INFRARED DICHROIC STUDY OF ORIENTATION IN POLY(VINYL PHENOL)

Fourier transform infra-red (FTi.r.) spectroscopy was used to investig ate the orientation of uniaxially stretched films of poly(vinyl phenol ) (PVPh). The alpha angles of the various vibrations were determined w ith respect to the CH2...CH2 axis. No evidence was found for any influ ence of the hydrogen bonds on the orientation of PVPh when compared to polystyrene (PS). On the other hand, it was noted that, upon formatio n of hydrogen bonds, the alpha angle of the hydroxyl groups changes fr om 26 to 65-degrees.