Monodisperse polystyrene microspheres are prepared by shell porous glass (SPG)-suspension polymerization.The influences of SPG on size and size dispersity of the microspheres are investigated.The properties of the microspheres are studied by GPC
TEM and SEM.The results indicate that the polystyrene microspheres possess definite monodispersibity and their particle size is in the range of 5~12 μm.