一种新型有机硅改性聚氨酯液晶的制备及其性能  

Research of preparation and performance on a new type of silicone modified polyurethane liquid crystal

作　　者：陈光[1] 申书昌[1] 王利鸿[1] 

机构地区：[1]齐齐哈尔大学分析测试中心,黑龙江齐齐哈尔161006

出　　处：《齐齐哈尔大学学报（自然科学版）》2014年第4期49-52,55,共5页Journal of Qiqihar University(Natural Science Edition)

摘　　要：以对苯二甲酸、氯化亚砜、对羟基苯甲酸、1,4-丁二醇为原料合成了一种具有反应活性的液晶基元—对苯二甲酰二氧苯甲酸丁二醇酯,再与2,4-甲苯二异氰酸酯与1,3-双(氨丙烷基)四甲基二硅醚合成的有机硅改性聚氨酯反应制成一种新型液晶聚合物。通过红外光谱法表征了产物的结构,通过热分析,考察了其分解温度和液晶态温度范围,并确定了此液晶聚合物作为气相色谱固定液的最高使用温度。以液晶聚合物作为气相色谱固定液制备了气相色谱柱填充柱,测定了该固定液的相对极性。A kind of liquid crystal basic unit with reaction activity which is called terephthaloyl dioxo benzoate butylene glycol was synthesized using terephthalic acid, thionyl chloride, 4-hydroxybenzoic acid, 1,4-butanediol as raw materials. A new type of silicone modified polyurethane liquid crystal polymer was synthesized by 2,4-toluene diisocyanate, 1,3-dis- （amino propaneyl） tetramethyl disiloxane and terephthaloyl dioxo benzoate butylene glycol. The structure of the product was characterized by IR method. The decomposition temperature and the temperature range of the liquid crystal were analyzed by TGA, the highest using temperature of liquid crystal polymers as gas chromatography stationary liquid was determined. The chromatography column was made by the liquid crystal polymer as chromatography stationary phase, the polarity of The chromatography column was investigated.

关 键 词：有机硅改性聚氨酯液晶 气相色谱固定相 使用温度 相对极性 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]