The Effect of a Metal-Substrate Surface on the Relaxation Behavior of Acrylic Coatings

The effect of the surface of an untreated and annealed copper substrate on the dissipative α-relaxation process in a highly elastic acrylic polymer is analyzed. The analysis is based on a comparison of the structural state and elemental composition of the metal surface, which are studied using physicochemical methods, with the intensity of internal-friction peaks, the glass-transition temperature, and the elasticity of the copolymer. The characteristics of the surface layer are correlated with the elastic properties of the polymer.