发明名称 |
METHOD FOR PRODUCING A MEMBRANE MADE OF BRIDGED POLYMER AND A FUEL CELL |
摘要 |
The invention relates to a membrane made of a bridged polymer produced by a method comprising the following steps: a) production of a solution comprising an alkaline polymer that contains at least one amino acid in a repeat unit and at least one bridging reagent in a suitable solvent, b) pouring of a film using the solution obtained in step a), c) accomplishment of the bridging reaction in the film obtained according to step c), d) doping of the film obtained according to step d) with a strong acid. The method is characterised in that in step a) an alkaline catalyst is also added. The inventive membrane displays visibly improved fracture toughness (elongation at rupture/tension) with near unaltered swelling behaviour. The inventive membranes are suitable for producing membrane-electrode-units for fuel cells. |
申请公布号 |
WO02070592(A3) |
申请公布日期 |
2002.12.27 |
申请号 |
WO2002EP02215 |
申请日期 |
2002.03.01 |
申请人 |
CELANESE VENTURES GMBH;UENSAL, OEMER;KIEFER, JOACHIM |
发明人 |
UENSAL, OEMER;KIEFER, JOACHIM |
分类号 |
H01M8/02;C08J5/22;H01M8/10;H01M8/12 |
主分类号 |
H01M8/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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