Membrane emulsification - a versatile tool for the synthesis of polymeric microspheres

A new emulsification technique by using a particular glass membrane was int roduced. The membrane, having a narrow pore size distribution, produced fai rly monodisperse oil droplets by carefully pushing the oil phase through th e pore to an aqueous solution of stabilizers. Subsequent suspension polymer ization of the monomer droplets or evaporation of solvent from the polymer solution yielded uniform polymer particles. Magnetite microcapsules and hyb rid polymer particles including inert substances for polymerization were al so prepared by this unique emulsification.