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Transparent superhydrophobic surfaces by self‐assembly of hydrophobic monolayers on nanostructured surfaces
Author(s) -
Kemell Marianna,
Färm Elina,
Leskelä Markku,
Ritala Mikko
Publication year - 2006
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.200566127
Subject(s) - monolayer , contact angle , nanoporous , materials science , porosity , self assembly , chemical engineering , nanotechnology , self assembled monolayer , phase (matter) , chemistry , composite material , organic chemistry , engineering
Abstract Transparent superhydrophobic surfaces were prepared by self‐assembly of hydrophobic n‐octa‐ decyltrimethoxysilane (H 3 C(CH 2 ) 17 Si(OCH 3 ) 3 , ODS) and (3,3,3‐trifluoropropyl)trimethoxysilane (F 3 C(CH 2 ) 2 Si(OCH 3 ) 3 , FAS3) monolayers from gas phase on transparent nanoporous alumina surfaces. Water contact angles on the silylated transparent porous alumina surfaces showed a strong dependence on the dimensions of the underlying porous structure. The highest contact angle (153°) was measured on an ODS monolayer on a porous alumina surface that had a pore diameter of about 50 nm. The superhydrophobic surfaces prepared in this work are transparent and stable which widens the range of their potential applications. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)