摘要
溴及苯基取代的对苯二甲酰氯分别与叔丁基对苯二酚及 2 ,2′ 二甲基 4 ,4′ 联苯二酚经熔融缩聚反应 ,可合成一类具有刚性棒状结构的热致性液晶聚酯。聚酯的热性质以 TGA、DSC、热台偏光显微镜研究。所有聚酯均具有较低的相转变温度 ,在普通的有机溶剂中具有较好的溶解性质。
Bromo and phenyl substituted terephthaloyl dichloride react respectively with t butylhydroquinone and 2,2′ dimethyl biphenyl 4,4′ diol by melt polycondensation, that can synthesize a kind of thermotropic LC polyesters, which have rigid, rodlike structures. The thermal properties of polyesters were investigated with TGA, DSC and polarizing microscope. All polyesters have low phase transition temperature, they have good solubilities in common organic solvents.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2000年第1期53-55,共3页
Polymer Materials Science & Engineering
关键词
对位联结
芳香聚酯
液晶
para linked
aromatic polyester
liquid crystal
