Synthesis of amphiphilic polystyrene-b-poly(acrylic acid) diblock copolymers by iodide-mediated radical polymerization

被引：8

作者：

Li, BY ^{[1
]}

Shi, Y ^{[1
]}

Zhu, WC ^{[1
]}

Fu, ZF ^{[1
]}

Yang, WT ^{[1
]}

机构：

[1] Beijing Univ Chem Technol, Minist Educ, Key Lab Sci & Technol Controllable Chem React, Beijing 100029, Peoples R China

来源：

POLYMER JOURNAL | 2006年 / 38卷 / 04期

关键词：

living radical polymerization; iodide-mediated radical polymerization; amphiphilic block copolymers; styrene; tert-butyl acrylate;

D O I：

10.1295/polymj.38.387

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Amphiphilic polystyrene-b-poly(acrylic acid) (PS-b-PAA) diblock copolymers were prepared by iodide-mediated radical polymerization. Firstly, free radical polymerization of styrene was carried out with AIBN as initiater and iodoform as chain-transfer agent, giving iodine atom-ended polystyrene with controlled molecular weights. Secondly, tert-butyl acrylate (tBA) was polymerization using above obtained polystyrenes as macro-chain-transfer agents and PS-b-PtBA diblock copolymers with controlled molecular weights were obtained. Finally, amphiphilic PS-b-PAA diblock copolymers were prepared by hydrolysis of PS-b-PtBA under the acid condition. The formation of PS-b-PtBA and PS-b-PAA diblock copolymers was confirmed by the use of gel permeation chromatography and H-1 NMR spectroscopy.

引用

页码：387 / 394

页数：8

共 39 条

[21] Narrow-polydispersity diblock and triblock copolymers of alkyl acrylates by a ''living'' stable free radical polymerization [J].