Weizhen Zhao
Controlling the ethylene polymerization parameters in iron pre-catalysts of the type 2-[1-(2,4-dibenzhydryl-6-methylphenylimino)ethyl]-6-[1-(arylimino) ethyl] pyridyliron dichloride
Zhao, Weizhen; Yu, Jiangang; Song, Shengju; Yang, Wenhong; Liu, Hao; Hao, Xiang; Redshaw, Carl; Sun, Wen Hua
Authors
Jiangang Yu
Shengju Song
Wenhong Yang
Hao Liu
Xiang Hao
Carl Redshaw
Wen Hua Sun
Abstract
The ligand series 2-[1-(2,4-dibenzhydryl-6-methylphenylimino)ethyl]-6-[1- (arylimino)ethyl]pyridines and the iron(II) chloride complexes thereof have been synthesized and characterized by elemental and spectroscopic analyses. The molecular structures of C1 and C2, determined by single-crystal X-ray diffraction analysis, confirmed a pseudo-square-pyramidal geometry at the iron center. Upon treatment with either MAO or MMAO, all iron pre-catalysts possessed good thermo-stability and exhibited high activities [up to 5.22 × 10 7 g mol-1(Fe) h-1] toward ethylene polymerization, producing highly linear polyethylene products. Optimization of the reaction parameters gave polyethylenes with narrow molecular weight distributions, indicating that single-site active species were formed; the molecular weights of the resultant polyethylenes could also be controlled.
Citation
Zhao, W., Yu, J., Song, S., Yang, W., Liu, H., Hao, X., Redshaw, C., & Sun, W. H. (2012). Controlling the ethylene polymerization parameters in iron pre-catalysts of the type 2-[1-(2,4-dibenzhydryl-6-methylphenylimino)ethyl]-6-[1-(arylimino) ethyl] pyridyliron dichloride. Polymer, 53(1), 130-137. https://doi.org/10.1016/j.polymer.2011.11.024
Journal Article Type | Article |
---|---|
Acceptance Date | Nov 15, 2011 |
Online Publication Date | Nov 22, 2011 |
Publication Date | Jan 5, 2012 |
Deposit Date | Jun 8, 2022 |
Journal | Polymer |
Print ISSN | 0032-3861 |
Publisher | Elsevier |
Peer Reviewed | Peer Reviewed |
Volume | 53 |
Issue | 1 |
Pages | 130-137 |
DOI | https://doi.org/10.1016/j.polymer.2011.11.024 |
Public URL | https://hull-repository.worktribe.com/output/3622298 |
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