TY  - BOOK
AU  - Pyda,M.
AU  - Wunderlich,B.
TI  - Reversing and Nonreversing Heat Capacity of Poly(lactic acid)in the Glass Transition Region by TMDSC
N2  - A study of the glass transition of an amorphous and a semicrystalline poly(lactic acid)(PLA)is performed with adiabatic calorimetry, differential scanning calorimetry (DSC), and temperaturemodulated DSC (TMDSC). The reversing, total, and nonreversing apparent heat capacities of samples with different contents of L- and D-lactic acid and with various thermal histories were evaluated. Different modes of TMDSC analyses of amorphous and semicrystalline PLA were compared to the total heat capacity from standard DSC. The enthalpy relaxation and the cold rystallization in the glass transition region are largely irreversible. The melting is largely irreversible, but a 100
UR  - https://drive.google.com/file/d/1ZbMml8C-B4gVm0AVwsOKgOLSZViaZfVb/view?usp=drivesdk
ER  -