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Author

Lee, Sang-Young
Energy Soft-Materials Lab (ESML)
Research Interests
  • Soft Materials for Energy Storage/ Conversion Systems

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Synthesis and Characterization of Sulfonated Poly(arylene ether sulfone) Ionomers Incorporating Perfluorohexylene Units for DMFC Membranes

Cited 16 times inthomson ciCited 14 times inthomson ci
Title
Synthesis and Characterization of Sulfonated Poly(arylene ether sulfone) Ionomers Incorporating Perfluorohexylene Units for DMFC Membranes
Author
Yoon, Su-JinChoi, Jong-HoHong, Young TaikLee, Sang-Young
Keywords
DMFC membranes; electrochemistry; fluoropolymers; ionomers; poly(arylene ether sulfone)
Issue Date
201004
Publisher
POLYMER SOC KOREA
Citation
MACROMOLECULAR RESEARCH, v.18, no.4, pp.352 - 357
Abstract
A new, sulfonated poly(arylene ether sulfone) ionomer with partially fluorinated groups (F-SPAES) was synthesized by the direct polymerization of 1,6-bis(4-fluororphenyl)-perfluorohexane (FPPFH) and 6F-bisphenol A (6F-BPA) with 3,3′-disulfonated 4,4′-difluorodiphenyl sulfone (SDFDPS). The effect of fluorination on the membrane properties and membrane-electrode assembly (MEA) performance for DMFC applications were investigated comprehensively and compared with the pristine SPAES sample. Deliberate control of the hydrophobicity as well as the degree of sulfonation in the F-SPAES membranes allows the effective suppression of water uptake and methanol permeability, while barely affecting the proton conductivity and IEC value. Such an improvement in the membrane properties contributes to the superior single cell performance of the F-SPAES compared to pristine SPAES and Nafion�.
URI
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DOI
http://dx.doi.org/10.1007/s13233-010-0406-3
ISSN
1598-5032
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