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Two‐Dimensional, Open‐Pored, Mesoscopic Titania Layers Using Polymeric Nanoparticle Monolayers as a Template
Author(s) -
Cho Y.H.,
Cho G.,
Lee J.S.
Publication year - 2004
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200400249
Subject(s) - materials science , dispersity , polystyrene , mesoscopic physics , nanoparticle , monolayer , template , chemical engineering , dissolution , polymer , layer (electronics) , nanotechnology , toluene , polymer chemistry , composite material , organic chemistry , chemistry , quantum mechanics , physics , engineering
Open‐pored mesoscopic 2D titania layers (see Figure) were fabricated by using a nanoparticle layer as a template. Monodisperse polymer particles approximately 60 nm in diameter were spontaneously formed by dissolving polystyrene‐ b ‐poly( N ‐methyl‐2‐vinylpyridinium iodide) in toluene. These particles self‐assembled at the air–water interface to form well‐ordered monolayers, which were then used as templates in a sol–gel reaction to form porous 2D titania layers with a pore size of ∼ 55 nm.