The dielectric relaxation measurements on poly(ethylene-terephthalate) (PET
) containing adsorbed aniline and polyaniline (PAni), prepared by polymeriz
ation into the PET matrix, have been performed between 173 and 403 K in the
frequency range 1 to 10(7) Hz. The influence of aniline and PAni on the be
ta-relaxation of PET and the effect of the presence of PAni on the alpha-re
laxation of PET have been studied. For the films PET-PAni doped with HCl, t
wo relaxation processes around 0.5-5 kHz and 0.2-1 MHz were observed. (C) 1
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