Anantharaman, M R; Saravanan, S; Joseph, Mathai C; Venkitachalam, S; Prabhakaran, P V(Elsevier, January 11, 2006)
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Abstract:
Polyaniline is chemically synthesised and doped with camphor sulphonic acid. FTIR studies carried out on these samples indicate that
the aromatic rings are retained after polymerisation. The percentage of crystallinity for polyaniline doped with camphor sulphonic acid
has been estimated from the X-ray diffraction studies and is around 56% with respect to polyaniline emeraldine base. The change in
dielectric permittivity with respect to temperature and frequency is explained on the basis of interfacial polarisation. AC conductivity is
evaluated from the observed dielectric permittivity. The values of AC and DC conductivity and activation energy are calculated. The
activation energy values suggested that the hopping conduction is the prominent conduction mechanism in this system.
Description:
Journal of Physics and Chemistry of Solids 67 (2006) 1496–1501