Synthesis of azobenzene-containing diblock copolymers using atom transfer radical polymerization and the photoalignment behavior

被引：99

作者：

Cui, L

Zhao, Y ^{[1
]}

Yavrian, A

Galstian, T

机构：

[1] Univ Sherbrooke, Dept Chim, Sherbrooke, PQ J1K 2R1, Canada

[2] Univ Laval, Ctr Rech Sci & Ingn Macromol, Quebec City, PQ G1K 7P4, Canada

[3] Univ Laval, Dept Phys, Ctr Opt Photon & Lasers, St Foy, PQ G1K 7P4, Canada

来源：

MACROMOLECULES | 2003年 / 36卷 / 22期

关键词：

D O I：

10.1021/ma0351524

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A new series of liquid crystalline diblock copolymers composed of a polystyrene and a polymethacrylate with an azobenzene moiety in the side chain were synthesized through atom transfer radical polymerization and characterized by various techniques. Photoinduced birefringence of diblock copolymers and the azobenzene homopolymer was investigated and compared under different excitation conditions. The results show that the microdomain structures characteristic of diblock copolymers hinder the photoalignment of azobenzene mesogenic groups.

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页码：8246 / 8252

页数：7

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