Optimization of Synthetic Conditions of Graft Copolymerization of Alginate-g-Poly(methacrylamide)

Abstract

In this study, we synthesized a novel graft copolymer based on sodium alginate (NaAlg) and polymethacrylamide (PMAAm) via a free radical polymerization method. The graft copolymerization reaction was carried out in a homogeneous medium. The graft copolymer structures were confirmed by FTIR spectroscopy and solubility characteristics of the products. The effect of grafting variables, i.e. concentration of ammonium persulfate, methacrylamide, sodium alginate and temperature was systematically optimized to achieve a highest per cent grafting possible.