Bis(Pyrazolyl)Pyridine Late Transition Metal Complexes as Single-Site Catalysts for Ethylene Polymerization to Highly Linear Polyethylene
作者： Hanna S. Abbo , Salam J. J. Titinchi
DOI: 10.1007/S10562-010-0416-Y
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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 these are described. Complexes 1–3 display reasonable activity for on treatment with activated methylaluminoxane (MAO), produce single-site catalysts that polymerized to highly linear polyethylene (PE). Molecular weights (M w) polymers produced in range (0.7–1.4) × 106 g mol−1 relatively narrow molecular weight distribution (2.1–2.8).
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