申请人:Showa Denko K.K.
公开号:US05055225A1
公开(公告)日:1991-10-08
An optically active benzoic acid derivative represented by formula (I): ##STR1## wherein R represents a straight chain alkyl group having 6 to 14 carbon atoms; Q* represents an optically active branched chain alkyl group having an asymmetric carbon atom; and m and n each represents an integer of 0 or 1, provided that m is not 0 when n is 1, a process for the production thereof, and a liquid crystal device element using the same are disclosed. The benzoic acid derivative exhibits a chiral smectic phase over a wide temperature range, a large spontaneous polarization and a high speed response.
一种由式(I)表示的具有光学活性的苯甲酸衍生物:其中R代表具有6至14个碳原子的直链烷基基团;Q*代表具有一个手性碳原子的光学活性支链烷基基团;m和n分别表示0或1的整数,前提是当n为1时,m不为0,公开了其生产方法以及使用该衍生物的液晶器件元件。该苯甲酸衍生物在广泛的温度范围内表现出手性亚相、大的自发极化和高速响应。