A practical ethylene polymerization for vinyl-polyethylenes: synthesis, characterization and catalytic behavior of α,α′-bisimino-2,3:5,6-bis(pentamethylene)pyridyliron chlorides
Literature Information
Publication Date
2016-05-24
DOI
10.1039/C6PY00745G
Impact Factor
5.582
Authors
Shizhen Du, Xinxin Wang, Zygmunt Flisak, Yang Sun
View Original
Abstract
A series of α,α′-bis(arylimino)-2,3:5,6-bis(pentamethylene)pyridyliron chlorides was synthesized in a one-pot reaction and characterized by FT-IR and elemental analysis as well as X-ray crystallography for one representative iron complex, where the Fe center adopts a distorted square pyramidal geometry with three coordinating nitrogen and two chlorine atoms. The iron precatalysts, upon treatment with either methylaluminoxane (MAO) or modified methylaluminoxane (MMAO), exhibit high activities in the range of 107 g of PE per mol of Fe per h toward ethylene polymerization, yielding highly linear and, more importantly, vinyl-polyethylenes. The correlation between the structural features of iron complexes and their catalytic activities was also investigated.
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Source Journal
Polymer Chemistry
CiteScore:
8.6
Self-citation Rate:
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