| 초록 |
Development of asymmetric membranes has enabled to apply polymer materials to membrane separation due to its high flux. Theperformances of asymmetric membranes are based on the membrane structure consisted of athin effective layer and porous supporting layers. In this study, poly(amic acid) containing hydroxyl group (HPAA) was used to induce polybenzoxazole membranes by thermal rearrangement reported to exhibit extraordinary gas permeation properties. Dope solutions (HPAA/solvent/non-solvent) undergo phase inversion, and thermally treated to obtain TR membranes. Gas separation performances of the membranes were characterized and analyzed using FE-SEM. |
