Journal
LANGMUIR
Volume 26, Issue 3, Pages 2057-2067Publisher
AMER CHEMICAL SOC
DOI: 10.1021/la902565y
Keywords
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Funding
- Region Wallonne
- Science Policy Office of the Belgian Federal Government [PA16/27]
- FNRS-FRFC
- National Fund for Scientific Research (FRS-FNRS), Belgium
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Superhydrophobic surfaces are generated by chemisorption oil 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 oil 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 cm(2).
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