Physical and chemical aspects of biodegradation of natural polymers

摘要

The biodegradation of new polymeric materials of natural origin and of their mixtures with other natural and synthetic polymers was investigated. The processes of biodegradation were carried out in an aqueous and a soil medium in the presence of air. Experiments with the biodegradation of cellulose carbamate showed that the product was more susceptible to biological deocmposition than cellulose or its viscose derivatives. Experiments with the biodegradation of chitosan showed that the process was dependent on both the origin and properties of the samples, as well as on the degree of their deacetylation and conditions of the biodegradation process.