Citation: MA Dezhu, LI Xiqiang, ZHANG Ruiyun, HONG Kunlun, LUO Xiaolie. CHARACTERISTICS OF STRUCTURE OF IMPACT COPOLYMERS OF POLYPROPYLENE WITH LOW ETHYLENE CONTENTS[J]. Chinese Journal of Polymer Science, ;1994, 12(2): 164-172. shu

CHARACTERISTICS OF STRUCTURE OF IMPACT COPOLYMERS OF POLYPROPYLENE WITH LOW ETHYLENE CONTENTS

Received Date: 11 February 1993

In the present work, the structure and impact properties of copolymers of polypropylenewith low ethylene contents have been investigated. Based on the results of 13C--NMR, FTIR,WAXD, DSC, PLM and SEM, the relationship between impact properties and morphology of thecopolymers has been discussed. The high impact properties of copolymer ICP2 may attribute tothe relatively higher ethylene content and homogeneous ethylene unit distribution. The size andits distribution of spherulite in the copolymers and cycloid cavitites dispersed in polypropylene continue phase may also be two important factors which affect the impact properties of these materials.
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