| Abstract
| - Cadmium selenide nanoparticles, prepared by known methods, were stabilized with functionalphosphine oxide 1, then used to support the polymerization of cyclic olefins radially outward from the surfaceby ruthenium-catalyzed ring-opening metathesis polymerization (ROMP). The conversion of compound 1into the new metathesis catalyst 3 by carbene exchange and the subsequent polymerization of cyclic olefinswere observed spectroscopically by 1H NMR to afford for example CdSe−polycyclooctene composite 6.Transmission electron micrographs on thin films of these composites showed good nanoparticle dispersion.This is in stark contrast to the substantial nanoparticle aggregation observed when similar polymerizationswere performed in the presence of conventional TOPO-covered nanoparticles. The methods reported hereto prepare composite product 6 are applicable to other cyclic olefins, and suggest that this chemistry willbe useful for incorporating CdSe nanoparticles into a wide variety of polymer matrices.
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