Abstract
Dielectric properties such as permittivity, loss factor and conductivity of pure polyaniline emeraldine base PANI-EB pellets are measured as a function of electric field and frequency. Dielectric properties are measured in the electric field range from 0.2 kV/mm to 2.45 kV/mm and in the frequency range from 0.1 Hz to 1 kHz. Measurement results clearly show that relative permittivity, loss factor and conductivity of PANI EB increase as a function of increasing electric field. Relative permittivity of PANI EB is also quite high, approx. 20 even in the lowest electric field at 50 Hz. On the other hand relative permittivity also increases as a function of decreasing frequency range as well as the loss factor. Only conductivity increases as a function of increasing frequency. The formalism of electric modulus is also studied in the paper.
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