通过介晶单体4,4′-双(6-羟己氧基)联苯(BHHBP)分别与对苯二甲酰氯(TPC)及4,4′-(对苯二甲酰氧基)二苯甲酰氯(TOBC)进行高温溶液缩聚反应合成了两种含介晶基团的半刚性共聚酯BHHBP/TPC与BHHBP/TOBC.利用DSC、TG-DTA、偏光显微镜(POM)和X射线衍射等手段对介晶单体BHHBP与共聚酯的相变行为以及共聚酯的热分解动力学及结晶性能进行了研究.结果表明,两共聚酯均为结晶性聚合物,其中BHHBP/TOBC具有向列相液晶相存在;共聚酯BHHBP/TPC与BHHBP/TOBC的热分解反应级数分别为3.6与3.1,反应活化能分别为78.9 kJ/mol与60.2 kJ/mol.
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