Electrical conductivity and thermal stability of polyaniline p-doped with perchloric acid and sulfuric acid at various concentrations

Authors

  • Earl Vincent B. Lagsa Materials Science and Engineering Program, University of the Philippines Diliman
  • Flo Rykiel M. Ramos Materials Science and Engineering Program, University of the Philippines Diliman
  • Malou D. Catedral Materials Science and Engineering Program, University of the Philippines Diliman
  • Alvin Karlo G. Tapia Materials Science and Engineering Program, University of the Philippines Diliman
  • Roland V. Sarmago National Institute of Physics, University of the Philippines Diliman

Abstract

Polyaniline doped with protonic acids, perchloric acid (HClO4) and sulfuric acid (H2SO4) at various concentrations were investigated in terms of electrical conductivity and thermal stability at different temperatures 60°C, 90°C, 150°C and 190°C and various times for 60, 120, 180 and 240 minutes. It was found for both protonic acids that as the dopant concentration increases the electrical conductivity and thermal activation energy also increase. It was also found that the rate of decrease in electrical conductivity is more pronounced at temperatures 150°C and 190°C. PANi doped with perchloric acid is also found to have higher activation energies and appears to be more thermally stable compared to PANi doped with sulfuric acid. However, the latter is found to have higher electrical conductivity.

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Article ID

SPP-2005-2B-04

Section

Materials Science

Published

2005-10-26

How to Cite

[1]
EVB Lagsa, FRM Ramos, MD Catedral, AKG Tapia, and RV Sarmago, Electrical conductivity and thermal stability of polyaniline p-doped with perchloric acid and sulfuric acid at various concentrations, Proceedings of the Samahang Pisika ng Pilipinas 23, SPP-2005-2B-04 (2005). URL: https://proceedings.spp-online.org/article/view/SPP-2005-2B-04.