POLY 307 |
| We describe the synthesis of spherical and rod-like nanostructures of gold coated with organic molecules. Our strategy involves the preparation of gold clusters passivated with a functional thiol 4-mercaptophenol, which allows for coupling of carboxyl-terminated molecules under mild esterification conditions. This grafting-to approach results in a surprisingly high grafting density which is about 1.9 chains/nm2 and 1.35 chains/nm2 for nanoparticles and nanorods, respectively. The presence of multiple organic arms makes gold nanostructures soluble in a variety of solvents and influences their aggregation in solution and in the solid-state. |
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Nanoparticles and Microparticles: Synthesis and Applications
1:30 PM-5:10 PM, Monday, 11 September 2006 San Francisco Marriott -- Salon C3, Oral
Division of Polymer Chemistry |