Surface modifications are keys for a great number of applications. In order to perfectly control the surface properties, it is important to control the modification pathways. Two general pathways can be described in order to introduce modification on surfaces: the post-strategies and the ante-strategies. In this work, we focus on the comparison between the Huisgen and the Staudinger-Vilarrasa reaction for both post-surface and ante-surface modifications. Here, we focused on the possibility to use both two reactions to obtain superhydrophobic and oleophobic properties. This work includes monomer synthesis, surface modifications with alkyl, aryl or perfluoroalkyl chain.
Here, the combination of both the Staudinger reductive amination and amidification to prepare highly hydrophobic surfaces is reported for the first time. This approach has been studied for surface ante and post‐deposition modification. In the ante‐deposition approach, the combination of both the reactions allows to develop a one‐pot new monomer bearing two different side chains (heterobifunctional surface). The developed monomer has been successfully polymerized and leads to hydrophobic surface (θ > 110°). Similar modifications performed as post‐treatment lead to highly hydrophobic feature (θ > 120°). The difference between the ante and post‐deposition modification is investigated for their roughness and morphologies. The results of this work allow explaining this difference on surface feature and show quality and drawback of both ante and post‐deposition strategies.
The cover picture shows electrodeposited conducting polymer films with different surface morphologies which were prepared from bifunctional monomers. Thanks to a flexible strategy, a number of bifunctional monomers could be obtained in a one‐pot reaction through Staudinger reductive amination and subsequent amide formation. Details are given in the Full Paper by Thierry Darmanin, Guilhem Godeau, and co‐workers on page 1245 in Issue 10, 2017 (DOI: 10.1002/cplu.201700256).
Back Cover: This cover page shows how the Staudinger reductive amination and amidification can be used to change, by introducing bifunctional groups, the surface morphology and hydrophobicity. This is reported by Emna El Kout, Rawia Ben Trad, Mejda El Kateb, Mohammed Beji, Jean‐Pierre Laugier, Guilhem Godeau,* Frédéric Guittard, and Thierry Darmanin* in article number https://doi.org/10.1002/macp.201700250.
The control of surface wettability is a key parameter for many application fields (materials, biomedical engineering, etc.). In this work, a new and efficient strategy to synthesize monomers suitable for hydrophobic surface elaboration is reported. This original approach allows the preparation of monomers and, as a consequence, surfaces bearing two different substituents by using the Staudinger reductive amination and amidification. Rough conducting polymer films were prepared by electropolymerization. The original surfaces reported here are highly structured surfaces with tunable hydrophobic features. Depending on the grafted chains, the surfaces are hydrophilic (PEDOT‐Benz‐Ph, θ=80 °; PEDOT=poly(3,4‐ethylenedioxythiophene)), hydrophobic (PEDOT‐Benz‐C12, θ=132 °), or even superhydrophobic (PEDOT‐Benz‐F8, θ=152 ° (α=5.0 °, H=0.3 °).
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