Heat capacity measurements between 293 K and 363 K have been carried o
ut in order to elucidate the different states appearing in 2-amino-2-m
ethyl-1,3 propanediol (AMP) plastic crystal. The results allowed one o
f them to be identified as a glassy crystal. The changes of enthalpy,
entropy and Gibbs free energy thermodynamic functions with temperature
have been calculated from the experimental heat capacity values.