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Radical copolymerization of methyl 2-norbornene-2-carboxylate and 2-phenyl-2-norbornene with styrene, alkyl acrylate, and methyl methacrylate: Facile incorporation of norbornane framework into polymer main chain and its effect on glass transition temperature |
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| Authors: | Eiji Ihara Shingo Honjyo Satoru Ishii Kenzo Inoue |
| Affiliation: | a Department of Material Science and Biotechnology, Graduate School of Science and Engineering, Venture Business Laboratory, Ehime University, 3 Bunkyo-cho, Matsuyama 790-8577, Japan b Research and Development Administration Department, Mitsubishi Rayon Co. Ltd., 1-6-41 Konan, Minato-ku, Tokyo 108-8506, Japan c Corporate Research Laboratories, Mitsubishi Rayon Co., Ltd. Otake, Hiroshima 739-0693, Japan |
| Abstract: | Radical copolymerization behavior of methyl 2-norbornene-2-carboxylate 1 and 2-phenyl-2-norbornene 2 was investigated. Radical copolymerization of 1 and 2 with styrene, alkyl acrylate, and methyl methacrylate in a variety of monomer combinations afforded copolymers, whose main chains consisted of norbornane framework. Relative monomer reactivity ratios for the copolymerization of 1 and 2 with n-butyl acrylate (n-BA) were determined by the Fineman-Ross method. Temperature-modulated DSC analysis for poly(1 or 2-co-n-BA)s revealed remarkable Tg-raising effect of incorporation of norbornane framework into the polymer main chain, compared to that effect of styrene repeating unit. |
| Keywords: | 2-Substituted norbornene Radical copolymerization Tg-raising effect |
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