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Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received April 11, 2007
Accepted January 27, 2008

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Electrochemical characterization of phosphonic acid cation exchange membrane prepared by plasma-induced graft polymerization

Eun-Young Choi Seung-Hyeon Moon^†

Department of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST), 1 Oryong-dong, Buk-gu, Gwangju 500-712, Korea

shmoon@gist.ac.kr

Korean Journal of Chemical Engineering, September 2008, 25(5), 1151-1153(3), 10.1007/s11814-008-0189-9

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Abstract

The phosphonic acid cation exchange membrane (CEM) was prepared by plasma-induced grafting of phosphonated glycidyl methacrylate, and its properties were compared with those of sulfonated acid CEM. Although ion exchange capacity and water content of the phosphonic and sulfonic acid CEMs are almost same, the electrical resistance of the phosphonic acid CEM was higher and the transport number was slightly lower compared to the sulfonic acid CEM due to weakly acidic fixed ionic charges. However, those properties of the phosphonic acid CEM were comparable with those of the membranes reported in literature. Current-voltage curves of the membranes showed that the strong fixed charge of sulfonic acid CEM induced more electroconvection of electrolyte near the surface over the limiting current density than phosphonic acid CEM with weaker fixed charge.

Keywords

Cation Exchange Membrane Phosphonic Acid Sulfonic Acid Plasma-induced Graft Polymerization Current- voltage Relation

References

Strathmann H, Ion-exchange membrane separation processes, Elsevier (2004)
Sata T, Yoshida T, Matsusaki K, J. Membr. Sci., 120(1), 101 (1996)
Sata T, Sata T, Yang WK, J. Membr. Sci., 206(1-2), 31 (2002)
Trochimczuk WA, Eur. Polym. J., 35, 1457 (1999)
Lee KP, Choi SH, Kang HD, J. Chromatogr. A, 948, 128 (2002)
Yamaguchi T, Nakao S, Kimura S, Macromolecules, 24, 5522 (1991)
Yamaguchi T, Nakao SI, Kimura S, J. Polym. Sci. A: Polym. Chem., 34(7), 1203 (1996)
Yokoyama Y, Tanioka T, Miyasaka K, J. Membr. Sci., 43, 165 (1989)
Tanioka A, Yokoyama Y, Higa M, Miyasaka K, Colloids Surf. B: Biointerfaces, 9, 1 (1997)
Bae B, Kim D, J. Membr. Sci., 220(1-2), 75 (2003)
Choi EY, Strathmann H, Park JM, Moon SH, J. Membr. Sci., 268, 168 (2005)
Kang MS, Choi YJ, Choi IJ, Yoon TH, Moon SH, J. Membr. Sci., 216(1-2), 39 (2003)
Barragan VM, Ruiz-Bauza C, J. Colloid Interface Sci., 205(2), 365 (1998)
Rubinstein I, Phys. Fluids, 3, 2301 (1991)
Choi JH, Lee HJ, Moon SH, J. Colloid Interface Sci., 238(1), 188 (2001)
Rubinstein I, Shtilman L, J. Chem. Soc.-Faraday Trans., 75, 231 (1979)
Rubinstein I, J. Chem. Soc.-Faraday Trans., 77, 1595 (1981)
Rubinstein I, Staude E, Kedem O, Desalination, 69, 101 (1988)