Bis(Pyrazolyl)Pyridine Late Transition Metal Complexes as Single-Site Catalysts for Ethylene Polymerization to Highly Linear Polyethylene

被引：11

作者：

Abbo, Hanna S. ^{[1
]}

Titinchi, Salam J. J. ^{[1
]}

机构：

[1] Univ Western Cape, Dept Chem, ZA-7535 Cape Town, South Africa

来源：

CATALYSIS LETTERS | 2010年 / 139卷 / 3-4期

关键词：

Pyrazolyl pyridine ligand; Late transition metals; Ethylene polymerization; Linear polyethylene; ZIEGLER-NATTA CATALYSIS; OLEFIN POLYMERIZATION; ALPHA-OLEFINS; NICKEL(II) COMPLEXES; LIGANDS; PALLADIUM(II); IRON; OLIGOMERIZATION; COBALT(II); PROPYLENE;

D O I：

10.1007/s10562-010-0416-y

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The synthesis, characterization of the halide complexes LMX (n) (M = Co (1), Fe (2); X = Cl; n = 2); (M = Ni (3), X = Br, n = 2) bearing 2,6-bis(3,5-dimethylpyrazol-1-ylmethyl)pyridine ligand (L) and ethylene polymerization behaviour of these complexes are described. Complexes 1-3 display reasonable activity for ethylene polymerization on treatment with activated methylaluminoxane (MAO), produce single-site catalysts that polymerized ethylene to highly linear polyethylene (PE). Molecular weights (M (w)) of the polymers produced are in the range (0.7-1.4) x 10(6) g mol(-1) with relatively narrow molecular weight distribution (2.1-2.8).

引用

页码：90 / 96

页数：7

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