General and kinetic aspects of radiochemical and thermal oxidation of a chlorosulfonated polyethylene

An unstabilised chlorosulphonated polyethylene was submitted to thermal ageing in the 110–150°C temperature range, and to radiochemical ageing with dose rates of 10–2500 Gy h −1 at 40, 50 and 90°C and integrated doses up to 100 kGy. Emphasis was put on oxidation kinetics studied by FTIR spectrophoto...

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Bibliographic Details
Published in:European polymer journal 1994-10, Vol.30 (10), p.1157-1164
Main Authors: Gueguen, V., Audouin, L., Pinel, B., Verdu, J.
Format: Article
Language:English
Subjects:
Applied sciences
Crosslinking and degradation
Exact sciences and technology
Physicochemistry of polymers
Polymers and radiations
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Summary:An unstabilised chlorosulphonated polyethylene was submitted to thermal ageing in the 110–150°C temperature range, and to radiochemical ageing with dose rates of 10–2500 Gy h −1 at 40, 50 and 90°C and integrated doses up to 100 kGy. Emphasis was put on oxidation kinetics studied by FTIR spectrophotometry. The results show that even under radiochemical ageing at low temperatures, decomposition of hydroperoxides cannot be neglected with regard to initiation of oxidation reactions. Kinetic models derived a very simply mechanistic scheme satisfy quite closely to experimental results.
ISSN:0014-3057
1873-1945
DOI:10.1016/0014-3057(94)90253-4