【摘要】 以对羟基苯甲酸甲酯、1,4丁二醇为主要原料,经熔融酯交换合成介晶基元双-对羟基苯甲酸丁二醇酯(BBHB);以四氯乙烷为溶剂,采用溶液缩聚法将BBHB与过量的对苯二甲酰氯(TPC)合成端基为TPC的液晶聚合物;再将液晶聚合物与对羟基偶氮苯磺酸反应制得端基为磺酸基的主链液晶离聚物.通过红外光谱分析其分子结构,用带热台的偏光显微镜观察其织态结构,确定为向列相纹影织构,并发现随着离子含量的增加,其液晶性逐渐消失.更多还原

【Abstract】 Bis(p-hydroxybenzonic acid butanediolate)(BBHB)as mesogenic unit was prepared with methyl p-hydroxybenzoate,1,4-butanediol and catalyst by melting transesterification.Then liquid crystalline polymer was synthesized with excessive terephthaloyl chloride and BBHB by solution polycodensation,using tetrachloroethane as solvent.Thermotropic main-chain liquid crystalline ionomers containing sulfornate groups was synthesized with liquid crystalline polymer and hydroxyl-azobenzensulfonic acid.This liquid crystalline ionomer was characterized by means of FTIR.Photographs of polarizing microscope show that this liquid crystalline ionomer is nematic liquid crystalline polymer.The liquid crystal properties are disappeared with increasing the content of ions.更多还原