Table 3.

Heat of crystallization and heat of fusion of polylactic acid (PLA).

Reaction Temp. (°C)	Reaction Time (min)	Heat of Crystallization (J/g)	Heat of Fusion (J/g)	Crystallization (%)
180	5	−15.84	42.74	19.93
180	10	−13.00	43.32	22.46
180	15	0	45.93	34.02
200	3	−22.19	44.80	16.75
200	5	−21.38	46.06	18.28
200	8	0	34.34	25.44
250	2	−11.82	43.97	23.81
250	3	−1.69	38.03	26.92
Before decomposition		−2.41	30.73	20.97