chloro, bromo, amino, mono
or di C1-4alkylamino Cm 4alkoxy and hydroxy.
14. A polymer with non-linear optical properties substantially as herein described
with reference to any one of the Examples.
15. A device containing a polymer with non-linear optical properties substantially as
herein described with reference to any one of the Examples.
Applications Claiming Priority (1)
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DE4213751 | 1992-04-25 |
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GB2267095A true GB2267095A (en) | 1993-11-24 |
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GB9308327A Withdrawn GB2267095A (en) | 1992-04-25 | 1993-04-22 | Compounds with non-linear optical properties |
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JP (1) | JPH0673124A (en) |
FR (1) | FR2690453B1 (en) |
GB (1) | GB2267095A (en) |
IT (1) | IT1261452B (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5654376A (en) * | 1993-12-16 | 1997-08-05 | International Business Machines Corporation | Polymeric dyes for antireflective coatings |
US5688906A (en) * | 1990-12-12 | 1997-11-18 | Enichem S.P.A. | Highly efficient nonlinear optical polyimides |
US5736592A (en) * | 1995-02-15 | 1998-04-07 | Enichem S.P.A. | Process for intramolecularly condensing a non-linear optical polyamic acid composition |
US6126867A (en) * | 1998-03-09 | 2000-10-03 | Siemens Aktiengesellschaft | Nonlinear-optically active copolymers, polymer materials produced from them, and electrooptical and photonic components constructed therefrom |
US6184305B1 (en) | 1996-09-15 | 2001-02-06 | Clariant Finance (Bvi) Limited | Radiation absorbing polymer and synthesis thereof |
CN102713749A (en) * | 2009-12-18 | 2012-10-03 | 太阳化学公司 | Colored fluids for electrowetting, electrofluidic, and electrophoretic technologies |
US20130289218A1 (en) * | 2010-05-25 | 2013-10-31 | Dalian University Of Technology | Polycarboxylic acid dye with low polymerization degree |
CN109054438A (en) * | 2018-09-03 | 2018-12-21 | 苏州大学 | Dedicated azo dyes of natural fiber non-aqueous dyeing and preparation method thereof in supercritical fluid CO 2 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7235096B2 (en) * | 2016-12-07 | 2023-03-08 | 東ソー株式会社 | Copolymer and retardation film using the same |
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DE59103577D1 (en) * | 1990-09-24 | 1995-01-05 | Siemens Ag | Cross-linked epoxy resins with non-linear optical properties. |
DE4132685A1 (en) * | 1991-10-01 | 1993-04-08 | Basf Ag | POLYMERISATES CONTAINING AZO DYES |
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1993
- 1993-04-21 FR FR9304803A patent/FR2690453B1/en not_active Expired - Fee Related
- 1993-04-22 GB GB9308327A patent/GB2267095A/en not_active Withdrawn
- 1993-04-23 JP JP5120820A patent/JPH0673124A/en active Pending
- 1993-04-23 IT ITRM930258A patent/IT1261452B/en active IP Right Grant
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US4611890A (en) * | 1984-01-24 | 1986-09-16 | Research Corporation | Redox chromophore compounds and electrodes of metal containing substituted bipyridines |
WO1989008686A1 (en) * | 1988-03-12 | 1989-09-21 | MERCK Patent Gesellschaft mit beschränkter Haftung | Zwitterion nlo-chromophores |
US4935292A (en) * | 1988-03-15 | 1990-06-19 | Northwestern University | Functionalized polymers for nonlinear optical application |
WO1991003001A1 (en) * | 1989-08-12 | 1991-03-07 | MERCK Patent Gesellschaft mit beschränkter Haftung | Non-linear optically active polyimides |
EP0469941A1 (en) * | 1990-07-31 | 1992-02-05 | Thomson-Csf | Amorphous copolymers for photorefractive compounds used in optical signal treatment |
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GB2255336A (en) * | 1991-04-29 | 1992-11-04 | Sandoz Ltd | Compounds having non - linear optical properties |
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Cited By (15)
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US5688906A (en) * | 1990-12-12 | 1997-11-18 | Enichem S.P.A. | Highly efficient nonlinear optical polyimides |
US5731385A (en) * | 1993-12-16 | 1998-03-24 | International Business Machines Corporation | Polymeric dyes for antireflective coatings |
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US6051364A (en) * | 1993-12-16 | 2000-04-18 | International Business Machines Corporation | Polymeric dyes for antireflective coatings |
US5654376A (en) * | 1993-12-16 | 1997-08-05 | International Business Machines Corporation | Polymeric dyes for antireflective coatings |
US5736592A (en) * | 1995-02-15 | 1998-04-07 | Enichem S.P.A. | Process for intramolecularly condensing a non-linear optical polyamic acid composition |
US6184305B1 (en) | 1996-09-15 | 2001-02-06 | Clariant Finance (Bvi) Limited | Radiation absorbing polymer and synthesis thereof |
US6126867A (en) * | 1998-03-09 | 2000-10-03 | Siemens Aktiengesellschaft | Nonlinear-optically active copolymers, polymer materials produced from them, and electrooptical and photonic components constructed therefrom |
CN102713749A (en) * | 2009-12-18 | 2012-10-03 | 太阳化学公司 | Colored fluids for electrowetting, electrofluidic, and electrophoretic technologies |
CN102713749B (en) * | 2009-12-18 | 2015-12-09 | 太阳化学公司 | Soak for electricity, the colored fluid of electrofluid and electrophoretic techniques |
US20130289218A1 (en) * | 2010-05-25 | 2013-10-31 | Dalian University Of Technology | Polycarboxylic acid dye with low polymerization degree |
US9040634B2 (en) * | 2010-05-25 | 2015-05-26 | Dalian University Of Technology | Polycarboxylic acid dye with low polymerization degree |
CN109054438A (en) * | 2018-09-03 | 2018-12-21 | 苏州大学 | Dedicated azo dyes of natural fiber non-aqueous dyeing and preparation method thereof in supercritical fluid CO 2 |
WO2020048018A1 (en) * | 2018-09-03 | 2020-03-12 | 苏州大学 | Azo dye dedicated for water-free dyeing of natural fiber in supercritical co 2 fluid, and preparation method therefor |
US11193024B2 (en) | 2018-09-03 | 2021-12-07 | Soochow University | AZO dye for waterless dyeing of natural fibers in supercritical CO2 fluid, and preparation method thereof |
Also Published As
Publication number | Publication date |
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IT1261452B (en) | 1996-05-23 |
GB9308327D0 (en) | 1993-06-09 |
FR2690453A1 (en) | 1993-10-29 |
FR2690453B1 (en) | 1995-11-03 |
ITRM930258A1 (en) | 1994-10-23 |
JPH0673124A (en) | 1994-03-15 |
ITRM930258A0 (en) | 1993-04-23 |
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