COPOLYMERIZATION OF ETHYLENE AND PROPYLENE BY CATIONIC SCANDIUM ALKYL CATALYST SYSTEM

	COPOLYMERIZATION OF ETHYLENE AND PROPYLENE BY CATIONIC SCANDIUM ALKYL CATALYST SYSTEM
	Li DF ; Li SH ; Wu CJ ; Yao CG ; Cui DM
刊名	acta polymerica sinica
	2013
期号	5 页码:649-653
关键词	ZIEGLER-NATTA CATALYSIS MONOMER SEQUENCE DISTRIBUTION LINEAR NONCONJUGATED DIENES METALLOCENE CATALYSTS ALPHA-OLEFINS ETHENE/PROPENE COPOLYMERIZATION STEREOSPECIFIC POLYMERIZATION METAL-CATALYSTS EPDM SYNTHESIS C-13 NMR
ISSN号	1000-3304
通讯作者	li df
中文摘要	the scandium dialkyl complex lsc (ch2sime3)(2) (l = (2, 6-ipr(2)c(6)h(3))nc(me)chpph2 n-(2, 6-me2c6h3)) activated with [ph3c] [b(c6f5)(4)] could initiate ethylene and propylene copolymerization with high activity (7. 5 x 10(5)g(pe) mol(-1) h(-1) (10(5) pa)(-1)) under the conditions of room temperature (30 degrees c) and atomphere pressure (1. 0 x 10(5) pa). the influence of comonomer feed content and polymerization temperature on activity and the composition of the copolymers using lsc (ch2sime3)(2)/[ph3c][b(c6f5)(4)] catalytic system were investigated. an increase in the initial propylene feed content leads to the increase in the incorporated propylene content of the resulting copolymer. at 30 degrees c, the highest activity and incorporation of propylene were achieved. determination of the reactivity ratios shows a much high reactivity for ethylene (r(e) = 29. 75 and r(p) = 0. 015). the resultant copolymers are elastomers having random sequence distibution of the two monomeric units evidenced by c-13-nmr spectroscopy and dsc analyses.
收录类别	SCI收录期刊论文
语种	中文
WOS记录号	WOS:000320297300009
公开日期	2014-04-15
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/49853]
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	Li DF,Li SH,Wu CJ,et al. COPOLYMERIZATION OF ETHYLENE AND PROPYLENE BY CATIONIC SCANDIUM ALKYL CATALYST SYSTEM[J]. acta polymerica sinica,2013(5):649-653.
APA	Li DF,Li SH,Wu CJ,Yao CG,&Cui DM.(2013).COPOLYMERIZATION OF ETHYLENE AND PROPYLENE BY CATIONIC SCANDIUM ALKYL CATALYST SYSTEM.acta polymerica sinica(5),649-653.
MLA	Li DF,et al."COPOLYMERIZATION OF ETHYLENE AND PROPYLENE BY CATIONIC SCANDIUM ALKYL CATALYST SYSTEM".acta polymerica sinica .5(2013):649-653.