NDLI: Facile preparation of size-controlled gold nanoparticles using versatile and end-functionalized thioether polymer ligands

Content Provider	Royal Society of Chemistry (RSC)
Author	Huang, Xin Zhang, Hui Liang, Liyun Hussain, Irshad Li, Buyi Tan, Bien
Copyright Year	2011
Abstract	At present, thiol ligands are generally used whenever the classical Brust–Schiffrin two-phase method is employed to prepare metal nanoparticles. In general, the previous research was mainly focused on utilizing small molecular thiol compounds or thiol polymers as the stabilizers in organic phase to obtain small sized and uniform gold nanoparticles (Au NPs). Such preparations are usually associated with the problems of ligand exchange on the nanoparticle's surface due to strong Au–thiol interaction. Herein, we report an approach to produce fairly uniform Au NPs with diameters about 2–6 nm using thioether end-functional polymer ligands (DDT–PVAc and PTMP–PVAc) as the capping agents. These nanoparticles are thoroughly characterized using DLS, TEM, UV-Vis spectroscopy and other complementary techniques. The results indicate that multidentate thioether polymeric ligands (PTMP–PVAc) lead to formation of smaller but special ‘multimer’ morphology in organic phase; whereas fairly uniform nanoparticles are produced using monodentate thioether functionalized ligands (DDT–PVAc). Further modification of such polymer ligands to introduce the hydrophilic functionalities realizes the phase transfer of Au NPs from organic to aqueous media.
Starting Page	1600
Ending Page	1607
Page Count	8
File Format	HTM / HTML PDF
ISSN	20403364
Volume Number	3
Issue Number	4
Journal	Nanoscale
DOI	10.1039/c0nr00835d
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Schiffrin Thioether Thiol Ligand Nanoparticle Polymer Brust Transmission electron microscopy Ultraviolet\u2013visible spectroscopy Dynamic light scattering Classical mechanics Denticity Hydrophile
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology

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