Sulfonated polymers useful for forming fuel cell membranes
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United States of America Patent
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Nov 10, 2015
Grant Date -
Aug 1, 2013
app pub date -
Sep 21, 2011
filing date -
Sep 23, 2010
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Abstract
The invention relates to a polymer comprising at least one polymeric chain of a first type, the said chain comprising at least two blocks, the same or different, the said blocks comprising repeat units derived from the polymerisation of styrene monomers, the said units comprising at least one phenyl pendant group carrying at least one —SO3R group, R possibly being a hydrogen atom, an alkyl group or cationic counter-ion, the said two blocks being separated by a spacer group, the spacer group is a perfluorocarbon group.
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