Energy Dispersive X-ray Diffraction and Differential Scanning Calorimetry investigation of the melting behaviour of Poly(Ethylene-Succinate) crystallised at low undercooling.

The behaviour upon heating of Poly[Ethylene-Succinate] (PES) samples crystallised at progressively lower undercooling has been studied. The multiple melting phenomena exhibited by this particular polymer subjected to a temperature ramp mode were investigated using both ordinary Differential Scanning Calorimetry (DSC) and an alternative technique, Energy Dispersive X-ray Diffraction applied to Phase Transitions (EDXD-PT). A critical comparison of the two methods adopted in the melting studies is included. Another application of the EDXD-PT method, which allows to distinguish the structural rearrangements that take place on different distance scales, is also described.