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A study of the vinyl polymerization initiated by the system dimethylaniline N‐oxide (DMAO) in conjunction with tosyl chloride (TsCl) has been performed. According to the kinetic results of the polymerization of methyl methacrylate (MMA) and of the copolymerization of MMA with styrene, the polymerization proceeds via a radical mechanism. The rate of polymerization is given by the following equation: equation image and the overall activation energy was calculated to be 14.3 kcal · mole−1. According to the UV spectrum, the poly‐MMA obtained probably contains N‐methylanilinomethyl end groups. A graft polymer was obtained by polymerization of MMA with DMAO and partially chlorosulfonated polyethylene (Hypalon‐30). From the results an initiation mechanism is proposed and discussed.
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Sato et al. (1972) studied this question.
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