Abstract
Abstract The cationic resin of polyacrylamide-acrylic acid “pAM–AA” was prepared by gamma radiation–induced polymerization of acrylic acid “AA” in presence of polyacrylamide “pAM” using a template polymerization technique. The product materials were characterized by powder x-ray diffraction, and infrared spectra. The ion-exchange capacity for Cu2+, Co2+, Cs+ ions decreases with increasing the hydrogen ion concentration. The ion selectivity decreases in the order Cu >2+ Co >2+ Cs+. The effect of gamma radiation on the exchange capacity, distribution coefficients and the chemical stability of the resin has been investigated. The capacity of the resin for Cu2+ decreases with the absorbed doses. In addition, the amount of Cu2+ ion released to the solution from the solid phase increases below pH 4 the release of Cu2+ ion has vanished.
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