Blends of thermoplastic cornstarch (TPS) and chitosan (TPC) were obtained by melt extrusion.
The effectof TPC incorporation in TPS matrix and polymer interaction on morphology and thermal and mechanical properties were investigated.
Possible interactions between the starch molecules and thermoplastic chi-tosan were assessed by XRD and FTIR techniques.
Scanning Electron Microscopy (SEM) analyses showed ahomogeneous fracture surface without the presence of starch granules or chitosan aggregates.
Althoughthe incorporation of thermoplastic chitosan caused a decrease in both tensile strength and stiffness, filmswith better extensibility and thermal stability were produced.