Polymerization of 1-ethynylcyclohexene by tungsten and molybdenum-based catalysts

1‐Ethynylcyclohexene, an acetylene derivative having cyclohexenyl substituent, was polymerized by various W‐ and Mo‐based catalysts. WCl6‐EtAlCl2 catalyst system was found to be very effective for this polymerization. The effects of the monomer‐to‐catalyst mol ratio, the initial monomer concentratio...

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Published in:Journal of polymer science. Part A, Polymer chemistry Polymer chemistry, 1995-01, Vol.33 (2), p.307-312
Main Authors: Gal, Yeong-Soon, Jung, Bal, Kim, Ji-Heung, Lee, Won-Chul, Choi, Sam-Kwon
Format: Article
Language:English
Subjects:
Applied sciences
conjugated polymer
Exact sciences and technology
Organic polymers
organoaluminum compounds
Physicochemistry of polymers
poly(1-ethynylcyclohexene)
Polymerization
Preparation, kinetics, thermodynamics, mechanism and catalysts
thermal property
transition metal catalysts
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Summary:1‐Ethynylcyclohexene, an acetylene derivative having cyclohexenyl substituent, was polymerized by various W‐ and Mo‐based catalysts. WCl6‐EtAlCl2 catalyst system was found to be very effective for this polymerization. The effects of the monomer‐to‐catalyst mol ratio, the initial monomer concentration, the temperature, and the cocatalysts for the polymerization of 1‐ethynylcyclohexene by WCl6 were investigated. The catalytic activity of Mo‐based catalysts was found to be similar to that of W‐based catalysts. The polymer structure was identified to have a conjugated polymer backbone carrying a cyclohexenyl substituent. The resulting polymers were light‐brown powder and completely soluble in aromatic and halogenated hydrocarbon solvents such as chlorobenzene, benzene, chloroform, carbon tetrachloride, etc. Studies of the thermal properties and morphology of poly(1‐ethynylcyclohexene) were also carried out. © 1995 John Wiley & Sons, Inc.
ISSN:0887-624X
1099-0518
DOI:10.1002/pola.1995.080330212