Skip to main content

2-[1-(2,4-Dibenzhydryl-6-methylphenylimino)ethyl]-6-[1-(arylimino)ethyl]pyridylcobalt(ii) dichlorides: Synthesis, characterization and ethylene polymerization behavior

Lai, Jingjuan; Zhao, Weizhen; Yang, Wenhong; Redshaw, Carl; Liang, Tongling; Liu, Yongwen; Sun, Wen-Hua

Authors

Jingjuan Lai

Weizhen Zhao

Wenhong Yang

Profile Image

Professor Carl Redshaw C.Redshaw@hull.ac.uk
Professor of Inorganic Materials Chemistry and REF Lead for Chemistry

Tongling Liang

Yongwen Liu

Wen-Hua Sun



Abstract

A series of cobalt(ii) dichloride complexes ligated by 2-[1-(2,4- dibenzhydryl-6-methylphenylimino) ethyl]-6-[1-(arylimino)ethyl] pyridines was synthesized and characterized by FT-IR spectroscopy and elemental analysis. The molecular structure of the representative complex Co4 (R1 = Me, R2 = Me) was confirmed as pseudo square-pyramidal geometry at cobalt by single-crystal X-ray diffraction. Upon treatment with the co-catalysts MAO or MMAO, all cobalt pre-catalysts exhibited high activities up to 1.81 × 10 7 g PE mol -1 (Co) h -1 in ethylene polymerization, and produced polyethylene products with molecular weights in the tens of thousands and narrow molecular weight distributions. The influence of the reaction parameters and nature of the ligands on the catalytic behavior of the title cobalt complexes was investigated. © 2012 The Royal Society of Chemistry.

Journal Article Type Article
Publication Date 2012
Journal POLYMER CHEMISTRY
Print ISSN 1759-9954
Electronic ISSN 1759-9962
Publisher Royal Society of Chemistry
Peer Reviewed Peer Reviewed
Volume 3
Issue 3
Pages 787
APA6 Citation Lai, J., Zhao, W., Yang, W., Redshaw, C., Liang, T., Liu, Y., & Sun, W. (2012). 2-[1-(2,4-Dibenzhydryl-6-methylphenylimino)ethyl]-6-[1-(arylimino)ethyl]pyridylcobalt(ii) dichlorides: Synthesis, characterization and ethylene polymerization behavior. Polymer chemistry, 3(3), 787. doi:10.1039/c2py00590e
DOI https://doi.org/10.1039/c2py00590e
Keywords Organic Chemistry; Biochemistry; Bioengineering; Polymers and Plastics
Publisher URL http://pubs.rsc.org/en/Content/ArticleLanding/2012/PY/c2py00590e#!divAbstract
;