Аннотация:Dynamic mechanical relaxation spectroscopy is used to study the effect ultraviolet exposure has onthe temperature dependence of the frequency of the vibrational relaxation in highly elastic polyacrylate localized on different metal substrates. The polymer modulus defect that characterizes the inelastic properties of the elastomer is calculated. It is shown to grow in non-irradiated and UV-irradiated polymers when they are localized on substrates in the series copper–brass–aluminum, testifying to the effect of the surface energy of the metal. An increase in the modulus defect of irradiated polymers relative to non-irradiated polymers and the fragility of the polymer after UV exposure is also observed. The values of the polymer modulus defect arecompared to the temperature of the glass transition falling after irradiation, confirming the destruction of interatomic bonds.
