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Photopolymerization of methyl methacrylate using benzophenone-dimethylaniline combination as photoinitiator

✍ Scribed by P. Ghosh; Rita Ghosh

Publisher
Elsevier Science
Year
1981
Tongue
English
Weight
282 KB
Volume
17
Category
Article
ISSN
0014-3057

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✦ Synopsis

Photopolymerization 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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