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Electrochemically active water repelling perfluorinated polyaniline films

Electrochemically active water repelling perfluorinated polyaniline films

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 / Department / Research Group: Faculty of Engineering & Science
Faculty of Engineering & Science > Department of Engineering Science
Last Modified: 14 Oct 2019 14:02
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
Selected for GREAT 2019: None
URI: http://gala.gre.ac.uk/id/eprint/25563

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