POLYMER ELECTROLYTES AND PROCESS FOR THEIR PRODUCTION
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United States of America Patent
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Issued Date -
Aug 1, 2002
app pub date -
Sep 18, 1997
filing date -
Mar 20, 1995
priority date (Note) -
Abandoned
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Abstract
Polymer electrolytes and process for their preparation A sulfonated aromatic polyether ketone of the formula (II) [Ar--O--Ar'--CO--Ar'--O--Ar--CO--Ar'--CO--] (II) in which from 1% to 100% of the O-phenylene-CO units are substituted with an SO.sub.3M group and sulfonated and unsulfonated O-phenylene-CO units can be in any desired sequence with respect to one another, the radicals Ar, Ar' and Ar' independently of one another are substituted or unsubstituted 1,2-, 1,3- or 1,4-phenylene rings, and M, taking into account the ionic valencies, comprises one or more elements selected from the following group: H, NR.sub.4.sup.+, where R is H or C.sub.1-C.sub.4-alkyl, or an alkali metal or alkaline earth metal or a metal from subgroup 8, and is preferably H, NR.sub.4.sup.+, Li, Na, K, Ca, Mg, Fe or Pt.
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