メタクリル酸メチルの重合におよぼすα-トコフェロールとその誘導体の影響

抄録

In air or in vacuo, photo- and thermal polymerization of methyl methacrylate (MMA) in the presence of α-tocopherol or its acetate were investigated. It was found that α-tocopherol inhibited the photopolymerization of MMA sensitized by benzoin ethyl ether and the thermal polymerization induced by benzoyl peroxide. On the other hand, it was confirmed that α-tocopherol acetate was able to initiate photopolymerization of MMA in the presence of oxygen. α-Tocopherol acetate acted as plasticizer and lowered glass transition temperature of the polymers. A fraction of α-tocopherol actate was presumed to be contained in the polymer chains from their spectral data.