caa a22 4500 463225910 CHVBK 20180405153227.0 cr unu---uuuuu 170326e20071101xx s 000 0 eng 10.1007/s10853-007-1813-5 doi (NATIONALLICENCE)springer-10.1007/s10853-007-1813-5 Gas permeation properties of polyamide membrane prepared by interfacial polymerization [Elektronische Daten] [S. Sridhar, B. Smitha, Satyajai Mayor, B. Prathab, T. Aminabhavi] Interfacial polymerization technique has been widely employed to prepare reverse osmosis (RO) and nanofiltration (NF) membranes. The present study explores the possibility of preparing a polyamide membrane by interfacial polymerization and its utilization for the separation of CO2 and H2S from CH4. A novel ultraporous substrate of polysulfone (PSF) was prepared by phase inversion technique from a solution containing 18% PSF and 4% propionic acid in dimethyl formamide (DMF) solvent. Thin film composite (TFC) polyamide membrane was synthesized on PSF substrate from the reaction between meta-phenylene diamine in an aqueous media and isophthaloyl chloride in hexane. The membrane prepared was characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), differential scanning calorimetry (DSC) and scanning electron microscopy (SEM) to study intermolecular interactions, crystallinity, thermal stability and surface morphology, respectively. Gas permeabilities of pure CO2, H2S, CH4, O2, and N2 gases were measured using the indigenously built permeation cell incorporated into a high-pressure gas separation manifold. At the feed pressure of 1MPa, the membrane exhibited permeances of 15.2GPU for CO2 and 51.6GPU for H2S with selectivities of 14.4 and 49.1 for CO2/CH4 and H2S/CH4 systems, respectively. The observed N2 permeance of 0.95GPU was close to that of CH4. The corresponding O2 permeance was 5.13GPU with a reasonably high O2/N2 selectivity of 5.4. The effect of feed pressure on polyamide membrane performance was examined. Further, molecular dynamics (MD) simulations were employed to compute the cohesive energy density (CED), solubility parameter (δ) and sorption of CO2, H2S, CH4, O2, and N2 gases in polyamide membrane to corroborate theoretical study with experimentally determined gas transport properties. Springer Science+Business Media, LLC, 2007 Sridhar S. Membrane Separations Division, Center of Excellence in Polymer Science, Karnatak University, 580 003, Dharwad, India aut Smitha B. Membrane Separations Group, Indian Institute of Chemical Technology, 500 007, Hyderabad, India aut Mayor Satyajai Permionics Membranes Pvt. Ltd., 390 016, Vadodara, India aut Prathab B. Membrane Separations Division, Center of Excellence in Polymer Science, Karnatak University, 580 003, Dharwad, India aut Aminabhavi T. Membrane Separations Division, Center of Excellence in Polymer Science, Karnatak University, 580 003, Dharwad, India aut Journal of Materials Science Springer US; http://www.springer-ny.com 42/22(2007-11-01), 9392-9401 0022-2461 42:22<9392 2007 42 10853 https://doi.org/10.1007/s10853-007-1813-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-007-1813-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sridhar S. Membrane Separations Division, Center of Excellence in Polymer Science, Karnatak University, 580 003, Dharwad, India aut NATIONALLICENCE 700 1- Smitha B. Membrane Separations Group, Indian Institute of Chemical Technology, 500 007, Hyderabad, India aut NATIONALLICENCE 700 1- Mayor Satyajai Permionics Membranes Pvt. Ltd., 390 016, Vadodara, India aut NATIONALLICENCE 700 1- Prathab B. Membrane Separations Division, Center of Excellence in Polymer Science, Karnatak University, 580 003, Dharwad, India aut NATIONALLICENCE 700 1- Aminabhavi T. Membrane Separations Division, Center of Excellence in Polymer Science, Karnatak University, 580 003, Dharwad, India aut NATIONALLICENCE 773 0- Journal of Materials Science Springer US; http://www.springer-ny.com 42/22(2007-11-01), 9392-9401 0022-2461 42:22<9392 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer