{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T02:38:53Z","timestamp":1760236733008,"version":"build-2065373602"},"reference-count":73,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2021,12,20]],"date-time":"2021-12-20T00:00:00Z","timestamp":1639958400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia","doi-asserted-by":"publisher","award":["SFRH\/BD\/136963\/2018","2020.01555.CEECIND","UIDB\/50006\/2020","UIDP\/50006\/2020","UIDP\/04129\/2020","UIDB\/04129\/2020"],"award-info":[{"award-number":["SFRH\/BD\/136963\/2018","2020.01555.CEECIND","UIDB\/50006\/2020","UIDP\/50006\/2020","UIDP\/04129\/2020","UIDB\/04129\/2020"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Membranes"],"abstract":"<jats:p>Despite the fact that iongels are very attractive materials for gas separation membranes, they often show mechanical stability issues mainly due to the high ionic liquid (IL) content (\u226560 wt%) needed to achieve high gas separation performances. This work investigates a strategy to improve the mechanical properties of iongel membranes, which consists in the incorporation of montmorillonite (MMT) nanoclay, from 0.2 to 7.5 wt%, into a cross-linked poly(ethylene glycol) diacrylate (PEGDA) network containing 60 wt% of the IL 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([C2mim][TFSI]). The iongels were prepared by a simple one-pot method using ultraviolet (UV) initiated polymerization of poly(ethylene glycol) diacrylate (PEGDA) and characterized by several techniques to assess their physico-chemical properties. The thermal stability of the iongels was influenced by the addition of higher MMT contents (&gt;5 wt%). It was possible to improve both puncture strength and elongation at break with MMT contents up to 1 wt%. Furthermore, the highest ideal gas selectivities were achieved for iongels containing 0.5 wt% MMT, while the highest CO2 permeability was observed at 7.5 wt% MMT content, due to an increase in diffusivity. Remarkably, this strategy allowed for the preparation and gas permeation of self-standing iongel containing 80 wt% IL, which had not been possible up until now.<\/jats:p>","DOI":"10.3390\/membranes11120998","type":"journal-article","created":{"date-parts":[[2021,12,21]],"date-time":"2021-12-21T04:23:47Z","timestamp":1640060627000},"page":"998","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Poly(ethylene glycol) Diacrylate Iongel Membranes Reinforced with Nanoclays for CO2 Separation"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5342-477X","authenticated-orcid":false,"given":"Ana R.","family":"Nabais","sequence":"first","affiliation":[{"name":"LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, FCT NOVA, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0763-1791","authenticated-orcid":false,"given":"Rute O.","family":"Francisco","sequence":"additional","affiliation":[{"name":"LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, FCT NOVA, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4117-5582","authenticated-orcid":false,"given":"V\u00edtor D.","family":"Alves","sequence":"additional","affiliation":[{"name":"LEAF\u2014Linking Landscape, Environment, Agriculture and Food\u2014Research Center, Associated Laboratory TERRA, Instituto Superior de Agronomia, Universidade de Lisboa, Tapada da Ajuda, 1349-017 Lisabon, Portugal"}]},{"given":"Lu\u00edsa A.","family":"Neves","sequence":"additional","affiliation":[{"name":"LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, FCT NOVA, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9827-627X","authenticated-orcid":false,"given":"Liliana C.","family":"Tom\u00e9","sequence":"additional","affiliation":[{"name":"LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, FCT NOVA, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2021,12,20]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"9228","DOI":"10.1039\/C4CC02021A","article-title":"Ionic Liquids for Energy, Materials, and Medicine","volume":"50","author":"Smiglak","year":"2014","journal-title":"Chem. Commun."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"123","DOI":"10.1039\/B006677J","article-title":"Applications of Ionic Liquids in the Chemical Industry","volume":"37","author":"Plechkova","year":"2008","journal-title":"Chem. Soc. Rev."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"10350","DOI":"10.1021\/acsami.6b01973","article-title":"Single-Ion Block Copoly(Ionic Liquid)s as Electrolytes for All-Solid State Lithium Batteries","volume":"8","author":"Porcarelli","year":"2016","journal-title":"ACS Appl. Mater. Interfaces"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"4857","DOI":"10.1016\/j.ijhydene.2019.09.118","article-title":"Enhanced Proton Conduction in Zirconium Phosphate\/Ionic Liquids Materials for High-Temperature Fuel Cells","volume":"46","author":"Mohammed","year":"2021","journal-title":"Int. J. Hydrogen Energy"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"603","DOI":"10.1016\/j.jcis.2019.07.047","article-title":"The Determination of 2-Phenylphenol in the Presence of 4-Chlorophenol Using Nano-Fe3O4\/Ionic Liquid Paste Electrode as an Electrochemical Sensor","volume":"554","author":"Fakude","year":"2019","journal-title":"J. Colloid Interface Sci."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"2100374","DOI":"10.1002\/adhm.202100374","article-title":"Conducting Polymer-Ionic Liquid Electrode Arrays for High-Density Surface Electromyography","volume":"10","author":"Karam","year":"2021","journal-title":"Adv. Healthc. Mater."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"2003995","DOI":"10.1002\/advs.202003995","article-title":"Reducing Passive Drug Diffusion from Electrophoretic Drug Delivery Devices through Co-Ion Engineering","volume":"8","author":"Chen","year":"2021","journal-title":"Adv. Sci."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"2785","DOI":"10.1039\/C5CS00510H","article-title":"Ionic Liquid-Based Materials: A Platform to Design Engineered CO2 Separation Membranes","volume":"45","author":"Marrucho","year":"2016","journal-title":"Chem. Soc. Rev."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/j.memsci.2015.08.060","article-title":"Combination of Ionic Liquids with Membrane Technology: A New Approach for CO2 Separation","volume":"497","author":"Dai","year":"2016","journal-title":"J. Memb. Sci."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"230","DOI":"10.1016\/j.seppur.2019.03.103","article-title":"Ionic Liquids Combined with Membrane Separation Processes: A Review","volume":"222","author":"Yan","year":"2019","journal-title":"Sep. Purif. Technol."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"3239","DOI":"10.1039\/D1MH01263K","article-title":"Emerging Iongel Materials Towards Applications in Energy and Bioelectronics","volume":"8","author":"Porcarelli","year":"2021","journal-title":"Mater. Horiz."},{"key":"ref_12","doi-asserted-by":"crossref","unstructured":"Martins, A.P.S., De A\u00f1astro, A.F., Olmedo-Mart\u00ednez, J.L., Nabais, A.R., Neves, L.A., Mecerreyes, D., and Tom\u00e9, L.C. (2020). Influence of Anion Structure on Thermal, Mechanical and CO2 Solubility Properties of Uv-Cross-Linked Poly(Ethylene Glycol) Diacrylate Iongels. Membranes, 10.","DOI":"10.3390\/membranes10030046"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"20","DOI":"10.1016\/j.memsci.2012.07.011","article-title":"ABA-Triblock Copolymer Ion Gels for CO 2 Separation Applications","volume":"423\u2013424","author":"Gu","year":"2012","journal-title":"J. Memb. Sci."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"23947","DOI":"10.1039\/C5CP04198H","article-title":"Ion Segregation in an Ionic Liquid Confined within Chitosan Based Chemical Ionogels","volume":"17","author":"Humbert","year":"2015","journal-title":"Phys. Chem. Chem. Phys."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"1169","DOI":"10.1039\/C5NJ02432C","article-title":"Facile Preparation of Supramolecular Ionogels Exhibiting High Temperature Durability as Solid Electrolytes","volume":"40","author":"Zhou","year":"2016","journal-title":"New J. Chem."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"219","DOI":"10.1016\/j.electacta.2012.11.113","article-title":"Ionogels Based on Ionic Liquids as Potential Highly Conductive Solid State Electrolytes","volume":"91","author":"Noor","year":"2013","journal-title":"Electrochim. Acta"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"9013","DOI":"10.1021\/jp8029117","article-title":"Nanocomposite Ion Gels Based on Silica Nanoparticles and an Ionic Liquid: Ionic Transport, Viscoelastic Properties, and Microstructure","volume":"112","author":"Ueno","year":"2008","journal-title":"J. Phys. Chem. B"},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"11796","DOI":"10.1016\/j.ijhydene.2012.05.111","article-title":"PVDF\/Ionic Liquid Polymer Blends with Superior Separation Performance for Removing CO2 from Hydrogen and Flue Gas","volume":"37","author":"Chen","year":"2012","journal-title":"Int. J. Hydrog. Energy"},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"251","DOI":"10.1016\/j.electacta.2016.03.197","article-title":"Preparation of Iodine-Free Ionic Liquid Gel Electrolyte Using Polyethylene Oxide (PEO)-Polyethylene Glycol (PEG) and Its Application in Ti-Foil-Based Dye-Sensitized Solar Cells","volume":"201","author":"Ri","year":"2016","journal-title":"Electrochim. Acta"},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"724","DOI":"10.1021\/acs.accounts.5b00547","article-title":"Poly(Ionic Liquid)\/Ionic Liquid Ion-Gels with High \u201cFree\u201d Ionic Liquid Content: Platform Membrane Materials for CO2\/Light Gas Separations","volume":"49","author":"Cowan","year":"2016","journal-title":"Acc. Chem. Res."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"260","DOI":"10.1016\/j.memsci.2012.10.044","article-title":"Pyrrolidinium-Based Polymeric Ionic Liquid Materials: New Perspectives for CO2 Separation Membranes","volume":"428","author":"Mecerreyes","year":"2013","journal-title":"J. Membr. Sci."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"149","DOI":"10.1016\/j.memsci.2016.02.034","article-title":"Determination and Optimization of Factors Affecting CO2\/CH4 Separation Performance in Poly(Ionic Liquid)-Ionic Liquid-Zeolite Mixed-Matrix Membranes","volume":"509","author":"Singh","year":"2016","journal-title":"J. Memb. Sci."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"168","DOI":"10.1016\/j.seppur.2019.04.018","article-title":"Poly(Ionic Liquid)-Based Engineered Mixed Matrix Membranes for CO2\/H2 Separation","volume":"222","author":"Nabais","year":"2019","journal-title":"Sep. Purif. Technol."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"1294","DOI":"10.1021\/cm403885r","article-title":"Vinyl-Functionalized Poly(Imidazolium)s: A Curable Polymer Platform for Cross-Linked Ionic Liquid Gel Synthesis","volume":"26","author":"Carlisle","year":"2014","journal-title":"Chem. Mater."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"11658","DOI":"10.1021\/acs.iecr.8b02739","article-title":"Cross-Linked Poly(Ethylene Oxide) Ion Gels Containing Functionalized Imidazolium Ionic Liquids as Carbon Dioxide Separation Membranes","volume":"57","author":"Kusuma","year":"2018","journal-title":"Ind. Eng. Chem. Res."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"1863","DOI":"10.1039\/C6EE00811A","article-title":"Advances in High Permeability Polymer-Based Membrane Materials for CO2 Separations","volume":"9","author":"Wang","year":"2016","journal-title":"Energy Environ. Sci."},{"key":"ref_27","doi-asserted-by":"crossref","unstructured":"Monteiro, B., Nabais, A.R., Casimiro, M.H., Martins, A.P.S., Francisco, R.O., Neves, L.A., and Pereira, C.C.L. (2018). Impact on CO2\/N2 and CO2\/CH4 Separation Performance Using Cu-BTC with Supported Ionic Liquids-Based Mixed Matrix Membranes. Membranes, 8.","DOI":"10.3390\/membranes8040093"},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"2843","DOI":"10.1002\/aic.15260","article-title":"Size Effects of Graphene Oxide on Mixed Matrix Membranes for CO2 Separation","volume":"62","author":"Shen","year":"2016","journal-title":"AIChE J."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"230","DOI":"10.1016\/j.clay.2018.09.025","article-title":"Preparation and Characterization of Ultra-Thin Poly Ether Block Amide\/Nanoclay Nanocomposite Membrane for Gas Separation","volume":"166","author":"Amini","year":"2018","journal-title":"Appl. Clay Sci."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"9321","DOI":"10.1002\/anie.201603211","article-title":"A Highly Permeable Aligned Montmorillonite Mixed-Matrix Membrane for CO2Separation","volume":"55","author":"Qiao","year":"2016","journal-title":"Angew. Chem. Int. Ed."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"8855577","DOI":"10.1155\/2020\/8855577","article-title":"Development and Performance Evaluation of Cellulose Acetate-Bentonite Mixed Matrix Membranes for CO2 Separation","volume":"2020","author":"Jamil","year":"2020","journal-title":"Adv. Polym. Technol."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"1393","DOI":"10.1002\/ceat.201500395","article-title":"Current Status and Future Prospect of Polymer-Layered Silicate Mixed-Matrix Membranes for CO2\/CH4 Separation","volume":"39","author":"Jamil","year":"2016","journal-title":"Chem. Eng. Technol."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"34885","DOI":"10.1039\/D0RA06443B","article-title":"Synthesis, Structure and Thermal Properties of Montmorillonite\/Ionic Liquid Ionogels","volume":"10","author":"Noskov","year":"2020","journal-title":"RSC Adv."},{"key":"ref_34","doi-asserted-by":"crossref","unstructured":"Sinha Ray, S. (2013). Chapter 1: An Overview of Pure and Organically Modified Clays. Clay-Containing Polymer Nanocomposites: From Fundamentals to Real Applications, Elsevier.","DOI":"10.1016\/B978-0-444-59437-2.00001-6"},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"690","DOI":"10.4028\/www.scientific.net\/AMM.625.690","article-title":"Polymer-Nanoclay Mixed Matrix Membranes for CO2\/CH4 Separation: A Review","volume":"625","author":"Jamil","year":"2014","journal-title":"Appl. Mech. Mater."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"34","DOI":"10.1016\/j.seppur.2012.01.049","article-title":"Integrated CO 2 Capture and Enzymatic Bioconversion in Supported Ionic Liquid Membranes","volume":"97","author":"Neves","year":"2012","journal-title":"Sep. Purif. Technol."},{"key":"ref_37","doi-asserted-by":"crossref","unstructured":"Mulder, M. (1996). Basic Principles of Membrane Technology, Kluwer Academic Publishers. [2nd ed.].","DOI":"10.1007\/978-94-009-1766-8"},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"622","DOI":"10.1016\/j.jcis.2009.11.048","article-title":"Nanoporous Polymer\u2014Clay Hybrid Membranes for Gas Separation","volume":"343","author":"Defontaine","year":"2010","journal-title":"J. Colloid Interface Sci."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"105","DOI":"10.1016\/j.jct.2017.04.016","article-title":"Thermal Stability of Some Imidazolium [NTf2] Ionic Liquids: Isothermal and Dynamic Kinetic Study through Thermogravimetric Procedures","volume":"112","author":"Teijeira","year":"2017","journal-title":"J. Chem. Thermodyn."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"316","DOI":"10.1016\/j.cej.2011.03.063","article-title":"Effects of Montmorillonite Nano-Clay Fillers on PEI Mixed Matrix Membrane for CO2 Removal","volume":"170","author":"Hashemifard","year":"2011","journal-title":"Chem. Eng. J."},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"135","DOI":"10.1016\/j.memsci.2011.08.004","article-title":"Preparation, Characterization and Performance of Polyethersulfone\/Organically Modified Montmorillonite Nanocomposite Membranes in Removal of Pesticides","volume":"382","author":"Ghaemi","year":"2011","journal-title":"J. Memb. Sci."},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"1251","DOI":"10.1016\/j.carbpol.2012.01.088","article-title":"Preparation of Regenerated Cellulose\/Montmorillonite Nanocomposite Films via Ionic Liquids","volume":"88","author":"Mahmoudian","year":"2012","journal-title":"Carbohydr. Polym."},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"45302","DOI":"10.1002\/app.45302","article-title":"Study the Effects of Cloisite15A Nanoclay Incorporation on the Morphology and Gas Permeation Properties of Pebax2533 Polymer","volume":"134","author":"Behroozi","year":"2017","journal-title":"J. Appl. Polym. Sci."},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"256","DOI":"10.1016\/j.seppur.2018.05.054","article-title":"Polyetherimide-Montmorillonite Mixed Matrix Hollow Fibre Membranes: Effect of Inorganic\/Organic Montmorillonite on CO2\/CH4 Separation","volume":"206","author":"Jamil","year":"2018","journal-title":"Sep. Purif. Technol."},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"390","DOI":"10.1016\/j.memsci.2008.04.030","article-title":"The Upper Bound Revisited","volume":"320","author":"Robeson","year":"2008","journal-title":"J. Membr. Sci."},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"58","DOI":"10.1016\/j.memsci.2010.04.047","article-title":"Influence of Temperature on the Upper Bound: Theoretical Considerations and Comparison with Experimental Results","volume":"360","author":"Rowe","year":"2010","journal-title":"J. Membr. Sci."},{"key":"ref_47","doi-asserted-by":"crossref","first-page":"54","DOI":"10.1016\/j.memsci.2017.05.011","article-title":"Improving CO2 Separation Performance of Thin Film Composite Hollow Fiber with Pebax\u00ae1657\/Ionic Liquid Gel Membranes","volume":"537","author":"Fam","year":"2017","journal-title":"J. Memb. Sci."},{"key":"ref_48","doi-asserted-by":"crossref","first-page":"10403","DOI":"10.1039\/c3ta12174g","article-title":"Polymeric Ionic Liquids with Mixtures of Counter-Anions: A New Straightforward Strategy for Designing Pyrrolidinium-Based CO2 Separation Membranes","volume":"1","author":"Aboudzadeh","year":"2013","journal-title":"J. Mater. Chem. A"},{"key":"ref_49","doi-asserted-by":"crossref","unstructured":"Gouveia, A.S.L., Ventaja, L., Tom\u00e9, L.C., and Marrucho, I.M. (2018). Towards Biohydrogen Separation Using Poly(Ionic Liquid)\/Ionic Liquid Composite Membranes. Membranes, 8.","DOI":"10.20944\/preprints201810.0467.v1"},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"64","DOI":"10.1016\/j.memsci.2017.01.016","article-title":"CO2\/CH4 Separation Performance of Ionic-Liquid-Based Epoxy-Amine Ion Gel Membranes under Mixed Feed Conditions Relevant to Biogas Processing","volume":"528","author":"Friess","year":"2017","journal-title":"J. Memb. Sci."},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"341","DOI":"10.1016\/j.memsci.2018.02.019","article-title":"Mixing Poly(Ionic Liquid)s and Ionic Liquids with Different Cyano Anions: Membrane Forming Ability and CO2\/N2 Separation Properties","volume":"552","author":"Teodoro","year":"2018","journal-title":"J. Memb. Sci."},{"key":"ref_52","doi-asserted-by":"crossref","first-page":"7112","DOI":"10.1021\/acs.macromol.8b01135","article-title":"Sulfonated Polyimide\/Ionic Liquid Composite Membranes for CO2 Separation: Transport Properties in Relation to Their Nanostructures","volume":"51","author":"Ito","year":"2018","journal-title":"Macromolecules"},{"key":"ref_53","doi-asserted-by":"crossref","first-page":"671","DOI":"10.1038\/pj.2017.31","article-title":"Sulfonated Polyimide\/Ionic Liquid Composite Membranes for Carbon Dioxide Separation","volume":"49","author":"Ito","year":"2017","journal-title":"Polym. J."},{"key":"ref_54","doi-asserted-by":"crossref","unstructured":"O\u2019Harra, K.E., Kammakakam, I., Devriese, E.M., Noll, D.M., Bara, J.E., and Jackson, E.M. (2019). Synthesis and Performance of 6FDA-Based Polyimide-Ionenes and Composites with Ionic Liquids as Gas Separation Membranes. Membranes, 9.","DOI":"10.3390\/membranes9070079"},{"key":"ref_55","first-page":"7227","article-title":"Polymer-Ionic Liquid Gels for Enhanced Gas Transport","volume":"1","author":"Park","year":"2009","journal-title":"Chem. Commun."},{"key":"ref_56","doi-asserted-by":"crossref","first-page":"20064","DOI":"10.1021\/ie5040682","article-title":"High-Permeance Room-Temperature Ionic-Liquid-Based Membranes for CO2\/N2 Separation","volume":"53","author":"Zhou","year":"2014","journal-title":"Ind. Eng. Chem. Res."},{"key":"ref_57","doi-asserted-by":"crossref","first-page":"303","DOI":"10.1016\/j.memsci.2015.05.034","article-title":"Fixed-Site-Carrier Facilitated Transport of Carbon Dioxide through Ionic-Liquid-Based Epoxy-Amine Ion Gel Membranes","volume":"492","author":"McDanel","year":"2015","journal-title":"J. Memb. Sci."},{"key":"ref_58","doi-asserted-by":"crossref","first-page":"155","DOI":"10.1016\/j.memsci.2015.02.020","article-title":"Novel Pyrrolidinium-Based Polymeric Ionic Liquids with Cyano Counter-Anions: High Performance Membrane Materials for Post-Combustion CO2 separation","volume":"483","author":"Isik","year":"2015","journal-title":"J. Membr. Sci."},{"key":"ref_59","doi-asserted-by":"crossref","first-page":"117405","DOI":"10.1016\/j.memsci.2019.117405","article-title":"Tuning the Microstructure of Crosslinked Poly(Ionic Liquid) Membranes and Gels via a Multicomponent Reaction for Improved CO2 Capture Performance","volume":"593","author":"Yin","year":"2020","journal-title":"J. Memb. Sci."},{"key":"ref_60","doi-asserted-by":"crossref","first-page":"5954","DOI":"10.1021\/acssuschemeng.0c00327","article-title":"Tailored CO2-Philic Anionic Poly(Ionic Liquid) Composite Membranes: Synthesis, Characterization, and Gas Transport Properties","volume":"8","author":"Kammakakam","year":"2020","journal-title":"ACS Sustain. Chem. Eng."},{"key":"ref_61","doi-asserted-by":"crossref","first-page":"5261","DOI":"10.1021\/acs.iecr.9b00241","article-title":"Cross-Linked PEG Membranes of Interpenetrating Networks with Ionic Liquids as Additives for Enhanced CO2 Separation","volume":"58","author":"Deng","year":"2019","journal-title":"Ind. Eng. Chem. Res."},{"key":"ref_62","doi-asserted-by":"crossref","first-page":"6422","DOI":"10.1039\/C6RA27221E","article-title":"Pebax-Based Composite Membranes with High Gas Transport Properties Enhanced by Ionic Liquids for CO2 Separation","volume":"7","author":"Li","year":"2017","journal-title":"RSC Adv."},{"key":"ref_63","doi-asserted-by":"crossref","first-page":"141","DOI":"10.1016\/j.memsci.2011.01.012","article-title":"Novel Mixed Matrix Membranes Based on Polymerizable Room-Temperature Ionic Liquids and SAPO-34 Particles to Improve CO 2 Separation","volume":"370","author":"Hudiono","year":"2011","journal-title":"J. Membr. Sci."},{"key":"ref_64","doi-asserted-by":"crossref","first-page":"330","DOI":"10.1016\/j.memsci.2013.12.031","article-title":"Characterization and Gas Permeation Properties of Polyimide\/ZSM-5 Zeolite Composite Membranes Containing Ionic Liquid","volume":"454","author":"Shindo","year":"2014","journal-title":"J. Memb. Sci."},{"key":"ref_65","doi-asserted-by":"crossref","first-page":"252","DOI":"10.1016\/j.memsci.2017.09.036","article-title":"Inorganic\/Organic Composite Ion Gel Membrane with High Mechanical Strength and High CO2 Separation Performance","volume":"544","author":"Ranjbaran","year":"2017","journal-title":"J. Memb. Sci."},{"key":"ref_66","doi-asserted-by":"crossref","first-page":"1704118","DOI":"10.1002\/adma.201704118","article-title":"Inorganic\/Organic Double-Network Gels Containing Ionic Liquids","volume":"29","author":"Kamio","year":"2017","journal-title":"Adv. Mater."},{"key":"ref_67","doi-asserted-by":"crossref","first-page":"137","DOI":"10.1038\/s41428-020-0393-y","article-title":"Inorganic\/Organic Double-Network Ion Gel Membrane with a High Ionic Liquid Content for CO2 Separation","volume":"53","author":"Kamio","year":"2021","journal-title":"Polym. J."},{"key":"ref_68","doi-asserted-by":"crossref","first-page":"12698","DOI":"10.1021\/acs.iecr.1c02228","article-title":"Inorganic\/Organic Micro-Double-Network Ion Gel-Based Composite Membrane with Enhanced Mechanical Strength and CO2 Permeance","volume":"60","author":"Zhang","year":"2021","journal-title":"Ind. Eng. Chem. Res."},{"key":"ref_69","doi-asserted-by":"crossref","first-page":"12763","DOI":"10.1021\/acs.iecr.7b03279","article-title":"Ion Gel Membrane with Tunable Inorganic\/Organic Composite Network for CO2 Separation","volume":"56","author":"Ranjbaran","year":"2017","journal-title":"Ind. Eng. Chem. Res."},{"key":"ref_70","doi-asserted-by":"crossref","first-page":"10094","DOI":"10.1021\/acsami.6b16539","article-title":"Interfacial Design of Ternary Mixed Matrix Membranes Containing Pebax 1657\/Silver-Nanopowder\/[BMIM][BF4] for Improved CO2 Separation Performance","volume":"9","author":"Omidkhah","year":"2017","journal-title":"ACS Appl. Mater. Interfaces"},{"key":"ref_71","doi-asserted-by":"crossref","first-page":"4704","DOI":"10.1021\/acs.iecr.8b06464","article-title":"(Cross-Linked Poly(Ionic Liquid)-Ionic Liquid-Zeolite) Mixed-Matrix Membranes for CO2\/CH4 Gas Separations Based on Curable Ionic Liquid Prepolymers","volume":"58","author":"Dunn","year":"2019","journal-title":"Ind. Eng. Chem. Res."},{"key":"ref_72","doi-asserted-by":"crossref","first-page":"275","DOI":"10.1016\/j.jngse.2017.07.024","article-title":"Improved CO2\/CH4 Separation Using a Nanocomposite Ionic Liquid Gel Membrane","volume":"46","author":"Mahdavi","year":"2017","journal-title":"J. Nat. Gas Sci. Eng."},{"key":"ref_73","doi-asserted-by":"crossref","first-page":"308","DOI":"10.1021\/acs.iecr.9b04206","article-title":"Impact of MOF-5 on Pyrrolidinium-Based Poly(Ionic Liquid)\/Ionic Liquid Membranes for Biogas Upgrading","volume":"59","author":"Sampaio","year":"2020","journal-title":"Ind. Eng. Chem. 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