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Preparation by Ammonium Persulfate Initiation and Characterization of Cationic Starch Graft Copolymer

Pixin Wang

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Abstract

A cationic polymer was synthesized by aqueous solution polymerization using corn starch and acyrloxyethyl trimethylammonium chloride(DAC) as the starting materials and ammonium persulfate as the initiator.The effects of the mass ratio between DAC and corn starch,initiator amount,temperature and reaction time on cationic degree(DC) were discussed.The results showed that the maximum DC reached 53.68% after 8 hours of the reaction at 50 ℃ between DAC and starch with a weight ratio of 2.5:1 initiated by ammonium persulfate added at a level of 1.0%(calculated on the basis of the weight of corn starch).Furthermore,the graft copolymer was structurally characterized by FTIR,scanning electron microscope(SEM) and thermo-gravimetric/differential thermal analyze(TG-DTA).

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What this paper is about

A cationic polymer was synthesized by aqueous solution polymerization using corn starch and acyrloxyethyl trimethylammonium chloride(DAC) as the starting materials and ammonium persulfate as the initiator.The effects of the mass ratio between DAC and corn starch,initiator amount,temperature and reaction time on cationic degree(DC) were discussed.The results showed that the maximum DC reached 53.68% after 8 hours of the reaction at 50 ℃ between DAC and starch with a weight ratio of 2.5:1 initiated by ammonium persulfate added at a level of 1.0%(calculated on the basis of the weight of corn starch).Furthermore,the graft copolymer was structurally characterized by FTIR,scanning electron microscope(SEM) and thermo-gravimetric/differential thermal analyze(TG-DTA).

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Available abstract

A cationic polymer was synthesized by aqueous solution polymerization using corn starch and acyrloxyethyl trimethylammonium chloride(DAC) as the starting materials and ammonium persulfate as the initiator.The effects of the mass ratio between DAC and corn starch,initiator amount,temperature and reaction time on cationic degree(DC) were discussed.The results showed that the maximum DC reached 53.68% after 8 hours of the reaction at 50 ℃ between DAC and starch with a weight ratio of 2.5:1 initiated by ammonium persulfate added at a level of 1.0%(calculated on the basis of the weight of corn starch).Furthermore,the graft copolymer was structurally characterized by FTIR,scanning electron microscope(SEM) and thermo-gravimetric/differential thermal analyze(TG-DTA).

Key concepts: Ammonium persulfate, Cationic polymerization, Starch, Copolymer, Ammonium chloride, Persulfate, Aqueous solution, Chemistry

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