Ultrasonic irradiation largely accelerated eerie salt initiated grafting of glycidyl methacrylate (GMA) on regenerated cellulose film (cellophane thickness = 20 mu m) at 60 degrees C in air. The grafting under ultrasonic irradiation was characterized by a higher percent of grafting and graft efficiency and a lower density of GMA-grafted chains in the surface layer of the grafted films compared to the unirradiated system, which was obtained by attenuated total re reflectance IR measurements. The grafted films were subjected to aminatian with ethylenediamine (En) at 70 degrees C for 3 hin:N,N-dimethylformamide. The amount of epoxy groups in the grafted films, which participated in the reaction with En, reached about 50-60 mol % and was slightly lower for the grafted film prepared in the irradiated system than that; prepared in the unirradiated one. Adsorption of cupric ions with the aminated samples was performed at pH 5.0 using Clark-Lubs buffer solution and cupric chloride. The adsorption was extremely retarded for the aminated sample prepared using the unirradiated sample compared to that prepared using the irradiated one. The retarded adsorption phenomenon is discussed in terms of a larger formation of crosslinked structures on the surface layer of the former sample during the amination.