Reactor blending of polyethylene with ethyl-bridged zirconocene catalyst and iron-based diimine complex

doi:10.1002/app.12682

CORC > 化学研究所 > 中国科学院化学研究所

	Reactor blending of polyethylene with ethyl-bridged zirconocene catalyst and iron-based diimine complex
	Guo, CY ; Ma, Z ; Zhang, MG ; Ke, YC ; Hu, YL
刊名	JOURNAL OF APPLIED POLYMER SCIENCE
	2003-11-07
卷号	90 期号:6 页码:1515-1518
关键词	Blending Polyethylene Metallocene Catalysts Transition Metal Chemistry
ISSN号	0021-8995
DOI	10.1002/app.12682
英文摘要	Blends of polyethylene (PE) were produced in a single reactor using a combination of {[(2-ArN=C(Me))(2)C5H3N]FeCl2} [Ar=2,6-2CH(3)(C6H4] and rac-Et(Ind)(2)ZrCl2. The experimental results showed that the PEs obtained have a broad molecular weight distribution (MWD) and both the molecular weight and the MWD can be regulated through changing the mole ratio of the two active sites. In addition, the polymerization activities decreased with the increase of the Fe/Zr mole ratio whereas the crystallinity of the PE obtained exhibited a contrary trend, decreasing as the Fe/Zr mole ratio went up. The morphology of the blends also directly relates to the Fe/Zr mole ratio, and more iron content in the bimetallic catalysts system gives rise to compact PEs of high crystallinity. This reflects that the reactor blends are morphology controllable as well and can be easily applied to present processing techniques because of adjustable molecular weights and their distribution. Differential scanning calorimetry, thermogravimetric analysis, gel permeation chromatography, and scanning electron microscopy were employed to characterize the properties of the reactor blends of PEs. (C) 2003 Wiley Periodicals, Inc.
语种	英语
出版者	JOHN WILEY & SONS INC
WOS记录号	WOS:000185522000009
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/80519]
专题	中国科学院化学研究所
通讯作者	Hu, YL
作者单位	1.Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Guo, CY,Ma, Z,Zhang, MG,et al. Reactor blending of polyethylene with ethyl-bridged zirconocene catalyst and iron-based diimine complex[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2003,90(6):1515-1518.
APA	Guo, CY,Ma, Z,Zhang, MG,Ke, YC,&Hu, YL.(2003).Reactor blending of polyethylene with ethyl-bridged zirconocene catalyst and iron-based diimine complex.JOURNAL OF APPLIED POLYMER SCIENCE,90(6),1515-1518.
MLA	Guo, CY,et al."Reactor blending of polyethylene with ethyl-bridged zirconocene catalyst and iron-based diimine complex".JOURNAL OF APPLIED POLYMER SCIENCE 90.6(2003):1515-1518.