Investigation of the effect of branched structure on the performances of the copolymers synthesized from ethylene and alpha-olefin with rac-Et(Ind)(2)ZrCl2/MMAO catalyst system

	Investigation of the effect of branched structure on the performances of the copolymers synthesized from ethylene and alpha-olefin with rac-Et(Ind)(2)ZrCl2/MMAO catalyst system
	Pan L ; Liu YG ; Zhang KY ; Bo SQ ; Li YS
刊名	polymer
	2006
卷号	47 期号:4 页码:1465-1472
关键词	SIZE-EXCLUSION CHROMATOGRAPHY MECHANICAL-PROPERTIES MOLECULAR-WEIGHT RHEOLOGICAL CHARACTERIZATION METALLOCENE CATALYSTS POLYMERIZATION 1-OCTADECENE POLYMERS CP(2)ZRCL(2)/MAO POLYPROPYLENE
ISSN号	0032-3861
通讯作者	li ys
中文摘要	the branched copolymers prepared from ethylene and alpha-olefins using rac-et(ind)(2)zrcl2/mmao catalyst system were studied. both the absolute molecular weight ((m) over bar (w)) and the molecular size (radius of glyration, r-g) of the polymers eluting from gel permeation chromatography (gpc) columns were obtained simultaneously via a high temperature gpc coupled with a two-angle laser light scattering (talls) detector. the branched structures and performances of the copolymers display approximate molecular weight and molecular sizes were investigated. wide angle x-ray diffraction analyses indicate that 16-carbon side branch could co-crystallize effectively with backbone chain at low alpha-olefin incorporation. the melt behaviors of the copolymers were studied by dynamic rheological measurements. both branch length and comonomer content affect considerably the loss modulus, storage modulus and complex viscosity of the copolymers. the relationship between the dynamic-mechanical behavior and the comonomer content of the copolymers was also examined by dynamic-mechanical experiments.
收录类别	SCI
语种	英语
WOS记录号	WOS:000235522900061
公开日期	2010-08-17
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/16213]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Pan L,Liu YG,Zhang KY,et al. Investigation of the effect of branched structure on the performances of the copolymers synthesized from ethylene and alpha-olefin with rac-Et(Ind)(2)ZrCl2/MMAO catalyst system[J]. polymer,2006,47(4):1465-1472.
APA	Pan L,Liu YG,Zhang KY,Bo SQ,&Li YS.(2006).Investigation of the effect of branched structure on the performances of the copolymers synthesized from ethylene and alpha-olefin with rac-Et(Ind)(2)ZrCl2/MMAO catalyst system.polymer,47(4),1465-1472.
MLA	Pan L,et al."Investigation of the effect of branched structure on the performances of the copolymers synthesized from ethylene and alpha-olefin with rac-Et(Ind)(2)ZrCl2/MMAO catalyst system".polymer 47.4(2006):1465-1472.