Our research is directed towards controlling the distance between gold nanoparticles in a nanoparticle chain. We envisioned a method that employs two facile techniques, 1, 3-dipolar cycloaddition (Click Chemistry) and reversible addition chain-transfer polymerization (RAFT) to prepare our nanoparticle chains. Our gold nanoparticles were functionalized with thiolated alkyne molecules which exposed alkyne moieties on the nanoparticle surface. Utilizing a new RAFT compound successfully synthesized in our laboratory, bis (2-azidoethyl)-2, 2'thiocarbonylbis (sulfaniyl) bis (2-methypropanoate), we were able to link the nanoparticles via the azide alkyne cycloaddition. To demonstrate the control of chain length and nanoparticle distance we varied the reaction times of each RAFT polymerization.

Synthesis of gold nanoparticle chains via 1, 3-dipolar cycloaddition and reversible addition-fragmentation chain transfer (RAFT) polymerization

245th National Meeting (2013)

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