Photochemical degradation study of an epoxy material by IR-ATR spectroscopy

Photochemical degradation of an epoxy resin (DGEBA) cross-linked with methyltetrahydrophthalic anhydride (MTHPA) was studied by means of FT-IR spectroscopy with attenuated total reflection (ATR). Using an identified absorption band as a reference, we obtained spectra that allowed us to detect the or...

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Bibliographic Details
Published in:Polymer degradation and stability 1998-01, Vol.62 (2), p.353-359
Main Authors: Monney, L, Belali, R, Vebrel, J, Dubois, C, Chambaudet, A
Format: Article
Language:English
Subjects:
Aging
Applied sciences
Crosslinking and degradation
Exact sciences and technology
Glass fiber reinforced plastics
Glass-epoxy composites
Infrared spectroscopy
Irradiation
Matrices (base phases)
Photodegradation
Photosensitivity
Physicochemistry of polymers
Polymers and radiations
Reaction mechanisms
Surface structure
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Summary:Photochemical degradation of an epoxy resin (DGEBA) cross-linked with methyltetrahydrophthalic anhydride (MTHPA) was studied by means of FT-IR spectroscopy with attenuated total reflection (ATR). Using an identified absorption band as a reference, we obtained spectra that allowed us to detect the organic matrix chemical modifications during photo-aging of the irradiated surface. Besides the fact that the thickness of the photo-oxidized layer can be estimated, molecular changes confirm some mechanisms which have been proposed in other literature.
ISSN:0141-3910
1873-2321
DOI:10.1016/S0141-3910(98)00018-4