SHANGGUAN Yonggang, ZHENG Qiang, PENG Mao. A STUDY ON CRYSTALLINE STRUCTURE AND MORPHOLOGY FOR POLYPROPYLENE CATALLOYS[J]. Acta Polymerica Sinica, 2005,(3):389-392.
SHANGGUAN Yonggang, ZHENG Qiang, PENG Mao. A STUDY ON CRYSTALLINE STRUCTURE AND MORPHOLOGY FOR POLYPROPYLENE CATALLOYS[J]. Acta Polymerica Sinica, 2005,(3):389-392.DOI:
Crystalline morphology of polypropylene catalloys (PP-C) was studied by using polarized optical microscopy (POM) and wide-angle X-ray diffraction (WAXD) It was found that β-PP existed
in addition to α-PP
in the crystalline phase of PP-c. Crystallinity and the β-PP content for various PP-c were calculated The results revealed that the content of β-PP increased with the increase of the ethylene content in PP-c.whereas the crystallinity of PP-c gradually decreased.Compared with the isotactic polypropylene (iPP) crystallized at the same condition.the increase of ethylene content resulted in the variation of sphemlite growth and the decrease of crystalline perfection in PP-c.