A Perfectly Hydrophobic Surface (θA/θR = 180°/180°)

A perfectly hydrophobic surface with both advancing and receding water contact angles of 180° was prepared using a facile method on a silicon wafer. Phase separation of a toluene-swollen covalently attached methylsilicone results in a nanoscale network structure that is responsible for the superhydr...

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Veröffentlicht in:	Journal of the American Chemical Society 2006-07, Vol.128 (28), p.9052-9053
Hauptverfasser:	Gao, Lichao, McCarthy, Thomas J
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: structure, mechanical and thermal properties Exact sciences and technology Physics Solid-fluid interfaces Surfaces and interfaces thin films and whiskers (structure and nonelectronic properties) Wetting
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Beschreibung
Zusammenfassung:	A perfectly hydrophobic surface with both advancing and receding water contact angles of 180° was prepared using a facile method on a silicon wafer. Phase separation of a toluene-swollen covalently attached methylsilicone results in a nanoscale network structure that is responsible for the superhydrophobicity. A method for testing extreme hydrophobicity was devised to distinguish between surfaces exhibiting contact angles of 180 and 179°.
ISSN:	0002-7863 1520-5126
DOI:	10.1021/ja062943n