Thermal history-dependent nanoscale ordering in supercooled propylene carbonate revealed by DSC and FTIR spectroscopy.
Nanoscale molecular ordering in supercooled propylene carbonate (PC) and its dependence on thermal history are investigated using differential scanning calorimetry (DSC) and Fourier-transform infrared (FTIR) spectroscopy. DSC measurements over an extended temperature range reveal an exothermic feature at Tc ≈ 183 K (≈...