| 초록 |
Since membrane performance is mostly determined by its permeability and selectivity, technical innovations in membrane technology have been concentrated on how to improve these two factors. In this study, we introduced a cooling crystallization method which could produce long range ordered super-porous membranes with highly interconnected porosity. By inducing the directional growth of solvent crystals at a controlled temperature gradient and removing them, crystal engineering played the key role in the structure formation of materials. Through this process, we could effectively produce membranes with interconnected porosity because continuously grown solvent crystals were converted to pores. Using solvent mixtures, we could control pore size and morphology in a wide range. The porosity of the samples ranged from 70 to 93%, and these membranes had regularly arrayed pores which in turn guaranteed a fast pure water flux. |
