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Metal nanoparticles in the template of poly(2-ethyl-2-oxazoline)-block-poly(ε-caprolactone) micelle

Research paper by Chiyoung Park, Mikyo Rhue, Jino Lim, Chulhee Kim

Indexed on: 01 Feb '07Published on: 01 Feb '07Published in: Macromolecular Research



Abstract

The amphiphilic block copolymer (PEtOz-PCL) of poly(2-ethyl-2-oxazoline) (PEtOz) and poly(ε-caprolactone) (PCL) formed spherical micellar structures with an average diameter of 26 nm in aqueous phase. Au and Pd nanoparticles with an average diameter of 2∼3 nm were prepared by using the PEtOz-PCL micelle consisting of a PEtOz shell and PCL core. The Au nanoparticles of PEtOz-PCL micelles in aqueous phase could be transferred into organic phase by using n-dodecanethiol. The use of the Pd-NP/PEtOz-PCL micelle as a nanoreactor for Suzuki cross-coupling reaction was investigated.