Polymerization of Cyclohexene Oxide By Organoaluminum Compounds |
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| Authors: | Yeong-Soon Gal Bal Jung Won-Chul Lee Sam-Kwon Choi |
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| Institution: | 1. Agency for Defense Development 4-4-5 , P.O. Box 35, Yuseung, 305-600, Taejon, Korea;2. Department of Textile Engineering , Kyungpook Sanup University , Taegu, 701-702, Korea;3. Department of Chemistry Korea Advanced , Institute of Science and Technology , Taejon, 305-701, Korea |
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| Abstract: | Abstract The polymerization of cyclohexene oxide (CHO) by various organoaluminum compounds such as R3Al (R = Me, Et, i-Bu), Et2AlCl, and EtAlCl2 is reported. Ethyl-substituted aluminum compounds were found to be very effective for this polymerization. As more chlorine atom is substituted on the aluminum atom, the polymer yield was increased though the molecular weight was decreased. The polymer yields at varying monomer-to-catalyst mole ratios (M/C) were similar (80–93%). The temperature and solvent effect for the present polymerization were also studied. The present poly(CHO) was a less stereoregular (atactic) isomer, regardless of catalysts and polymerization conditions. The resulting poly(CHO) was a white powder ad was soluble in aromatic and halogenated hydrocarbon solvents such as benzene, chlorobenzene, CCl4, chloroform, etc. |
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