Design and synthesis of a new ferroelectric liquid crystal family. Liquid crystals containing a nonracemic 2-alkoxy-1-propoxy unit
Design and synthesis of a new ferroelectric liquid crystal family. Liquid crystals containing a nonracemic 2-alkoxy-1-propoxy unit
复制标题
新型铁电液晶族的设计与合成。
DOI：
10.1021/ja00277a027
复制
发表时间：
1986
影响因子：
15
通讯作者：
F. Supon
中科院分区：
文献类型：
--
作者：
D. Walba;S. C. Slater;W. Thurmes;N. Clark;M. Handschy;F. Supon
报道了一类总结构为1的非外消旋液晶材料的合成及其相行为，该液晶材料的核心为苯甲酸苯酯，尾部为手性非外消旋2-烷氧基-1-丙氧基，由乙酸乙酯衍生。几种新材料在室温或近室温下具有单向铁电液晶（FLC）相。这些材料表现出任何已知FLC中最快的室温电光开关特性。讨论了非消旋倾斜近晶液晶相中的铁电极化现象。这一现象可能被认为是发生在液晶相中的一种新的分子识别。
The synthesis and phase behavior of a new class of nonracemic liquid crystal materials of general structure 1, possessing a phenyl benzoate core and chiral nonracemic 2-alkoxy-1-propoxy tail unit derived from ethyl acetate, are described. Several of the new materials possess monotropic ferroelectric liquid crystal (FLC) phases at or near room temperature. These materials exhibit the fastest room temperature electro-optical switching characteristics of any known FLC’s. A discussion of the ferroelectric polarization in nonracemic tilted smectic liquid crystal phases is given. It is suggested that thephenomenon may be considered in terms of a novel kind of molecular recognition occurring in the liquid crystal phase.