Abstract
Abstract Water-soluble sulfopropylcellulose (SPC) was synthesized by the reaction of 1,3-propane sultone with sodium cellulose in dioxane. The degree of substitution (0.3-1.0) was calculated by elemental analysis. The corresponding water-soluble polyacrylamide graft copolymer was prepared by Ce4+ ion-initiated graft copolymerization of acrylmide onto sulfopropylcellulose dissolved in dilute nitric acid solution at room temperature under argon. The graft copolymerization was carried out in 0.2 M NaNO3 solution in order to suppress the ionic interaction between the sulfonate ion and eerie ion. The average number of grafts per SPC was found to be 1.1 or less, depending on the reaction conditions.
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