PMSE 29 |
| Nitroxide-mediated radical polymerization, atom transfer radical polymerization (ATRP), and reversible addition-fragmentation-chain transfer (RAFT) polymerization have been used for the preparation of block copolymer/metal nanoparticle composites. The phase-separation of block copolymers in bulk and in solution presents opportunities for the localization of the specific chemical functionality displayed by a given polymeric block to well-defined nanometer-scale domains. For potential applications in electronic and magnetic materials, the use of phase-separated copolymer systems for the formation, stabilization, and localization of metallic species, such as nanoparticles or nanoclusters, on the nanometer scale is a topic of great interest. We have prepared block copolymers with alkyne-functional blocks for the subsequent preparation of cobalt nanoparticles by direct nitroxide-mediated polymerization of alkyne-functional monomers. Aspects of the synthesis and characterization of these and related materials will be presented, as will routes to systems in which two different classes of nanoparticles are present involving di- and triblock copolymers. |
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Synthesis and Self-Assembly Approaches to Polymer-Inorganic Hybrid Nanoparticles
1:30 PM-4:50 PM, Sunday, April 6, 2008 Hilton New Orleans Riverside -- Grand Salon 24, Oral
Division of Polymeric Materials: Science & Engineering |