Photoinduced alignment of nanocylinders by supramolecular cooperative motions

被引:251
作者
Yu, Haifeng [1 ]
Iyoda, Tomokazu [1 ]
Ikeda, Tomiki [1 ]
机构
[1] Tokyo Inst Technol, Chem Resources Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan
关键词
D O I
10.1021/ja064148f
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A linearly polarized laser beam was used to control nanocylinders self-assembled in an amphiphilic diblock liquid-crystalline copolymer consisting of flexible poly(ethylene oxide) as a hydrophilic block and poly(methacrylate) containing an azobenzene moiety in the side chain as a hydrophobic liquid-crystalline segment. The perfect array of poly(ethylene oxide) nanocylinders was achieved, aligned perpendicularly to the polarization direction of the actinic light by supramolecular cooperative motions between the ordered azobenzene and microphase separation. By the simple and convenient way of photocontrol, the macroscopic parallel patterning of nanocylinders can be easily obtained in an arbitrary area. Copyright © 2006 American Chemical Society.
引用
收藏
页码:11010 / 11011
页数:2
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