申请人:Seiko Epson Corporation
公开号:US04723018A1
公开(公告)日:1988-02-02
2-phenylpyridine derivatives having the general formula: ##STR1## wherein Y is ##STR2## and Z is a straight chain alkyl group having from 1 to 16 carbon atoms, ##STR3## R' is a straight chain alkyl group having from 2 to 12 carbon atoms, R.sup.2 is a straight chain alkyl group having from 1 to 12 carbon atoms, n is an integer from 1 to 10 and * is an asymmetric carbon are provided. The derivatives are stable, have low viscosity, excellent electro-optical response properties and broaden the ferroelectric temperature range when added to ferroelectric liquid crystal compositions.
具有以下一般公式的2-苯基吡啶衍生物:其中Y为,Z为具有1至16个碳原子的直链烷基基团,R'为具有2至12个碳原子的直链烷基基团,R.sup.2为具有1至12个碳原子的直链烷基基团,n为1至10的整数,*为不对称碳。这些衍生物稳定,粘度低,具有优异的电光响应特性,并在添加到铁电液晶组合物中时扩展铁电温度范围。