SUPERMOLECULAR STRUCTURE OF POLY-P-PHENYLENE TEREPHTHALAMIDE FILMS
聚对苯二甲酰对苯二胺取向态结晶的超分子结构

The supermolecular structure of poly-p-phenylene terephthalamide (PPTA) films has been studied by optical and scanning electron microscopy. The samples were prepared by coagulating crystallization from anisotropic solution of PPTA in 100% H2SO4 which were sheared and then relaxed for different time. Three kinds of morphological structures, spherulitie, shish-kebab and mat like domain aggregates were observed from sheared anisotropic solutions.