SU497318A1 - The method of obtaining silylmethylene polymer - Google Patents
The method of obtaining silylmethylene polymerInfo
- Publication number
- SU497318A1 SU497318A1 SU888764A SU888764A SU497318A1 SU 497318 A1 SU497318 A1 SU 497318A1 SU 888764 A SU888764 A SU 888764A SU 888764 A SU888764 A SU 888764A SU 497318 A1 SU497318 A1 SU 497318A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- silylmethylene
- polymer
- obtaining
- tetramethyl
- vacuum
- Prior art date
Links
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Description
1one
Известен способ получени жидких силилметиленовых полимеров с небольшим молекул рным весом путем полимеризации 1,1,3,3-тетраметил-1 ,3-дисиликациклобутана при нагревании до 300°С под высоким давлением.A known method of producing liquid silylmethylene polymers with a low molecular weight by polymerization of 1,1,3,3-tetramethyl-1, 3-disilicacyclobutane when heated to 300 ° C under high pressure.
Предложенный способ дает возможность получать каучукоподобные полимеры. Особенность способа заключаетс в том, что 1,1,3,3тетраметил-1 ,3-дисиликациклобутан предварительно вакуумируют при . ст. над щелочным металлом и полимеризацию ведут в вакууме. Пагревание производитс при 150-200°С.The proposed method makes it possible to obtain rubber-like polymers. A feature of the method is that 1,1,3,3 tetramethyl-1, 3-disilicacyclobutane is pre-evacuated at. Art. over alkali metal and polymerization are carried out in vacuum. Blowing is carried out at 150-200 ° C.
Способ осуществл етс следующим образом. 5 г 1,1,3,3-тетраметил-1,3-дисиликациклобутан помещают в сосуд дл обезгаживани в присутствии 0,1 г металлического кали . После многократно повторенной операции обезгаживани мономера в вакууме при 10 мм рт. ст. мономер переконденсируют в ампулу и запаивают . Затем нагревают ампулу до 180°С и выдерживают при этой температуре б час. Полученный полимер переосаждают из бензольного раствора метанолом и освобождают от растворител в вакууме 10 мм рт. ст. при 80°С.The method is carried out as follows. 5 g of 1,1,3,3-tetramethyl-1,3-disilicacyclobutane are placed in a vessel for degassing in the presence of 0.1 g of metallic potassium. After repeatedly repeating the operation of degassing the monomer in vacuum at 10 mm Hg. Art. the monomer is recondensed into the ampoule and sealed. Then the ampoule is heated to 180 ° C and maintained at this temperature b hour. The resulting polymer is reprecipitated from the benzene solution with methanol and freed from the solvent in a vacuum of 10 mm Hg. Art. at 80 ° C.
Полимер представл ет собой белый каучук, имеющий характеристическую в зкость ii 5,5; выход 90%.The polymer is a white rubber having an intrinsic viscosity ii 5.5; yield 90%.
Найдено, %: Si 38,23; С 50,6; Н 11,19.Found%: Si 38.23; C 50.6; H 11.19.
Вычислено, %: Si 38,88; С 49,93; Н 11,17.Calculated,%: Si 38.88; C 49.93; H 11.17.
Предмет изобретени Subject invention
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU888764A SU497318A1 (en) | 1964-03-17 | 1964-03-17 | The method of obtaining silylmethylene polymer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU888764A SU497318A1 (en) | 1964-03-17 | 1964-03-17 | The method of obtaining silylmethylene polymer |
Publications (1)
Publication Number | Publication Date |
---|---|
SU497318A1 true SU497318A1 (en) | 1975-12-30 |
Family
ID=20437867
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU888764A SU497318A1 (en) | 1964-03-17 | 1964-03-17 | The method of obtaining silylmethylene polymer |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU497318A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1980000446A1 (en) * | 1978-08-30 | 1980-03-20 | Inst Neftechimicheskogo Sintez | Macromolecular cristalline polymer with alternate dimethylene and methylsubstituted disilene units in the main chain and method of obtaining it |
RU2615522C1 (en) * | 2016-04-05 | 2017-04-05 | Акционерное общество "Ведущий научно-исследовательский институт химической технологии" | Method for ion exchanger preparation for gold sorption |
-
1964
- 1964-03-17 SU SU888764A patent/SU497318A1/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1980000446A1 (en) * | 1978-08-30 | 1980-03-20 | Inst Neftechimicheskogo Sintez | Macromolecular cristalline polymer with alternate dimethylene and methylsubstituted disilene units in the main chain and method of obtaining it |
RU2615522C1 (en) * | 2016-04-05 | 2017-04-05 | Акционерное общество "Ведущий научно-исследовательский институт химической технологии" | Method for ion exchanger preparation for gold sorption |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SU497318A1 (en) | The method of obtaining silylmethylene polymer | |
Saegusa et al. | Isomerization Polymerization of 1, 3-Oxazine. I. Polymerization of Unsubstituted 5, 6-Dihydro-4H-1, 3-oxazine Giving Poly (N-formyltrimethylenimine) and Its Alkaline Hydrolysis of Poly (trimethylenimine) | |
Emsley et al. | Polymerization of hexachlorotriphosphonitrile,(NPCl2) 3 | |
US2464056A (en) | Polymeric compositions | |
Higgins et al. | Soluble high polymers from allyl methacrylate | |
US3250746A (en) | Method of polymerization of acetaldehyde and formaldehyde in solution | |
GB623422A (en) | Polymerization of vinyl sulfonic acid and derivatives thereof | |
US3399149A (en) | Polymerization of oxirane monoepoxides using an organometallic compound with water as cocatalysts | |
SU363345A1 (en) | METHOD FOR PREPARING LOW-MOLECULAR POLYVINYL ACETATE | |
SU283573A1 (en) | Method of obtaining graft copolymers | |
SU455602A1 (en) | The method of obtaining liquid polymers with terminal functional groups | |
Tocker | The Preparation And Cyclization Of A Novel Copolymer Of Ethylene And Isoprene | |
US2726233A (en) | Purification of hydrogenated polystyrene | |
GB988335A (en) | Polymerisation process | |
SU455973A1 (en) | The method of obtaining chlorine-containing polymers | |
SU376395A1 (en) | METHOD OF OBTAINING SULFUR-CONTAINING POLYMERS | |
US3357953A (en) | Polymerization of trioxane | |
SU398569A1 (en) | METHOD OF OBTAINING HIGH-MOLECULAR POLYMERS OR COPOLYMERS OF ACETALDEHYDE | |
SU138047A1 (en) | The method of obtaining soluble polymers | |
US3264203A (en) | Method of polymerizing vinyl ethers | |
SU218434A1 (en) | METHOD OF OBTAINING PHOSPHOROUS CONTAINING RUBBER | |
US3072623A (en) | Homopolymer of p-dioxene and preparation thereof | |
SU412207A1 (en) | METHOD OF OBTAINING CARBOTSEP OLYGOMER WITH END FUNCTIONAL GROUPS | |
SU379593A1 (en) | METHOD OF OBTAINING RUBBER-LIKE COPOLYMERS | |
SU415280A1 (en) | METHOD OF OBTAINING SOPOLI | \\ EROV WITH FUNCTIONAL GROUPS1 ') |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
REG | Reference to a code of a succession state |
Ref country code: RU Ref legal event code: RH4F Effective date: 20140227 |