文献类型：期刊文献

中文题名：含氟双酯类负性液晶的合成和性能(Ⅰ)——双-[对烷基(烷氧基)苯甲酸]-2-氟-对苯二酚酯类

英文题名：Preparation and Properties of Negative Liquid Crystals Ⅰ——2-Fluoto-p-phenylene-bis-[p-alkyl(alkoxy)benzoate]

作者：杨宏丽[1];奚关根[1]

机构：[1]华东化工学院化学系

年份：1993

期号：3

起止页码：5

中文期刊名：华东工学院学报

收录：CSCD:【CSCD_E2011_2012】；

基金：国家自然科学基金

语种：中文

中文关键词：对苯二酚;负性液晶;氟

外文关键词：2-fluorohydroquinone;negative liquid crystal;hydroquinone diester;p-alkyl benzoic acid;p-alkoxy benzoic acid

摘要：以邻氟苯酚为原料,合成了2-氟-1,4-对苯二酚。将其与对烷基(烷氧基)苯甲酸反应制得文题所述两个系列计6个液晶化合物。经红外光谱,核磁共振,质谱和元素分析确证其结构。测试了各化合物的介电各向异性、相变温度和相态等,证实这类液晶为负性液晶。
2-Fluorohydroquinone was synthesized from o-fluorophenol. Two series of six title compounds were prepared by the reac-tion of 2--fluorohydroquinone with p-alkyl benzoic acid or p-alkoxybenzoic acid. Their structure were examined by using IR, MS, NMRand element analysis. Their phase transition temperature, phasestates and dielectric anisotropy were determined. The results showedthat they were all negative liquid crystals.