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Controlled homo- and copolymerization of epsilon-caprolactone and d,l-lactide in the presence of Ti-IV complexesстатья
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: 9 декабря 2015 г.
- Авторы: Piskun Yu A., Vasilenko I.V., Zaitsev K.V., Karlov S.S., Zaitseva G.S., Gaponik L.V., Kostjuk S.V.
- Журнал: Russian Chemical Bulletin
- Том: 64
- Номер: 1
- Год издания: 2015
- Издательство: Springer Nature
- Местоположение издательства: Switzerland
- Первая страница: 181
- Последняя страница: 188
- DOI: 10.1007/s11172-015-0840-7
- Аннотация: Titanium complexes with dialkanolamine (1, 2) and salen ligands (3), as well as titanium alkoxide containing two fragments of an unsaturated alcohol (cis-but-2-ene-1,4-diol) as epsilon-ligands (4), were studied in the anionic ring-opening bulk polymerization of E >-caprolactone (CL) at 80-130 A degrees,C. All the catalysts involved initiate controlled polymerization and afford polyesters with a number-average molecular weight up to M-n = 20 000 g mol(-1), which can be regulated by adjusting the [monomer]: [catalyst] ratio. Among the catalysts studied, complex 2 is most efficient in CL polymerization and affords polyesters with the narrowest molecular weight distribution (M-w/M-n < 1.2). In addition, complex 2 initiates the controlled polymerization of d,l-lactide (LA) and is effective in the synthesis of random and block copolymers of CL and LA.
- Добавил в систему: Зайцев Кирилл Владимирович