Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Baijun Liu0
Gilles P. Robertson0
Michael D. Guiver0
Date of Patent
May 24, 2011
0Patent Application Number
123093590
Date Filed
July 13, 2007
0Patent Primary Examiner
Patent abstract
A sulfonated poly(aryl ether) (SPAE) having a poly(aryl ether) (PAE) main chain and a sulfonated phenyl group pendent from the main chain are useful in proton exchange membranes (PEMs), particularly for fuel cells. The pendent phenyl group can provide an easily sulfonable site that may be sulfonated under mild conditions, providing the ability to precisely control the sulfonic acid content of the SPAE.
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