Discovery of new thermal anomalies in trehalose dihydrate: insights into their properties through differential scanning calorimetry and microscopic observation
摘要
We have investigated the thermal properties of trehalose dihydrate by using differential scanning calorimetry and direct observation by optical microscope. A key result of our findings is the discovery of thermal anomalies around 350 K (LTA) and 430 K (HTA) for liquidous trehalose dihydrate and confirm the relation between those anomalies. By connection with microscopic observation and DSC curves, we have found that the emergence of small crystalline structures above the melting point of trehalose dihydrate plays an important role in understanding LTA and HTA. LTA corresponds to the growth process for this structure, while HTA is a gradual melting procedure.