FTIR-MICROSPECTROSCOPY AND DSC STUDIES OF POLY(VINYLIDENE FLUORIDE)

Poly(vinylidene fluoride) (PVDF) samples, obtained by casting from tet rahydrofuran solutions and submitted to various thermal treatments, ha ve been examined by Fourier transform-infrared microspectroscopy (FTIR -M) and differential scanning calorimetry (DSC). This kind of analysis allowed us to examine microdomains of samples with different morpholo gical characteristics and to obtain an indication of the polymorphism of PVDF. In some cases the simultaneous presence of two or three forms has been evidenced thanks to the comparison of FTIR-M spectra and DSC traces. Vibrational spectra of single crystalline forms can be record ed by FTIR-M on phase homogeneous microdomains.