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Issue 27, 2013
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Super liquid-repellent properties of electrodeposited hydrocarbon and fluorocarbon copolymers

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Abstract

To obtain superoleophobic properties, fluorinated compounds are necessary but they are toxic due to their bioaccumulative potential. This is why, in this article, we investigate superoleophobic materials with minimal fluorinated functions. The strategy used is to associate fluorinated monomer with hydrocarbon monomer, both having the same core (EDOP) in order to have the same oxidation potential for the electrodeposition. Smooth and rough copolymers are produced by the electrodeposition method controlling the deposition charge. In this article, we present the static and dynamic wettability properties of these copolymers with different proportions of fluorinated monomer with water (probe liquid for superhydrophobicity), sunflower oil, hexadecane, dodecane and octane (probe liquids of various surface tension for superoleophobicity) using scanning electron microscopy and optical profilometry. The study of wettability properties of smooth and rough copolymers also permits the determination of their intrinsic hydrophobicity/oleophobicity and to separate the effect of the chemical part from the physical one in the static contact angles. In this article, we show that EDOP-F8 proportion above about 75% is sufficient to obtain wettability properties close to PEDOP-F8 homopolymer, which has exceptional properties with water, sunflower oil and hexadecane. These performances are due to surface nanoporosities promoted by the presence of fluorinated functions. Moreover, the production of smooth copolymers reveals the effect of the chemical part from the physical one in the static contact angles. The chemical part represented between 57% and 74% following the EDOP-F8 fraction for water, about 55% for sunflower oil and about 44% for hexadecane.

Graphical abstract: Super liquid-repellent properties of electrodeposited hydrocarbon and fluorocarbon copolymers

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Publication details

The article was received on 05 Feb 2013, accepted on 07 May 2013 and first published on 08 May 2013


Article type: Paper
DOI: 10.1039/C3RA40636A
Citation: RSC Adv., 2013,3, 10848-10853
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    Super liquid-repellent properties of electrodeposited hydrocarbon and fluorocarbon copolymers

    J. Tarrade, T. Darmanin, E. T. de Givenchy and F. Guittard, RSC Adv., 2013, 3, 10848
    DOI: 10.1039/C3RA40636A

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