PREPARATION OF ELECTROOPTICAL ACTIVE LIQUID-CRYSTAL MICRODOMAINS BY THE SOL-GEL PROCESS

被引：41

作者：

LEVY, D ^{[1
]}

SERNA, CJ ^{[1
]}

OTON, JM ^{[1
]}

机构：

[1] ETSI TELECOMUNICAC,DEPT TECNOL FOTON,E-28040 MADRID,SPAIN

来源：

MATERIALS LETTERS | 1991年 / 10卷 / 9-10期

关键词：

D O I：

10.1016/0167-577X(91)90242-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Thin films containing liquid crystal droplets have been prepared by trapping of a solution of commercial mixture Phase 5 in a polymerizing ethyl-triethoxysilane. These films show sensible optical response to external electrical fields and temperature. Droplet sizes vary from almost-equal-to 0.5 to 3-mu-m. The microdomain orientation is related to an ordering effect of the liquid crystal director produced by the ethyl groups at the walls of the pores. Reversible nematic liquid crystal arrow-pointing-both-left-and-right isotropic liquid phase transitions are also observed by evolution of laser diffraction patterns and by heating in a microscope plate between crossed polarizers.

引用

页码：470 / 476

页数：7

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