| Abstract
| - Effects of the kind and concentration of stabilizers on the nonspherical shape of polystyrene (PS)/poly(methylmethacrylate) (PMMA) composite particles prepared by release of toluene from PS/PMMA/toluene droplets dispersedin stabilizer aqueous solution were examined. In the case of poly(vinyl alcohol), the surfaces of the obtained particlesalways had a single dimple. In the case of sodium dodecyl sulfate (SDS), the shapes of the composite particles changedfrom the dimple, via acorn, to spherical with increasing SDS concentration. It was clarified that the dimple and acornshapes of the PS/PMMA composite particles were caused by contraction of the PS phase after hardening of the PMMAphase in excentered core−shell and hemisphere morphologies, respectively, which were formed by phase separationduring toluene evaporation.
|
