Simultaneous cross-linking as a way to control physical growth of random ethylene-propylene copolymer during formation of high-impact polypropylene

	Simultaneous cross-linking as a way to control physical growth of random ethylene-propylene copolymer during formation of high-impact polypropylene
	Shi, Jianjun 1,2; Dong, Jin-Yong 1,2
刊名	POLYMER
	2016-02-24
卷号	85 页码:10-18
关键词	Polypropylene In-reactor alloy Synthesis and morphology control
英文摘要	An effective chemistry for controlling the physical growth of random ethylene-propylene copolymer (EPR) during formation of high-impact polypropylene (hiPP), i.e., PP/EPR in-reactor alloy, is proposed, by prompting EPR chains to be simultaneously cross-linked right during its polymerization. A sufficient degree of cross-linking in EPR effectively prevents its fleeing away from the catalyst fragments and into the pore network of pre-formed PP particles during the late E/P copolymerization of hiPP process, thus transforming EPR's dispersion morphology in PP particles from segregated droplet aggregates with mobility to catalyst fragment-adhered discrete particles with stability. This research not only contributes to the understanding of particle growth mechanism of hiPP but also provides a promising strategy for continuing innovating as well as expanding the scope of the industrially important in-reactor alloy technology. (C) 2016 Elsevier Ltd. All rights reserved.
收录类别	SCI
语种	英语
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/35805]
专题	化学研究所_工程塑料实验室
作者单位	1.Chinese Acad Sci, Inst Chem, CAS Key Lab Engn Plast, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Shi, Jianjun,Dong, Jin-Yong. Simultaneous cross-linking as a way to control physical growth of random ethylene-propylene copolymer during formation of high-impact polypropylene[J]. POLYMER,2016,85:10-18.
APA	Shi, Jianjun,&Dong, Jin-Yong.(2016).Simultaneous cross-linking as a way to control physical growth of random ethylene-propylene copolymer during formation of high-impact polypropylene.POLYMER,85,10-18.
MLA	Shi, Jianjun,et al."Simultaneous cross-linking as a way to control physical growth of random ethylene-propylene copolymer during formation of high-impact polypropylene".POLYMER 85(2016):10-18.