Preparation and Characterization of Graft Copolymer of Acryloyloxyethyl-Trimethylammonium Chloride and Starch

Xiu Li Wu; Pi Xin Wang; Ya Cui Guo

doi:10.4028/www.scientific.net/AMR.634-638.1977

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Preparation and Characterization of Graft Copolymer of Acryloyloxyethyl-Trimethylammonium Chloride and Starch

Abstract:

Using ammonium persulfate (APS) as the initiator, a series of cationic starch— acyrloxyethyl-trimethylammonium chloride (DAC) graft copolymers containing quaternary ammonium groups were prepared in aqueous solution. The results showed that the cationic graft copolymer of high cationic degree (DC) could be obtained in this reaction system. The maximum DC of 53.68% was achieved with ASP/starch mass percentage 1.0%, m(DAC):m(starch) = 2.5,at 50°C and reaction time 8h. Structures of the graft copolymers were characterized by FTIR, scanning electron microscope (SEM) and thermo-gravimetric/differential thermal analyze (TG-DTA).