| 초록 |
We present the preparation of crosslinked polyethyleneimine with and without mesoporous nanoparticles and their CO2 adsorption performance. Mesoporous nanoparticles were prepared with cetyltrimethylammonium bromide (CTAB) as a template and tetraethyl orthosilicate (TEOS) supported by triethanol amine (TEA). Polyethyleneimine (PEI) was crosslinked with 4,4’-methylenebis(phenylisocyanate) (MPI) as a linker. Mesoporous nanoparticles were added to the PEI network structure to compare the adsorption property. The physicochemical characteristics of crosslinked PEI composites were analyzed by transmission electron microscopy (TEM), scanning electron microscope (SEM), Fourier-transform infrared spectroscopy (FT-IR), nitrogen adsorption-desorption and so on. In conclusion, we obtained the hierarchical structured PEI network structure and the crosslinked composites exhibited different CO2 adsorption performance depending on the composition. |
