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Thermal and radio-oxidation of epoxy coatings

Article dans une revue avec comité de lecture
Author
GALANT, C
528389 EDF R&D [EDF R&D]
KUNTZ, M.
735 Plastes et différenciation cellulaire [PDC]
528389 EDF R&D [EDF R&D]
VERDU, Jacques
ccFAYOLLE, Bruno
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
14421 Laboratoire d'Ingénierie des Matériaux [LIM]

URI
http://hdl.handle.net/10985/17965
DOI
10.1016/j.porgcoat.2010.07.005
Date
2010
Journal
Progress in Organic Coatings

Abstract

Degradation induced by thermal (50-110 °C) and radio-oxidation of low T g epoxy-amine networks has been studied. It has been found that oxidation leads mainly to amide groups formation at the vicinity of tertiary amines whatever ageing conditions (thermal or radio-oxidation at 200 Gy h -1 ). In addition, some species as acids, peracids or formates have been revealed indicating a chain scission process. Physical modifications as T g decrease and soluble fraction increase due to chain scission process, have been correlated with chemical modifications.

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