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Liu W, Chen S, Li W, Liu X, Fu J, Zhang J, Wang H, Lu S, Xiang Y. A molecular dynamics study on polybenzimidazole based proton exchange membrane with dual proton conductors. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2023.121618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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Deng C, Liu Q, Zhang S, Wang Z, Chen Y, Jian X. Preparation and Properties of Sulfonated Poly(phthalazinone ether ketone) Membranes for Electrodialysis. Polymers (Basel) 2022; 14:polym14091723. [PMID: 35566892 PMCID: PMC9105782 DOI: 10.3390/polym14091723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/16/2022] [Accepted: 04/18/2022] [Indexed: 01/25/2023] Open
Abstract
Sulfonated poly(phthalazinone ether ketones) (SPPEK) with ion exchange capacities from 0.77 to 1.82 mmol·g−1 are synthesized via an electrophilic substitution reaction. Nuclear magnetic resonance and infrared absorption spectroscopy are used to characterize the chemical structure of the obtained polymers for confirming the successful introduction of sulfonic groups. SPPEKs show excellent thermal stability; their temperature required to achieve 5% weight loss is about 360 °C. Accordingly, the obtained membranes possess high ion perm-selectivity, proton conductivity, and low area resistance. Regarding the electrodialysis-related performance of the membranes, the SPPEK-4 membrane has the highest limiting current density (39.8 mA·cm2), resulting from its high content of sulfonic groups. In a desalination test of standard solution, SPPEK-3 and SPPEK-4 membranes exhibit both better salt removal rate and acceptable energy consumption than commercial membrane. Additionally, SPPEK-3 membrane shows outstanding performance in terms of high concentration rate and low energy consumption during saline water treatment, which indicates the feasibility of novel membranes in electrodialysis application.
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Affiliation(s)
- Cong Deng
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China; (C.D.); (Q.L.); (Z.W.); (Y.C.); (X.J.)
| | - Qian Liu
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China; (C.D.); (Q.L.); (Z.W.); (Y.C.); (X.J.)
- Dalian Key Laboratory of Membrane Materials and Membrane Processes, High Performance Polymer Engineering Research Center, Dalian 116024, China
| | - Shouhai Zhang
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China; (C.D.); (Q.L.); (Z.W.); (Y.C.); (X.J.)
- Dalian Key Laboratory of Membrane Materials and Membrane Processes, High Performance Polymer Engineering Research Center, Dalian 116024, China
- Correspondence: ; Tel.: +86-411-8498-6107
| | - Zhaoqi Wang
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China; (C.D.); (Q.L.); (Z.W.); (Y.C.); (X.J.)
- Dalian Key Laboratory of Membrane Materials and Membrane Processes, High Performance Polymer Engineering Research Center, Dalian 116024, China
| | - Yuning Chen
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China; (C.D.); (Q.L.); (Z.W.); (Y.C.); (X.J.)
| | - Xigao Jian
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China; (C.D.); (Q.L.); (Z.W.); (Y.C.); (X.J.)
- Dalian Key Laboratory of Membrane Materials and Membrane Processes, High Performance Polymer Engineering Research Center, Dalian 116024, China
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Crosslinked Proton Exchange Membranes with a Wider Working Temperature Based on Phosphonic Acid Functionalized Siloxane and PPO. Macromol Res 2021. [DOI: 10.1007/s13233-021-9024-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Liu L, Pu Y, Lu Y, Li N, Hu Z, Chen S. Superacid sulfated SnO2 doped with CeO2: A novel inorganic filler to simultaneously enhance conductivity and stabilities of proton exchange membrane. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118972] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Lebedeva OV, Malakhova EA, Raskulova TV, Pozhidaev YN, Pozdnyakov AS, Kulshrestha V, Yadav V. Proton-Exchange Hybrid Membranes: A Copolymer of Ethylene Glycol Vinyl Glycidyl Ether and Vinyl Chloride/Polyorganylsilsesquioxane. MEMBRANES AND MEMBRANE TECHNOLOGIES 2019. [DOI: 10.1134/s2517751619030016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Kim AR, Vinothkannan M, Park CJ, Yoo DJ. Alleviating the Mechanical and Thermal Degradations of Highly Sulfonated Poly(Ether Ether Ketone) Blocks via Copolymerization with Hydrophobic Unit for Intermediate Humidity Fuel Cells. Polymers (Basel) 2018; 10:E1346. [PMID: 30961271 PMCID: PMC6401815 DOI: 10.3390/polym10121346] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Revised: 12/03/2018] [Accepted: 12/03/2018] [Indexed: 11/16/2022] Open
Abstract
In this contribution, sulfonated poly(ether ether ketone) (SPEEK) is inter-connected using a hydrophobic oligomer via poly-condensation reaction to produce SPEEK analogues as PEMs. Prior sulfonation is performed for SPEEK to avoid random sulfonation of multi-block copolymers that may destroy the mechanical toughness of polymer backbone. A greater local density of ionic moieties exist in SPEEK and good thermomechanical properties of hydrophobic unit offer an unique approach to promote the proton conductivity as well as thermomechanical stability of membrane, as verify from AC impedance and TGA. The morphological behavior and phase variation of membranes are explored using FE-SEM and AFM; the triblock (XYX) membranes exhibits a nano-phase separated morphology. Performance of PEFC integrated with blend and block copolymer membranes is determined at 60 °C under 60% RH. As a result, the triblock (XYX) membrane has a high power density than blend (2X1Y) membrane.
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Affiliation(s)
- Ae Rhan Kim
- Department of Bioenvironmental Chemistry and R&D Center for CANUTECH, Business Incubation Center, Chonbuk National University, Jeollabuk-do 54896, Republic of Korea.
| | - Mohanraj Vinothkannan
- Graduate School, Department of Energy Storage/Conversion Engineering, Hydrogen and Fuel Cell Research Center, Chonbuk National University, Jeollabuk-do 54896, Republic of Korea.
| | - Chul Jin Park
- Graduate School, Department of Energy Storage/Conversion Engineering, Hydrogen and Fuel Cell Research Center, Chonbuk National University, Jeollabuk-do 54896, Republic of Korea.
| | - Dong Jin Yoo
- Graduate School, Department of Energy Storage/Conversion Engineering, Hydrogen and Fuel Cell Research Center, Chonbuk National University, Jeollabuk-do 54896, Republic of Korea.
- Department of Life Science, Chonbuk National University, Jeollabuk-do 54896, Republic of Korea.
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