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Synthesis of silica containing chitosan hydrogel in glycolic acid medium

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Document pages: 8 pages

Abstract: In this paper, organically modified silica Si (OGly) 4? 2GlyOH was used as precursor, and the inorganic organic hybrid hydrogel based on chitosan glycolate was synthesized through a "green " sol-gel process. The Si - O Si Si formed bonds at 4, 20 and 37 degrees C. According to the composition (polymer template and precursor concentration, introducing low molecular weight accelerator NaCl) and gel conditions (pH value and temperature of sol-gel process), the gel time of multi component chitosan system was estimated. The research shows that the increase of polymerization salt, the introduction of accelerant and the increase of pH and temperature will accelerate the formation process of gelatin.

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