초록 |
Dispersion polymerization has been known as a useful technique to synthesize 1 - 10 micron sized-polymer colloids. However, in order to stabilize such polymer particles, the choice of steric stabilizers has been limited to a few amphiphilic polymers such as poly(vinylpyrrolidone) or hydroxyl propylcellulose. In this study, poly(vinyl alcohol) (PVA) was unprecedentedly employed as an effective stabilizer in the dispersion polymerization of MMA. Monodisperse PMMA microspheres are successfully produced in a mixture of alcohol/water using PVA as a stabilizer. Polymerization characteristics and properties of the PMMA particles are investigated. |