文献类型：期刊文献

中文题名：4-(2,3,5,6-四氟-烷基取代苯乙基)苯甲酸-4′-氟-4-联苯酯的合成及液晶性研究

英文题名：Synthesis and Mesomorphic Properties of 4′-Fluorobiphenyl4-yl-4-(2,3,5,6-Tetrafluoro-4-Alkylphenethyl)Benzoates

作者：孙冲[1];秦川[1];闻建勋[2]

机构：[1]华东理工大学化学与分子工程学院,上海200237;[2]上海天问化学有限公司,上海200232

年份：2011

卷号：26

期号：3

起止页码：267

中文期刊名：液晶与显示

外文期刊名：Chinese Journal of Liquid Crystals and Displays

收录：CSTPCD;;Scopus;北大核心:【北大核心2008】；CSCD:【CSCD_E2011_2012】；

语种：中文

中文关键词：含氟液晶;四氟苯基亚乙基;相变

外文关键词：liquid crystal; tetrafluorobenzene; bisubstituted ethane; phase transition

摘要：以2,3,4,5,6-五氟溴苯和脂肪醛为起始原料,设计并合成了一系列含四氟苯基亚乙基的四环酯类液晶化合物,通过偏光显微镜和DSC对其相变行为进行了研究。整个系列化合物有较宽的向列相温度范围,所合成的化合物中,随着末端碳链的增长,熔点和清亮点呈现下降趋势。
A series of 1,2-bisubstituted ethane＇s liquid crystals containing polyfluorophenyl group were synthesized from penta-fluorobromobenzene and aliphatic aldehydes.Their phase transition behaviours were studied by DSC and thermal polarizing microscopy.The results showed this series of compounds have high clearing point and wide temperature range of nematic phase.The phase transition temperature is lower when the alkyl chains of compounds become longer.