Preparation of branched polymer by radical polymerization using polymerizable chain transfer agent

被引：37

作者：

Yamada, B ^{[1
]}

Konosu, O ^{[1
]}

Tanaka, K ^{[1
]}

Oku, F ^{[1
]}

机构：

[1] Osaka City Univ, Fac Engn, Mat Chem Lab, Osaka 5588585, Japan

来源：

POLYMER | 2000年 / 41卷 / 15期

关键词：

radical polymerization; addition-fragmentation chain transfer; end group;

D O I：

10.1016/S0032-3861(99)00778-8

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Methyl methacrylate was polymerized in the presence of a polymerizable addition-fragmentation chain transfer agent consisting of methacryloyl and alpha-(benzylthiomethyl)acryloyl groups as dual functionality. The copolymers containing up to 3.1 mol% of the units from the transfer agent were prepared. The polymerizable chain transfer agent can connect up to three polymer chains as a result of copolymerization followed by chain transfer or vice versa as one step branching. Furthermore, each branch could also involve branching points for secondary branching. The unsaturated moieties from the chain transfer agent were subjected to addition of poly(styrene) radical to yield hyperbranched block copolymer consisting of poly(methyl methacrylate) and poly(styrene) segments without gelation. A side reaction of the unsaturated moiety was also shown. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：5625 / 5631

页数：7

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