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FAST SWITCHING FERROELECTRIC SIDE-CHAIN LIQUID-CRYSTALLINE POLYMER AND COPOLYMER

被引：50
作者：
NACIRI, J
PFEIFFER, S
SHASHIDHAR, R
机构：
[1] USN,RES LAB,CTR BIOMOLEC SCI & ENGN,CODE 6090,WASHINGTON,DC 20375
[2] GEORGETOWN UNIV,DEPT CHEM,WASHINGTON,DC 20057
[3] GEOCENTERS INC,FT WASHINGTON,MD 20744
来源：
LIQUID CRYSTALS | 1991年 / 10卷 / 04期
关键词：
D O I：
10.1080/02678299108036446
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
New ferroelectric side-chain liquid-crystalline polymers, a copolymer and a homopolymer, with siloxane backbone and a triaromatic mesogen as the side group have been synthesized. The materials exhibit a chiral smectic C phase over a large temperature range extending to room temperature. They possess high values of spontaneous polarization: 105 nC cm-2 for the homopolymer and 180 nC cm-2 for the copolymer. The electro-optic switching time in the chiral smectic C phase is extremely fast (150-mu-s). In the smectic A phase, an electroclinic effect with switching times less than 100-mu-s and with field induced tilt angles of 18-degrees is observed.
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收藏
页码：585 / 591
页数：7
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