Preparation of Monodisperse PS Microspheres by Using Membrane Emulsification-drying Method in Liquid

Abstract

Abstract: The membrane emulsification method was adopted to prepare monodisperse polystyrene(PS) microspheres. Stable uniform-sized emulsion droplets were successfully obtained by pressing PS solution through the Shirasu Porous Glass(SPG) membrane into water solution containing emulsifiers at appropriate applied pressures. Monodisperse PS microspheres with size in the range of 2-20 μm were prepared by drying in liquid. The size of PS microspheres was strongly dependent on the pore size of SPG membrane and the concentration of PS solution. The size of the PS microspheres increased with the increase in the pore size of SPG membrane and the concentration of PS.

Key words: Membrane emulsification, Drying in liquid, PS microsphere, Polymer microsphere, Monodisperse

CLC Number:

O648

TrendMD:

BAO De-Cai, ZHANG Qiong-Gang, LIU Xiu-Dong, MA Xiao-Jun, YUAN Quan. Preparation of Monodisperse PS Microspheres by Using Membrane Emulsification-drying Method in Liquid[J]. Chem. J. Chinese Universities, 2004, 25(7): 1328.

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Preparation of Monodisperse PS Microspheres by Using Membrane Emulsification-drying Method in Liquid

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