Author/Authors :
binti Ahmad Tarmizi, Amirah Amalina Universiti Teknologi MARA - Faculty of Applied Sciences, Malaysia , Harun, Mohamad Kamal Universiti Teknologi MARA - Faculty of Applied Sciences, Malaysia , Abdullah, Saifollah Universiti Teknologi MARA - Faculty of Applied Sciences, Malaysia , Bahron, Hadariah Universiti Teknologi MARA - Faculty of Applied Sciences, Malaysia , Yahya, Muhd Zu Azhan Universiti Pertahanan Nasional Malaysia - Faculty of Science Defence Technology, Malaysia , Yahaya, Sabrina M. Universiti Teknologi MARA - Faculty of Applied Sciences, Malaysia , Abdul Halim, Nurul Huda Universiti Teknologi MARA - Faculty of Applied Sciences, Malaysia
Abstract :
This study investigates the effect of oxalic acid at different concentrations as doping agent on the electrical properties of polyaniline (PANI). The polymerization of aniline to produce PANI was carried out in media containing oxalic acid at 0.08 M, 0.09 M, 0.1 M, 0.2 M and 0.3 M in the presence of ammonium persulphate as oxidizing agent. The successful formation of PANI doped with oxalic acid was confirmed by FTIR and the morphology studied using XRD. An impedance investigation on the series of PANI formed revealed that doping in 0.1M oxalic acid produced PANI of the highest conductivity of 2.52 x 10^-6 Scm^-1.
Keywords :
polyaniline , oxalic acid , conductivity , impedance spectroscopy
