Photo-oxidation of polymers—Part V: A new chain scission mechanism in polyolefins |
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| Authors: | G Geuskens MS Kabamba |
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| Institution: | Université Libre de Bruxelles, Campus Plaine 206-1, Boulevard du Triomphe, B-1050 Brussels, Belgium |
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| Abstract: | The photo-oxidation of an ethylene-propylene copolymer has been studied at 310 and 365 nm. The results indicate that the Norrish type II reaction occurs but that another chain scission mechanism is also operative. This involves the reaction of free radicals produced by the photo-decomposition of hydroperoxide groups with neighbouring ketones. |
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