Similar results were reported by Salleh, Muhamad, and Khairuddin (2009) to starch–chitosan films obtained by casting, in which chitosan particles dispersed within the starch–chitosan matrix were observed.3.4. Thermogravimetric analyzesTG curves and their first derivative (DTG) curves for TPS, TPC and TPC/TPC blends are shown in Fig. 4A and B. From TG (Fig. 4A), and DTG (Fig. 4B) curves the onset (Tonset) and endset (Tendset) temperatures for degradation of TPS and blends are shown in Table 1.