文献类型：期刊文献

中文题名：香蕉形非手性铁电(反铁电)液晶

英文题名：Banana-shaped Achiral Ferroelectric (Antiferroelectric) Liquid Crystals

作者：沈冬[1];蔡良珍[2];沈晶伟[2]

机构：[1]华东理工大学化学物理研究室,上海200237;[2]华东理工大学化学系,上海200237

年份：2003

卷号：18

期号：6

起止页码：411

中文期刊名：液晶与显示

外文期刊名：Chinese Journal of Liquid Crystals and Displays

收录：CSTPCD;;Scopus;CSCD:【CSCD_E2011_2012】；

基金：教育部留学回国人员科研启动基金

语种：中文

中文关键词：液晶;香蕉形分子;铁电性;反铁电性;希夫碱类;脂类

外文关键词：liquid crystals;banana-shaped molecules; ferroelectricity; antiferroelectricity

摘要：香蕉形非手性液晶分子是近年来新发现的一类特殊的具有电光性能(铁电性、反铁电性)的液晶分子,这类分子由于具有独特的弯曲形状,表现出不同于棒状分子的液晶性能,尽管分子本身不含手性基团,但其极性排布形成铁电性(反铁电性),而且有很高的自发极化值。对已发现的铁电性(反铁电性)香蕉形化合物希夫碱类、酯类等的分子结构、特性及研究状况做了详细介绍。
The banana-shaped achiral liquid crystals discovered in recent years are a new kind of liquid crystals with electro-optical (ferroelectric, antiferroelectric) property. The molecules have distinct bent shape, show the mesomorphic properties differing from those of the calamitic molecules. Although the molecules are achiral, their polar arrangements form ferroelectricity (antiferroelctricity), and have high spontaneous polarizations. Till now, some series with Schiff-base or benzoate units have been found having ferroelectricity (antiferroelectricity). The molecular structures, properties and the research situation were introduced.