Thermo-stable 2-(arylimino)benzylidene-9-arylimino-5,6,7,8-tetrahydro cyclohepta[b]pyridyliron(II) precatalysts toward ethylene polymerization and highly linear polyethylenes

	Thermo-stable 2-(arylimino)benzylidene-9-arylimino-5,6,7,8-tetrahydro cyclohepta[b]pyridyliron(II) precatalysts toward ethylene polymerization and highly linear polyethylenes
	Zhang, Youfu 1,2,3; Suo, Hongyi 2,3,4; Huang, Fang 1,2,3; Liang, Tongling 2,3; Hu, Xinquan 1; Sun, Wen-Hua2,3,4,5
刊名	JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
	2017-03-01
卷号	55 期号:5 页码:830-842
关键词	Bis(Imino)Pyridyliron(Ii) Precatalysts Ethylene Polymerization Linear Polyethylene Low-molecular Weight Polyethylene Thermo-stability
英文摘要	A series of 2-(arylimino)benzylidene-9-arylimino-5,6,7,8-tetrahydrocyclohepta[b]pyridyliron(II) chlorides was synthesized and characterized using FT-IR and elemental analysis, and the molecular structures of complexes Fe3 and Fe4 have been confirmed by the single-crystal X-ray diffraction as a pseudo-square-pyramidal or distorted trigonal-bipyramidal geometry around the iron core. On activation with methylaluminoxane (MAO) or modified methylaluminoxane (MMAO), all iron precatalysts exhibited high activities toward ethylene polymerization with a marvelous thermo-stability and long lifetime. The Fe4/MAO system showed highest activity of 1.56 x 10(7) gPE.mol(-1)(Fe).h(-1) at 70 degrees C, which is one of the highest activities toward ethylene polymerization by iron precatalysts. Even up to 80 degrees C, Fe3/MAO system still persist high activity as 6.87 x 10(6) g(PE).mol(-1)(Fe).h(-1), demonstrating remarkable thermal stability for industrial polymerizations (80-100 degrees C). This was mainly attributing to the phenyl modification of the framework of the iron precatalysts. (C) 2016 Wiley Periodicals, Inc.
语种	英语
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/38238]
专题	化学研究所_工程塑料实验室
作者单位	1.Zhejiang Univ Technol, Coll Chem Engn, Hangzhou 310014, Zhejiang, Peoples R China 2.Chinese Acad Sci, Key Lab Engn Plast, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Beijing 100190, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Youfu,Suo, Hongyi,Huang, Fang,et al. Thermo-stable 2-(arylimino)benzylidene-9-arylimino-5,6,7,8-tetrahydro cyclohepta[b]pyridyliron(II) precatalysts toward ethylene polymerization and highly linear polyethylenes[J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,2017,55(5):830-842.
APA	Zhang, Youfu,Suo, Hongyi,Huang, Fang,Liang, Tongling,Hu, Xinquan,&Sun, Wen-Hua.(2017).Thermo-stable 2-(arylimino)benzylidene-9-arylimino-5,6,7,8-tetrahydro cyclohepta[b]pyridyliron(II) precatalysts toward ethylene polymerization and highly linear polyethylenes.JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,55(5),830-842.
MLA	Zhang, Youfu,et al."Thermo-stable 2-(arylimino)benzylidene-9-arylimino-5,6,7,8-tetrahydro cyclohepta[b]pyridyliron(II) precatalysts toward ethylene polymerization and highly linear polyethylenes".JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 55.5(2017):830-842.