Surfaces Bearing Fluorinated Nucleoperfluorolipids for Potential Anti-Graffiti Surface Properties

Guilhem Godeau,Thierry Darmanin,Frédéric Guittard

doi:10.3390/coatings7120220

Guilhem Godeau, Thierry Darmanin + Show 1 more

Open Access

https://doi.org/10.3390/coatings7120220

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Journal: Coatings	Publication Date: Dec 4, 2017
Citations: 6	License type: CC BY 4.0

Affiliation: Institute of Biology Valrose, Université Côte d'Azur

Abstract

Graffiti can sometimes be a problem when put in an inappropriate place. We looked at a means to prevent such inconvenience. In this work, we explore the possibility of developing surfaces with controlled wettability. If the paint does not spread, the graffiti does not stay. Here, the synthesis and electrodeposition of original 3,4-ethylenedioxythiophene (EDOT) with perfluorinated nucleolipids (ante approach) is reported. The elaboration of similar surfaces using post functionalization is also described. All the prepared surfaces were then investigated for their roughness, wettability, and morphology. Highly hydrophobic features are reported (θ = 137°) and oleophobic properties are also reported (θ = 110°) showing real potential for the control of surface wettability and for potential anti-graffiti applications, consequently. The surfaces obtained with the ante approach are rougher and more hydrophobic.

Highlights

Surface wettability is a key parameter for a wide range of applications [1,2,3,4]
We reported for the first time preparation—using both ante and post functionalization—of PEDOT surfaces with perfluorinated nucleolipids
The surface developed using functionalization—of PEDOT surfaces with perfluorinated nucleolipids

Summary

Introduction

Surface wettability is a key parameter for a wide range of applications [1,2,3,4]. Among these applications, antigravity is one of particular interest [5,6]. The control of the paint spreading on surfaces is a powerful strategy to avoid monument degradation by unauthorized artwork. The control of the wettability is well known and various examples have been observed in nature [7,8,9,10]. If the lotus leaf remains one of the more popular example, several other examples exist such as the rice leaf, the Echeveria leaf, water striders, fishing spiders, etc. Spectacular oleophobic properties have been reported on springtails [11,12]

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