Abstract
The effect of irradiation temperature on radiation induced degradation of poly(ethyl methacrylate) sample with a most probable distribution has been investigated. Chain scission yields, G( S), have been determined in the temperature interval of 0–140°C. The activation energy of chain scission was calculated to be 10.41±2.03 kJ/mol. No change in this value was observed when the glass transition temperature of 72°C was overcrossed. Low G( S) values determined at 120 and 140°C were explained to be due to unzipping reactions accompanying the main chain scissions.
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Schedule a callMore From: Radiation physics and chemistry (Oxford, England : 1993)
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