Please use this identifier to cite or link to this item:
Title: Thermal and conducting behaviour of emeraldine base (EB) form of polyaniline (PANI)
Authors: Chauhan, Narendra P S
Ameta, Rakshit
Ameta, Rohit
Ameta, Suresh C
Keywords: Conducting polymer
Polyaniline-emeraldine base
Two-probe conductivity method
Differential scanning calorimetry
Issue Date: Mar-2011
Publisher: NISCAIR-CSIR, India
Abstract: Emeraldine base (EB) form of polyaniline (PANI) powder is prepared by chemical oxidative polymerization using different acidic media (HCl or CF3COOH) at different temperatures (-15°C to + 5°C). The chemical structure, thermal characterization and conducting behaviour are studied by means of Fourier transform infra-red (FTIR) spectroscopy, differential scanning calorimetery (DSC) and two-probe conductivity method. These polyanilines are soluble in N-methyl-2-pyrrolidone, dimethyl sulfoxide (DMSO) and dimethylpropylene urea (DMPU). The softening temperatures of different EB range from 87.8-116.4°C, which is believed to be an indication of cross-linking. Conductivity of emeraldine base of PANI is around (0.8-1.5) × 10-6 S/cm and energy band gap is approximately 0.5 eV, and no detectable crystallinity is observed. Wide-angle XRD technique indicates that PANI- EB base is amorphous in nature.
Description: 118-122
ISSN: 0975-0991 (Online); 0971-457X (Print)
Appears in Collections:IJCT Vol.18(2) [March 2011]

Files in This Item:
File Description SizeFormat 
IJCT 18(2) 118-122.pdf199.77 kBAdobe PDFView/Open

Items in NOPR are protected by copyright, with all rights reserved, unless otherwise indicated.