Well-defined phosphino-phenolate neutral nickel(II) catalysts for efficient (co)polymerization of norbornene and ethylene

	Well-defined phosphino-phenolate neutral nickel(II) catalysts for efficient (co)polymerization of norbornene and ethylene
	Zhang, Yan-Ping 1,2; Li, Wei-Wei 1,2; Li, Bai-Xiang 1; Mu, Hong-Liang 1; Li, Yue-Sheng 1,3
刊名	DALTON TRANSACTIONS
	2015
卷号	44 期号:16 页码:7382-7394
英文摘要	Phosphino-phenolate neutral nickel catalysts 1-3/B(C6F5)(3), without the help of any organoaluminum compound, were found to be efficient catalytic systems for norbornene polymerization and its copolymerization with norbornene derivatives. The amount of B(C6F5)(3) required for achieving a high efficiency (3 equiv.) was markedly lower compared to previous reports, and high molecular weight polymers were obtained (>10(6) g mol(-1)). Efficient incorporation of polar monomers NBC, NBA, and NBM was also achieved in a controllable fashion, yielding high molecular weight copolymers. Catalysts 1-3 were highly active for ethylene polymerization as single component catalysts, with an activity of up to 10(7) g mol(Ni)(-1) h(-1), and catalyst 3 was more readily initiated at lower temperature. Catalysts 1-3 were also efficient in incorporating norbornene (up to 30%) into the polyethylene backbone. Bisligated phosphino-phenolate nickel complex 4 and salicylaldimine complex 5 were also studied for comparison, which further verified the unique performance of catalysts 1-3. Preliminary NMR analyses were conducted to explore the norbornene polymerization mechanism.
收录类别	SCI
语种	英语
公开日期	2015-11-03
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/28654]
专题	化学研究所_高分子物理与化学实验室
作者单位	1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Univ Chinese Acad Sci, Changchun Branch, Changchun 130022, Peoples R China 3.Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yan-Ping,Li, Wei-Wei,Li, Bai-Xiang,et al. Well-defined phosphino-phenolate neutral nickel(II) catalysts for efficient (co)polymerization of norbornene and ethylene[J]. DALTON TRANSACTIONS,2015,44(16):7382-7394.
APA	Zhang, Yan-Ping,Li, Wei-Wei,Li, Bai-Xiang,Mu, Hong-Liang,&Li, Yue-Sheng.(2015).Well-defined phosphino-phenolate neutral nickel(II) catalysts for efficient (co)polymerization of norbornene and ethylene.DALTON TRANSACTIONS,44(16),7382-7394.
MLA	Zhang, Yan-Ping,et al."Well-defined phosphino-phenolate neutral nickel(II) catalysts for efficient (co)polymerization of norbornene and ethylene".DALTON TRANSACTIONS 44.16(2015):7382-7394.