Vol.3 No.1 (January 2013)
Preparation and Effects of Polystyrene Microspheres by Dispersion Polymerization
Polystyrene microspheres sized in sub micron were prepared by a dispersion polymerization with PVP as dispersant, H2O and ethanol as reaction medium, AIBN as initiator. The effects of H2O-ethanol ratio, string speed and amount of styrene, AIBN and PVP on particle size and distribution were discussed. Results show that PS spheres size could be preliminarily control. The component of reactant is the main effect of size and distribution, meanwhile, spin rate only effects sphere size.
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