Abstract
1. Data on the kinetics of geminal and bulk recombination of radical pairs formed in transfer of a hydrogen atom from 2,4,6-trimethylphenol to the triplet state of benzophenone in polyvinyl chloride films were obtained with the method of laser photolysis. 2. Bulk recombinatin of low-molecular-weight radicals makes the fundamental contribution to the kinetics of their quenching in films containing ≥50% liquid plasticizer and is characterized by high values of the second-order rate constants, close to the value of the rate constant of a diffusion-controlled reaction in low-viscosity liquids. 3. Geminal recombination of low-molecular-weight radicals in polyvinyl chloride films is characterized by polychromatic kinetics and makes a marked contribution with a concentration of plasticizer ≤60%.
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Schedule a callMore From: Bulletin of the Academy of Sciences of the USSR Division of Chemical Science
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