Amorphous solid of tri-O-methyl-β-cyclodextrin was produced by grinding its crystalline sample with a rod-milling machine at room temeprature. Structural
and thermal characterizations of the sample during amorphizing process were done by X-ray powder diffraction and differential
scanning calorimeter. The glass transition for a fully amorphized sample was found to occur at essentially the same temperature
as that for a liquid-quenched glass. The heat capacities of the non-crystalline solids realized by grinding and liquid quenching
and of the crystalline solid were measured by a low temperature adiabatic calorimeter. Excess enthalpies of the ground amorphous
solid and liquid quenched glass over that of the hypothetical equilibrium liquid were determined calorimetrically. Similar
and dissimilar thermal behavior of both non-crystalline solids were compared.