[ONN]-type amine pyridine(s) phenolate-based oxovanadium(v) catalysts for ethylene homo- and copolymerization
文献类型:期刊论文
作者 | Wang, Jia-Bao ; Lu, Ling-Pan ; Liu, Jing-Yu ; Li,Yue-Sheng |
刊名 | dalton transactions
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出版日期 | 2014 |
卷号 | 43期号:34页码:12926-12934 |
关键词 | EPSILON-CAPROLACTONE POLYMERIZATION OLEFIN POLYMERIZATION COMPLEXES BEARING (2-ANILIDOMETHYL)PYRIDINE LIGANDS (ARYLIMIDO)VANADIUM(V) COMPLEXES STRUCTURAL-CHARACTERIZATION SALICYLALDIMINATO LIGANDS VANADIUM(III) CATALYSTS SYNDIOTACTIC POLYMER ALUMINUM COCATALYST |
通讯作者 | li,ys |
英文摘要 | a series of oxovanadium(v) complexes containing amine pyridine(s) phenolate ligands [on n] (2a-f) have been synthesized in high yields (68-83%) by reacting vo((opr)-pr-n)3 with 1.0 equiv. of the ligands in ch2cl2. these complexes were characterized by h-1, c-13 and v-51 nmr spectroscopy and elemental analysis. x-ray structural analysis for 2a, 2c and 2d revealed that these complexes adopt a six-coordinate distorted octahedral geometry around the vanadium center in the solid state. upon treatment with et2alcl and ccl3cooet, these complexes displayed high catalytic activities for ethylene polymerization even at elevated reaction temperatures, depending on ligand structures. the resulting polymers possessed high molecular weight and unimodal molecular weight distributions, indicative of the formation of a single catalytically active species during the polymerization catalysis. excitingly, these vanadium(v) complexes could efficiently promote ethytene/norbornene copolymerization. the observed catalytic activity for the copolymerization was higher than that for ethylene homopolymerization. moreover, the molecular weights of the resulting copolymers increased upon increasing the norbornene feed. these results indicated that introducing a suitable amount of norbornene into the system not only could accelerate the polymerization rate but also could restrain chain transfer reactions to some extent. |
收录类别 | SCI |
语种 | 英语 |
公开日期 | 2015-10-27 |
源URL | [http://ir.ciac.jl.cn/handle/322003/57196] ![]() |
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 | Wang, Jia-Bao,Lu, Ling-Pan,Liu, Jing-Yu,et al. [ONN]-type amine pyridine(s) phenolate-based oxovanadium(v) catalysts for ethylene homo- and copolymerization[J]. dalton transactions,2014,43(34):12926-12934. |
APA | Wang, Jia-Bao,Lu, Ling-Pan,Liu, Jing-Yu,&Li,Yue-Sheng.(2014).[ONN]-type amine pyridine(s) phenolate-based oxovanadium(v) catalysts for ethylene homo- and copolymerization.dalton transactions,43(34),12926-12934. |
MLA | Wang, Jia-Bao,et al."[ONN]-type amine pyridine(s) phenolate-based oxovanadium(v) catalysts for ethylene homo- and copolymerization".dalton transactions 43.34(2014):12926-12934. |
入库方式: OAI收割
来源:长春应用化学研究所
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