Abstract
Polyaniline (PANI) was synthesized using ammonium persulfate with different amounts of poly(4-sulfonic acid diphenyl aniline) (PSDA) as a template in order to obtain water-dispersible eco-friendly PANI:PSDA composites with enhanced thermoelectric properties. The synthesized composites were characterized by UV-Vis spectroscopy, FT-IR spectroscopy and scanning transmission electron microscopy. The particle sizes and zeta potentials of the PANI:PSDA dispersions were also measured. The electrical conductivity and Seebeck coefficient of PANI increased from 0.39 S m-1 to 3.2 S m-1 and from 21 $$\mu$$ V K-1 to 207 $$\mu$$ V K-1, respectively. The highest power factor was found in the 40% PSDA composition as 0.09 $$\mu$$ W m-1K-2, which is 500 times that of pristine PANI.
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