Abstract
Preparation of nano capsules using reverse micellar system were performed by in-situ polymerization of styrene and divinylbenzene on the surface of reverse micelle. The effect of preparation conditions on the encapsulation rate of water, average diameter and yield of nano capsules were investigated. The average diameter of nano capsules which diameter was ca. 600nm was not affected by the preparation conditions such as surfactant concentration, sodium chloride concentration in injection water, monomer ratio and pH in injection water. The encapsulation rate of water was affected by the surfactant concentration, the amount of injection water and sodium chloride concentration. On the other hand, the encapsulation rate was not affected by the pH in injection water. From this result, it is possible to prepare the nano capsule regardless of pH in the injection water. Finally, it is proven that the high encapsulation rate was obtained when the low surfactant concentration and the low quantity of injection water.
