Oromiehi - Iran Polymer and Petrochemical Institute, Pazhoohesh Street, tehran, iran
Babak Ghanbarzadeh - Department of Food Science and Technology, Faculty of Agriculture, University of Tabriz,Iran
Ali Vaziri - Departement of chemical engineering, polymer group, Research Unit of Islamic Azad University of Tehran, Tehran, Iran.
Azadeh sadat Shekarabi - Departement of chemical engineering, polymer group, Research Unit of Islamic Azad University of Tehran, Tehran, Iran.

The thermo-mechanical properties of chitosan (C), zein (Z) and chitosan-zein (CZ) composite films were investigated by dynamic mechanical thermal analysis (DMTA). Composite films were prepared by blending of chitosan and zein solutions at various compositional ratios and using of casting technique. For the composite films, there was no clear evidence of separate phase transitions of the individual polymeric constituents or a separate polyol phase. The results showed that composite films from blending of chitosan solution with zein solution had lower glass transition temperature (Tg) in comparison with individual polymeric constituents.

Zein, Chitosan, Composit films, DMTA