Anionic polymerization of 4-(9-carbazolyl)methylstyrene

被引：41

作者：

Cho, YS ^{[1
]}

Kim, SW ^{[1
]}

Ihn, CS ^{[1
]}

Lee, JS ^{[1
]}

机构：

[1] Kwangju Inst Sci & Technol, Dept Mat Sci & Engn, Puk Gu, Kwangju 500712, South Korea

来源：

POLYMER | 2001年 / 42卷 / 18期

关键词：

anionic polymerization; PCMS; proton abstraction;

D O I：

10.1016/S0032-3861(01)00259-2

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

For the application of conjugated polymers in photonics, we synthesized styrene derivatives containing carbazole, 4-(9-carbazolyl)methylstyrene (CMS). The anionic polymerization of CMS was carried out in THF at either -45 or -78 degreesC. It takes around 24 h to get PCMS with 100% yield in THF at -78 degreesC, due to the crystallization of CMS at this temperature. However, the yield exceeded 90% within 10 min. On the other hand, the yield of CMS at -45 degreesC levels up at about 67%, after 30 min. The molecular weight distributions of PCMS obtained at -45 degreesC are broader than those of PCMS synthesized at -78 degreesC. This may be due to the side reactions, such as methylene proton abstraction at the propagating end groups at higher polymerization temperature of -45 degreesC. The glass transition temperature of the polymer measured by DSC was observed in the range of 159-173 degreesC. (C) 2001 Published by Elsevier Science Ltd.

引用

页码：7611 / 7616

页数：6

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