| 초록 |
The characteristics of the seed particle (i.e. total surface area, amount, number density, surface charge density, etc.) are important factors in seeded emulsion polymerization. Experiments and mathematical modeling were carried out in the emulsifier-free seeded emulsion polymerization of methyl methacrylate in order to investigate the effect of the amount and the surface charge density of seed particle. The mathematical modeling was developed to evaluate the concentration of oligomeric radicals in aqueous phase and the precursor particle evolution according to the surface charge density of seed particle. In this experiment, the two stage shot process was introduced to prepare the seed latex particle in order to show the effect of surface charge density on particle size distribution.
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