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| - Ordered Reactive Nanomembranes/Nanotemplates from ThinFilms of Block Copolymer Supramolecular Assembly
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| - We report on a unique, very simple method of preparation of reactive membranes andnanotemplates with nanoscopic cylindrical channels on the surface of various inorganic and polymericsubstrates. Well-ordered nanostructured thin polymer films have been fabricated from the supramolecularassembly of poly(styrene-block-4-vinylpyridine) (PS-PVP) and 2-(4‘-hydroxybenzeneazo)benzoic acid(HABA), consisting of cylindrical nanodomains formed by PVP-HABA associates surrounded by PS.Alignment of the domains has been shown to be switched upon exposure to vapors of different solventsfrom the parallel to perpendicular orientation to the confining surface and vice versa. The alignment of thecylindrical nanodomains is insensitive to the composition of the confining surface due to the self-adaptivebehavior of the supramolecular PVP-HABA assembly. Extraction of HABA with selective solvent results innanomembranes with a hexagonal lattice (24 nm in the period) of hollow channels of 8 nm in the diametercrossing the membrane from the top to the bottom. The walls of the channels are constituted from reactivePVP chains. The channels were filled with Ni clusters via the electrodeposition method to fabricate theordered array of metallic nanodots of 1.2 tera per cm2.
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