FLUORINATED COPOLYMER HAVING SULFONYL PENDANT GROUPS AND METHOD OF MAKING AN IONOMER

The copolymer includes divalent units represented by formula: (I), one or more independently selected fluorinated divalent units, and -SO2X end groups. In this formula, b is 2 to 8, c is 0 to 2, and e is 1 to 8. In each SO2X, X is independently F, -NZH, -NZSO2(CF2)1-6SO2X', -NZ[SO2(CF2)aSO2NZ]1...

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Bibliographische Detailangaben
Hauptverfasser:	LOCHHAAS, Kai H, DUCHESNE, Denis, DAHLKE, Gregg D, THALER, Arne, ZIPPLIES, Tilman C, HINTZER, Klaus
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVES BASIC ELECTRIC ELEMENTS CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON CORRECTING FLUIDS DYES ELECTRICITY FILLING PASTES INKS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	The copolymer includes divalent units represented by formula: (I), one or more independently selected fluorinated divalent units, and -SO2X end groups. In this formula, b is 2 to 8, c is 0 to 2, and e is 1 to 8. In each SO2X, X is independently F, -NZH, -NZSO2(CF2)1-6SO2X', -NZ[SO2(CF2)aSO2NZ]1-10SO2X', or -OZ, wherein Z is a hydrogen, an alkali-metal cation or a quaternary ammonium cation, X' is independently -NZH or -OZ, and each a is independently 1 to 6. The copolymer has an -SO2X equivalent weight of up to 1000. The method includes copolymerizing components including fluorinated olefin and a compound represented by formula CF2=CF-CF2(O-CbF2b)c-O-(CeF2e)-SO2X', wherein b, c, and e are as defined above. A method of making a membrane using the copolymer or ionomer is also provided. A polymer electrolyte membrane that includes the copolymer or the ionomer and a membrane electrode assembly that includes such a polymer electrolyte membrane are also provided.