Journal
EUROPEAN POLYMER JOURNAL
Volume 45, Issue 6, Pages 1625-1633Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eurpolymj.2009.03.016
Keywords
Click chemistry; Gold nanoparticles; pH responsive; RAFT
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Funding
- National Nature Science Foundation of China [50573080]
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in this report, we demonstrated a novel efficient post-modification route for preparation of smart hybrid gold nanoparticles with poly(4-vinylpyridine) (P4VP) based on RAFT and click chemistry. A new azide terminated ligand was first synthesized to modify gold nanoparticles by ligand exchange reaction, and then click reaction was used to graft alkyne terminated P4VP which was prepared by RAFT onto the surface of gold nanoparticles. The functionalized hybrid gold nanoparticles were characterized by TEM, FTIR, and XPS etc. The results indicated that the P4VP was successfully grafted onto the surface of gold nanoparticles by click reaction. The surface grafting density was calculated to be about 6 chains/nm(2). In addition, the hybrid gold nanoparticles showed a pH responsive phenomenon as the pH value changed around 5. Crown Copyright (C) 2009 Published by Elsevier Ltd. All rights reserved.
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