2-(1-(Arylimino)ethyl)-8-arylimino-5,6,7-trihydroquinolylcobalt dichloride: Synthesis and polyethylene wax formation

Sun, Wen Hua; Kong, Shaoliang; Chai, Wenbin; Shiono, Takeshi; Redshaw, Carl; Hu, Xinquan; Guo, Cunyue; Hao, Xiang

Abstract

A series of 2-(1-(arylimino)ethyl)-8-arylimino-5,6,7-trihydroquinolylcobalt dichloride (aryl = 2,6-R1-4-R2C6H2) pre-catalysts were synthesized and structurally characterized by FT-IR and elemental analyses. The molecular structures of Co1 (R1 = Me, R 2 = H), Co2 (R1 = Et, R2 = H) and Co5 (R 1 = Et, R2 = Me) were determined by single-crystal X-ray diffraction analysis, and confirmed Co1 as a distorted trigonal bipyramidal geometry at the metal, whilst in Co2 and Co5 the metal is square-pyramidal. Upon treatment with either MAO or MMAO, all cobalt pre-catalysts exhibited highest activities at 60 °C for ethylene polymerization. The resultant polyethylenes, under optimization reaction parameters, possessed low molecular weight (waxes) and narrow polydispersity. © 2012 Elsevier B.V.

Citation

Sun, W. H., Kong, S., Chai, W., Shiono, T., Redshaw, C., Hu, X., …Hao, X. (2012). 2-(1-(Arylimino)ethyl)-8-arylimino-5,6,7-trihydroquinolylcobalt dichloride: Synthesis and polyethylene wax formation. Applied catalysis. A, General, 447-448, 67-73. https://doi.org/10.1016/j.apcata.2012.09.011

• Journal Article Type: Article
• Acceptance Date: Sep 4, 2012
• Online Publication Date: Sep 15, 2012
• Publication Date: Dec 7, 2012
• Deposit Date: Jun 8, 2022
• Journal: Applied Catalysis A: General
• Print ISSN: 0926-860X
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 447-448
• Pages: 67-73
• DOI: https://doi.org/10.1016/j.apcata.2012.09.011
• Public URL: https://hull-repository.worktribe.com/output/3622141