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Samsudin AM, Roschger M, Wolf S, Hacker V. Preparation and Characterization of QPVA/PDDA Electrospun Nanofiber Anion Exchange Membranes for Alkaline Fuel Cells. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3965. [PMID: 36432251 PMCID: PMC9693389 DOI: 10.3390/nano12223965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 11/04/2022] [Accepted: 11/06/2022] [Indexed: 06/16/2023]
Abstract
In recent years, there has been considerable interest in anion exchange membrane fuel cells (AEMFCs) as part of fuel cell technology. Anion exchange membranes (AEMs) provide a significant contribution to the development of fuel cells, particularly in terms of performance and efficiency. Polymer composite membranes composed of quaternary ammonium poly(vinyl alcohol) (QPVA) as electrospun nanofiber mats and a combination of QPVA and poly(diallyldimethylammonium chloride) (PDDA) as interfiber voids matrix filler were prepared and characterized. The influence of various QPVA/PDDA mass ratios as matrix fillers on anion exchange membranes and alkaline fuel cells was evaluated. The structural, morphological, mechanical, and thermal properties of AEMs were characterized. To evaluate the AEMs' performances, several measurements comprise swelling properties, ion exchange capacity (IEC), hydroxide conductivity (σ), alkaline stability, and single-cell test in fuel cells. The eQP-PDD0.5 acquired the highest hydroxide conductivity of 43.67 ms cm-1 at 80 °C. The tensile strength of the membranes rose with the incorporation of the filler matrix, with TS ranging from 23.18 to 24.95 Mpa. The peak power density and current density of 24 mW cm-2 and 131 mA cm-2 were achieved with single cells comprising eQP-PDD0.5 membrane at 57 °C.
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Affiliation(s)
- Asep Muhamad Samsudin
- Institute of Chemical Engineering and Environmental Technology, Graz University of Technology, 8020 Graz, Austria
- Department of Chemical Engineering, Diponegoro University, Semarang 50275, Indonesia
| | - Michaela Roschger
- Institute of Chemical Engineering and Environmental Technology, Graz University of Technology, 8020 Graz, Austria
| | - Sigrid Wolf
- Institute of Chemical Engineering and Environmental Technology, Graz University of Technology, 8020 Graz, Austria
| | - Viktor Hacker
- Institute of Chemical Engineering and Environmental Technology, Graz University of Technology, 8020 Graz, Austria
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2
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Samsudin AM, Bodner M, Hacker V. A Brief Review of Poly(Vinyl Alcohol)-Based Anion Exchange Membranes for Alkaline Fuel Cells. Polymers (Basel) 2022; 14:polym14173565. [PMID: 36080640 PMCID: PMC9460312 DOI: 10.3390/polym14173565] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 08/23/2022] [Accepted: 08/25/2022] [Indexed: 01/20/2023] Open
Abstract
Anion exchange membrane fuel cells have unique advantages and are thus gaining increasing attention. Poly(vinyl alcohol) (PVA) is one of the potential polymers for the development of anion exchange membranes. This review provides recent studies on PVA-based membranes as alternative anion exchange membranes for alkaline fuel cells. The development of anion exchange membranes in general, including the types, materials, and preparation of anion exchange membranes in the last years, are discussed. The performances and characteristics of recently reported PVA-based membranes are highlighted, including hydroxide conductivity, water uptake, swelling degree, tensile strength, and fuel permeabilities. Finally, some challenging issues and perspectives for the future study of anion exchange membranes are discussed.
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Affiliation(s)
- Asep Muhamad Samsudin
- Institute of Chemical Engineering and Environmental Technology, Graz University of Technology, 8010 Graz, Austria
- Department of Chemical Engineering, Diponegoro University, Semarang 50275, Indonesia
- Correspondence:
| | - Merit Bodner
- Institute of Chemical Engineering and Environmental Technology, Graz University of Technology, 8010 Graz, Austria
| | - Viktor Hacker
- Institute of Chemical Engineering and Environmental Technology, Graz University of Technology, 8010 Graz, Austria
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3
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Wang Q, Huang L, Zheng J, Zhang Q, Qin G, Li S, Zhang S. Design, synthesis and characterization of anion exchange membranes containing guanidinium salts with ultrahigh dimensional stability. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2021.120008] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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4
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Abstract
Rechargeable alkali metal–air batteries have enormous potential in energy storage applications due to their high energy densities, low cost, and environmental friendliness. Membrane separators determine the performance and economic viability of these batteries. Usually, porous membrane separators taken from lithium-based batteries are used. Moreover, composite and cation-exchange membranes have been tested. However, crossover of unwanted species (such as zincate ions in zinc–air flow batteries) and/or low hydroxide ions conductivity are major issues to be overcome. On the other hand, state-of-art anion-exchange membranes (AEMs) have been applied to meet the current challenges with regard to rechargeable zinc–air batteries, which have received the most attention among alkali metal–air batteries. The recent advances and remaining challenges of AEMs for these batteries are critically discussed in this review. Correlation between the properties of the AEMs and performance and cyclability of the batteries is discussed. Finally, strategies for overcoming the remaining challenges and future outlooks on the topic are briefly provided. We believe this paper will play a significant role in promoting R&D on developing suitable AEMs with potential applications in alkali metal–air flow batteries.
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6
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Structure, DFT based investigations on vibrational and nonlinear optical behavior of a new guanidinium cobalt thiocyanate complex. Struct Chem 2019. [DOI: 10.1007/s11224-019-01380-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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7
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Zhang S, Zhu X, Jin C, Hu H. Pyridinium-functionalized crosslinked anion exchange membrane based on multication side chain tethered elastomeric triblock poly(styrene-b-(ethylene-co-butylene)-b-styrene). REACT FUNCT POLYM 2019. [DOI: 10.1016/j.reactfunctpolym.2019.02.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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8
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Paltrinieri L, Huerta E, Puts T, van Baak W, Verver AB, Sudhölter EJ, de Smet LCPM. Functionalized Anion-Exchange Membranes Facilitate Electrodialysis of Citrate and Phosphate from Model Dairy Wastewater. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:2396-2404. [PMID: 30574781 PMCID: PMC6407041 DOI: 10.1021/acs.est.8b05558] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 11/23/2018] [Accepted: 11/28/2018] [Indexed: 06/09/2023]
Abstract
In this study, the preparation of a new, functional anion-exchange membrane (AEM), containing guanidinium groups as the anion-exchanging sites (Gu-100), is described as well as the membrane characterization by XPS, water uptake, permselectivities, and electrical resistances. The functional membrane was also employed in pH-dependent electrodialysis experiments using model dairy wastewater streams. The properties of the new membrane are compared to those of a commercially available anion-exchange membrane bearing conventional quaternary ammonium groups (Gu-0). Guanidinium was chosen for its specific binding properties toward oxyanions: e.g., phosphate. This functional moiety was covalently coupled to an acrylate monomer via a facile two-step synthesis to yield bulk-modified membranes upon polymerization. Significant differences were observed in the electrodialysis experiments for Gu-0 and Gu-100 at pH 7, showing an enhanced phosphate and citrate transport for Gu-100 in comparison to Gu-0. At pH 10 the difference is much more pronounced: for Gu-0 membranes almost no phosphate and citrate transport could be detected, while the Gu-100 membranes transported both ions significantly. We conclude that having guanidinium groups as anion-exchange sites improves the selectivity of AEMs. As the presented monomer synthesis strategy is modular, we consider the implementation of functional groups into a polymer-based membrane via the synthesis of tailor-made monomers as an important step toward selective ion transport, which is relevant for various fields, including water treatment processes and fuel cells.
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Affiliation(s)
- Laura Paltrinieri
- Delft
University of Technology, Department of Chemical
Engineering, Van der Maasweg
9, 2629 HZ Delft, The Netherlands
- Wetsus−European
centre of excellence for sustainable water technology, Oostergoweg 9, 8932 PG Leeuwarden, The Netherlands
| | - Elisa Huerta
- FUJIFILM
Manufacturing Europe BV, Oudenstaart 1, 5000 LJ Tilburg, The Netherlands
| | - Theo Puts
- FUJIFILM
Manufacturing Europe BV, Oudenstaart 1, 5000 LJ Tilburg, The Netherlands
| | - Willem van Baak
- FUJIFILM
Manufacturing Europe BV, Oudenstaart 1, 5000 LJ Tilburg, The Netherlands
| | - Albert B. Verver
- FrieslandCampina, Stationsplein 4, 3818 LE Amersfoort, The Netherlands
| | - Ernst J.R. Sudhölter
- Delft
University of Technology, Department of Chemical
Engineering, Van der Maasweg
9, 2629 HZ Delft, The Netherlands
| | - Louis C. P. M. de Smet
- Delft
University of Technology, Department of Chemical
Engineering, Van der Maasweg
9, 2629 HZ Delft, The Netherlands
- Wetsus−European
centre of excellence for sustainable water technology, Oostergoweg 9, 8932 PG Leeuwarden, The Netherlands
- Wageningen
University & Research, Laboratory of Organic Chemistry, Stippeneng 4, 6708 WE Wageningen, The Netherlands
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9
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Chu JY, Lee KH, Kim AR, Yoo DJ. Improved Physicochemical Stability and High Ion Transportation of Poly(Arylene Ether Sulfone) Blocks Containing a Fluorinated Hydrophobic Part for Anion Exchange Membrane Applications. Polymers (Basel) 2018; 10:E1400. [PMID: 30961325 PMCID: PMC6401760 DOI: 10.3390/polym10121400] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 12/13/2018] [Accepted: 12/15/2018] [Indexed: 12/01/2022] Open
Abstract
A series of anion exchange membranes composed of partially fluorinated poly(arylene ether sulfone)s (PAESs) multiblock copolymers bearing quaternary ammonium groups were synthesized with controlled lengths of the hydrophilic precursor and hydrophobic oligomer via direct polycondensation. The chloromethylation and quaternization proceeded well by optimizing the reaction conditions to improve hydroxide conductivity and physical stability, and the fabricated membranes were very flexible and transparent. Atomic force microscope images of quaternized PAES (QN-PAES) membranes showed excellent hydrophilic/hydrophobic phase separation and distinct ion transition channels. An extended architecture of phase separation was observed by increasing the hydrophilic oligomer length, which resulted in significant improvements in the water uptake, ion exchange capacity, and hydroxide conductivity. Furthermore, the open circuit voltage (OCV) of QN-PAES X10Y23 and X10Y13 was found to be above 0.9 V, and the maximum power density of QN-PAES X10Y13 was 131.7 mW cm-2 at 60 °C under 100% RH.
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Affiliation(s)
- Ji Young Chu
- Department of Energy Storage/Conversion Engineering of Graduate School, Hydrogen and Fuel Cell Research Center, Chonbuk National University, Jeonju 54896, Korea.
| | - Kyu Ha Lee
- Department of Energy Storage/Conversion Engineering of Graduate School, Hydrogen and Fuel Cell Research Center, Chonbuk National University, Jeonju 54896, Korea.
| | - Ae Rhan Kim
- R&D Center for CANUTECH, Business Incubation Center and Department of Bioenvironmental Chemistry, Chonbuk National University, Jeonju 54896, Korea.
| | - Dong Jin Yoo
- Department of Energy Storage/Conversion Engineering of Graduate School, Hydrogen and Fuel Cell Research Center, Chonbuk National University, Jeonju 54896, Korea.
- Department of Life Science, Chonbuk National University, Jeonju 54896, Korea.
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10
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Paltrinieri L, Poltorak L, Chu L, Puts T, van Baak W, Sudhölter EJ, de Smet LC. Hybrid polyelectrolyte-anion exchange membrane and its interaction with phosphate. REACT FUNCT POLYM 2018. [DOI: 10.1016/j.reactfunctpolym.2018.10.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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11
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Zheng Y, Ash U, Pandey RP, Ozioko AG, Ponce-González J, Handl M, Weissbach T, Varcoe JR, Holdcroft S, Liberatore MW, Hiesgen R, Dekel DR. Water Uptake Study of Anion Exchange Membranes. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b00034] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
| | | | | | - Amobi G. Ozioko
- Department of Chemical Engineering, University of Toledo, Toledo, Ohio 43606, United States
| | | | - Michael Handl
- Hochschule
Esslingen - University of Applied Sciences, 73728 Esslingen, Germany
| | - Thomas Weissbach
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada
| | - John R. Varcoe
- Department of Chemistry, University of Surrey, Guildford, GU2 7XH, U.K
| | - Steven Holdcroft
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada
| | - Matthew W. Liberatore
- Department of Chemical Engineering, University of Toledo, Toledo, Ohio 43606, United States
| | - Renate Hiesgen
- Hochschule
Esslingen - University of Applied Sciences, 73728 Esslingen, Germany
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12
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Liu L, Kohl PA. Anion conducting multiblock copolymers with different tethered cations. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/pola.29020] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Lisha Liu
- School of Materials Science and Engineering; Georgia Institute of technology, Atlanta, GA, 30332-0100, Georgia Institute of technology; Atlanta Georgia 30332-0100
| | - Paul A. Kohl
- School of Chemical and Biomolecular Engineering; Georgia Institute of technology; Atlanta Georgia 30332-0100
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13
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Hu EN, Lin CX, Liu FH, Wang XQ, Zhang QG, Zhu AM, Liu QL. Poly(arylene ether nitrile) anion exchange membranes with dense flexible ionic side chain for fuel cells. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2018.01.010] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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14
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Ouadah A, Xu H, Luo T, Gao S, Zhang Z, Li Z, Zhu C. Synthesis of novel copolymers based on p-methylstyrene, N,N-butylvinylimidazolium and polybenzimidazole as highly conductive anion exchange membranes for fuel cell application. RSC Adv 2017. [DOI: 10.1039/c7ra06394f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A series of copolymers based N,N-butylvinylimidazolium, p-methylstyrene and polybenzimidazole as anion exchange membrane materials VIBx/PMSy/PBIz.
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Affiliation(s)
- Amina Ouadah
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Hulin Xu
- Beijing Qintian Science & Technology Development Co. Ltd
- China
| | - Tianwei Luo
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Shuitao Gao
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Zeyu Zhang
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Zhong Li
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
| | - Changjin Zhu
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
- China
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15
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Zhang B, Kaspar RB, Gu S, Wang J, Zhuang Z, Yan Y. A New Alkali-Stable Phosphonium Cation Based on Fundamental Understanding of Degradation Mechanisms. CHEMSUSCHEM 2016; 9:2374-2379. [PMID: 27535197 DOI: 10.1002/cssc.201600468] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Indexed: 06/06/2023]
Abstract
Highly alkali-stable cationic groups are a critical component of hydroxide exchange membranes (HEMs). To search for such cations, we studied the degradation kinetics and mechanisms of a series of quaternary phosphonium (QP) cations. Benzyl tris(2,4,6-trimethoxyphenyl)phosphonium [BTPP-(2,4,6-MeO)] was determined to have higher alkaline stability than the benchmark cation, benzyl trimethylammonium (BTMA). A multi-step methoxy-triggered degradation mechanism for BTPP-(2,4,6-MeO) was proposed and verified. By replacing methoxy substituents with methyl groups, a superior QP cation, methyl tris(2,4,6-trimethylphenyl)phosphonium [MTPP-(2,4,6-Me)] was developed. MTPP-(2,4,6-Me) is one of the most stable cations reported to date, with <20 % degradation after 5000 h at 80 °C in a 1 m KOD in CD3 OD/D2 O (5:1 v/v) solution.
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Affiliation(s)
- Bingzi Zhang
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE, 19716, USA
| | - Robert B Kaspar
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE, 19716, USA
| | - Shuang Gu
- Department of Mechanical Engineering, Wichita State University, Wichita, KS, 67260, USA
| | - Junhua Wang
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE, 19716, USA
| | - Zhongbin Zhuang
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE, 19716, USA
| | - Yushan Yan
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE, 19716, USA.
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16
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Lin CX, Zhuo YZ, Lai AN, Zhang QG, Zhu AM, Ye ML, Liu QL. Side-chain-type anion exchange membranes bearing pendent imidazolium-functionalized poly(phenylene oxide) for fuel cells. J Memb Sci 2016. [DOI: 10.1016/j.memsci.2016.04.054] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Meek KM, Nykaza JR, Elabd YA. Alkaline Chemical Stability and Ion Transport in Polymerized Ionic Liquids with Various Backbones and Cations. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00434] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Kelly M. Meek
- Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Jacob R. Nykaza
- Department
of Chemical and Biological Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Yossef A. Elabd
- Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
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18
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Womble CT, Coates GW, Matyjaszewski K, Noonan KJT. Tetrakis(dialkylamino)phosphonium Polyelectrolytes Prepared by Reversible Addition-Fragmentation Chain Transfer Polymerization. ACS Macro Lett 2016; 5:253-257. [PMID: 35614688 DOI: 10.1021/acsmacrolett.5b00910] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A tetrakis(dialkylamino)phosphonium cation ([P(NR2)4]+) was appended to a styrenic monomer and explored in reversible addition-fragmentation chain transfer polymerization (RAFT) to conduct random copolymerizations of the cationic monomer with styrene. Well-defined polyelectrolytes with molecular weights up to ∼30 100 and dispersities between ∼1.2 and 1.4 were obtained. Up to 18.9 mol % of the ionic monomer could be incorporated into the polymer with hexafluorophosphate or bis(trifluoromethane)sulfonimide acting as the counterion during polymerization. Differential scanning calorimetry of the hexafluorophosphate polymers revealed glass transition temperatures higher than polystyrene likely due to interactions between the anion and the polymer. Thermogravimetric analysis indicated these materials have high thermal stability with decomposition temperatures approaching 400 °C.
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Affiliation(s)
- C. Tyler Womble
- Department
of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213-2617, United States
| | - Geoffrey W. Coates
- Department
of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, United States
| | - Krzysztof Matyjaszewski
- Department
of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213-2617, United States
| | - Kevin J. T. Noonan
- Department
of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213-2617, United States
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19
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Zhu L, Pan J, Wang Y, Han J, Zhuang L, Hickner MA. Multication Side Chain Anion Exchange Membranes. Macromolecules 2016. [DOI: 10.1021/acs.macromol.5b02671] [Citation(s) in RCA: 260] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Liang Zhu
- Department
of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Jing Pan
- Department
of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Ying Wang
- College
of Chemistry and Molecular Sciences, Hubei Key Lab of Electrochemical
Power Sources, Wuhan University, Wuhan 430072, China
| | - Juanjuan Han
- College
of Chemistry and Molecular Sciences, Hubei Key Lab of Electrochemical
Power Sources, Wuhan University, Wuhan 430072, China
| | - Lin Zhuang
- College
of Chemistry and Molecular Sciences, Hubei Key Lab of Electrochemical
Power Sources, Wuhan University, Wuhan 430072, China
| | - Michael A. Hickner
- Department
of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
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20
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Berlinck RGS, Romminger S. The chemistry and biology of guanidine natural products. Nat Prod Rep 2016; 33:456-90. [DOI: 10.1039/c5np00108k] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The present review discusses the isolation, structure determination, synthesis, biosynthesis and biological activities of secondary metabolites bearing a guanidine group.
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Affiliation(s)
| | - Stelamar Romminger
- Instituto de Química de São Carlos
- Universidade de São Paulo
- São Carlos
- Brazil
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21
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Meek KM, Elabd YA. Alkaline Chemical Stability of Polymerized Ionic Liquids with Various Cations. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01223] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kelly M. Meek
- Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Yossef A. Elabd
- Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
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22
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Hugar KM, Kostalik HA, Coates GW. Imidazolium Cations with Exceptional Alkaline Stability: A Systematic Study of Structure–Stability Relationships. J Am Chem Soc 2015; 137:8730-7. [DOI: 10.1021/jacs.5b02879] [Citation(s) in RCA: 284] [Impact Index Per Article: 31.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Kristina M. Hugar
- Department of Chemistry and
Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, United States
| | - Henry A. Kostalik
- Department of Chemistry and
Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, United States
| | - Geoffrey W. Coates
- Department of Chemistry and
Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, United States
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23
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Maurya S, Shin SH, Kim Y, Moon SH. A review on recent developments of anion exchange membranes for fuel cells and redox flow batteries. RSC Adv 2015. [DOI: 10.1039/c5ra04741b] [Citation(s) in RCA: 165] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This review covers recent advancements and future perspectives of AEMs for energy conversion and storage systems such as fuel cells and redox flow batteries.
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Affiliation(s)
- Sandip Maurya
- School of Environmental Science and Engineering
- Gwangju Institute of Science and Technology (GIST)
- Gwangju 500-712
- Republic of Korea
| | - Sung-Hee Shin
- School of Environmental Science and Engineering
- Gwangju Institute of Science and Technology (GIST)
- Gwangju 500-712
- Republic of Korea
| | - Yekyung Kim
- School of Environmental Science and Engineering
- Gwangju Institute of Science and Technology (GIST)
- Gwangju 500-712
- Republic of Korea
| | - Seung-Hyeon Moon
- School of Environmental Science and Engineering
- Gwangju Institute of Science and Technology (GIST)
- Gwangju 500-712
- Republic of Korea
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