Thermal, spectroscopic and electrical transport properties of processable poly(aniline-co-alkylaniline) copolymers

Saini, P; Bhandari, H; Choudhary, V; Dhawan, SK

HERO ID

3577487

Reference Type

Journal Article

Year

2008

HERO ID 3577487
In Press No
Year 2008
Title Thermal, spectroscopic and electrical transport properties of processable poly(aniline-co-alkylaniline) copolymers
Authors Saini, P; Bhandari, H; Choudhary, V; Dhawan, SK
Journal Indian Journal of Engineering and Materials Sciences
Volume 15
Issue 6
Page Numbers 497-504
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 sulphoxide (DMSO), and dimethyl formamide (DMF). Conduction mechanism has been found to be 3-D VRH in case of pure HCl-doped polyaniline and 1-1D 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.
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Keyword Polyaniline; Copolymers; Variable range hopping (VRH); Poly(aniline-co-isopropyl aniline); Poly (aniline-co-2-secbutyl aniline); Conductivity; TGA; FTIR; XRD