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Acetamidine Complexes as Catalysts for Ethylene Polymerization by Carolina Valdebenito; María Teresa Garland; Raul Quijada; Rene Rojas is a Chemistry article available to read on EtoBox.

What is Acetamidine Complexes as Catalysts for Ethylene Polymerization about?

The reaction of (2,6-diisopropyl-phenyl)-acetimidoyl chloride or (2,6-dimethyl-phenyl)-acetimidoyl chloride with 2,6-dimethylaniline in the presence of triethylamine yields a mixture of isomers N 4). The structures of the ligands and nickel complexes have been determined by single crystal X-ray diffraction. The addition of MAO to these complexes generates catalytically active species for the homopolymerization of ethylene. The polymer products are high molecular weight (80-169 K). At temperatures of up to 60 °C both catalysts are a single site giving a monomodal molecular weight distribution. However, at 70 °C the mixture (3a + 3b) shows a bimodal molecular weight distribution.

Who reads Acetamidine Complexes as Catalysts for Ethylene Polymerization?

Author

Carolina Valdebenito; María Teresa Garland; Raul Quijada; Rene Rojas

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0022-328X)

Published

2009

Language

EN

Field

Chemistry (Physical Sciences)