Fabrication of biopolymer composites from oxidized chitosan and investigation of their properties

The optimum ratios of gelatin and oxidized chitosan in biopolymer composites were established by studying the viscosity and optical density of solutions of the biopolymers. The study of the sorption properties of films showed that oxidation of chitosan on one hand increases the degree of swelling caused by additional functionalization of the macromolecule of the polysaccharide and on the other, decreases the degree of swelling due to degradation of the polymer chain, up to total dissolution of the films. The biopolymer films obtained with the optimum ratio of components are characterized by the highest degree of swelling.