The ESR technique was used to investigate the time evolution of a γ-irradiated model rubber (ethylene-propylene copolymer loaded with antioxidant containing NH functional group ). Measurements have been performed at different temperatures in the (77-333) K range. Two different kinds of radicals (polymer and NO°) have been identified and their activation energy, related to the post-irradiation behaviour, evaluated. The results suggested the formation of NO° through a bimolecular process. © 1993.
All Science Journal Classification (ASJC) codes
Baccaro, S., Buontempo, U., Caccia, B., Onori, S., & Pantaloni, M. (1993). Post-irradiation evolution of gamma produced radicals in ethylene- propylene rubber. Radiation Physics and Chemistry, 42(1-3), 241 - 244. https://doi.org/10.1016/0969-806X(93)90243-N