| 초록 |
Mixed-matrix membranes (MMMs) with an optimum MOF-polymer interface compatibility is the key challenge to fabricate for high-performance gas-separation. Here, we report a surface modification strategy of the UiO-66-NH2 MOF, using a covalently bonded PIM-PI-oligomer to engineer the interface compatibility with the polymer of identical chemical structure (PIM-PI-1) in MMMs. A series of MMMs are prepared with homogeneously distributed PIM-PI-functionalised MOF (PPM) at different loadings. A significant improvement of both permeability and selectivity are achieved by these MMMs. Synthesis, characterization, and properties of PPM-x@MMM including gas separation performance at ambient and drastic conditions, and their theoretical evaluation will be discussed in detail. |
