A Study of the Effect of Starch in Polymer Blends of Carboxymethyl Cellulose and Chitosan

Noppawat Keungputpong; Nuanjan Matchariyakul; Sunan Tiptipakorn

doi:10.4028/www.scientific.net/AMR.989-994.697

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 989-994A Study of the Effect of Starch in Polymer Blends...

A Study of the Effect of Starch in Polymer Blends of Carboxymethyl Cellulose and Chitosan

Abstract:

This research is divided into 2 parts. In part I, the optimal ratio of polymer blends between chitosan (CS) with carboxymethyl cellulose (CMC) by using glutaraldehyde (GL) as crosslinked agent. In part II, the effect of starch on the properties of polymer blends was determined. The chemical interaction of the blends was studied with Fourier Transform Infrared Spectroscope (FT-IR). The thermal properties of polymer blends were also determined with differential scanning calorimeter (DSC) and thermogravimetric analyzer (TGA). Moreover, the study of physical property was performed with a Swelling Test method. From test results in part I, the optimal ratio between CS (0.8%w/v) and CMC (0.8%w/v) was 3:2 by volume. Furthermore, the FT-IR spectra reveals the chemical interaction (C=N). In part II, the blend which was added with 50 percent by weight of starch show the highest glass transition temperature. The maximum rate of decomposition temperature and the percentage of swelling were increased with the increase of starch.