Abstract
Thermal analysis and calorimetry are basic techniques to characterize the thermal properties of materials. By the introduction of MEMS technology, highly sensitive and fast response chip calorimeters have been available. This paper reports the melting behavior of an isothermally crystallized PET investigated by the fast scanning calorimetry. In temperature scan rates of 25-400 K/s, DSC curves of the PET shsowed two separate melting peaks because reorganization of the original crystalline structure occurred during temperature scan. On the other hand, fast temperature scans over 700 K/s kept the PET sample original structure and one melting peak of the original crystal was observed in DSC curve.
