摘要
Two unsaturated liquid crystalline compounds based on diamine:N,N′-[oxybis(4,1-phenylene)]bis{4-[2-(allyloxy)ethoxy]benzamide} and N,N′-[methylenebis(4,1-phenylene)]bis{4-[2-(allyloxy)ethoxy]benzamide}were synthesized from 4,4′-diaminodiphenylether(DDE) and 4,4’-diaminodiphenylmethane(DDM),allyl-2-hydroxyethyl ether,4-hydroxy ethyl benzoate by the procedure of acylchlorination and esterification.The structures and liquid crystalline behaviours were investigated by DSC,FTIR,1H NMR,POM and XRD.The results showed that these compounds were all smectic phase and had a higher liquid temperature range,in which the melting points of two compounds were 240 and 220℃,respectively,and their clear points were all higher than 300℃.
Two unsaturated liquid crystalline compounds based on diamine ： N, N＇- [ oxybis （ 4,1 -phenylene ） ]bis 14- [ 2 - （aUyloxy） ethoxy ] benzamide ） and N, N＇- [ methylenebis （4,1 -phenylene） ]bis { 4- [ 2- （allyloxy） ethoxy ] benzamide } were synthesized from 4, 4＇-diaminodiphenylether （DDE） and 4,4＇ -diaminodiphenylmethane （ DDM ）, allyl-2-hydroxyethyl ether, 4-hydroxy ethyl benzoate by the procedure of acylchlorination and esterification. The structures and liquid crystalline behaviours were investigated by DSC, FrlR,1HNMR, POM and XRD. The results showed that these compounds were all smeetic phase and had a higher liquid temperature range,in which the melting points of two compounds were 240 and 220℃, respectively, and their clear points were all higher than 300℃.
出处
《化学研究与应用》
CAS
CSCD
北大核心
2010年第3期347-349,共3页
Chemical Research and Application
基金
河北省自然科学基金资助项目(B2005000108)
关键词
液晶
芳酰胺
对羟基苯甲酸乙酯
liquid crystal
arylamine
4-hydroxy ethyl benzoate
作者简介
联系人：刘秀英（1957-），女，高级实验师，主要从事有机化合物物理化学性能的研究。Email：liuxy@hbu．edu．cn
