Table 1.

Thermogravimetric parameters for thermal degradation of chitosan, O-CMCS, and chitosan-based biopolymer dye.

Sample	Tei (°C)	Tmax1 (°C)	Tmax2 (°C)	Char Residue at 700 °C (%)
Chitosan	85	88	291	33.5
O-CMCS	49	95	221	30.5
Chitosan-based biopolymer dye	46	101	233	34.1