醇酯基有机硅改性聚氨酯液晶固定液的制备及性能研究  

Preparation and Research of Performance on Organic Silicon Polyurethane Liquid Crystal Polymer with Alcohol Ester Group as Stationary Phase

作　　者：江艳[1] 申书昌[1] 

机构地区：[1]齐齐哈尔大学化学与化学工程学院,黑龙江齐齐哈尔161006

出　　处：《化工时刊》2015年第5期7-10,共4页Chemical Industry Times

基　　金：黑龙江省教育厅面上项目(12541895)资助

摘　　要：本文以对苯二甲酸、氯化亚砜、1,4-丁二醇为原料制备了一种液晶基元——聚对苯二甲酸丁二醇酯,再与对苯二异氰酸酯、1,3-双(氨丙烷基)四甲基二硅醚反应制备了含醇酯基有机硅聚氨酯液晶聚合物。采用FT-IR表征其结构,XRD、TG-DSC研究了聚合物的液晶性质及热稳定性。将液晶聚合物作为气相色谱填充柱的固定液,测定该色谱柱的相对极性及取代苯位置异构体的色谱分离能力。A kind of liquid crystal basic unit which was called poly （butylene terephthalate） was synthesized from terephthalic, thionyl chloride and 1,4 - butanediol. And then the organic silicon polyurethane liquid crystal polymer with alcohol ester group was synthesized by 1,4 - phenylene diisocyanate, 3,3′- （ 1,1,3,3 - tetramethyldisilox- ane -1,3 -diyl）bispropylamine and poly（ butylene terephthalate）. The structure of the product was characterized by infrared spectroscopy method. The property of liquid crystal polymer was detected by X - ray diffractometer. The ther- mostability of liquid crystal polymer was studied by thermogravimetry and differential scanning calorimeter respectively. The column was filled with the liquid crystal polymer used as gas chromatography stationary liquid. Their relative polar was determined and the packed column was good for separating substituted benzene isomers.

关 键 词：醇酯基液晶聚合物 气相色谱 固定相 

分 类 号：O753.2[理学—晶体学]