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Synthesis of polyphosphazenes with sulfonimide side groups

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
The invention relates to sulfonimide bearing phenolic compounds and the use of those compounds to produce polyphosphazenes functionalized by one or more of those compounds alone, or in combination with cosubstituents. The invention also relates to blends of sulfonimide functionalized phosphazene polymers with other polymers, membranes formed of the functionalized polymers, and the use of those membranes in devices such as fuel cells.
Allcock, Harry R. (State College, PA), Hofmann, Michael A. (Brookhaven, PA), Ambler, Catherine M. (State College, PA), Maher, Andrew E. (Little Britian, CA), Wood, Richard M. (State College, PA), Welna, Daniel T. (State College, PA)
The Penn State Research Foundation (University Park PA)
10/ 779,483
February 13, 2004
[0002] This work was supported by U.S. Department of Energy, grant number DE-FC36-01GO11085.