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IJEMS Vol.15(6) [December 2008] >


Title: Thermal, spectroscopic and electrical transport properties of processable poly(aniline-co-alkylaniline) copolymers
Authors: Saini, Parveen
Bhandari, Hema
Choudhary, Veena
Dhawan, S K
Keywords: Polyaniline
Copolymers
Variable range hopping (VRH)
Poly(aniline-co-isopropyl aniline)
Poly (aniline-co-2-secbutyl aniline)
Conductivity
TGA
FTIR
XRD
Issue Date: Dec-2008
Publisher: CSIR
Abstract: Aniline has been copolymerized in the presence of substituted anilines as comonomers to prepare conducting copolymers of poly(aniline-co-alkylaniline) type, via the chemical oxidative polymerization route. Their thermal stabilities and conductivities are slightly less than pure polyaniline but processabilities have been improved significantly. These copolymers exhibit improved solubility in organic solvents like 1-methyl-2-pyrrolidone (NMP), dimethyl sulpohxide (DMSO), and dimethyl formamide (DMF). Conduction mechanism has been found to be 3-D VRH in case of pure HCl-doped polyaniline and 1-D VRH for copolymers. Coating of these polymers on insulating surfaces can be used for ESD protection and corrosion prevention of iron and mild steel under hostile conditions.
Page(s): 497-504
ISSN: 0971-4588
Source:IJEMS Vol.15(6) [December 2008]

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