Graft Copolymerization of Starch-acrylamide Initiated by Manganic Pyrophosphate Complex

Abstract

Abstract: Aseries of starch-polyacrylamide graft copolymers (ST-g-PAM) were prepared by Mn³⁺-initiated graft copolymerizations of acrylamide (AM) onto starch (ST) dissolved in water at 30℃. The effects of solution acidity and concentrations of monomer, starch and initiator on graft copolymer-ization were investigated.The copolymerization was much more susceptible to pHvalue of the reaction solution.Reaction mechanisms responsible for the initiation of graft copolymerization and homopolymeriza-tion of AMare proposed and discussed.

Key words: Manganic pyrophosphate complex initiation, Starch, Acrylamide, Grafting copolymeriza-tion

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Feng Zhenguo . Graft Copolymerization of Starch-acrylamide Initiated by Manganic Pyrophosphate Complex[J]. Chem. J. Chinese Universities, 1990, 11(2): 215.

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Graft Copolymerization of Starch-acrylamide Initiated by Manganic Pyrophosphate Complex

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