Dallas, Panagiotis, Tomsik, Elena, Sang Jones, Ruth, Xiao, Albert, Milnes-Smith, Eleanor, Grobert, Nicole and Porfyrakis, Kyriakos ORCID: 0000-0003-1364-0261 (2019) Electrochemically active water repelling perfluorinated polyaniline films. Chemical Physics, 528:110540. ISSN 0301-0104 (doi:https://doi.org/10.1016/j.chemphys.2019.110540)

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Abstract

Water repelling, perfluorinated, polyanilines and their composites with multi-wall carbon nanotubes are synthesized using interfacial polymerization in either flake-like or fibrillar shapes. This class of polyanilines exhibits electrochemical activity, capacitive behaviour, and a contact angle of 119–125° with water. The addition of multi-wall carbon nanotubes facilitates the control of the polymer morphology and increases the specific capacitance of the material. We obtained microfibers or flake-like morphologies depending on the amount of multiwall carbon nanotubes added in the organic phase and through cyclic voltammetry, impedance spectroscopy and galvanostatic charge-discharge, we evaluated the effect of the backbone geometry and the addition of nanotubes on the electrochemical properties of the composites and the pristine polymers. The capacitance of the linear 3-perfluoroctyl polyaniline is consistently better than the cross-linked 4-perfluoroctyl polyaniline, where the para position relative to the amine group is blocked by fluorocarbon chains.

Item Type:	Article
Uncontrolled Keywords:	perfluorinated polyaniline, capacitance, hydrophobicity, microfibers
Subjects:	Q Science > QD Chemistry
Faculty / School / Research Centre / Research Group:	Faculty of Engineering & Science Faculty of Engineering & Science > School of Engineering (ENG)
Last Modified:	21 Sep 2020 01:38
URI:	http://gala.gre.ac.uk/id/eprint/25563

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