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Faykov I, Polotskaya G, Kuryndin I, Zoolshoev Z, Saprykina N, Tian N, Sorokina A, Pulyalina A. The Effect of Complex Modifier Consisting of Star Macromolecules and Ionic Liquid on Structure and Gas Separation of Polyamide Membrane. MEMBRANES 2023; 13:membranes13050516. [PMID: 37233577 DOI: 10.3390/membranes13050516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/04/2023] [Accepted: 05/13/2023] [Indexed: 05/27/2023]
Abstract
A novel hybrid membrane was developed on the basis of poly(m-phenylene isophthalamide) (PA) by introducing an original complex modifier into the polymer; this modifier consisted of equal amounts of heteroarm star macromolecules with a fullerene C60 core (HSM) and the ionic liquid [BMIM][Tf2N] (IL). The effect of the (HSM:IL) complex modifier on characteristics of the PA membrane was evaluated using physical, mechanical, thermal, and gas separation techniques. The structure of the PA/(HSM:IL) membrane was studied by scanning electron microscopy (SEM). Gas transport properties were determined by measuring He, O2, N2, and CO2 permeation through the membranes based on PA and its composites containing a 5 wt% modifier. The permeability coefficients of all gases through the hybrid membranes were lower than the corresponding parameters for the unmodified membrane, whereas the ideal selectivity in the separation of He/N2, CO2/N2, and O2/N2 gas pairs was higher for the hybrid membrane. The position of the PA/(HSM:IL) membrane on the Robeson's diagram for the O2/N2 gas pair is discussed.
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Affiliation(s)
- Ilya Faykov
- Institute of Chemistry, Saint Petersburg State University, 198504 Saint Petersburg, Russia
| | - Galina Polotskaya
- Institute of Chemistry, Saint Petersburg State University, 198504 Saint Petersburg, Russia
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 Saint Petersburg, Russia
| | - Ivan Kuryndin
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 Saint Petersburg, Russia
| | - Zoolsho Zoolshoev
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 Saint Petersburg, Russia
| | - Natalia Saprykina
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 Saint Petersburg, Russia
| | - Nadezhda Tian
- Institute of Chemistry, Saint Petersburg State University, 198504 Saint Petersburg, Russia
| | - Angelina Sorokina
- Institute of Chemistry, Saint Petersburg State University, 198504 Saint Petersburg, Russia
| | - Alexandra Pulyalina
- Institute of Chemistry, Saint Petersburg State University, 198504 Saint Petersburg, Russia
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Rostovtseva VA, Pulyalina AY, Dubovenko RR, Saprykina NN, Vinogradova LV, Polotskaya GA. Influence of Ionic Liquid on Transport Properties of Hybrid Membranes in the Lactic Acid Dehydration Process. MEMBRANES AND MEMBRANE TECHNOLOGIES 2021. [DOI: 10.1134/s2517751621050103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Rostovtseva V, Pulyalina A, Dubovenko R, Faykov I, Subbotina K, Saprykina N, Novikov A, Vinogradova L, Polotskaya G. Enhancing Pervaporation Membrane Selectivity by Incorporating Star Macromolecules Modified with Ionic Liquid for Intensification of Lactic Acid Dehydration. Polymers (Basel) 2021; 13:polym13111811. [PMID: 34072762 PMCID: PMC8198700 DOI: 10.3390/polym13111811] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 05/27/2021] [Accepted: 05/27/2021] [Indexed: 11/28/2022] Open
Abstract
Modification of polymer matrix by hybrid fillers is a promising way to produce membranes with excellent separation efficiency due to variations in membrane structure. High-performance membranes for the pervaporation dehydration were produced by modifying poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) to facilitate lactic acid purification. Ionic liquid (IL), heteroarm star macromolecules (HSM), and their combination (IL:HSM) were employed as additives to the polymer matrix. The composition and structure of hybrid membranes were characterized by X-ray diffraction and FTIR spectroscopy. Scanning electron microscopy was used to investigate the membranes surface and cross-section morphology. It was established that the inclusion of modifiers in the polymer matrix leads to the change of membrane structure. The influence of IL:HSM was also studied via sorption experiments and pervaporation of water‒lactic acid mixtures. Lactic acid is an essential compound in many industries, including food, pharmaceutical, chemical, while the recovering and purifying account for approximately 50% of its production cost. It was found that the membranes selectively remove water from the feed. Quantum mechanical calculations determine the favorable interactions between various membrane components and the liquid mixture. With IL:HSM addition, the separation factor and performance in lactic acid dehydration were improved compared with pure polymer membrane. The best performance was found for (HSM: IL)-PPO/UPM composite membrane, where the permeate flux and the separation factor of about 0.06 kg m−2 h−1 and 749, respectively, were obtained. The research results demonstrated that ionic liquids in combination with star macromolecules for membrane modification could be a promising approach for membrane design.
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Affiliation(s)
- Valeriia Rostovtseva
- Institute of Chemistry, Saint Petersburg State University, 198504 Saint Petersburg, Russia; (V.R.); (R.D.); (I.F.); (K.S.); (A.N.); (G.P.)
| | - Alexandra Pulyalina
- Institute of Chemistry, Saint Petersburg State University, 198504 Saint Petersburg, Russia; (V.R.); (R.D.); (I.F.); (K.S.); (A.N.); (G.P.)
- Correspondence:
| | - Roman Dubovenko
- Institute of Chemistry, Saint Petersburg State University, 198504 Saint Petersburg, Russia; (V.R.); (R.D.); (I.F.); (K.S.); (A.N.); (G.P.)
| | - Ilya Faykov
- Institute of Chemistry, Saint Petersburg State University, 198504 Saint Petersburg, Russia; (V.R.); (R.D.); (I.F.); (K.S.); (A.N.); (G.P.)
| | - Kseniya Subbotina
- Institute of Chemistry, Saint Petersburg State University, 198504 Saint Petersburg, Russia; (V.R.); (R.D.); (I.F.); (K.S.); (A.N.); (G.P.)
| | - Natalia Saprykina
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 Saint Petersburg, Russia; (N.S.); (L.V.)
| | - Alexander Novikov
- Institute of Chemistry, Saint Petersburg State University, 198504 Saint Petersburg, Russia; (V.R.); (R.D.); (I.F.); (K.S.); (A.N.); (G.P.)
| | - Ludmila Vinogradova
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 Saint Petersburg, Russia; (N.S.); (L.V.)
| | - Galina Polotskaya
- Institute of Chemistry, Saint Petersburg State University, 198504 Saint Petersburg, Russia; (V.R.); (R.D.); (I.F.); (K.S.); (A.N.); (G.P.)
- Institute of Macromolecular Compounds, Russian Academy of Sciences, 199004 Saint Petersburg, Russia; (N.S.); (L.V.)
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Faykov II, Rostovtseva VA, Tyan NS, Pulyalina AY. A Deep Eutectic Solvent as a Modifier of Polyphenylene Oxide Membranes for Acetic Acid Dehydration. MEMBRANES AND MEMBRANE TECHNOLOGIES 2021. [DOI: 10.1134/s2517751621020037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Rostovtseva V, Pulyalina A, Rudakova D, Vinogradova L, Polotskaya G. Strongly Selective Polymer Membranes Modified with Heteroarm Stars for the Ethylene Glycol Dehydration by Pervaporation. MEMBRANES 2020; 10:membranes10050086. [PMID: 32365736 PMCID: PMC7281401 DOI: 10.3390/membranes10050086] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 04/16/2020] [Accepted: 04/27/2020] [Indexed: 11/18/2022]
Abstract
Hybrid membranes based on poly (2,6-dimethyl-1,4-phenylene oxide) modified with heteroarm stars (HAS) were developed to separate ethylene glycol/water mixtures by pervaporation. The HAS consist of a small branching center fullerene C 60 and twelve arms of different nature, six arms of nonpolar polystyrene and six arms of polar poly-tert-butyl methacrylate. The changes of structure and physical properties with HAS inclusion were systematically studied using SEM, X-ray diffraction analysis, TGA, and contact angle measurements. Mass transfer of ethylene glycol and water through membranes was studied by sorption and pervaporation tests. It was found that the growth of HAS content up to 5 wt% in the membrane leads to an increase in the total flux and a strong increase in the separation factor. To evaluate intrinsic properties of the penetrant–membrane system, permeability and selectivity were calculated. Overall, utilizing star-shaped macromolecules as a filler can be a promising way to improve the separation performance of diffusion membranes.
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Affiliation(s)
- Valeriia Rostovtseva
- Institute of Chemistry, Saint Petersburg State University, Universitetskiy pr. 26, Saint Petersburg 198504, Russia; (V.R.); (D.R.); (G.P.)
| | - Alexandra Pulyalina
- Institute of Chemistry, Saint Petersburg State University, Universitetskiy pr. 26, Saint Petersburg 198504, Russia; (V.R.); (D.R.); (G.P.)
- Correspondence: ; Tel.: +7-8-124-284-805
| | - Daria Rudakova
- Institute of Chemistry, Saint Petersburg State University, Universitetskiy pr. 26, Saint Petersburg 198504, Russia; (V.R.); (D.R.); (G.P.)
| | - Ludmila Vinogradova
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, Saint Petersburg 199004, Russia;
| | - Galina Polotskaya
- Institute of Chemistry, Saint Petersburg State University, Universitetskiy pr. 26, Saint Petersburg 198504, Russia; (V.R.); (D.R.); (G.P.)
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, Saint Petersburg 199004, Russia;
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Pulyalina AY, Shugurov SM, Larkina AA, Faikov II, Tataurov MV, Rostovtseva VA, Nesterova VP, Saprykina NN, Vinogradova LV, Polotskaya GA. Effect of Star-Shaped Modifiers on the Transport Properties of Polymer Composites in the Butan-1-ol Dehydration Process. RUSS J GEN CHEM+ 2019. [DOI: 10.1134/s1070363219100153] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Pulyalina AY, Tataurov MV, Larkina AA, Faykov II, Rostovtseva VA, Vinogradova LV, Polotskaya GA. Pervaporation Desulfurization of a Thiophene/n-Octane Mixture Using PPO Membranes Modified with Hybrid Star-Shaped Macromolecules. MEMBRANES AND MEMBRANE TECHNOLOGIES 2019. [DOI: 10.1134/s2517751619040085] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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