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Precisely Designed Gold Nanoparticles by Surface Polymerization : Artificial Molecules as Building Blocks for Novel Materials

Title data

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. Vol. 21 (7 October 2011) Issue 19 . - pp. 3753-3759.
ISSN 1616-301X
DOI: https://doi.org/10.1002/adfm.201100590

Official URL: Volltext

Project information

Project financing: BASF SE

Abstract in another language

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.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: RADICAL POLYMERIZATION
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II > Chair Macromolecular Chemistry II - Univ.-Prof. Dr. Andreas Greiner
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II
Result of work at the UBT: No
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 31 Mar 2015 10:34
Last Modified: 31 Mar 2015 10:34
URI: https://eref.uni-bayreuth.de/id/eprint/9526