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

doi:10.7506/spkx1002-6630-201107017

FOOD SCIENCE ›› 2011, Vol. 32 ›› Issue (7 ): 73-76.doi: 10.7506/spkx1002-6630-201107017

• Basic Research • Previous Articles Next Articles

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

WU Xiu-li1，XUE Dong-hua2，WANG Pi-xin3

1. College of Biological Science and Technology, Changchun University, Changchun 130012, China；2. School of Chemistry and
Life Science, Changchun University of Technology, Changchun 130012, China；3. Key Laboratory of Polymer Ecomaterials,
Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China

Received:2010-07-22 Revised:2011-02-22 Online:2011-04-15 Published:2011-03-30
Contact: WU Xiu-li E-mail:ccwxl0323@sina.com

Abstract

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 words: ammonium persulfate, corn starch, acryloyloxyethyl trimethylammonium chloride (DAC), cationic polymer, structure characterization

CLC Number:

TS234

WU Xiu-li1，XUE Dong-hua2，WANG Pi-xin3. Preparation by Ammonium Persulfate Initiation and Characterization of Cationic Starch Graft Copolymer[J]. FOOD SCIENCE, 2011, 32(7 ): 73-76.

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

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