[en] 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.
Research center :
Center for Education and Research on Macromolecules (CERM)
Disciplines :
Materials science & engineering Chemistry
Author, co-author :
Bryaskova, Rayna; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Willet, Nicolas ; Université de Liège - ULiège > Department of Chemistry > Nanochemistry and Molecular Systems
Duwez, Anne-Sophie ; Université de Liège - ULiège > Department of Chemistry > Nanochemistry and Molecular Systems
Debuigne, Antoine ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Lepot, Laurence; Université de Liège - ULiège > Department of Chemistry > Analytic Chemistry and Electrochemistry
Gilbert, Bernard ; Université de Liège - ULiège > Department of Chemistry > Analytic Chemistry and Electrochemistry
Jérôme, Christine ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Jérôme, Robert ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Detrembleur, Christophe ; Université de Liège - ULiège > Department of Chemistry > Center for Education and Research on Macromolecules (CERM)
Language :
English
Title :
Gold-loaded carbon nanoparticles from poly(vinyl alcohol)-b-poly(acrylonitrile) non-shell-cross-linked micelles
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