Preparation of Sulfonated Poly（arylene ether sulfone）Membrane and The Performance for Proton Exchange Membrane Fuel Cell
碩士 === 國立臺灣大學 === 高分子科學與工程學研究所 === 99 === In this studies,novel monomers containing two phenyl groups has been synthesized by bromination of bis（4-fluorophenyl） sulfone, via Suzuki coupling with benzeneboronic acid. The resulting monomers were converted to the corresponding sulfonated monomers havin...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2011
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| Online Access: | http://ndltd.ncl.edu.tw/handle/46784282433793118107 |
| Summary: | 碩士 === 國立臺灣大學 === 高分子科學與工程學研究所 === 99 === In this studies,novel monomers containing two phenyl groups has been synthesized by bromination of bis（4-fluorophenyl） sulfone, via Suzuki coupling with benzeneboronic acid. The resulting monomers were converted to the corresponding sulfonated monomers having two pendent sulfonic acid groups.
Aromatic nucleophilic substitution （SNAr） polycondensation using the disulfonated monomers provided sulfonated poly（arylene ether sulfone） polymers P1 and P2.
Flexible and tough membranes having high mechanical strength were obtained by solution casting of all two series of polymers.
The polymers with two pendent sulfonic acid groups had high proton conductivities in the range of 57-183 mS/cm for P2-xx at 70°C, respectively. The methanol permeabilities of these polymers were in the range of （0.35-1.368 cm2/s）, which is lower than Nafion （1.45 cm2/s）.
In proton exchange membrane fuel cell test, P2-70 membranes showed the good cell performance. This study suggests that the P2 membranes also have high potential for direct methanol fuel cell application.
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