Abstract

The radiation stability of ethylene–propylene terpolymer (EPDM) was studied. The oxygen uptake method was used for determination of radiochemical effects induced in the polymer during its exposure to γ-radiation (doses 50, 100, 150, 200, 250, 350 and 500 kGy) in air at room temperature. Three temperatures (170, 180 and 190°C) were selected for oxidation measurements for assessing radiation stability of the EPDM. A derivative method was applied for the assessment of scission and crosslinking contributions at different γ-exposures.

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