| 초록 |
The structure and property of poly(N-isopropylacrylamide)(PNIPAM) known as a thermoresponsive polymer can be controllable by external stimuli such as temperature and pH. Due to its unique characteristics of PNIPAM, many studies have been tried to form polymeric nanoparticles combining PNIPAM with cerium oxide(CeO2) for the applications of chemical delivery, catalyst, sensor, biomedical, and so on. In this work, core-shell polymeric nanoparticles were prepared through the seeded emulsion polymerization of a cerium nitrate hexahydrate monomer under the presence of PNIPAM particles. Stable core-shell polymeric nanoparticles were obtained in which CeO2 attached small domains on the surface of the PNIPAM particles. Their morphology and size distribution were measured by scanning electron microscope (SEM), transmission electron microscope(TEM), and dynamic light scattering(DLS). The absorption and release testing of chemical of the nanoparticles were studied by UV/vis spectroscopy(UV/vis). |
