Using the method of suspension crosslinking polymerization and epichlo
rohydrin as the crosslinking agent, starch microspheres have been synt
hesized. And the effects of reacting parameters, including the surfact
ant concentration, stirring speed, two phases viscosities and densitie
s on the microspheres mean size (18-36mum) are also discussed. One equ
ation is deduced to demonstrate these effects: X = K . U(o)/U(w))0.03/
C0.04(D(o)/D(w))3.45N0.002