[en] Superhydrophobic surfaces are generated by chemisorption on aluminum substrates of fluorinated block copolymers synthesized by reversible addition−fragmentation chain transfer in supercritical carbon dioxide. In an appropriate solvent, those block copolymers can form micelles with a fluorinated corona, which are grafted on the aluminum substrate thanks to the presence of carboxylic acid groups in the corona. Water contact angle and drop impact analysis were used to characterize the wettability of the films at the macroscale, and atomic force microscopy measurements provided morphological information at the micro- and nanoscale. The simple solvent casting of the polymer solution on a hydroxylated aluminum surface results in a coating with multiscale roughness, which is fully superhydrophobic over areas up to 4 cm2.
Research Center/Unit :
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Chemistry Materials science & engineering
Author, co-author :
Desbief, Simon; University of Mons (UMons) > Centre d’Innovation et de Recherche en Matériaux (CIRMAP) > Service de Chimie des Matériaux Nouveaux et Laboratoire Interfaces et Fluides Complexes (InFlux)
Grignard, Bruno ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Detrembleur, Christophe ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Rioboo, Romain; University of Mons (UMons) > Laboratoire de Physique des Surfaces et des Interfaces (LPSI)
Vaillant, Alexandre; University of Mons (UMons) > Laboratoire de Physique des Surfaces et des Interfaces (LPSI)
Seveno, David; University of Mons (UMons) > Laboratoire de Physique des Surfaces et des Interfaces (LPSI)
Voué, Michel; University of Mons (UMons) > Laboratoire de Physique des Surfaces et des Interfaces (LPSI)
De Coninck, Joel; University of Mons (UMons) > Laboratoire de Physique des Surfaces et des Interfaces (LPSI)
Jonas, Alain M.; Université catholique de Louvain (UCL) > Institute of Condensed Matter and Nanosciences
Jérôme, Christine ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Damman, Pascal; University of Mons (UMons) > Centre d’Innovation et de Recherche en Matériaux (CIRMAP) > Laboratoire Interfaces et Fluides Complexes (InFlux)
Lazzaroni, Roberto; Univesity of Mons (UMons) > Centre d’Innovation et de Recherche en Matériaux (CIRMAP) > Service de Chimie des Marériaux Nouveaux
Language :
English
Title :
Superhydrophobic aluminum surfaces by deposition of micelles of fluorinated block copolymers
Publication date :
02 February 2010
Journal title :
Langmuir
ISSN :
0743-7463
eISSN :
1520-5827
Publisher :
American Chemical Society, Washington, United States - District of Columbia
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE] BELSPO - SPP Politique scientifique - Service Public Fédéral de Programmation Politique scientifique The "Région Wallonne" in the frame of the "CORRONET" program
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