Effect of Cross Linked Chitosan Filler on ...

The degradability properties of cross linked chitosan (ODAC) filled chitosan bio-composites were investigated under swelling analysis. The swelling analysis was performed under the pH medium of 2 to 12, and recorded as swelling ratio (Qt) and swelling rate (Qr). The optimum Qt and Qr values of the bio-composites occurred at pH 7. The Qt and Qr values reduced linearly with the ODAC filler content up to 8 wt/v %. The Fourier Transform Infra-Red (FTIR) analysis of the bio-composites confirms a good compatibility, rigidity and homogenous of the Cs matrix and DPAC filler. This in turn increased the stability of the bio-composites as visualized by FTIR analysis of swollen sample.