Abstract
Phase change of erythritol confined in highly ordered mesoporous silica SBA-15 was studied by differential scanning calorimetry (DSC). Mesoporous silica SBA-15 particles with three different pore radii (3.76, 4.15 and 4.61 nm) were synthesized by changing the aging temperature. The DSC curves of erythritol and the mixtures of erythritol and SBA-15 particles were measured. The measured DSC curves showed that the endothermic peak of erythritol confined in SBA-15 appears at lower temperature than that of pure erythritol and the peak shifts to lower temperature with decreasing the pore radius. Furthermore, the influence of thermal history on the melting and freezing points of erythritol confined in SBA-15 was clarified.
