Abstract
AbstractPeresters dissociate thermally to acyloxy and alkoxy radicals. Further, the acyloxy radicals may dissociate into a carbon radical and carbon dioxide. Alternatively the peresters may break into these products in a single stage reaction. The decompositions of tert‐butyl‐α.α‐diphenyl perpropionate and tert‐butyl percinnamate have been studied and it has been shown that whereas the former dissociates into the products in a single stage reaction, only 72–73% of tert‐butyl percinnamate dissociates by a single stage decomposition reaction and the rest isomerises to yield cinnamic acid.The polymerization rate of styrene, using tert‐butyl‐α.α‐diphenyl perpropionate as initiator at 60±1°C is proportional to the square root of the initiator concentration and the first power of the monomer concentration.
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