ESR investigations on irradiated polystyrene

Electron spin resonance investigations on the free radicals generated in polystyrene by gamma irradiation, in the temperature range 300–460 K, are reported. Assuming the competition between first and second order recombination processes, the isothermal decay of free radicals has been accurately fitt...

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Published inNuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Vol. 208; no. Complete; pp. 390 - 394
Main Authors Chipara, M., Benson, R., Chipara, M.D., Reyes, J.R.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.08.2003
Subjects
Diffusion
Electron spin resonance
Free radicals
Glass transition
Irradiation
Glass transition
Free radicals
Electron spin resonance
Irradiation
76.30.Rn
61.82.Pv
64.70.Pf
Diffusion
82.35.−x
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Summary:Electron spin resonance investigations on the free radicals generated in polystyrene by gamma irradiation, in the temperature range 300–460 K, are reported. Assuming the competition between first and second order recombination processes, the isothermal decay of free radicals has been accurately fitted. It is proved that both the first and the second order isothermal reaction rates are well described by a Vogel–Fulcher–Tamman–Arrhenius equation.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0168-583X
1872-9584
DOI:10.1016/S0168-583X(03)00669-4