Ethylene polymerization and ethylene/hexene copolymerizaion with vandium catalysts bearing thiophenolphosphine ligands

	Ethylene polymerization and ethylene/hexene copolymerizaion with vandium catalysts bearing thiophenolphosphine ligands
	Zhang SW ; Li YG ; Lu LP ; Li YS
刊名	chinese journal of polymer science
	2013
卷号	31 期号:6 页码:885-893
关键词	OPENING METATHESIS POLYMERIZATION OLEFIN POLYMERIZATION STRUCTURAL-CHARACTERIZATION SYNDIOTACTIC POLYMER ALUMINUM COCATALYST METAL-CATALYSTS COMPLEXES NORBORNENE PROPYLENE BEHAVIOR
ISSN号	0256-7679
通讯作者	li ys
中文摘要	vanadium(iii) complexes bearing thiophenol-phosphine ligands (2a-2b) (2-r-6-pph2-c6h2s) vcl2(thf)(2) (2a: r = h; 2b: r = me3si) were prepared from vcl3(thf)(3) by treating with 1.0 equiv of the ligand in tetrahydrofuran in the presence of excess triethylamine. the two complexes were characterized by ftir and mass spectra as well as elemental analyses. on activation with et2alcl, these complexes exhibited high catalytic activities (up to 22.1 kg pe/(mmol(v)center dot h center dot bar)) even at high temperature (70 a degrees c), and produced high molecular weight polymers with unimodal molecular weight distributions, indicating the polymerization took place in a single-site nature. this result may be attributed to benefits of introduction of second-row donor atoms for adjusting charge density of the vanadium centers. in addition, these complexes also exhibited high catalytic activities for ethylene/1-hexene copolymerization. catalytic activity, comonomer incorporation and polymer molecular weight can be controlled in a wide range by the variation of catalyst structure and the reaction parameters such as al/v molar ratio, comonomer feed concentration and polymerization reaction temperature.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000317985500005
公开日期	2014-04-15
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/49838]
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	Zhang SW,Li YG,Lu LP,et al. Ethylene polymerization and ethylene/hexene copolymerizaion with vandium catalysts bearing thiophenolphosphine ligands[J]. chinese journal of polymer science,2013,31(6):885-893.
APA	Zhang SW,Li YG,Lu LP,&Li YS.(2013).Ethylene polymerization and ethylene/hexene copolymerizaion with vandium catalysts bearing thiophenolphosphine ligands.chinese journal of polymer science,31(6),885-893.
MLA	Zhang SW,et al."Ethylene polymerization and ethylene/hexene copolymerizaion with vandium catalysts bearing thiophenolphosphine ligands".chinese journal of polymer science 31.6(2013):885-893.