Ion-conducting polymers and membranes comprising them

Details Ion-conducting polymers and membranes comprising them Ion-conducting polymers and membranes comprising them

2005-01-12

2010-06-15

Kopec, Mark (Department: 1796)

Compositions

Electrically conductive or emissive compositions

C525S471000, C528S175000, C528S220000, C528S391000

Reexamination Certificate

active

07736539

ABSTRACT:
An ion-conducting polymer wherein at least 80% of the repeat units comprise an ion-conducting region and a spacer region is disclosed. The ion-conducting region has an aromatic backbone of one or more aromatic groups, wherein at least one ion-conducting functional group is attached to each aromatic group. The spacer region has an aromatic backbone of at least four aromatic groups, wherein no ion-conducting functional groups are attached to the aromatic backbone. The polymer is suitable for use as a fuel cell membrane, and can be incorporated into membrane electrode assemblies.

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