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
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 |
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