Development of Polymer-Induced Metal-organic Framework Synthesis (PIMOFS)-derived PVA/ZIF-8 Mixed Maxtrix Membranes (MMMs) for dehydration of isopropanol
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초록
내용
PVA is a beneficial material for the membranes used in pervaporation (PV) dehydration of isopropanol. However, it still has such limitations in mechanical stability and separation performance. To that end, recent research efforts have been focused on developing new types of PVA membranes incorporating selective inorganic fillers, denoted as MMM. However, the conventional blending approach for MMMs has been led to significant drawbacks in developing uniform dispersion of fillers when high loading content fillers are incorporated with the PVA matrix. This study suggested a useful strategy for the fabrication of PVA MMMs using a new method of polymer-Induced metal-organic framework synthesis (PIMOFS). Based on PIMOFS, we designed the PVA/ZIF-8 (PVAZ) MMMs with good dispersion of fillers and high loading content. We anticipated that the PIMOFS-derived PVAZ MMMs could exhibit much-enhanced separation performance in isopropanol dehydration than that of the simple blend-induced PVA/ZIF-8 MMMs