Tuning the Hydrophilicity of Gold Nanoparticles Templated in Star Block Copolymers
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Fustin, Charles-Andre; Colard, Catheline; Filali, Mariam; Guillet, Pierre; Duwez, Anne-Sophie; Meier, Michael; Schubert, Ulrich S.; Gohy, Jean-Francois
- Abstract:
- 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.
- Year:
- 2006
- Type of Publication:
- Article
- Journal:
- Langmuir
- Volume:
- 22
- Pages:
- 6690 - 6695