Portal de Periódicos da CAPES

Morphology and Thermal Stability of Electrically Conducting Nanocomposites Prepared by Sulfosalicylic Acid Micelles Assisted Polymerization of Aniline in Presence of ZrO 2 Nanoparticles

2013; Marcel Dekker; Volume: 52; Issue: 5 Linguagem: Inglês

10.1080/03602559.2012.757624

1525-6111

Tarique Anwer, Mohammad Omaish Ansari, Faiz Mohammad,

Advanced Sensor and Energy Harvesting Materials

Abstract Electrically conductive polyaniline (Pani)/zirconium oxide (ZrO2) nanocomposites were prepared by in-situ oxidative polymerization of aniline in the presence of sulfosalicylic acid (SSA), HCl and different amounts of ZrO2 nanoparticles. Pani/ZrO2 nanocomposites were characterized by Fourier Transform Infra-Red Spectroscopy (FTIR), Scanning Electron Microscopy (SEM) and X-Ray Diffraction (XRD). The stability of the nanocomposites in terms of DC electrical conductivity retention was also studied in ambient atmosphere by isothermal ageing and cyclic ageing techniques. Pani/ZrO2 nanocomposites were observed to be more conducting than Pani but showed poorer stability in terms of DC electrical conductivity retention under ambient environmental conditions. Keywords: DC electrical conductivity retentionIsothermal and cyclic ageing techniquesPani/ZrO2 nanocomposites ACKNOWLEDGMENT One of the authors (Tarique Anwer) is thankful to Mohammad Shahadat (Department of Chemistry, A.M.U., Aligarh) for help and discussions. Notes Stock Solution A: 236 g of SSA in 1000 mL of 1 M HCl. Stock Solution B: 200 g of double distilled aniline in 1000 mL of 1 M HCl. Stock Solution C: 72.5 g of K2S2O8 in 1000 mL of 1 M HCl.