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Polymers 2016, 8(3), 81; doi:10.3390/polym8030081

Surface Property Modification of Silver Nanoparticles with Dopamine-Functionalized Poly(pentafluorostyrene) via RAFT Polymerization

Centre for Advanced Macromolecular Design, The School of Chemical Engineering, University of New South Wales, Kensington NSW 2052, Australia
These authors contributed equally to this work.
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Author to whom correspondence should be addressed.
Academic Editor: Nicolay V. Tsarevsky
Received: 25 January 2016 / Revised: 3 March 2016 / Accepted: 9 March 2016 / Published: 14 March 2016
(This article belongs to the Special Issue Controlled/Living Radical Polymerization)
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Abstract

This research aims to synthesize a dopamine-functionalized macromolecular anchor to perform surface modification on the target nanostructures. A molecular anchor, 3,4-dichloro-1-[2-(3,4-dihydroxyphenyl)ethyl]-1H-pyrrole-2,5-dione, was successfully synthesized from dopamine and 2,3-dichloromaleic anhydride. The anchor acted as a linkage to couple the chains of poly(pentafluorostyrene) (PPFS) which were synthesized via reversible addition fragmentation chain transfer (RAFT) polymerization. Modification was successfully performed to silver nanoparticles (AgNPs) by deposition of the dopamine-functionalized coupled PPFS onto the surface of the particles. The modified AgNPs had demonstrated improved dispersibility in organic solvent due to the hydrophobic nature of PPFS. To modify the surface chemistry of the nanoparticles further, thioglucose was grafted onto the structure of the coupled PPFS via thiol-fluoro nucleophilic substitution at the para-position of the pentafluorophenyl groups on the monomer units. The presence of sugar moieties on the coupled PPFS increased its hydrophilicity, which allowed the modified AgNPs to be readily dispersed in aqueous solvent. View Full-Text
Keywords: RAFT polymerization; poly(pentafluorostyrene); silver nanoparticles; glycopolymer RAFT polymerization; poly(pentafluorostyrene); silver nanoparticles; glycopolymer
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Fan, K.W.; Granville, A.M. Surface Property Modification of Silver Nanoparticles with Dopamine-Functionalized Poly(pentafluorostyrene) via RAFT Polymerization. Polymers 2016, 8, 81.

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