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Priority claimed from US10/988,187external-prioritypatent/US7507771B2/en
Priority claimed from US10/987,951external-prioritypatent/US7572535B2/en
Application filed by Polyfuel IncfiledCriticalPolyfuel Inc
Publication of TW200615309ApublicationCriticalpatent/TW200615309A/en
In one aspect, the invention provides ion conductive copolymers comprising (1) a plurality of first oligomers, (2) a plurality of second oligomers, (3) ion conductive monomers and (4) linking monomers. The oligomers preferably are hydrophobic and together with the ion conductive monomers are randomly dispersed between the linking monomers. Uses of such polymeric materials include the formation of polymer electrolyte membranes (PEMs), catalyst coated membranes (CCM's) and membrane electrolyte assemblies (MEA's) which may be used in fuel cells and the like.
TW094109497A2004-11-122005-03-25Ion conductive copolymers containing one or more hydrophobic oligomers
TW200615309A
(en)
Membrane for fuel cells, containing polymers comprising phosphonic acid groups and/or sulfonic acid groups, membrane electrode units and the use thereof in fuel cells