Both spectra were very
similar to that for pure PVC, but revealed, besides the characteristic
peaks for the polymer, bands at 3375 cm1 corresponding
to the angular deformation of OH groups; at
2925 cm1, due to C–C–C and H–C–H (nasCH2) angular
deformation; at 1734 cm1 attributed to saturated aliphatic
ester (C]O) and at 1458 cm1, related to asymmetric
vibrations (nasCH3) or angular deformations (dsCH2).