Réactions primaires de dégradation oxydante au cours de l'autoxydation du poly(oxytétraméthylène) à 25°C, 3 Cinétique de la production des coupures statistiques et caractérisation de la réaction bimoléculaire non terminante des radicaux peroxyles secondaires
✍ Scribed by Thomassin, Claude ;Marchal, Jean
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1977
- Weight
- 488 KB
- Volume
- 178
- Category
- Article
- ISSN
- 0025-116X
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✦ Synopsis
Abstract
The kinetics of the production of random chain scissions by oxidative degradation of poly(oxytetramethylene) was determined during the radiation‐induced autoxidation of solutions of the polymer in chloroform at 25°C. Ethylene oxide resulting from autoxidation of ethylene produced by unimolecular decomposition of alkoxy‐1 alkylperoxy radicals partly inhibits the chain scission. This property allowed the characterization of the existence of a second primary mechanism of oxidative degradation of the polymer as non‐terminating bimolecular reaction of these peroxy radicals followed by a ß‐scission of the produced alkoxy radicals.