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Synthesis of cyclolinear polymethylsiloxanes with two reactive groups and liquid-crystalline polymers on their basisстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 13 сентября 2017 г.
- Авторы: Petrova I.M., Makarova N.N., Kaznacheev A.V., Vlasova T.V., Men'shov V.M.
- Журнал: Russian Chemical Bulletin
- Том: 58
- Номер: 3
- Год издания: 2009
- Издательство: Springer Nature
- Местоположение издательства: Switzerland
- Первая страница: 604
- Последняя страница: 611
- Аннотация: Cyclolinear polymethylsiloxanes with reactive vinyl groups at the silicon atoms in the fragment SiO(3/2) have been synthesized for the first time by heterofunctional polycondensation of [2,6(2,8)-dichloro-2,6(2,8)-divinyl] methylcyclotetra(hexa)siloxanes with the corresponding dihydroxy derivatives. Their hydrosilylation with chlorodimethylsilane gives rise to cyclolinear polymers with 2-chlorodimethylsilylethyl substituents, hydrolysis of which leads to the corresponding hydroxy derivatives. Liquid-crystalline polymers with mesogenic cyanobiphenyl groups have been synthesized by hydrosilylation with (4'-cyanobiphenyl-4-yl) 11-(1,1,3,3-tetramethyldisiloxanyl) undecanoate. The structures of the polymers obtained have been studied by (1)H and (29)Si NMR and IR spectroscopy, GPC, viscometry, X-ray diffraction, and polarization optical microscopy.
- Добавил в систему: Казначеев Анатолий Викторович