Study on the Preparation of Chitosan/Sodium Alginate Copolymer

Yi Hua Yuan; De Min Jia

doi:10.4028/www.scientific.net/AMR.531.39

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Study on the Preparation of Chitosan/Sodium Alginate Copolymer

Abstract:

By using the chitosan and sodium alginate as raw material, (NH4)2Ce(NO3)6 as the initiator, under alkalinity condition, chitosan / sodium alginate copolymer was synthesized. Chemical structure of CTS-AGS was characterized by FT-IR, and the morphology of CTS-AGS was observed by SEM. The results showed the synthesis of CTS-AGS was carried out as the established way. The addition of AGS greatly reduced the hydrogen bonds and increased steric resistance among chitosan molecules, and hence made CTS-AGS had stronger affinity for water. The optimal conditions for the synthesis were: m(CTS)∶m(SAL) =2:1, reaction temp. is 70°C, and the best time is 24h.