Abstract
The photopolymerization of methyl methacrylate (MMA) with N-benzyl-pyridinium bromide (BPB) and chloride (BPC) in the presence of carbon tetrachloride and 1,2-dibromoethane was carried out in dichloromethane and the accelerating effect of the haloalkanes on the photopolymerization was studied according to the spectroscopic and kinetic methods. In the absence of haloalkane, BPC photodecomposed to the N-benzylpyridinyl radical and halogen atom as well as BPB. The halogen atom initiated the polymerization, but the N-benzylpyridinyl radical contributed to its termination rather than initiation. When carbon tetrachloride and 1,2-dibromoethane were added to the polymerization system, they reacted rapidly with the N-benzylpyridinyl radical to reproduce BPC and BPB, respectively.
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References
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Tabuchi, K., Sakota, N. Photopolymerization of Methyl Methacrylate with N-Benzyl-pyridinium Bromide and Chloride in the Presence of 1,2-Dibromoethane and Carbon Tetrachloride. Polym J 15, 569–575 (1983). https://doi.org/10.1295/polymj.15.569
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DOI: https://doi.org/10.1295/polymj.15.569