Photopolymerization of methyl methacrylate using benzophenone-dimethylaniline combination as photoinitiator
1981; Elsevier BV; Volume: 17; Issue: 5 Linguagem: Inglês
10.1016/0014-3057(81)90016-1
ISSN1873-1945
Autores Tópico(s)Advanced Polymer Synthesis and Characterization
ResumoPhotopolymerization of MMA at 35° was studied using benzophenone (BP)-dimethylaniline (DMA) combination as photo-redox initiator. Initiator exponent was 0.13; monomer exponent was < 1.0 in chlorinated solvents and > 1.0 in other solvents. Photoreduction of BP by DMA is considered to produce chain-initiating radicals and analysis of kinetic data indicates this process to be solvent and monomer dependent. Chlorinated solvents are indicated to be much more reactive than other solvents. The photopolymerization is also characterized by significant primary radical termination.
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