A common route to A2B and A3B multiarm star block copolymers

被引：19
|
作者：
Meyer, N [1 ]
Delaite, C [1 ]
Hurtrez, G [1 ]
Dumas, P [1 ]
机构：
[1] ENSCMu, Lab Chim Macromol, CNRS, ICSI,UPR 9069, F-68093 Mulhouse, France
来源：
POLYMER | 2002年 / 43卷 / 25期
关键词：
star block copolymer; 1,1-diphenylethylene chemistry; nucleophilic substitution;
D O I：
10.1016/S0032-3861(02)00454-8
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
We have previously described a new route to A(2)B star block copolymers by a double addition-elimination reaction of a polystyryl carbanion with a particular 1,1-diphenylethylene derivative. By using the same reagent, we are now able to prepare A(2) or A(3) homopolymers by changing the solvent, i.e. tetrahydrofuran or toluene/tetrahydrofuran, respectively. We propose a mechanism involving nucleophilic substitution reactions to explain this peculiar result and use this opportunity to prepare A(2)B or A(3)B star block copolymers based on styrene and ethylene oxide or tert-butyl methacrylate. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：7133 / 7139
页数：7
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