CHARACTERIZATION AND APPLICATION OF GRAFTED ACRYLAMIDE ONTO LDPE, EVA AND LDPE/EVA FILMS USING GAMMA RADIATION

摘要

Acrylamide was graft copolymerized onto LDPE, EVA and LDPE/EVA films using gamma radiation. The effects of different parameters such as monomer concentration, inhibitor concentration and radiation dose on the graft yield was studied. The grafted films obtained were characterized by using their water uptake, spectroscopic analysis and thermal analysis using differential scanning calorimetry. It was found that such grafted films can be used for copper ion recovery from their aqueous solutions with an efficiency of up to 98%. It was also established that grafted films deteriorate very rapidly under the effect of UV radiation as the grafted part acts as photosensitizer.