| 초록 |
Poly(methyl methacrylate)/polyethylenimine (PMMA/PEI) core-shell polymer nanoparticles were synthesized via emulsifier-free emulsion polymerization using redox initiator tert-butyl hydroperoxide. The shell portion of nanoparticles were composed of PEI having many amine gorups, which could react with carbon dioxide(CO2). Because CO2 have been considered as a major greenhouse gas causing global warming, the reduction and removal of CO2 gas has received a great deal of current interest. Thus, the PMMA/PEI core-shell nanoparticles applied to CO2 adsorbents. The CO2 adsorption capacity was adjusted by the amount of PEI and investigated by thermo gravimetric analyzer(TGA). The morphology of nanoparticles was spherical in shape and well-defined core-shell nanostructure illustrated by scanning electron microscope(SEM) and transmission electron microscope(TEM). The presence of grafted PMMA on PEI was determined by fourier transform infrared spectroscope(FT-IR). |
