Home > Publications database > Polymer-Coated PtCo Nanoparticles Deposited on Diblock Copolymer Templates: Chemical Selectivity versus Topographical Effects > print

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024 7 _ |a 10.1002/cphc.201402047
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100 1 _ |a Metwalli, E.
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245 _ _ |a Polymer-Coated PtCo Nanoparticles Deposited on Diblock Copolymer Templates: Chemical Selectivity versus Topographical Effects
260 _ _ |a Weinheim
|c 2014
|b Wiley-VCH Verl.
336 7 _ |a Journal Article
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500 _ _ |a WILEY-VCH Verlag GmbH & Co. KGaA. Post referee full text in progress. Embargo full text 1 year from 18 MAY 2014.
520 _ _ |a Metal–polymer hybrid films are prepared by deposition of polymer-coated PtCo nanoparticles onto block copolymer templates. For templating, a thin film of the lamella-forming diblock copolymer poly(styrene-b-methyl methacrylate) P(S-b-MMA) is chemically etched and a topographical surface relief with 3 nm height difference is created. Two types of polymer-grafted PtCo nanoparticles are compared to explore the impact of chemical selectivity versus the topographical effect of the nanotemplate. A preferable wetting of the polystyrene (PS) domains with poly(styrenesulfonate) (PSS)-coated PtCo nanoparticles (instead of residing in the space between the domains) is observed. Our investigation reveals that the interaction between PSS-coated nanoparticles and PS domains dominates over the topographical effects of the polymer surface. In contrast, a non-selective deposition of poly(N-vinyl-2-pyrrolidone) (PVP)-coated PtCo nanoparticles and the formation of large metal-particle aggregates on the film is observed.
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700 1 _ |a Krisch, I.
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700 1 _ |a Markovits, I.
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700 1 _ |a Rawolle, M.
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700 1 _ |a Guo, S.
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700 1 _ |a Perlich, Jan
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700 1 _ |a Lercher, J. A.
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700 1 _ |a Müller-Buschbaum, P.
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773 _ _ |a 10.1002/cphc.201402047
|g Vol. 15, no. 11, p. 2236 - 2239
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