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dc.date.accessioned2016-08-24T17:55:11Zen
dc.date.available2016-08-24T17:55:11Zen
dc.date.issued2013-02-26en
dc.identifier.urihttp://hdl.handle.net/10919/72692en
dc.description.abstractSulfonated polymers are made by the direct polymerization of a sulfonated monomer to form the sulfonated polymers. The types of sulfonated polymers may include polysulfones or polyimides. The sulfonated polymers can be formed into membranes that may be used in proton exchange membrane fuel cells or as ion exchange membranes. The membranes formed from the sulfonated polymers exhibit improved properties over that of Nafion®. A heteropoly acid may be added to the sulfonated polymer to form a nanocomposite membrane in which the heteropoly acid is highly dispersed. The addition of a heteropoly acid to the sulfonated polymer increases the thermal stability of the membrane, enhances the conductivity above 100° C., and reduces the water uptake of the membrane.en
dc.format.mimetypeapplication/pdfen
dc.language.isoen_USen
dc.publisherUnited States Patent and Trademark Officeen
dc.titleION-conducting sulfonated polymeric materialsen
dc.typePatenten
dc.identifier.urlhttp://pimg-fpiw.uspto.gov/fdd/63/837/083/0.pdfen
dc.date.accessed2016-08-19en
dc.type.dcmitypeTexten
dc.contributor.assigneeVirginia Tech Intellectual Properties, Inc.en
dc.contributor.inventorMcGrath, James E.en
dc.contributor.inventorWang, Fengen
dc.contributor.inventorKim, Yu-Seungen
dc.contributor.inventorHickner, Michael A.en
dc.date.filed2010-07-29en
dc.identifier.applicationnumber12845874en
dc.subject.uspc521/27en
dc.subject.uspcother528/391en
dc.subject.uspcother528/170en
dc.subject.uspcother528/321en
dc.subject.uspcother528/363en
dc.subject.uspcother528/364en
dc.subject.cpcB01D71/82en
dc.subject.cpcB01D69/141en
dc.subject.cpcB01D71/64en
dc.subject.cpcB01D71/68en
dc.subject.cpcC08G73/10en
dc.subject.cpcC08G75/23en
dc.type.patenttypeutilityen
dc.identifier.patentnumber8383763en


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