Photoacoustic characterization and FTIR spectroscopic studies on conducting polyaniline doped with different sulphonic acids

The open photoacoustic cell technique is used to measure the thermal diffusivity value of conducting polyaniline doped with different sulphonic acids. It is based on the measuring of the photoacoustic signal as a,function of modulation frequency. In the present work the measured thermal diffusivity and electrical conductivity values were (4.55-6.02)/spl times/10/sup -2/ cm/sup 2//s. and of (4.48/spl times/10/sup -3/-3.22) S cm/sup -1/ respectively. The IR absorbance spectra are also reported.