Protonation Degree of Doped Polyaniline with Sulfosalicylic Acid as Function of the Synthetic Method


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X-ray photoelectron spectroscopy (XPS) has been employed to investigate the protonation degree of polyaniline doped with sulfosalicylic acid (PAni-SSA) obtained by different synthetic methods. The protonation degree has been compared to electrical conductivity. Prepared PAni-SSA through the redoping process in an agate mortar displays conductivity values within the range of 1S/cm. Protonation degree of synthesized PAni-SSA by aqueous dispersion polymerization of aniline in the presence of SSA is higher than 50 %, indicating that a substantial portion of amine units have also been protonated. The C/N and S/N molar ratios obtained by XPS analysis indicate that the polyaniline chains obtained by aqueous dispersion polymerization are protonated by both sulfate anions.



Materials Science Forum (Volumes 663-665)

Edited by:

Yuan Ming Huang




H. Huang et al., "Protonation Degree of Doped Polyaniline with Sulfosalicylic Acid as Function of the Synthetic Method", Materials Science Forum, Vols. 663-665, pp. 462-465, 2011

Online since:

November 2010




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