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ESR study of mechanically destructed methyl methacrylate-maleic anhydride copolymer

✍ Scribed by J. Tiňo; J. Plaček; J. Pavlinec

Publisher
Elsevier Science
Year
1974
Tongue
English
Weight
275 KB
Volume
10
Category
Article
ISSN
0014-3057

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✦ Synopsis

Methyl methacrylate-maleic anhydride copolymers were destructed mechanically; their ESR spectra were studied over the range -50 ° to + 50 ° using three copolymers of different compositions. From theoretical spectra, radicals present in the system were identified at various temperatures; their decay was investigated. Radicals in the mechanically destructed copolymer were compared with those trapped in gamma-irradiated copolymer. At -50 ° in the copolymer destructed, some radicals are stabilized which do not occur in the gamma-irradiated copolymer; at room temperature, the differences between the spectra are not substantial.

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