Graft copolymerization of acrylic acid onto polyvinyl alcohol was carried out using a Ce(IV)-glucose redox system in an aqueous sulfuric acid medium under nitrogen atmosphere. The optimum conditions for grafting were determined by studying the effects of concentrations of metal ion, glucose, monomer, and acid on the percentage of grafting. The graft yield was influenced by reaction time, temperature, the amount of polyvinyl alcohol, some organic solvents, and inorganic salts. More than 80% graft yield could be achieved with the. present system. A suitable kinetic scheme is proposed on the basis of experimental findings.
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Panda et al. (1996) studied this question.
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