MORPHOLOGY OF A THERMOTROPIC AROMATIC POLYESTER  

作　　者：陈寿羲 金永泽 徐懋 

机构地区：[1]Institute of Chemistry, Academia Sinica, Beijing, 100080

出　　处：《Chinese Journal of Polymer Science》1992年第2期158-163,共6页高分子科学（英文版）

摘　　要：The crystalline morphology of a thermotropic aromatic polyester has been studied by microscopy techniques. Spherulites with ringed structure under polarizing micioscope were observed for solution cast specimens, They were composed of radially growing crystalline lamellae of thickness around 100. It was found that the molecules were packed in the thickness direction. Banded texture was observed in randomly packed domains for melt cast specimens. The bands have the same width and internal structure as those usually observed in oriented specimens of these polymers obtained by shearing their mesomorphic melt.The crystalline morphology of a thermotropic aromatic polyester has been studied by microscopy techniques. Spherulites with ringed structure under polarizing micioscope were observed for solution cast specimens, They were composed of radially growing crystalline lamellae of thickness around 100. It was found that the molecules were packed in the thickness direction. Banded texture was observed in randomly packed domains for melt cast specimens. The bands have the same width and internal structure as those usually observed in oriented specimens of these polymers obtained by shearing their mesomorphic melt.

关 键 词：SPHERULITE Schlieren texture Banded texture Nematic Phase aromatic polyester. 

分 类 号：O63[理学—高分子化学]