Tuning the Hydrophilicity of Gold Nanoparticles Templated in Star-Block Copolymers

[en] We report on a simple procedure to tune the hydrophilicity of hybrid gold nanoparticles. The nanoparticles have been prepared in the core of a poly(ethylene glycol)-block-poly( -caprolactone) (PEG-b-PCL) five-arm star block copolymer. A hydrophilic corona was then added to these hybrid gold nanoparticles by direct chemisorption of trithiocarbonate-containing poly(acrylic acid) chains. These polymers were synthesized by RAFT polymerization with a trithiocarbonate as the chain-transfer agent. The efficiency of the grafting was evidenced by TEM, AFM, and DLS and by the successful transfer of these nanoparticles from organic solvent to water.

Disciplines :

Chemistry

Author, co-author :

Fustin, Charles-André; Université catholique de Louvain

Colard, Catheline; Université catholique de Louvain

Filali, Mariam; Université catholique de Louvain

Guillet, Pierre; Université catholique de Louvain

Duwez, Anne-Sophie ; Université catholique de Louvain. Present address: University of Liège

Meier, Michael A. R.; EindhoVen UniVersity of Technology, The Netherlands

Schubert, Ulrich S.; EindhoVen UniVersity of Technology, The Netherlands

Gohy, Jean-Francois; Université catholique de Louvain

Language :

English

Title :

Tuning the Hydrophilicity of Gold Nanoparticles Templated in Star-Block Copolymers

Publication date :

2006

Journal title :

Langmuir

ISSN :

0743-7463

eISSN :

1520-5827

Publisher :

American Chemical Society, Washington, United States - District of Columbia

Volume :

Pages :

6690-6695

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 18 May 2010

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