전자선을 이용해 가교된 SPEEK 기본 물질로 하는이온 교환막의 특성 분석
The Characterization of Crosslinked SPEEK Based Ion Exchange Membranes Prepared by EB Irradiation Method
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Crosslinked SPEEK/PVDF membrane were prepared by EB radiation method withvarious contents of PVDF. The prepared membranes were subjected to a comparative study ofproton exchange membranes for fuel cell appreciations. The crosslinked SPEEK/PVDF membraneswere characterized by using DMA, DSC and SAXS. The DMA data indicate that the ionic modulusvalues and cluster Tg decrease with increasing PVDF content. Thus, it was suggested that thenumber of clustering in the crosslinked membranes can be reduced with increasing PVDF content. The DSC results were shown that the degree of crystalline of the membrane increased withincreasing PVDF content. The morphology of the crosslinkied membranes was shown that withincreasing PVDF content, the number of crystalline domain of the SPEEK/PVDF membranesincreased but ionic aggregation of the membranes decreased. The water uptake behavior, ionicexchange capacity (IEC) and proton conductivity were decreased with increasing PVDF content. The overall findings suggest that the crosslinked membranes offer the possibility for improvingthe performance of PEMFC, provided that the membranes have thermal and hydration stability.
Abstract
Crosslinked SPEEK/PVDF membrane were prepared by EB radiation method withvarious contents of PVDF. The prepared membranes were subjected to a comparative study ofproton exchange membranes for fuel cell appreciations. The crosslinked SPEEK/PVDF membraneswere characterized by using DMA, DSC and SAXS. The DMA data indicate that the ionic modulusvalues and cluster Tg decrease with increasing PVDF content. Thus, it was suggested that thenumber of clustering in the crosslinked membranes can be reduced with increasing PVDF content. The DSC results were shown that the degree of crystalline of the membrane increased withincreasing PVDF content. The morphology of the crosslinkied membranes was shown that withincreasing PVDF content, the number of crystalline domain of the SPEEK/PVDF membranesincreased but ionic aggregation of the membranes decreased. The water uptake behavior, ionicexchange capacity (IEC) and proton conductivity were decreased with increasing PVDF content. The overall findings suggest that the crosslinked membranes offer the possibility for improvingthe performance of PEMFC, provided that the membranes have thermal and hydration stability.
참고문헌 (16)
- Chen J, "Doble crosslinked polyether ether ketone-based polymer electrolyte membranes prepared by radiation and thermal crosslinking", Polymer, 48, pp.6002~6009 (2007)
- Eisenberg A, "A New Multiplet-Cluster Model for the Mrophology of Random Ionomer", Macromolecules, 23, pp.4098~4107 (1998)
- Gebel G, "Structured evolution of water swollen perfluorosulfonated Ionomer from dry membrane to solution", Polymer, 41, pp.5829~5838 (2000)
- Grot WG, "Perflourinated ion exchange polymers and their use in research and industry", Macromo. Symp, 82, pp.161~172 (1994)
- Hasegawa S, "Preparation of poly(ether ether ketone)-based polymer electrolytes for fuel cell membranes using grafting technique", Radiation Physics & Chemistry, 77, pp.617~621 (2008)
- Jung HY, "Long-term performance of DMFC based on the blend membrane of sulfonated poly(ether ether ketone)and poly(vinylidene fluoride)", International Journal of Hydrogen Energy, 34, pp.3915~3921 (2009)
- Kreuer D, "On the development of proton conducting polymer membranes for hydrogen and methanol fuel cells", J. Membr. Sci, 185, pp.29~35 (2001)
- Lee CH, "Water sorption, proton conduction, and methnaol permeation properties of sulonated polyimide membranes cross-linked with N, N-Bis(2-hydroxyethyl)2-aminoethane sulfonic acid(BES)", Macromolecules, 39, pp.755~764 (2006)
- Mauritz KA, "Satae of Understanding of Nafion", Chem. Rev, 104, pp.4535~4585 (2004)
- Mihhailenko SD, "Proton conducting membranes based on cross-linked sulfated poly(ether ether ketone)(SPEEK)", J. Membr. Sci, 233, pp.93~99 (2004)
- Motupally S, "Diffusion of water in Nafion 115 Membrane", J. Electrochem. Soc, 147, pp.3171~3177 (2003)
- Rikukawa M, "Proton-conducting polymer electrolyte membranes based on hydrocarbon polymers", Prog. Polym. Sci, 25, pp.1463~1502 (2000)
- Souzy R, "Functional fluoropolymers for fuel cell membranes", Prog. Polym. Sci, 25, pp.644~687 (2005)
- Xue S, "Methanol permeability in sulfonated poly(etheretherketone)membranes A comparison with Nafion membranes", Eur. Polym. J, 42, pp.776~785 (2006)
- Ye YS, "Sulfonated poly(ether ether ketone)membranes crosslinked with sulfonic acid containing benzoxazine monomer as proton exchange membranes", Polymer, 50, pp.3196~3203 (2009)
- Zhang H, "Composite membranes based on highly sulfonated PEEK and PBI : Morphology characteristics and performance", J. Membr. Sci, 308, pp.66~74 (2008)