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Issue 21, 2014
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Superhydrophobic and oleophobic surfaces containing wrinkles and nanoparticles of PEDOT with two short fluorinated chains

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Abstract

Superhydrophobic and oleophobic surfaces are obtained by electrodeposition of original PEDOT derivatives containing two short fluorinated chains. The liquid-repellent properties are due to the combination of high intrinsic hydrophobicity and oleophobicity of polymers due the presence of two fluorinated chains, and the formation of wrinkles and spherical particles induced by the electrodeposition process. The presence of wrinkles and spherical particles and as a consequence the surface hydrophobicity and oleophobicity is correlated to the fluorinated chain length and electrochemical parameters (the deposition charge for the depositions at constant potential and the scan rate and number of scans for the depositions by cyclic voltammetry). Here, the increase in the number of wrinkles and spherical particles induces an increase in the surface roughness increasing especially the surface hydrophobicity while the surface oleophobicity is not always affected. However, it is also possible to increase the surface oleophobicity by a careful choice in the electrochemical parameters. This work also allows the elaboration of super liquid-repellent surfaces with low fluorine content (materials with low bioaccumulative potential).

Graphical abstract: Superhydrophobic and oleophobic surfaces containing wrinkles and nanoparticles of PEDOT with two short fluorinated chains

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Publication details

The article was received on 10 Dec 2013, accepted on 29 Jan 2014 and first published on 30 Jan 2014


Article type: Paper
DOI: 10.1039/C3RA47479H
RSC Adv., 2014,4, 10935-10943

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    Superhydrophobic and oleophobic surfaces containing wrinkles and nanoparticles of PEDOT with two short fluorinated chains

    A. Dramé, T. Darmanin, S. Y. Dieng, E. Taffin de Givenchy and F. Guittard, RSC Adv., 2014, 4, 10935
    DOI: 10.1039/C3RA47479H

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