Macromolecular Research, Vol.15, No.6, 581-586, October, 2007
Characterization of DNA/Poly(ethylene imine) Electrolyte Membranes
E-mail:
Cast DNA/polyethyleneimine (PEI) blend membranes containing different amounts of DNA were prepared using acid-base interaction and characterized with the aim of understanding the polymer electrolyte membrane properties. Two different molecular weights of PEI were used to provide the mechanical strength, while DNA, a polyelectrolyte, was used for the proton transport channel. Proton conductivity was observed for the DNA/PEI membrane and reached approximately 3.0 × 10-3 S/cm for a DNA loading of 16 wt% at 80 ℃. The proton transport phenomena of the DNA/PEI complexes were investigated in terms of the complexation energy using the density functional theory method. In the case of DNA/PEI, a cisoid-type complex was more favorable for both the formation of the complex and the dissociation of hydrogen from the phosphate. Since the main requirement for proton transport in the polymer matrix is to dissociate the hydrogen from its ionic sites, this suggests the significant role played by the basicity of the matrix.
- Kreuer KD, Paddison SJ, Spohr E, Schuster M, Chem. Rev., 104(10), 4637 (2004)
- Cho HD, Won JO, Ha HY, Kang YS, Macromol. Res., 14(2), 214 (2006)
- Li J, Lee CH, Park HB, Lee YM, Macromol. Res., 14(4), 438 (2006)
- Kreuer KD, J. Membr. Sci., 185(1), 29 (2001)
- Kreuer KD, Solid State Ion., 136-137, 149 (2000)
- Won J, Park HH, Kim YJ, Choi SW, Ha HY, Oh IH, Kim HS, Kang YS, Ihn KJ, Macromolecules, 36(9), 3228 (2003)
- Eikerling M, Paddison SJ, Pratt LR, Zawodzinski TA, Chem. Phys. Lett., 368, 108 (2003)
- Paddison SJ, Annu. Rev. Mater. Res., 33, 289 (2003)
- Paddison SJ, Paul R, Zawodzinski TA, J. Electrochem. Soc., 147(2), 617 (2000)
- Paddison SJ, Paul R, Zawodzinski TA, J. Chem. Phys., 115(16), 7753 (2001)
- Paddison SJ, Paul R, Kreuer KD, Phys. Chem. Chem. Phys., 4, 1151 (2002)
- Paddison SJ, Elliott JA, J. Phys. Chem. A, 109(33), 7583 (2005)
- Won J, Chae SK, Kim JH, Park HH, Kang YS, Kim HS, J. Membr. Sci., 249(1-2), 113 (2005)
- Ohno H, Takizawa N, Chem. Lett., 642 (2000)
- Kang MS, Kim JH, Won J, Moon SH, Kang YS, J. Membr. Sci., 247(1-2), 127 (2005)
- Vargas MA, Vargas RA, Mellander BE, Electrochim. Acta, 44(24), 4227 (1999)
- Hehre WJ, Radom L, Schleyer PVR, Pople JA, Ab initio Molecular Orbital Theory, Wiley-Interscience, New Yorks (1985)
- Becke AD, Chem. Phys., 98, 5648 (1993)
- Hey PJ, Wadt WR, J. Chem. Phys., 82, 270 (1985)
- Wadt WR, Hay PJ, J. Chem. Phys., 82, 284 (1985)
- Hay PJ, Wadt WR, J. Chem. Phys., 82, 299 (1985)
- Pople JA, Krishnan R, Schlegel HB, Binkley JS, Quantum Chem., 13, 225 (1979)
- Pople JA, Schlegel HB, Krishnan R, Defrees DJ, Binkley JS, Frisch MJ, Whiteside RA, Hout RF, Hehre WJ, Quantum Chem., 15, 269 (1981)
- Zhou YL, Li YZ, Spectroc. Acta Pt. A-Molec. Biomolec. Spectr., 60, 377 (2004)
- Cai Y, Wang D, Hu X, Xu Y, Zhao Y, Wu J, Xu D, Macromol. Chem. Phys., 202, 2434 (2001)