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Poly(phenylene)-based anion exchange membrane

United States Patent

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7,888,397
February 15, 2011
View the Complete Patent at the US Patent & Trademark Office
Poly(phenylene)-based Anion Exchange Membranes Next-Generation Automotive
A poly(phenylene) compound of copolymers that can be prepared with either random or multiblock structures where a first polymer has a repeat unit with a structure of four sequentially connected phenyl rings with a total of 2 pendant phenyl groups and 4 pendant tolyl groups and the second polymer has a repeat unit with a structure of four sequentially connected phenyl rings with a total of 6 pendant phenyl groups. The second polymer has chemical groups attached to some of the pendant phenyl groups selected from CH.sub.3, CH.sub.2Br, and CH.sub.2N(CH.sub.3).sub.3Br groups. When at least one group is CH.sub.2N(CH.sub.3).sub.3Br, the material functions as an anion exchange membrane.
Hibbs; Michael (Albuquerque, NM)Cornelius; Christopher J. (Albuquerque, NM)Fujimoto; Cy H. (Albuquerque, NM)
Sandia Corporation (Albuquerque, NM)
12/ 112,012
April 30, 2008
521/27 528/397528/96
C08J 5/22 (20060101)C08G 61/02 (20060101)C08G 61/00 (20060101)
521/27528/86,397
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT The Government has rights to this invention pursuant to Contract No. DE-AC04-94AL85000 awarded by the U.S. Department of Energy.