FTIR spectra recorded in transmission mode both in the medium (400-4000 cm-1) and the near infrared (4000-6400 cm-1) ranges of polymer films, liquids (i.e. monomers and oligomers), solids (on KBr disk) and gases at room temperature by using Agilent Cary 660 FTIR spectrometer having a maximum resolution of 0.5 cm-1. The quantitative analyses are carried out by using specific softwares in combination with some pure compounds used as reference materials.