Size controlled synthesis of sub-100Â nm monodisperse poly(methylmethacrylate) nanoparticles using surfactant-free emulsion polymerization

We demonstrate a single step synthetic approach that yields poly(methylmethacrylate) (PMMA) nanoparticles with controlled sub-100 nm size and relatively high resultant solid content. Acetone was used as a cosolvent in order to obtain monodisperse sub-100 nm diameter particles. Stable dispersions were obtained for all formulations where the persulfate initiator causes the negative charges on the particle surface.