Synthesis of poly(vinyl acetate)-b-polystyrene and poly(vinyl alcohol)-b-polystyrene copolymers by cobalt-mediated radical polymerization

被引：52

作者：

Bryaskova, Rayna ^{[1
]}

Willet, Nicolas ^{[1
]}

Debuigne, Antoine ^{[1
]}

Jerome, Robert ^{[1
]}

Detrembleur, Christophe ^{[1
]}

机构：

[1] Univ Liege, Ctr Educ & Res Macromol, B-4000 Liege, Belgium

来源：

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 2007年 / 45卷 / 01期

关键词：

amphiphiles; block copolymers; controlled radical polymerization; copolymerization; poly(vinyl alcohol);

D O I：

10.1002/pola.21806

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Well-defined poly(vinyl acetate) macroinitiators, with the chains thus end-capped by a cobalt complex, were synthesized by cobalt-mediated radical polymerization and used to initiate styrene polymerization at 30 degrees C. Although the polymerization of the second block was not controlled, poly(vinyl acetate)-b-polystyrene copolymers were successfully prepared and converted into amphiphilic poly(vinyl alcohol)-b-polystyrene copolymers by the methanolysis of the ester functions of the poly(vinyl acetate) block. These poly(vinyl alcohol)-b-polystyrene copolymers self-associated in water with the formation of nanocups, at least when the poly(vinyl alcohol) content was low enough. (c) 2006 Wiley Periodicals, Inc.

引用

页码：81 / 89

页数：9

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