Optimized Conductivity of Anthraquinone-2-Sulfonic Acid Sodium, 5-Sulfosalicylic Acid and Toluene-4-Sulfonic Acid Co-Doped Polypyrrole
By doping three complex dopants in different molar ratio, a series of polypyrroles doped with 9, 10-anthraquinone-2-sulfonic acid sodium, 5-sulfosalicylic acid and toluene-4-sulfonic acid were synthesized by polymerizing the monomer pyrrole in aqueous solution of ferric chloride. The resulting polypyrroles were characterized with the four-probe and laser light scattering, respectively. Our results indicate that optimized value of conductivity reached to 6683 S/m when the molar ratio of anthraquinone-2-sulfonic acid sodium to 5-sulfosalicylic acid to toluene-4-sulfonic acid was 2:1:3. For applications of polymer in optoelectronics, in lithium-ion battery and in electromagnetic shielding, to obtain optimized value of conductivity has great significance for us.
Yuan Ming Huang
Y. M. Huang et al., "Optimized Conductivity of Anthraquinone-2-Sulfonic Acid Sodium, 5-Sulfosalicylic Acid and Toluene-4-Sulfonic Acid Co-Doped Polypyrrole", Materials Science Forum, Vols. 663-665, pp. 702-705, 2011