Abstract
Highly crystalline polyaniline (PANI) with elongated chain-like nanostructures 20–35 nm in diameter and 60–80 nm in length were prepared using sodium dodecylbenzenesulfonic acid (SDBSA) in ice medium without stirring. The synthesized polyanilines were characterized by SEM, FTIR, and UV-Visible spectroscopy and XRD measurements. The formation of polyaniline/SDBSA salts insoluble in reaction system without stirring is found to be favourable for the formation of this clustered chain-like nanostructure. The temperature dependent conductivity measurement shows a thermally activated exponential behaviour of the chain-like polyaniline nanostructure. The melting point of the nanostructured polyaniline was found to be 253 °C.
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