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Synthesis, characterization, and hoping transport properties of HCl doped conducting biopolymer‐ co ‐polyaniline zwitterion hybrids
Author(s) -
Tiwari A.,
Sen V.,
Dhakate S. R.,
Mishra A. P.,
Singh V.
Publication year - 2008
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.1058
Subject(s) - polyaniline , materials science , zwitterion , aniline , polyaniline nanofibers , fourier transform infrared spectroscopy , gum acacia , conductivity , cationic polymerization , copolymer , polymer chemistry , chemical engineering , biopolymer , chemistry , organic chemistry , composite material , molecule , polymer , food science , engineering , polymerization
A series of electrically conductive zwitterion hybrid materials were facilely synthesized with anionic acacia gum (AG) and cationic HCl doped polyaniline (PANI) through radical copolymerization method. A representative acacia gum‐polyaniline hybrid (AG‐PANI) was characterized using UV‐vis, FTIR, 1 H NMR, and SEM. HCl doped AG‐PANI possesses zwitterion character due to the presence of NH 3 +on PANI and COO − of AG. The cyclic voltammogram of AG‐PANI showed three anodic peaks at 0.20 V, 0.58 V, and 0.64 V along with two cathodic peaks at 0.50 V and 0.40 V with large capacitive background currents. AG‐PANI exhibited electrical conductivity that was found dependent on the ratio of aniline to AG, temperature, and pH. Its electrical conductivity versus temperature plot indicated Mott's nearest‐neighbor hopping mechanism at the temperature range 83–323 K. The hybridization of AG and PANI yielded eco‐friendly advanced functional materials for technological applications. Copyright © 2008 John Wiley & Sons, Ltd.