SU341816A1 - Method of producing polysiloxanurethane - Google Patents
Method of producing polysiloxanurethaneInfo
- Publication number
- SU341816A1 SU341816A1 SU1447580A SU1447580A SU341816A1 SU 341816 A1 SU341816 A1 SU 341816A1 SU 1447580 A SU1447580 A SU 1447580A SU 1447580 A SU1447580 A SU 1447580A SU 341816 A1 SU341816 A1 SU 341816A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- producing
- polysiloxanurethane
- polysiloxanurethanes
- organosilicon compound
- hours
- Prior art date
Links
- 238000006243 chemical reaction Methods 0.000 description 7
- 150000003961 organosilicon compounds Chemical class 0.000 description 4
- 125000005442 diisocyanate group Chemical group 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- -1 polydimethylsiloxanes Polymers 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 3
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 150000003512 tertiary amines Chemical class 0.000 description 2
- DVKJHBMWWAPEIU-UHFFFAOYSA-N Toluene diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- AYOHIQLKSOJJQH-UHFFFAOYSA-N dibutyltin Chemical compound CCCC[Sn]CCCC AYOHIQLKSOJJQH-UHFFFAOYSA-N 0.000 description 1
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Description
Изобретение относитс к способу получени полисилоксануретанов.This invention relates to a process for the preparation of polysiloxanurethanes.
Известен способ получени полисилоксануретанов путем взаимодействи при нагревании органического диизоцианата и кремнийорганического соединени , содержащего гидроксильную группу в органическом радикале.A method of producing polysiloxanurethanes is known by reacting with heating an organic diisocyanate and a silicone compound containing a hydroxyl group in the organic radical.
Согласно предлагаемому способу, с целью получени полисилоксануретапов, обладающих повышенной термостабильностью, в качестве исходного кремнийорганического соединени берут а,со-ди(гидроксиарилокси)-полидиметилсилоксаны и процесс провод т в присутствии катализатора, например, третичного амина или дибутилоловодилаурината. Реакцию провод т при температуре 50-120°С в течение 6-20 час и при соотношении кремнийорганическое соединение : органический диизоцианат от 1 : 1 до 1 ; 2.According to the proposed method, in order to obtain polysiloxaneuretaps with enhanced thermostability, a, co-di (hydroxyaryloxy) polydimethylsiloxanes are taken as the starting organosilicon compound and the process is carried out in the presence of a catalyst, for example, a tertiary amine or dibutyltin dilaurinate. The reaction is carried out at a temperature of 50-120 ° C for 6-20 hours and with a ratio of organosilicon compound: organic diisocyanate from 1: 1 to 1; 2
В результате реакции получают высоков зкие стабильные при храпении продукты.As a result of the reaction, highly viscous, snake-stable products are obtained.
Полученные полимеры могут быть использованы в качестве промежуточных продуктов дл получени блоксополимеров.The polymers obtained can be used as intermediates for the preparation of block copolymers.
Пример 1. В колбу загружают 43,77 г (0,0042 моль) полисилоксана общей формулыExample 1. The flask is charged 43.77 g (0.0042 mol) of polysiloxane of the general formula
НОКО- 81(СНз)NOKO- 81 (SNZ)
ловодилаурината. Реакционную массу нагревают при температуре 50°С в течение 19 час и при перемешивании. В результате получают полимер с конверсией NCO-rpynn 47% (вычисленна конверси NCO-rpynn 47,5%).lododilaurinata. The reaction mass is heated at 50 ° C for 19 hours and with stirring. The result is a polymer with a conversion of NCO-rpynn 47% (calculated conversion NCO-rpynn 47,5%).
Пример 2. В колбу загружают 12,53 г (0,0012 моль) полисилоксана формулыExample 2. The flask is charged with 12.53 g (0.0012 mol) of a polysiloxane of the formula
HOW1 |й ен,)HOW1 | nd en)
IinIin
где R-СзН.,С(СНз)2СбН4, 0,228 г (0,0013лоль) 2,4-толуилендиизоцианата, 0,0338 г дибутилоловодилаурината . Реакционную массу перемешивают при 120°С в течение 15 час. В результате получают высоков зкий полимер, растворимый в ацетоне. Пайденна конверси изоцианатных групп 95%, вычисленна 97%.where R-СзН., С (СНз) 2СбН4, 0.228 g (0.0013 l) of 2,4-toluene diisocyanate, 0.0338 g of dibutyltin dilaurate. The reaction mass is stirred at 120 ° C for 15 hours. The result is a highly viscous polymer, soluble in acetone. The 95% isocyanate group conversion rate calculated to be 97%.
Предмет изобретени Subject invention
Способ получени полисилоксануретанов путем взаимодействи при нагревании органического диизоцианата и кремнийорганического соединени , содержащего гидроксильную группу в органическом радикале, отличающийс тем, что, с целью получени полисилоксануретанов , обладающих повышенной термостабильностью , в качестве кремнийорганического соединени берут а,(й-ди(гидроксиарилокси)полидиметилсилоксан и процесс провод т в присутствии катализатора, например, третичного амина или днбутилоловодилаурината.The method of producing polysiloxanurethanes by reacting with heating an organic diisocyanate and an organosilicon compound containing a hydroxyl group in an organic radical, characterized in that, in order to obtain polysiloxanurethanes having an increased thermostability, a, (y-di (hydroxyaryoxy-xyloxy) is used as the organosilicon compound, the process is carried out in the presence of a catalyst, e.g., a tertiary amine or dibutyl tin dilurinate.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU341816A1 true SU341816A1 (en) |
Family
ID=
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3976676A (en) * | 1974-03-25 | 1976-08-24 | Ciba-Geigy Corporation | Polysiloxane compounds containing hydroxyl groups |
| US3981898A (en) * | 1974-03-25 | 1976-09-21 | Ciba-Geigy Corporation | Polysiloxanes containing hydroxyl groups |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3976676A (en) * | 1974-03-25 | 1976-08-24 | Ciba-Geigy Corporation | Polysiloxane compounds containing hydroxyl groups |
| US3981898A (en) * | 1974-03-25 | 1976-09-21 | Ciba-Geigy Corporation | Polysiloxanes containing hydroxyl groups |
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