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The open pholoacoustic 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) × 10-2 cm2/s. and of (4.48 × 10-3-3.22) S cm-1 respectively. The IR absorbance spectra are also reported.
© 2001 IEEE
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