Studying kinetics of release medicinal substances from chitosan films

Abstract

The kinetics of controlled release of medicinal substances from chitosan films has been investigated. Correlation between values of coefficients diffusion and shares of medicinal substance connected with a polymeric chain has been established.It was shown that the greater proportion of the medicinal substance connected with a polymeric chain, the lower the value of diffusion coefficients and the index defining process of diffusion in the chitosan films, and the slower transport of medicinal substance from a polymeric matrix.