A combination of small-angle neutron scattering (SANS), conductivity, and s
urface tension measurements is used to show that the primary droplets in mi
niemulsion polymerization have the same size and the same size distribution
as the final particles. It is also shown that hexadecane employed as a cos
urfactant is homogeneously dispersed in the droplets find does not possess
any interface activity. The presented data support that a 1 : 1 copy from m
onomer droplets to polymer particles is achieved.