Abstract
This paper reports the synthesis of camphor sulfonic acid (CSA) doped PANI/GN composite nanofibers by the in situ chemical oxidative polymerization of aniline in the presence of cationic surfactant cetyl tri methyl ammonium bromide (CTAB). The as-synthesized composite nanofibers were examined by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Raman spectroscopy, UV-vis diffused reflectance spectroscopy, and thermogravimetric analysis. The CSA-doped PANI/GN composite nanofibers showed higher DC electrical conductivity than PAN!, which was attributed to the enhanced mobility of the charge carriers after the incorporation of GN into the PANI/GN composite nanofibers. The PANI/GN composite nanofibers also showed improved DC electrical conductivity retention at 413 K, which might be due to the synergistic effects of GN and PANI in the composite structure. (C) 2015 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.