Preparation of 'Confetti' Particles by Dispersion Copolymerization of Acrylonitrile/Styrene with Poly(ethylene glycol) Macromonomer

摘要

The novel spherical particles on which nano-projections were uniformly distributed over the whole surface like "confetti" were prepared by dispersion copolymerization of acrylontrile with styrene in ethanol/water mixed solvents in the presence of poly(ethylene glycol) (PEG) macromonomer. Transmission electron microscopy and laser light scattering studies showed particles with a narrow size-distribution. The diameter (ca. 150-1000 nm) was controlled by changing the solvent composition and concentration of the PEG macromonomer.