Polyelectrolyte membranes made of...

Details Polyelectrolyte membranes made of... Polyelectrolyte membranes made of...

2009-08-26

2011-11-08

Lipman, Bernard (Department: 1762)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C526S250000, C526S252000, C526S253000, C526S254000

Reexamination Certificate

active

08053530

ABSTRACT:
A polymer useful as an ion conductor in fuel cells includes a perfluorocyclobutyl moiety and pendant PFSA side groups. The polymer is made by a variation of the Ullmann reaction. Ion conducting membranes incorporating the polymer are provided.

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