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

Acrylamide was graft copolymerized onto LDPE, EVA and LDPE/EVA films u sing gamma radiation. The effects of different parameters such as mono mer concentration, inhibitor concentration and radiation dose on the g raft yield was studied. The grafted films obtained were characterized by using their water uptake, spectroscopic analysis and thermal analys is using differential scanning calorimetry. It was found that such gra fted films can be used for copper ion recovery from their aqueous solu tions with an efficiency of up to 98%. It was also established that gr afted films deteriorate very rapidly under the effect of UV radiation as the grafted part acts as photosensitizer. Copyright (C) 1996 Elsevi er Science Ltd