Organic sulfur compounds as initiators of polymerization. Part IV. Polymerization
of methyl methacrylate by S-(4-benzyl)phenyl thiobenzoate (in English)
On being light-irradiated, S-(4-benzoyl)phenyl thiobenzoate decomposes to yield benzoylphenylsulphonyl and benzoyl radicals. The decomposition of the photoinitiator occurs by a triplet mechanism. The radicals formed initiate and terminate the polymerization of methyl methacrylate. The molecular weights of the resulting polymer are inversely related to the initiator concentration. The photoinitiator does not polymerize styrene.
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