Release of toluene from micron-sized, monodispersed, cross-linked, hollow polymer particles

The release behavior of toluene from the hollow-inside, micron-sized, monod ispersed, crosslinked, polystyrene/polydivinylbenzene composite particles w hich had Various cross-linking densities and shell thicknesses was examined . The hollow particles were produced by seeded polymerization utilizing the dynamic swelling method which we proposed in 1991. In comparison with that from hollow-free particles, there was a clear difference. The cross-linkin g density and shell thickness of the hollow composite particles did not aff ect the release rate in the former period, but did it in the latter one.