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The photo-oxidation of EPDM rubber: Part II—The photo-initiation process

✍ Scribed by Eliana Rezende Duek; Valmir F. Juliano; Marilê Guzzo; C. Kascheres; Marco-A. De Paoli


Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
541 KB
Volume
28
Category
Article
ISSN
0141-3910

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The initiation of polystyrene photo-oxidation has been studied and the quantum yield of initiation (~PR') for u.v.-irradiation at 315 K in the presence of atmospheric oxygen has been found to be 10 -3. Using ESR spectra, five distinct free radicals have been found; their nature depends on the wave l