title: Chemically Stable Covalent Organic Framework (COF)-Polybenzimidazole Hybrid Membranes: Enhanced Gas Separation through Pore Modulation.
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.
authors: Academy of Scientific and Innovative Research (AcSIR), Physical/Materials Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune-, 411008, India.
authors: Bishnu P
authors: BP
authors: Biswal
authors: Academy of Scientific and Innovative Research (AcSIR), Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune-, 411008, India.
authors: Harshal D
authors: HD
authors: Chaudhari
authors: Academy of Scientific and Innovative Research (AcSIR), Physical/Materials Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune-, 411008, India. r.banerjee@ncl.res.in.
authors: Rahul
authors: R
authors: Banerjee
authors: Academy of Scientific and Innovative Research (AcSIR), Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune-, 411008, India. uk.kharul@ncl.res.in.
authors: Ulhas K
authors: UK
authors: Kharul
keywords: covalent organic frameworks; gas separation; membranes; microporous materials; pore modulation