Chemically Stable Covalent Organic Framework (COF)‐Polybenzimidazole Hybrid Membranes: Enhanced Gas Separation through Pore Modulation |
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| Authors: | Bishnu P. Biswal Harshal D. Chaudhari Prof. Dr. Rahul Banerjee Prof. Dr. Ulhas K. Kharul |
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| Affiliation: | 1. Academy of Scientific and Innovative Research (AcSIR), Physical/Materials Chemistry Division, CSIR-National Chemical Laboratory, Pune-, India;2. Academy of Scientific and Innovative Research (AcSIR), Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Pune-, India |
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| Abstract: | Highly flexible, TpPa‐1@PBI‐BuI and TpBD@PBI‐BuI hybrid membranes based on chemically stable covalent organic frameworks (COFs) could be obtained with the polymer. The loading obtained was substantially higher (50 %) than generally observed with MOFs. These hybrid membranes show an exciting enhancement in permeability (about sevenfold) with appreciable separation factors for CO2/N2 and CO2/CH4. Further, we found that with COF pore modulation, the gas permeability can be systematically enhanced. |
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| Keywords: | covalent organic frameworks gas separation membranes microporous materials pore modulation |
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