Gold‐Loaded Carbon Nanoparticles from Poly(vinyl alcohol)‐b‐poly(acrylonitrile) Non‐Shell‐Cross‐Linked Micelles |
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| Authors: | Rayna Bryaskova Dr Nicolas Willet Dr Anne‐Sophie Duwez Prof Antoine Debuigne Dr Laurent Lepot Bernard Gilbert Prof Christine Jérôme Prof Robert Jérôme Prof Christophe Detrembleur Prof |
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| Institution: | 1. Center for Education and Research on Macromolecules (CERM), Department of Chemistry, University of Liege, Sart‐Tilman B6a, 4000 Liège (Belgium), Fax: (+32)?436‐634‐97;2. Nanochemistry and Molecular Systems, Department of Chemistry, University of Liege, Sart‐Tilman B6a, 4000 Liège (Belgium);3. Analytic Chemistry and Electrochemistry, Department of Chemistry, University of Liege, Sart‐Tilman B6a, 4000 Liège (Belgium) |
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| Abstract: | Herein we show that a new amphiphilic poly(vinyl alcohol)‐b‐poly(acrylonitrile) block copolymer dispersed in water can be easily loaded with gold nanoparticles by addition of chlorauric acid followed by reduction by sodium borohydride. After deposition of the so‐loaded micelles onto a silicon wafer, followed by an appropriate thermal treatment, the poly(acrylonitrile) core of the micelles is carbonized, while the poly(vinyl alcohol) shell is completely decomposed and volatilized, leading to gold encapsulated in carbon nanoparticles. The morphology of the micelles is maintained during thermal treatment without requiring shell‐cross‐linking of the micelles prior to pyrolysis. |
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| Keywords: | block copolymers carbon nanoparticles poly(vinyl alcohol) self‐assembly |
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