Facile Preparation of Transition Metal Nanoparticles Stabilized by Well-Defined (Co)polymers Synthesized via Aqueous Reversible Addition-Fragmentation Chain Transfer Polymerization
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- 4 September 2002
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 124 (39) , 11562-11563
- https://doi.org/10.1021/ja020556h
Abstract
Herein we disclose a facile method for the preparation of (co)polymer-stabilized transition metal colloids, via the “grafting-to” approach. The method takes advantage of the fact that (co)polymers synthesized in aqueous media, in a controlled fashion, via reversible addition-fragmentation chain transfer bear thiocarbonylthio end groups. These are readily reduced to yield (co)polymers with thiol end groups. When the reduction is performed, with NaBH4, for example, in aqueous media in the presence of an appropriate transition metal species, (co)polymer-stabilized metal nanoparticles are formed in which the size and size distribution are dependent upon the individual transition metals. Colloid formation is confirmed by transmission electron microscopy and UV−vis spectroscopy.Keywords
This publication has 10 references indexed in Scilit:
- Gold Nanoparticles with Covalently Attached Polymer Chains This work was supported by the Deutsche Forschungsgemeinschaft and by the Fonds der Chemischen Industrie. We are grateful to Prof. Dr. H. Weller, Institut für Physikalische Chemie der Universität Hamburg, for the transmission electron microscopy pictures and to Prof. Dr. M. Möller and Dipl.-Chem. Bernd Tartsch, Abteilung Organische Chemie III der Universität Ulm, for the scanning forcce microscopy investigations.Angewandte Chemie International Edition in English, 2001
- Polymer-Stabilized Gold Nanoparticles and Their Incorporation into Polymer MatricesJournal of the American Chemical Society, 2001
- Water-Soluble Polymers. 84. Controlled Polymerization in Aqueous Media of Anionic Acrylamido Monomers via RAFTMacromolecules, 2001
- Inhibition of DNA Transcription Using Cationic Mixed Monolayer Protected Gold ClustersJournal of the American Chemical Society, 2001
- Gold Glyconanoparticles as Water-Soluble Polyvalent Models To Study Carbohydrate InteractionsAngewandte Chemie International Edition in English, 2001
- Water-Soluble Polymers. 81. Direct Synthesis of Hydrophilic Styrenic-Based Homopolymers and Block Copolymers in Aqueous Solution via RAFTMacromolecules, 2001
- Electronic and Optical Properties of Chemically Modified Metal Nanoparticles and Molecularly Bridged Nanoparticle ArraysThe Journal of Physical Chemistry B, 2000
- Living Free-Radical Polymerization by Reversible Addition−Fragmentation Chain Transfer: The RAFT ProcessMacromolecules, 1998
- Alkanethiolate Gold Cluster Molecules with Core Diameters from 1.5 to 5.2 nm: Core and Monolayer Properties as a Function of Core SizeLangmuir, 1998
- Optical properties of aggregates of small metal particlesSurface Science, 1986