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Macromolecular Research

, Volume 15, Issue 5, pp 459–464 | Cite as

Sulfonated dextran/poly(vinyl alcohol) polymer electrolyte membranes for direct methanol fuel cells

  • Jongok WonEmail author
  • Su Mi Ahn
  • Hyun Dong Cho
  • Ji Young Ryu
  • Heung Yong Ha
  • Yong Soo Kang
Article

Abstract

Polymer electrolyte membranes, featuring ionic channels, were prepared from sulfonated dextran/ poly(vinyl alcohol) (sD/PVA) membranes. A stiff sulfated dextran was chosen as the route for ionic transport, since ionic sites are located along the stiff dextran main chain. The sD/PVA blend membranes were annealed and then chemically crosslinked. The characteristics of the crosslinked sD/PVA membranes were investigated to determine their suitability as proton exchange membranes. The proton conductivity was found to increase with increasing amounts of sD inside the membrane, which reached a maximum and then decreased when the sD content exceeded 30 wt%, while the methanol permeability increased with increasing sD content. The good dispersion of sD inside the membrane, which serves as an ionic channels mimic, played a significant role in proton transportation.

Keywords

polymer electrolyte membranes direct methanol fuel cells poly(vinyl alcohol) dextran 

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References

  1. (1).
    V. Tricolo, N. Carretta, and M. Bartolozzi,J. Electrochem. Soc.,147, 1286 (2000).CrossRefGoogle Scholar
  2. (2).
    K. D. Kreuer,Chem. Mater.,8, 610 (1996).CrossRefGoogle Scholar
  3. (3).
    M. Rikukawa and K. Sanui,Prog. Polym. Sci.,25, 1463 (2000).CrossRefGoogle Scholar
  4. (4).
    J. Won and Y. S. Kang,Macromol. Symp.,204, 79 (2003).CrossRefGoogle Scholar
  5. (5).
    R. W. Kopitzke, C. A. Linkous, H. R. Anderson, and G. L. Melson,J. Electrochem. Soc.,147, 1677 (2000).CrossRefGoogle Scholar
  6. (6).
    M. Kawahara, M. Rikekawa, K. Sanui, and N. Ogata,Solid State Ionics,136, 1193 (2000).CrossRefGoogle Scholar
  7. (7).
    B. Gupta, F. N. Büchi, and G. G. Scherer,Solid State Ionics,61, 213 (1993).CrossRefGoogle Scholar
  8. (8).
    P. L. Shao, K. A. Mauritz, and R. B. Moore,Chem. Mater.,7, 192 (1995).CrossRefGoogle Scholar
  9. (9).
    D. H. Jung, S. Y. Cho, D. H. Peck, D. R. Shin, and J. S. Kim,J. Power Sources,118, 205 (2003).CrossRefGoogle Scholar
  10. (10).
    S.-O. Kim and J. S. Kim,Macromol. Res.,10, 174 (2002).CrossRefGoogle Scholar
  11. (11).
    H. D. Cho, J. Won, H. Y. Ha, and Y. S. Kang,Macromol. Res.,14, 214 (2006).CrossRefGoogle Scholar
  12. (12).
    G.-L. Yuan and N. Kuramoto,Macromolecules,36, 7939 (2003).CrossRefGoogle Scholar
  13. (13).
    W. S. Dai and T. A. Barbari,J. Membr. Sci.,156, 67 (1999).CrossRefGoogle Scholar
  14. (14).
    J. Won, H. H. Park, Y. J. Kim, S. W. Choi, H. Y. Ha, I.-H. Oh, H. S. Kim, Y. S. Kang, and K. J. Ihn,Macromolecules,36, 3228 (2003).CrossRefGoogle Scholar
  15. (15).
    J. Won, S. W. Choi, Y. S. Kang, H. Y. Ha, I.-H. Oh, H. S. Kim, K. T. Kim, and W. H. Jo,J. Membr. Sci.,214, 245 (2003).CrossRefGoogle Scholar
  16. (16).
    Y. Woo, S. Y. Oh, Y. S. Kang, and B. Jung,J. Membr. Sci.,220, 31 (2003).CrossRefGoogle Scholar
  17. (17).
    J. Kim, B. Kim, B. Jung, Y. S. Kang, H. Y. Ha, I.-H. Oh, and K. J. Ihn, J. Macromol.Rapid Commun.,23, 375 (2002).CrossRefGoogle Scholar
  18. (18).
    V. Tricoli,J. Electrochem. Soc.,145, 3798 (1998).CrossRefGoogle Scholar
  19. (19).
    N. Carretta, V. Tricoli, and F. Picchioni,J. Membr. Sci.,166, 189 (2000).CrossRefGoogle Scholar
  20. (20).
    M.-S. Kang, J. H. Kim, J. Won, S.-H. Moon, and Y. S. Kang,J. Membr. Sci.,247, 127 (2005).CrossRefGoogle Scholar
  21. (21).
    M.-S. Kang, Y.-J. Choi, and S.-H. Moon,J. Membr. Sci.,207, 157 (2002).CrossRefGoogle Scholar
  22. (22).
    J. H. Son, Y. S. Kang, and J. Won,J. Membr. Sci.,281, 345 (2006).CrossRefGoogle Scholar
  23. (23).
    M. A. Vargas, R. A. Vargas, and B.-E. Mellander,Electrochim. Acta,44, 4227 (1999).CrossRefGoogle Scholar

Copyright information

© The Polymer Society of Korea and Springer 2007

Authors and Affiliations

  • Jongok Won
    • 1
    Email author
  • Su Mi Ahn
    • 1
  • Hyun Dong Cho
    • 1
  • Ji Young Ryu
    • 2
  • Heung Yong Ha
    • 2
  • Yong Soo Kang
    • 3
  1. 1.Department of Applied ChemistrySejong UniversitySeoulKorea
  2. 2.Fuel Cell Research CenterKorea Institute of Science and TechnologySeoulKorea
  3. 3.Division of Chemical EngineeringHangyang UniversitySeoulKorea

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