Synthesis and mesomorphic properties of novel tolane-type liquid crystals  

作　　者：Dong Yu Zhao Qing Yong Meng Xiao Peng Cui Huai Yang 

机构地区：[1]Department of Materials Physics and Chemistry, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China

出　　处：《Chinese Chemical Letters》2009年第11期1283-1286,共4页中国化学快报（英文版）

基　　金：supported by National Natural Science foundation(No.20674005);Program of National High Technology 863 program of China(No.2006AA03Z108);National Key Technology Program(No.2007BAE31B00);Key Program for Panel Display of 863 program of China(No.2008AA03A318)

摘　　要：Two series of novel tolane-type liquid crystals （LCs） comprising of hydrogen-bonded organic acids were synthesized. The formation of dimerized H-bond LCs was confirmed by IR spectroscopy, and mesomorphic properties of the LCs were investigated by differential scanning calorimetry （DSC） and polarizing optical microscopy （POM）. It was found that the end groups of the liquid crystals as well as the unsaturated rigid core had effect on the mesomorphic properties.Two series of novel tolane-type liquid crystals （LCs） comprising of hydrogen-bonded organic acids were synthesized. The formation of dimerized H-bond LCs was confirmed by IR spectroscopy, and mesomorphic properties of the LCs were investigated by differential scanning calorimetry （DSC） and polarizing optical microscopy （POM）. It was found that the end groups of the liquid crystals as well as the unsaturated rigid core had effect on the mesomorphic properties.

关 键 词：TOLANE Hydrogen-bonded liquid crystal Mesomorphic properties SYNTHESIS 

分 类 号：O753.2[理学—晶体学] TQ221.242[化学工程—有机化工]