The Effect of Annealing on sSEBS/Polyrotaxanes Electrolyte Membranes for Direct Methanol Fuel Cells

다국어 초록 (Multilingual Abstract)

Solution casting films of sulfonated poly[styrene-b-(ethylene-r-butylene)-b-styrene] copolymer (sSEBS)-
based composite membranes that contained different amounts of organic, nanorod-shaped polyrotaxane were
annealed at various temperatures for 1 h. The films’ properties were characterized with respect to their use as polymer
electrolyte membranes in direct methanol fuel cells (DMFCs). Different aspect ratios of polyrotaxane were prepared
using the inclusion-complex reaction between α-cyclodextrin and poly(ethylene glycol). The presence of the
organic polyrotaxane inside the membrane changed the morphology during the membrane preparation and reduced
the transport of methanol. The conductivity and methanol permeability of the composite membranes decreased with
increasing polyrotaxane content, while the annealing temperature increased. All of the sSEBS-based, polyrotaxane
composite membranes annealed at 140 oC showed a higher selectivity parameter, suggesting their potential usage
for DMFCs.

참고문헌 (Reference)

1 C. H. Lee, 303 : 258 -, 2007

2 K. Yano, 35 : 2289 -, 1997

3 V. Tricoli, 147 : 1286 -, 2000

4 D. E. Curtin, 131 : 41 -, 2004

5 D. H. Jung, 26 : 1263 -, 2001

6 W. Lee, 320 : 78 -, 2008

7 X. Lu, 26 : 6525 -, 1993

8 G. E. Wnek, Electrochemical Society 247-, 1995

9 A. Harada, 26 : 5690 -, 1993

10 M. A. Vargas, 44 : 4227 -, 1999

11 R. I. Blackwell, 45 : 3457 -, 2004

12 H. D. Cho, 33 : 248 -, 2008

13 D. Kim, 6 : 1069 -, 2004

14 V. Baglio, 50 : 1241 -, 2005

15 I. Honma, 162 : 237 -, 2003

16 J. Won, 79 -, 2003

17 M.-K. Song, 50 : 639 -, 2004

18 D. W. Kim, 50 : 659 -, 2004

19 J. Won, 214 : 245 -, 2003

20 Y. F. Lin, 168 : 162 -, 2007

21 I. Honma, 118 : 29 -, 1999

22 S. P. Nunes, 203 : 215 -, 2002

23 A. Harada, 23 : 2821 -, 1990

24 김성철, "Transport Properties of Polymer Blend Membranes of Sulfonated and Nonsulfonated Polysulfones for Direct Methanol Fuel Cell Application" 한국고분자학회 16 (16): 457-466, 2008

25 원종옥, "Sulfonated Dextran/Poly(vinyl alcohol) Polymer Electrolyte Membranes for Direct Methanol Fuel Cells" 한국고분자학회 15 (15): 459-464, 2007

26 임지원, "Self-Assembly Modification of Perfluorosulfonic Acid Membranes for the Application to Direct Methanol Fuel Cells" 한국고분자학회 16 (16): 524-531, 2008

27 Shingjiang Jessie Lue, "Plasma modification on a Nafion membrane for direct methanol fuel cell applications" 한국화학공학회 23 (23): 441-446, 2006

28 Hyun Dong Cho, "Nafion Composite Membranes Containing Rod-Shaped Polyrotaxanes for Direct Methanol Fuel Cells" 한국고분자학회 14 (14): 214-219, 2006

29 Dae Sik Kim, "Influence of Silica Content in Crosslinked PVA/PSSA_MA/Silica Hybrid Membrane for Direct Methanol Fuel Cell (DMFC)" 한국고분자학회 15 (15): 412-417, 2007

30 Jin Hwa Lee, "Effects of Polyamidoamine Dendrimers on the Catalytic Layers of a Membrane Electrode Assembly in Fuel Cells" 한국고분자학회 14 (14): 101-106, 2006