| 초록 |
The optimum conditions for preparing micron-sized monodisperse polymethylmethacrylate (PMMA) particles by the dispersion polymerization in methanol/water mixture were proposed. PMMA microspheres having the molecular weight of 55,300 g/mol, 2.6 m of weight-average diameter (Dw) with 5.3 % of the coefficient of variation (Cv), and 91% conversion were successfully obtained with 15 wt% of polyvinylalcohol (PVA) in 100/50(g/g) of MeOH/water mixtures at 70 C for 8 hours of the reaction. Compared to the dispersion polymerization using polyvinylpirrolydone (PVP), PVA proved to be an stable steric stabilizer in the dispersion polymerization of MMA. |
