| 초록 |
In this study, we synthesized a series of comb-like copolymers poly (2- hydroxypropyl-2-(methacryloyloxy) ethyl phthalate-co-acrylic acid) (PHMEP-co-PAA) to use as a template for facilitating CO transport membrane. AgBF4 and ionic liquid ([bmim][BF4]) were also introduced to the PHMEP-co-PAA matrix to prevent comb copolymer aggregation and improve CO/N2 separation performance. Specifically, the phthalate and carboxyl group in the copolymer effectively incorporated into the Ag ions via chelation. Furthermore, we carried out the molecular dynamic simulation to engineering the definite mechanism of facilitated CO transport. The gas separation performance of PHMEP-co-PAA/AgBF4/IL membranes was also investigated with the monomeric ratio of PHMEP-co-PAA copolymer. When the membrane was optimized through high PHMEP content (70 wt%) and high Ag ions loading (copolymer: AgBF4 = 1:4), the best separation performance was achieved; CO/N2 selectivity of 16.2 with a CO permeance of 2.1 GPU. |
