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Micropatterning of Transparent Poly(Benzylsilsesquioxane) Thick Films Prepared by the Electrophoretic Sol–Gel Deposition Process Using a Hydrophobic–Hydrophilic‐Patterned Surface
Author(s) -
Takahashi Kenji,
Tadanaga Kiyoharu,
Hayashi Akitoshi,
Tatsumisago Masahiro,
Matsuda Atsunori
Publication year - 2006
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2006.01278.x
Subject(s) - wetting , contact angle , materials science , supercooling , glass transition , electrophoretic deposition , micropatterning , hydrophobic silica , chemical engineering , deposition (geology) , indium tin oxide , dewetting , oxide , layer (electronics) , composite material , nanotechnology , polymer , metallurgy , coating , paleontology , physics , sediment , biology , engineering , thermodynamics
Poly(benzylsilsesquioxane) (BnSiO 3/2 ) particles show glass transition behavior, and the particles become a supercooled liquid when they are heated at temperatures above the glass transition temperature. Contact angles of BnSiO 3/2 molten liquid on the hydrophobic surface with fluoroalkylsilane and hydrophilic surface with silica were found to be around 77° and 12°, respectively. Using the difference in wettability for BnSiO 3/2 molten liquid between the hydrophobic and hydrophilic surfaces, micropatterns of transparent BnSiO 3/2 ‐thick films were formed by the electrophoretic deposition of BnSiO 3/2 particles on indium tin oxide substrates with hydrophobic–hydrophilic patterns and subsequent heating above the glass transition temperature.