Effects of molecular configuration of a chiral trimeric phenylene vinylene on its liquid crystalline properties

作     者：Ping Yu Zhen-Lin Zhang Lei Wang Chun-Luan Liu Shi-Min Liu Hai-Quan Zhang 

作者机构：State Key Laboratory of Metastable Materials Science and TechnologyYanshan University 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2013年第24卷第5期

页      面：397-400页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070305[理学-高分子化学与物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：supported by the National Natural Science Foundation of China(No.51173155) the Hebei Province Science Foundation of China(No.E2010001182) 

主　　题：Oligomer phenylene vinylene Configuration Liquid crystalline 

摘      要：Based on an analysis of the 1H NMR,FT-IR,UV-vis spectra,a chiral trimeric phenylene vinylene derivative（ChTPV） synthesized by a Wittig reaction was determined to have a trans-cis configuration, and it could be isomerized to the trans-trans isomer when treated with *** melting point of ChTPV with a trans-trans configuration increased by 162.1℃compared to the trans-cis isomer,and the ChTPV with trans-trans configuration exhibited the typical liquid-crystalline texture of the smectic A in the heating *** results indicated that the molecular configuration can influence the formation of the liquid crystalline phase of ChTPV.