GAMMA-RADIOLYSIS OF AQUEOUS-SOLUTION OF ACRYLIC AND POLYACRYLIC-ACID IN THE PRESENCE OF CU2+

The inhibitory action of cupric ions in the process of radiation polym erization of acrylic acid (BA) in aqueous solution was investigated as well as the reaction of the products of gamma radiolysis of water wit h polyacrylic acid (PAA) in the presence of cupric ions. In the case o f AA-CuSO4 and PAA-CuSO4 systems irradiated at 77 K an external protec tive effect caused by copper ions was observed. This effect was connec ted with the electron transfer between a radical and the Cu2+ ion. Dur ing radiolysis of copper arcylate (A(2)Cu) and a system AA-A(2)Cu in a queous solutions a protective effect exerted by copper ions was observ ed which seemed to be connected with the dispersion of the absorbed ra diation energy by the groups: copper-ligands.