Titelangaben
Bokern, Stefan ; Gries, Katharina ; Goertz, Hans-Helmut ; Warzelhan, Volker ; Agarwal, Seema ; Greiner, Andreas:
Precisely Designed Gold Nanoparticles by Surface Polymerization : Artificial Molecules as Building Blocks for Novel Materials.
In: Advanced Functional Materials.
Bd. 21
(2011)
Heft 19
.
- S. 3753-3759.
ISSN 1616-3028
DOI: https://doi.org/10.1002/adfm.201100590
Angaben zu Projekten
Projektfinanzierung: |
BASF SE |
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Abstract
The synthesis of gold nanoparticles (2-4 nm) carrying a single functional polystyrene chain and its characterization by gel permeation chromatography are reported. This has been achieved by a new type of macromolecular azo-initiator based on telechelic polystyrene with containing alpha,omega-methylcoumarin endgroups and an azo group in the middle of the polystyrene. The structure and the near-quantitative functionality of the initiator have been verified by performing NMR, GPC, and UV-vis measurements. This macroinitiator has been used to initiate a surface polymerization of 4-vinylthiophenol molecules immobilized on the surface of gold nanoparticles. As a product, gold nanoparticles carrying exactly one polystyrene chain have been synthesized with functionalization degrees of up to 90% (crude yield). Proof and quantification of the functionalization degree have been demonstrated by application of a GPC setup with a diode array detector for online UV-vis spectra.
Weitere Angaben
Publikationsform: | Artikel in einer Zeitschrift |
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Begutachteter Beitrag: | Ja |
Keywords: | RADICAL POLYMERIZATION |
Institutionen der Universität: | Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie > Lehrstuhl Makromolekulare Chemie II > Lehrstuhl Makromolekulare Chemie II - Univ.-Prof. Dr. Andreas Greiner Fakultäten Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie > Lehrstuhl Makromolekulare Chemie II |
Titel an der UBT entstanden: | Nein |
Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik > 540 Chemie |
Eingestellt am: | 31 Mär 2015 10:34 |
Letzte Änderung: | 25 Feb 2022 08:05 |
URI: | https://eref.uni-bayreuth.de/id/eprint/9526 |