Self-Assembly and Photoresponsive Behavior of Amphiphilic Diblock Copolymers Containing Azobenzene Moieties

被引：8

作者：

Lin, Li ^{[1
]}

Feng, Ze ^{[1
]}

Yu, Qianli ^{[1
]}

Yan, Zeng ^{[1
]}

Yen, Chu-Chun ^{[1
]}

Yu, Yanlei ^{[1
]}

机构：

[1] Fudan Univ, Dept Mat Sci, Shanghai 200433, Peoples R China

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2009年 / 508卷

基金：

中国国家自然科学基金;

关键词：

amphiphilic block copolymer; azobenzene; microvesicle; photodeformation; self-assembly; LIQUID-CRYSTALLINE ELASTOMERS; BLOCK-COPOLYMERS; POLYMER VESICLES; LIGHT; ACTUATORS; MICELLES; SYSTEMS; FUSION; CHAIN;

D O I：

10.1080/15421400903060870

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An amphiphilic diblock copolymer, poly(ethylene oxide)-block-poly {6-[4-(4-ethoxyphenylazo) phenoxy] hexyl methacrylate}, was synthesized using atom transfer radical polymerization. In the solution of tetrahydrofuran and water, the diblock copolymer formed micrometer scale vesicles by self-assembly. Under the irradiation of UV light at 365 nm, these microvesicles generated such photoresponsive behavior as photoinduced expansion, swelling and fusion due to trans-cis photoisomerization of azobenzene units. The self-assembled vesicles even enlarged to be about five times their original size because of photoinduced fusion.

引用

页码：214 / 225

页数：12

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