| 초록 |
Microporous covalent organic networks have attracted for gas storage, separation, and catalysis because of their fine porosity. However, the organic networks produced typically intractable solids or gels which cause limited processability. In this study, 3D-crosslinked microporous polyurea network was synthesized from tetrafunctionalized spirobifluorene derivatives, and also we were able to obtain colloidal dispersions (sols) by using the sol-gel method. We confirmed the microporous characteristics of polyurea networks by carbon dioxide adsorption isotherms and polyurea nanopaticles defined by dynamic light scattering, atomic force microscope, and scanning electron microscope. |
