Anhydrous polymer electrolyte membranes with cross-linked structure have been prepared based on poly(vinyl alcohol-co-ethylene) (PVA-co-PE) copolymer. The PVA units of copolymer served to induce thermal cross-linking with 4,5-imidazole dicarboxylic acid (IDA) via esterification while PE units controlled the membrane swelling and the mechanical properties of films. Upon doping with phosphoric acid (PA, H3PO4) to form imidazole-PA complexes, the proton conductivity of membranes continuously increased with increasing PA content. As a result, proton conductivity reached 0.01 S/cm at 100 °C under anhydrous conditions. X-ray diffraction analysis revealed that both the d-spacing and crystalline peak of membranes were reduced upon introduction of IDA/PA due to the cross-linking effect. The PVA-co-PE/IDA/PA membranes exhibited good mechanical properties, e.g., 150 MPa of Young’s modulus, as determined by a universal testing machine. Thermal gravimetric analysis also represented that the thermal stability of membranes was increased up to 200 °C upon introduction of IDA/PA.
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Mikhailenko SD, Wang KP, Kaliaguine S, Xing PX, Robertson GP, Guiver MD (2004) J Membr Sci 233:93
Nasef MM, Zubir NA, Ismail AF, Dahlan KZM, Saidi H, Khayet M (2006) J Power Sources 156:200
Ismail AF, Zubir N, Nasef MM, Dahlan KM, Hassan AR (2005) J Membr Sci 254:189
Smitha B, Sridhar S, Khan AA (2003) J Membr Sci 225:63
Smitha B, Sridhar S, Khan AA (2005) J Membr Sci 259:10
Itoh T, Hirai K, Tamura M, Uno T, Kubo M, Aihara Y (2008) J Power Sources 178:627
Ünügür Çelik S, Bozkurt A (2008) Eur Polym J 44:213
Ünügür Çelik S, Akbey U, Bozkurt A, Graf R, Spiess HY (2008) Macromol Chem Phys 209:593
Yamada M, Honma I (2005) Electrochim Acta 50:2837
Yamada M, Honma I (2005) Polymer 46:2986
Di Vona ML, D’Epifanio A, Marani D, Trombetta M, Traversa E, Licoccia S (2006) J Membr Sci 279:186
Kopitzke RW, Linkous CA, Anderson HR, Melson GL (2000) J Electrochem Soc 147:1677
Wang JT, Lin WF, Weber M, Wasmus S, Savinell RF (1998) Electrochim Acta 43:3821
Schuster M, Meyer WH, Wegner G, Herz HG, Ise M, Schuster M (2001) Solid State Ionics 145:85
Sun J, MacFarlane DR, Forsyth M (2001) Electrochim Acta 46:1673
Mabh S, Noda A, Mitsushima S, Watanabe M (2003) Chem Commun 938
Kim YW, Choi JK, Park JT, Kim JH (2008) J Membr Sci 313:315
Lee DK, Kim YW, Choi JK, Min BR, Kim JH (2008) J Appl Polym Sci 107:819
Kim DS, Park HB, Rhim JW, Lee YM (2004) J Membr Sci 240:37
Park JT, Lee KJ, Kang MS, Kang YS, Kim JH (2007) J Appl Polym Sci 106:4083
Bozkurt A, Meyer HW (2001) Solid State Ionics 138:259
Rajendran S, Sivakumar M, Subadevi R (2004) Solid State Ionics 167:335
Asensio JA, Gomez-Romero P (2005) Fuel Cells 5:336
This work was supported by the Korea Science and Engineering Foundation (KOSEF) grant funded by the Korea government (MEST) (R01-2008-000-10112-0) and (MOEHRD, Basic Research Promotion Fund) (KRF-2008-331-D00152).
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Ahn, S.H., Lee, D.K., Seo, J.A. et al. Preparation and characterization of anhydrous polymer electrolyte membranes based on poly(vinyl alcohol-co-ethylene) copolymer. Ionics 16, 475–480 (2010). https://doi.org/10.1007/s11581-009-0412-7
- Polymer electrolyte membrane
- Proton conductivity
- Fuel cells