| 초록 |
Hollow and porous polymer microparticles are of great significance for their potential application due to their high specific surface area and low density, which can be widely used in various fields such as catalyst, drug-targeted delivery and release. In this study, a simple method was developed to produce monodisperse microparticles with unique structures. When polystyrene solid microparticles prepared using modified dispersion polymerization were dispersed in an ethanol-water-toluene mixture at room temperature, they transformed into PS microparticles with unique shapes as a result of uptake of the continuous phase. In addition, metal nanocrystals were produced in situ from metal precursors on the surface of porous polymer particles. When the hybrid particles were used as catalysts, they showed excellent catalytic performance and reusability at low catalyst concentration for the reduction of 4-nitrophenol to 4-aminophenol using sodium borohydride as the reducing agent. |
