REVERSIBLE ALIGNMENT CHANGE OF LIQUID-CRYSTALS INDUCED BY PHOTOCHROMIC MOLECULAR FILMS .14. REGULATION OF ALIGNMENT OF CYANOBIPHENYL LIQUID-CRYSTALS BY AZOBENZENE MOLECULAR FILMS

被引：38

作者：

AOKI, K

TAMAKI, T

SEKI, T

KAWANISHI, Y

ICHIMURA, K

机构：

[1] TOKYO INST TECHNOL,RESOURCES UTILIZAT RES LAB,4259 NAGATSUTA,MIDORI KU,YOKOHAMA,KANAGAWA 227,JAPAN

[2] TODA KOGYO CORP,NAKA KU,HIROSHIMA 730,JAPAN

[3] RES INST POLYMERS & TEXTILES,TSUKUBA,IBARAKI 305,JAPAN

来源：

LANGMUIR | 1992年 / 8卷 / 03期

关键词：

D O I：

10.1021/la00039a045

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Photoresponsive cells of cyanobiphenyl-type liquid crystals were constructed using two quartz plates, the surfaces of which were modified with azobenzene (Az) derivatives through covalent bond(s). Reversible alignment changes of the liquid crystals in the nematic phase between parallel and homeotropic modes upon alternate exposure to UV and visible light were found to be crucially dependent on the molecular structure of the Az units on the quartz surface. The photoimages written in the nematic phase were fixed persistently in the smectic phase.

引用

页码：1014 / 1017

页数：4

共 13 条

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