| 초록 |
Starch is composed of a mixture of amylose and amylopectin. The former has a linear structure consisting of α-1,4-linked D-glucose units, and the latter has the same backbone as amylose with α-1,6-linked D-glucose units. Chitosan is comprised of β-1,4-linked D-glucosamine units and N-acetyl D-glucosamine residues. Many researchers have had extensive interest in these polysaccharides because of their biodegradability, biocompatibility, and nontoxicity. In this study, the novel full-polysaccharide hydrogels are derived from modified polysaccharides without any extraneous crosslinking agent. The chemically modified starch and chitosan are prepared by oxidation and Michael reaction, respectively. The hybrid hydrogels were characterized regarding their chemical, microstructural, morphological, mechanical, swelling, and degradation properties. These results demonstrate that the materials can be used in various fields. |
