2101
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Pervaporation of water from aqueous sulfuric acid at elevated temperatures using Nafion® membranes. J Memb Sci 2009. [DOI: 10.1016/j.memsci.2008.10.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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2102
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Conti F, Negro E, Di Noto V. First time-resolved EPR observation of Nafion photochemistry. Chem Commun (Camb) 2009:7006-8. [DOI: 10.1039/b913870f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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2103
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Jin YG, Qiao SZ, Xu ZP, Yan Z, Huang Y, Diniz da Costa JC, Lu GQ. Phosphonic acid functionalized silicas for intermediate temperature proton conduction. ACTA ACUST UNITED AC 2009. [DOI: 10.1039/b819379g] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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2104
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Chen K, Chen X, Yaguchi K, Endo N, Higa M, Okamoto KI. Synthesis and properties of novel sulfonated polyimides bearing sulfophenyl pendant groups for fuel cell application. POLYMER 2009. [DOI: 10.1016/j.polymer.2008.11.020] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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2105
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2106
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Sel O, Laberty-Robert C, Azais T, Sanchez C. Designing meso- and macropore architectures in hybrid organic–inorganic membranes by combining surfactant and breath figure templating (BFT). Phys Chem Chem Phys 2009; 11:3733-41. [DOI: 10.1039/b821506e] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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2107
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Giffin GA, Castillo FY, Frech R, Glatzhofer DT, Burba CM. Spectroscopic investigation of proton-conducting, cross-linked linear poly(ethylenimine) hydrochloride membranes. POLYMER 2009. [DOI: 10.1016/j.polymer.2008.10.051] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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2108
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Oishi A, Matsuoka H, Yasuda T, Watanabe M. Novel styrene/N-phenylmaleimidealternating copolymers with pendant sulfonimide acid groups for polymer electrolyte fuel cell applications. ACTA ACUST UNITED AC 2009. [DOI: 10.1039/b815390f] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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2109
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Horan JL, Genupur A, Ren H, Sikora BJ, Kuo MC, Meng F, Dec SF, Haugen GM, Yandrasits MA, Hamrock SJ, Frey MH, Herring AM. Copolymerization of divinylsilyl-11-silicotungstic acid with butyl acrylate and hexanediol diacrylate: synthesis of a highly proton-conductive membrane for fuel-cell applications. CHEMSUSCHEM 2009; 2:226-229. [PMID: 19170068 DOI: 10.1002/cssc.200800237] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Highly conducive to high conductivity: Polyoxometalates were incorporated in the backbone of a hydrocarbon polymer to produce proton-conducting films. These first-generation materials contain large, dispersed clusters of polyoxometalates. Although the morphology of these films is not yet optimal, they already demonstrate practical proton conductivities and proton diffusion within the clusters appears to be very high.
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Affiliation(s)
- James L Horan
- Department of Chemistry and Geochemistry, Colorado School of Mines, Golden, CO 80401, USA
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2110
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Choe YK, Tsuchida E, Ikeshoji T, Yamakawa S, Hyodo SA. Nature of proton dynamics in a polymer electrolyte membrane, nafion: a first-principles molecular dynamics study. Phys Chem Chem Phys 2009; 11:3892-9. [PMID: 19440617 DOI: 10.1039/b819535h] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Yoong-Kee Choe
- National Institute of Advanced Industrial Science and Technology , Tsukuba, 305-8578, Japan.
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2111
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Yan XM, Mei P, Mi Y, Gao L, Qin S. Proton exchange membrane with hydrophilic capillaries for elevated temperature PEM fuel cells. Electrochem commun 2009. [DOI: 10.1016/j.elecom.2008.10.040] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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2112
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Allahyarov E, Taylor PL. Simulation Study of the Correlation between Structure and Conductivity in Stretched Nafion. J Phys Chem B 2008; 113:610-7. [DOI: 10.1021/jp8047746] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Elshad Allahyarov
- Department of Physics, Case Western Reserve University, Cleveland, Ohio 44106, and Joint Institute of High Temperatures, Russian Academy of Sciences (IVTAN), Moscow 125412, Russia
| | - Philip L. Taylor
- Department of Physics, Case Western Reserve University, Cleveland, Ohio 44106
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2113
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Lue SJ, Shieh SJ. Water States in Perfluorosulfonic Acid Membranes Using Differential Scanning Calorimetry. J MACROMOL SCI B 2008. [DOI: 10.1080/00222340802561649] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- S. Jessie Lue
- a Department of Chemical and Materials Engineering and Pollution Prevention Group, Green Technology Research Center , Chang Gung University , Kwei-shan, Taoyuan County, Taiwan
| | - Song-Jiang Shieh
- a Department of Chemical and Materials Engineering and Pollution Prevention Group, Green Technology Research Center , Chang Gung University , Kwei-shan, Taoyuan County, Taiwan
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2114
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Hofmann DWM, Kuleshova L, D’Aguanno B, Di Noto V, Negro E, Conti F, Vittadello M. Investigation of Water Structure in Nafion Membranes by Infrared Spectroscopy and Molecular Dynamics Simulation. J Phys Chem B 2008; 113:632-9. [DOI: 10.1021/jp806761h] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Liudmila Kuleshova
- CRS4, Parco Scientifico e Tecnologico, POLARIS, Edificio 1, 09010 Pula, Italy
| | - Bruno D’Aguanno
- CRS4, Parco Scientifico e Tecnologico, POLARIS, Edificio 1, 09010 Pula, Italy
| | - Vito Di Noto
- Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, 35131 Padova (PD), Italy
| | - Enrico Negro
- Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, 35131 Padova (PD), Italy
| | - Fosca Conti
- Dipartimento di Scienze Chimiche, Università di Padova, via Marzolo 1, 35131 Padova (PD), Italy
| | - Michele Vittadello
- Department of Physical, Environmental and Computer Sciences, City University of New York/Medgar Evers College, 1650 Bedford Avenue, Brooklyn, New York 11225
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2115
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Takamuku S, Akizuki K, Abe M, Kanesaka H. Synthesis and characterization of postsulfonated poly(arylene ether sulfone) diblock copolymers for proton exchange membranes. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/pola.23181] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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2116
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Affiliation(s)
- Viatcheslav Freger
- Zuckerberg Institute for Water Research and Department of Biotechnology and Environmental Engineering, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
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2117
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Li J, Wilmsmeyer KG, Madsen LA. Anisotropic Diffusion and Morphology in Perfluorosulfonate Ionomers Investigated by NMR. Macromolecules 2008. [DOI: 10.1021/ma802106g] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jing Li
- Department of Chemistry and Macromolecules and Interfaces Institute, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - Kyle G. Wilmsmeyer
- Department of Chemistry and Macromolecules and Interfaces Institute, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
| | - Louis A. Madsen
- Department of Chemistry and Macromolecules and Interfaces Institute, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
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2118
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Volkov VV, Mchedlishvili BV, Roldugin VI, Ivanchev SS, Yaroslavtsev AB. Membranes and nanotechnologies. ACTA ACUST UNITED AC 2008. [DOI: 10.1134/s1995078008110025] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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2119
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Oh KS, Kim DH, Park S. Behaviour of water molecules in Nafion 117 for polymer electrolyte membrane fuel cell by molecular dynamics simulation. MOLECULAR SIMULATION 2008. [DOI: 10.1080/08927020802191941] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Kyung Su Oh
- a Department of Mechanical Engineering , Hongik University , Seoul, South Korea
| | - Dong Hyun Kim
- a Department of Mechanical Engineering , Hongik University , Seoul, South Korea
| | - Seungho Park
- b Department of Mechanical and System Design Engineering , Hongik University , Seoul, South Korea
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2120
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Malek K, Eikerling M, Wang Q, Liu Z, Otsuka S, Akizuki K, Abe M. Nanophase segregation and water dynamics in hydrated Nafion: Molecular modeling and experimental validation. J Chem Phys 2008; 129:204702. [DOI: 10.1063/1.3000641] [Citation(s) in RCA: 107] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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2121
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Satterfield MB, Benziger JB. Viscoelastic properties of Nafion at elevated temperature and humidity. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/polb.21608] [Citation(s) in RCA: 102] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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2122
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Taguet A, Ameduri B, Boutevin B. Synthesis of original para
-sulfonic acid aminoethylthioethylbenzenesulfonic by telomerization, and its grafting onto poly(VDF-co
-HFP) copolymers for proton exchange membrane for fuel cell. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/pola.23129] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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2123
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Silicate and zirconium phosphate modified Nafion/PTFE composite membranes for high temperature PEMFC. JOURNAL OF POLYMER RESEARCH 2008. [DOI: 10.1007/s10965-008-9255-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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2124
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Majsztrik PW, Bocarsly AB, Benziger JB. Viscoelastic Response of Nafion. Effects of Temperature and Hydration on Tensile Creep. Macromolecules 2008. [DOI: 10.1021/ma801811m] [Citation(s) in RCA: 115] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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2125
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Nakabayashi K, Matsumoto K, Higashihara T, Ueda M. Influence of adjusted hydrophilic-hydrophobic lengths in sulfonated multiblock copoly(ether sulfone) membranes for fuel cell application. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/pola.23038] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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2126
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Voropaeva EY, Stenina IA, Yaroslavtsev AB. Ion transport in MF-4SK membranes modified with hydrous zirconia. RUSS J INORG CHEM+ 2008. [DOI: 10.1134/s0036023608110016] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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2127
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Geormezi M, Deimede V, Gourdoupi N, Triantafyllopoulos N, Neophytides S, Kallitsis JK. Novel Pyridine-Based Poly(ether sulfones) and their Study in High Temperature PEM Fuel Cells. Macromolecules 2008. [DOI: 10.1021/ma801678h] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- M. Geormezi
- Department of Chemistry, University of Patras, GR-26500 Rio-Patras, Greece, Institute of Chemical Engineering and High Temperature Chemical Processes, ICE/HT-FORTH, Post Office Box 1414, GR-26504 Rio-Patras, Greece, and Advent Technologies SA, Patras Science Park, GR-26504 Rio-Patras, Greece
| | - V. Deimede
- Department of Chemistry, University of Patras, GR-26500 Rio-Patras, Greece, Institute of Chemical Engineering and High Temperature Chemical Processes, ICE/HT-FORTH, Post Office Box 1414, GR-26504 Rio-Patras, Greece, and Advent Technologies SA, Patras Science Park, GR-26504 Rio-Patras, Greece
| | - N. Gourdoupi
- Department of Chemistry, University of Patras, GR-26500 Rio-Patras, Greece, Institute of Chemical Engineering and High Temperature Chemical Processes, ICE/HT-FORTH, Post Office Box 1414, GR-26504 Rio-Patras, Greece, and Advent Technologies SA, Patras Science Park, GR-26504 Rio-Patras, Greece
| | - N. Triantafyllopoulos
- Department of Chemistry, University of Patras, GR-26500 Rio-Patras, Greece, Institute of Chemical Engineering and High Temperature Chemical Processes, ICE/HT-FORTH, Post Office Box 1414, GR-26504 Rio-Patras, Greece, and Advent Technologies SA, Patras Science Park, GR-26504 Rio-Patras, Greece
| | - S. Neophytides
- Department of Chemistry, University of Patras, GR-26500 Rio-Patras, Greece, Institute of Chemical Engineering and High Temperature Chemical Processes, ICE/HT-FORTH, Post Office Box 1414, GR-26504 Rio-Patras, Greece, and Advent Technologies SA, Patras Science Park, GR-26504 Rio-Patras, Greece
| | - J. K. Kallitsis
- Department of Chemistry, University of Patras, GR-26500 Rio-Patras, Greece, Institute of Chemical Engineering and High Temperature Chemical Processes, ICE/HT-FORTH, Post Office Box 1414, GR-26504 Rio-Patras, Greece, and Advent Technologies SA, Patras Science Park, GR-26504 Rio-Patras, Greece
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2128
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Viscometric behavior of disulfonated poly(arylene ether sulfone) random copolymers used as proton exchange membranes. POLYMER 2008. [DOI: 10.1016/j.polymer.2008.09.018] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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2129
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Vishnyakov A, Neimark AV. Molecular Dynamics Simulation of Nanoscale Distribution and Mobility of Water and Dimethylmethylphosphonate in Sulfonated Polystyrene. J Phys Chem B 2008; 112:14905-10. [DOI: 10.1021/jp802256q] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Aleksey Vishnyakov
- Department of Chemical and Biochemical Engineering Rutgers, The State University of New Jersey, 98 Brett Road, Piscataway, New Jersey 08854
| | - Alexander V. Neimark
- Department of Chemical and Biochemical Engineering Rutgers, The State University of New Jersey, 98 Brett Road, Piscataway, New Jersey 08854
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2130
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Ohkubo T, Kidena K, Ohira A. Determination of a Micron-Scale Restricted Structure in a Perfluorinated Membrane from Time-Dependent Self-Diffusion Measurements. Macromolecules 2008. [DOI: 10.1021/ma801331e] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- T. Ohkubo
- FC-Cubic, National Institute of Advanced Industrial Science and Technology (AIST), 2-41-6 Aomi, Koto-ku, Tokyo 135-0064, Japan
| | - K. Kidena
- FC-Cubic, National Institute of Advanced Industrial Science and Technology (AIST), 2-41-6 Aomi, Koto-ku, Tokyo 135-0064, Japan
| | - A. Ohira
- FC-Cubic, National Institute of Advanced Industrial Science and Technology (AIST), 2-41-6 Aomi, Koto-ku, Tokyo 135-0064, Japan
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2131
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Voropaeva EY, Stenina IA, Yaroslavtsev AB. Transport properties of hydrous-silica-modified MF-4SK membranes. RUSS J INORG CHEM+ 2008. [DOI: 10.1134/s003602360810001x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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2132
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Voropaeva EY, Sanginov EA, Volkov VI, Pavlov AA, Shalimov AS, Stenina IA, Yaroslavtsev AB. Transport properties of MF-4SK membranes modified with inorganic dopants. RUSS J INORG CHEM+ 2008. [DOI: 10.1134/s0036023608100021] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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2133
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Kusoglu A, Santare MH, Karlsson AM, Cleghorn S, Johnson WB. Micromechanics model based on the nanostructure of PFSA membranes. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/polb.21573] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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2134
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Duncan AJ, Leo DJ, Long TE. Beyond Nafion: Charged Macromolecules Tailored for Performance as Ionic Polymer Transducers. Macromolecules 2008. [DOI: 10.1021/ma800956v] [Citation(s) in RCA: 115] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Andrew J. Duncan
- Department of Mechanical Engineering, Department of Chemistry, and Macromolecules and Interfaces Institute (MII), Virginia Tech, Blacksburg, Virginia 24061-0212
| | - Donald J. Leo
- Department of Mechanical Engineering, Department of Chemistry, and Macromolecules and Interfaces Institute (MII), Virginia Tech, Blacksburg, Virginia 24061-0212
| | - Timothy E. Long
- Department of Mechanical Engineering, Department of Chemistry, and Macromolecules and Interfaces Institute (MII), Virginia Tech, Blacksburg, Virginia 24061-0212
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2135
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Villaluenga J, Barragán V, Izquierdo-Gil M, Godino M, Seoane B, Ruiz-Bauzá C. Comparative study of liquid uptake and permeation characteristics of sulfonated cation-exchange membranes in water and methanol. J Memb Sci 2008. [DOI: 10.1016/j.memsci.2008.06.049] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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2136
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Zhang Z, Marble AE, MacMillan B, Promislow K, Martin J, Wang H, Balcom BJ. Spatial and temporal mapping of water content across Nafion membranes under wetting and drying conditions. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2008; 194:245-253. [PMID: 18678514 DOI: 10.1016/j.jmr.2008.07.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2008] [Revised: 07/10/2008] [Accepted: 07/14/2008] [Indexed: 05/26/2023]
Abstract
Water transport and water management are fundamental to polymer electrolyte membrane fuel cell operation. Accurate measurements of water content within and across the Nafion layer are required to elucidate water transport behavior and validate existing numerical models. We report here a direct measurement of water content profiles across a Nafion layer under wetting and drying conditions, using a novel magnetic resonance imaging methodology developed for this purpose. This method, multi-echo double half k-space spin echo single point imaging, based on a pure phase encode spin echo, is designed for high resolution 1D depth imaging of thin film samples. The method generates high resolution (<8 microm) depth images with an SNR greater than 20, in an image acquisition time of less than 2 min. The high temporal resolution permits water content measurements in the transient states of wetting and drying, in addition to the steady state.
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Affiliation(s)
- Ziheng Zhang
- MRI Centre, Department of Physics, University of New Brunswick, Post Office Box 4400 I.U.C., Fredericton, NB, Canada E3B 5A3
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2137
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Investigation of the through-plane impedance technique for evaluation of anisotropy of proton conducting polymer membranes. J Electroanal Chem (Lausanne) 2008. [DOI: 10.1016/j.jelechem.2008.05.017] [Citation(s) in RCA: 187] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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2138
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Hydrophilic–hydrophobic multiblock copolymers based on poly(arylene ether sulfone)s as novel proton exchange membranes – Part B. POLYMER 2008. [DOI: 10.1016/j.polymer.2008.08.046] [Citation(s) in RCA: 94] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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2139
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Matsumoto K, Higashihara T, Ueda M. Star-Shaped Sulfonated Block Copoly(ether ketone)s as Proton Exchange Membranes. Macromolecules 2008. [DOI: 10.1021/ma8015163] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kazuya Matsumoto
- Department of Organic and Polymeric Materials, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 H120 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Tomoya Higashihara
- Department of Organic and Polymeric Materials, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 H120 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Mitsuru Ueda
- Department of Organic and Polymeric Materials, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 H120 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
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2140
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Baek KY. Synthesis and characterization of sulfonated block copolymers by atom transfer radical polymerization. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/pola.22568] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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2141
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Lee M, Lee JN, Kim J, Kim JH. Reversible capture of genomic DNA by a Nafion-coated electrode. Anal Biochem 2008; 380:335-7. [PMID: 18585996 DOI: 10.1016/j.ab.2008.06.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2008] [Revised: 05/29/2008] [Accepted: 06/01/2008] [Indexed: 10/21/2022]
Abstract
A method in which an electrode itself is used as the sample preparation microchip is described. The gold electrode was coated with an ion-permeable polymer, Nafion, to prevent the permanent adsorption and destruction of DNA. The modified electrode was able to capture as much DNA as the bare gold electrode and to release the captured DNA effectively, whereas the bare gold electrode could not release bound DNA. The elution efficiency was greater than 70% for the Nafion-coated electrode, whereas it was less than 10% for the bare electrode. The DNA obtained was undamaged and could be amplified by polymerase chain reaction.
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Affiliation(s)
- Myoyong Lee
- Bio and Health Lab, Samsung Advanced Institute of Technology, Mt. 14-1, Nongseo-Dong, Giheung-Gu, Yongin-Si 449-712, South Korea
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2142
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Lee PC, Han TH, Kim DO, Lee JH, Kang SJ, Chung CH, Lee Y, Cho SM, Choi HG, Kim T, Lee E, Nam JD. In situ formation of platinum nanoparticles in Nafion recast film for catalyst-incorporated ion-exchange membrane in fuel cell applications. J Memb Sci 2008. [DOI: 10.1016/j.memsci.2008.05.054] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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2143
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Song H, Lee SC, Heo HY, Kim DI, Lee DH, Lee JH, Chang JY. Improvement of thermal stability of sulfonated polyphosphazenes by introducing a self-crosslinkable group. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/pola.22900] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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2144
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Fu RQ, Julius D, Hong L, Lee JY. PPO-based acid–base polymer blend membranes for direct methanol fuel cells. J Memb Sci 2008. [DOI: 10.1016/j.memsci.2008.06.002] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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2145
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Araujo S, Likhachev DY, Rusanov AL, Belomoina NM, Kostoglodov PV, Fomin EA. Sulfonated poly(pyromellitimides) and poly(naphthylimides). POLYMER SCIENCE SERIES A 2008. [DOI: 10.1134/s0965545x08080075] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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2146
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Choe YK, Tsuchida E, Ikeshoji T, Yamakawa S, Hyodo SA. Nature of Water Transport and Electro-Osmosis in Nafion: Insights from First-Principles Molecular Dynamics Simulations under an Electric Field. J Phys Chem B 2008; 112:11586-94. [PMID: 18717541 DOI: 10.1021/jp8041878] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yoong-Kee Choe
- Research Institute for Computational Sciences (RICS), National Institute of Advanced Industrial Science and Technology (AIST), Centeral-2, Umezono 1-1-1, Tsukuba 305-8578, Japan, Toyota Central R&D Laboratories, Inc., Nagakute, Aichi, 480-1192, Japan, and CREST, Japan Science and Technology Corporation (JST), Honcho 4-1-8, Kawaguchi, Saitama 332-0012, Japan
| | - Eiji Tsuchida
- Research Institute for Computational Sciences (RICS), National Institute of Advanced Industrial Science and Technology (AIST), Centeral-2, Umezono 1-1-1, Tsukuba 305-8578, Japan, Toyota Central R&D Laboratories, Inc., Nagakute, Aichi, 480-1192, Japan, and CREST, Japan Science and Technology Corporation (JST), Honcho 4-1-8, Kawaguchi, Saitama 332-0012, Japan
| | - Tamio Ikeshoji
- Research Institute for Computational Sciences (RICS), National Institute of Advanced Industrial Science and Technology (AIST), Centeral-2, Umezono 1-1-1, Tsukuba 305-8578, Japan, Toyota Central R&D Laboratories, Inc., Nagakute, Aichi, 480-1192, Japan, and CREST, Japan Science and Technology Corporation (JST), Honcho 4-1-8, Kawaguchi, Saitama 332-0012, Japan
| | - Shunsuke Yamakawa
- Research Institute for Computational Sciences (RICS), National Institute of Advanced Industrial Science and Technology (AIST), Centeral-2, Umezono 1-1-1, Tsukuba 305-8578, Japan, Toyota Central R&D Laboratories, Inc., Nagakute, Aichi, 480-1192, Japan, and CREST, Japan Science and Technology Corporation (JST), Honcho 4-1-8, Kawaguchi, Saitama 332-0012, Japan
| | - Shi-aki Hyodo
- Research Institute for Computational Sciences (RICS), National Institute of Advanced Industrial Science and Technology (AIST), Centeral-2, Umezono 1-1-1, Tsukuba 305-8578, Japan, Toyota Central R&D Laboratories, Inc., Nagakute, Aichi, 480-1192, Japan, and CREST, Japan Science and Technology Corporation (JST), Honcho 4-1-8, Kawaguchi, Saitama 332-0012, Japan
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2147
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Goswami S, Klaus S, Benziger J. Wetting and absorption of water drops on Nafion films. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2008; 24:8627-33. [PMID: 18611043 DOI: 10.1021/la800799a] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Water drops on Nafion films caused the surface to switch from being hydrophobic to being hydrophilic. Contact angle hysteresis of >70 degrees between advancing and receding values were obtained by the Wilhelmy plate technique. Sessile drop measurements were consistent with the advancing contact angle; the sessile drop contact angle was 108 degrees . Water drop adhesion, as measured by the detachment angle on an inclined plane, showed much stronger water adhesion on Nafion than Teflon. Sessile water and methanol drops caused dry Nafion films to deflect. The flexure went through a maximum with time. Flexure increased with contact area of the drop, but was insensitive to the film thickness. Methanol drops spread more on Nafion and caused larger film flexure than water. The results suggest that the Nafion surface was initially hydrophobic but water and methanol drops caused hydrophilic sulfonic acid domains to be drawn to the Nafion surface. Local swelling of the film beneath the water drop caused the film to buckle. The maximum flexure is suggested to result from motion of a water swelling front through the Nafion film.
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Affiliation(s)
- Sharonmoyee Goswami
- Department of Chemical Engineering, Princeton University, Princeton, New Jersey 08544-5263, USA
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2148
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Mortensen K, Gasser U, Gürsel SA, Scherer GG. Structural characterization of radiation‐grafted block copolymer films, using SANS technique. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/polb.21502] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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2149
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Warren DS, McQuillan AJ. Infrared Spectroscopic and DFT Vibrational Mode Study of Perfluoro(2-ethoxyethane) Sulfonic Acid (PES), a Model Nafion Side-Chain Molecule. J Phys Chem B 2008; 112:10535-43. [DOI: 10.1021/jp801838n] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- David S. Warren
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin, New Zealand
| | - A. James McQuillan
- Department of Chemistry, University of Otago, P.O. Box 56, Dunedin, New Zealand
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2150
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Akinaga Y, Hyodo SA, Ikeshoji T. Lattice Boltzmann simulations for proton transport in 2-D model channels of Nafion. Phys Chem Chem Phys 2008; 10:5678-88. [PMID: 18956102 DOI: 10.1039/b805107k] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Proton conductance in a 2-D channel with a slab-like structure was studied to verify that the lattice Boltzmann method (LBM) can be used as a simulation tool for proton conduction in a Nafion membrane, which is a mesoscopic system with a highly disordered porous structure. Diffusion resulting from a concentration gradient and migration by an electrostatic force were considered as the origins of proton transport. The electrostatic force acting on a proton was computed by solving the Poisson equation. The proton concentration in the membrane is expressed as a continuous function and the sulfonic charge is placed discretely. The space-averaged conductance of protons in a nonequilibrium stationary state was evaluated as a function of the structural parameters: namely, channel width and distribution of the sulfonic groups. The resulting space-averaged conductance deviates from the bulk values, depending particularly on the sulfonic group distribution. Details of the simulation scheme are described and the applicability of the present scheme to real membranes is discussed.
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Affiliation(s)
- Yoshinobu Akinaga
- Research Institute for Computational Sciences (RICS), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan.
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