作者: Nobutaka Uchikawa , Tutomu Iwatani , Katsumi Takeuchi , Tadashi Asanuma , Tetsunosuke Shiomura
DOI:
关键词: Polymer chemistry 、 Polypropylene 、 Copolymer 、 Ethylene 、 Materials science 、 Tacticity
摘要: Disclosed herein is a polypropylene resin composition of high syndiotacticity comprising substantial homopolymer propylene, in which the ratio intensity peak attributable to syndiotactic pentad bonds sum intensities all peaks methyl groups spectrum measured by ¹³C-NMR 0.7 or more, and copolymer ethylene preparation process thereof.