Membrane Journal (멤브레인)

The Membrane Society of Korea (한국막학회)
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Preparation of Cation Exchange Membrane using Polybenzimidazole and Its Characteristic

폴리벤지미다졸(PBI)을 이용한 양이온교환막의 제조 및 특성

  • 김정근 (한국에너지기술연구원 에너지효율연구단) ;
  • 이상호 (한국에너지기술연구원 에너지효율연구단) ;
  • 유철휘 (호서대학교 일반대학원 그린에너지공학과) ;
  • 황갑진 (호서대학교 일반대학원 그린에너지공학과)
  • Received : 2012.06.26
  • Accepted : 2012.08.30
  • Published : 2012.08.31
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Abstract

Polybenzimidazole (PBI) was prepared by condensation polymerization using diaminobenzidine (DAB) and isophtalic acid (IPAc). The cation exchange membrane was prepared by introduce the ion exchange group in the PBI polymer. It was confirmed from FT-IR analysis that the prepared PBI powder had same peak compared with commercial PBI power. The ionic conductivity of PBI film was $0.1{\sim}0.9{\times}10^{-2}$ S/cm. The ionic conductivity of prepared SPBI cation exchange membrane showed $3.7{\sim}4.7{\times}10^{-2}$ S/cm and had higher than Nafion117 ($2.0{\times}10^{-2}$ S/cm).

다이아미노벤지딘(diaminobenzidine, DAB)과 이소프탈산(isophtalic acid, IPAc)으로부터 폴리벤지미다졸(PBI)을 합성한 후 이온교환기의 도입에 의해 양이온교환막을 제작하였다. 제조한 폴리벤지미다졸(PBI)의 FT-IR분석으로부터 시판의 PBI와 같은 피크를 보임을 확인하였다. 양이온교환기를 도입하지 않은 PBI 필름의 이온 전도도는 $0.1{\sim}0.9{\times}10^{-2}$ S/cm를 나타냈다. 이온교환기를 도입하여 제작한 SPBI 양이온교환막의 이온전도도는 $3.7{\sim}4.7{\times}10^{-2}$ S/cm을 보였고, Nafion117의 $2.0{\times}10^{-2}$ S/cm보다 높은 값을 보였다.

Keywords

References

  1. G.-J. Hwang and H. Ohya, "Preparation of anion exchange membrane based on block copolymers Part I; Amination of the chloromethylated copolymers", J. Membr. Sci., 140, 195 (1998). https://doi.org/10.1016/S0376-7388(97)00283-4
  2. S.-W. Cheon, J.-H. Jun, J.-W. Rhim, and S.-Y. Nam, "Studies on the preparation of the poly(vinyl alcohol) ion exchange membranes for direct methanol fuel cell", Membrane Journal, 13, 192 (2003).
  3. C.-J. Park, I.-H. Kim, S.-P. Kim, H.-M. Lee, S.-I. Cheong, H.-S. Choi, and J.-W. Rhim, "Preparation of poly (ethyleni- mine) anionic exchange membrane impregnated in porous polyethylene membranes", Membrane Journal, 21, 91 (2011).
  4. I.-Y. Jang, O.-H. Kweon, K.-E. Kim, G.-J. Hwang, S.-B. Moon, and A.-S. Kang, "Application of polysulfone (PSf)- and polyether ether ketone (PEEK)- tungstophosphoric acid (TPA) composite membranes for water electrolysis", J. Membr. Sci., 322, 154 (2008). https://doi.org/10.1016/j.memsci.2008.05.028
  5. G.-J. Hwang, H. Ohya, and T. Nagai, "Ion exchange membrane based on block copolymer PartIII. preparation of cation exchange membrane", J. Membr. Sci., 156, 61 (1999). https://doi.org/10.1016/S0376-7388(98)00331-7
  6. J.-G. Kim, S.-H. Lee, S.-I Choi, C.-S. Jin, J.-C. Kim, C.-H Ryu, and G.-J. Hwang, "Application of Psf-PPSS-TPA composite membrane in the all-vanadium redox flow battery", J. Ind. Eng. Chem., 16, 756 (2010). https://doi.org/10.1016/j.jiec.2010.07.007
  7. H.-S. Cheon, M. Oh, and S.-U. Hong, "Preparation and their characterization of blended polymer electrolyte membranes of polysulfone/SPEEK", Membrane Journal, 13, 47 (2003).
  8. D.-J. Kim, H.-Y. Hwang, H.-J. Kim, and S.-Y. Nam, "Preparation and characterization of polysulfone substrate for reinforced composite membrane fuel cell membrane", Membrane Journal, 19, 63 (2009).
  9. S. C. Kumbharkar, Y. Liu, and K. Li, "High performance polybenzimidazole based asymmetric hollow fibre membranes for $H_2/CO_2$separation", J. Membr. Sci., 375, 231 (2011). https://doi.org/10.1016/j.memsci.2011.03.049
  10. Y. Wang, M. Gruender, and T. S. Chung, "Pervaporation dehydration of ethylene glycol through polybenzimidazole (PBI)-based membranes. 1. Membrane fabrication", J. Membr. Sci., 363, 149 (2010). https://doi.org/10.1016/j.memsci.2010.07.024
  11. K. Y. Wang, T. S. Chung, and J. J. Qin, "Polybenzimidazole (PBI) nanofiltration hollow fiber membranes applied in forward osmosis process", J. Membr. Sci., 300, 6 (2007). https://doi.org/10.1016/j.memsci.2007.05.035
  12. Suryani and Y. Liu, "Preparation and properties of nanocomposite membranes of polybenzimidazole/ sulfonated silica nanoparticles for proton exchange membranes", J. Membr. Sci., 332, 121 (2009). https://doi.org/10.1016/j.memsci.2009.01.045
  13. D.-H. Lee, S.-J. Kim, S.-Y. Nam, and H.-J. Kim, "Synthesis and ion conducting properties of anion exchange membranes based on PBI copolymers for alkaline fuel cells", Membrane Journal, 20, 217 (2010).
  14. H. Bai and W. S. Ho, "New sulfonated polybenzimidazole (SPBI) copolymer-based proton-exchange membranes for fuel cells", J. Taiwan Inst. Chem. Eng., 40, 260 (2009). https://doi.org/10.1016/j.jtice.2008.12.014
  15. S.-H. Lee, J.-G. Kim, S.-I. Choi, G.-J. Hwang, and C.-S. Jin, "Study on a separator for the all-vanadium redox flow battery", Membrane Journal, 19, 129 (2009).
  16. Q. Li, J. Jensen, R. F. Savinell, and N. J. Bjerrum, "High temperature proton exchange membranes based on polybenzimidazoles for fuel cells", Prog. Polym. Sci., 34, 449 (2009). https://doi.org/10.1016/j.progpolymsci.2008.12.003
  17. R. He, Q. Li, A. Bach, J. O. Jensen, and N. J. Bjerrum, "Physicochemical properties of phosphoric acid doped polybenzimidazole membranes for fuel cells", J. Membr. Sci., 277, 38 (2006). https://doi.org/10.1016/j.memsci.2005.10.005