Recent advances in the elaboration of superhydrophobic/superoleophobic surfaces by electrodeposition of fluorinated conductive polymers

摘要

The obtaining of superhydrophobic and superoleophobic surfaces are of both theor. and practical interest, as has been reported in recent reviews. On the one hand, the wettability of rough solid surfaces is governed by their roughness / morphol. at the nano/micro scale and their low surface energy materials presented at the extreme surface. On the other hand, the spreading ability of liqs. is governed by their surface tension. Hence, the control of surface morphol. and wettability using liq. probes of various surface tensions is crucial in the development of non-wetting surfaces. Here, I will present the new advances obtained by our group in the development of superhydrophobic and superoleophobic surfaces by electrodeposition of conductive polymers bearing fluorinated chains. This technique is very versatile to produce non-wetting surfaces. Indeed, the surface morphol. and as a consequence the surface wettability can be controlled by not only electrochem. parameters but also by tuning the chem. structure of monomers (the figure below shows an exceptional example of surface morphol. control, from thin fibrils to extremely long fibers, by replacing oxygen atoms by sulfur ones).