title: Functionalized nanoporous thin films from metallo-supramolecular diblock copolymers.
abstract: A polystyrene-[Ni(2+)]-poly(ethylene oxide) metallo-supramolecular block copolymer (PS-[Ni(2+)]-PEO), where -[ is a terpyridine, is used to create nanoporous thin films with free terpyridine ligands homogenously distributed on the pore walls. The PS-[Ni(2+)]-PEO block copolymer is synthesized by a two step assembly process, and is then self-assembled into a thin film in order to obtain PEO cylinders oriented perpendicularly to the film surface. The supramolecular junction is opened by exposing the film to an excess of a competing ligand, and the free PEO block is then rinsed away by a selective solvent. The presence of the terpyridines on the pore walls is evidenced by fluorescence spectroscopy after formation of a fluorescent complex with an europium salt.
authors.affiliation: Institute of Condensed Matter and Nanosciences, Bio- and Soft Matter (BSMA), Université catholique de Louvain, Place Pasteur 1, 1348 Louvain-la-Neuve, Belgium.
authors.forename: Clément
authors.initials: C
authors.lastname: Mugemana
authors.forename: Jean-François
authors.initials: JF
authors.lastname: Gohy
authors.forename: Charles-André
authors.initials: CA
authors.lastname: Fustin
mesh_terms: D046911:Macromolecular Substances / Q000737:chemistry; D008567:Membranes, Artificial; D015394:Molecular Structure; D049329:Nanostructures / Q000737:chemistry*; D009532:Nickel / Q000737:chemistry; D009942:Organometallic Compounds / Q000737:chemistry*; D010316:Particle Size; D011092:Polyethylene Glycols / Q000737:chemistry; D011137:Polystyrenes / Q000737:chemistry; D013499:Surface Properties
chemical_list: D046911:Macromolecular Substances; D008567:Membranes, Artificial; D009942:Organometallic Compounds; D011137:Polystyrenes; D011092:Polyethylene Glycols; D009532:Nickel