Study on Thermal Behavior of Some Biocompatible and Biodegradable Materials Based on Plasticized PLA, Chitosan, and Rosemary Ethanolic Extract

Table 2

Onset oxidation temperature (OOT) and apparent activation energy (Ea) for the oxidation of the PLA/PEG and PLA/PEG/CS/R biocomposites determined by nonisothermal chemiluminescence method at different heating rates.

Sample	Heating rate (°C min^-1)	OOT (°C)	Equation	Correlation coefficient	Ea (kJ mol^-1)
PLA/PEG	3.7	185		0.98344	52.54
	5.0	201
	10.0	218
	15.0	231
PLA/PEG/3CS	3. 7	179		0.97148	51.05
	5.0	197
	10.0	212
	15.0	225
PLA/PEG/6CS	3. 7	192		0.98344	52.30
	5.0	208
	10.0	220
	15.0	232
PLA/PEG/R	3. 7	182		0.99378	53.04
	5.0	188
	10.0	208
	15.0	225
PLA/PEG/3CS/R	3. 7	180		0.97528	52.63
	5.0	196
	10.0	215
	15.0	223
PLA/PEG/6CS/R	3. 7	192		0.89551	55.29
	5.0	216
	10.0	224
	15.0	245