Abstract
Abstract Photopolymerization of MMA in visible light was studied at 40 °C using DMF–SO2 complex as the photoinitiator. Initiator exponent was found to be 0.41 and monomer exponent varied between 1.12 to 1.50 depending on the nature of the solvent. Analysis of data revealed that the photopolymerization was induced by a free radical mechanism. Nonideality of the kinetics was explained on the basis of (a) monomer-dependent chain initiation and (b) initiator-dependent chain termination via degradative initiator transfer.
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