发明名称 |
Multiblock copolymer, method of preparing the same, polymer electrolyte membrane prepared from the multiblock copolymer, method of preparing the polymer electrolyte membrane, and fuel cell employing the polymer electrolyte membrane |
摘要 |
A multiblock copolymer includes a polysulfone repeating unit of formula (1) below; a sulfonated polysulfone repeating unit of formula (2) below; and an ethylenic unsaturated group at a terminal of the multiblock copolymer: where l and m are integers of 1-200; each of R<SUB>1 </SUB>through R<SUB>4 </SUB>is independently hydrogen, fluorine, or a C<SUB>1</SUB>-C<SUB>10 </SUB>alkyl group that is unsubstituted or substituted by at least one fluorine atom; and X represents a tetraalkylamine cation. Provided are a method of preparing the multiblock copolymer, a polymer electrolyte membrane prepared from the multiblock copolymer, a method of preparing the polymer electrolyte membrane, and a fuel cell including the polymer electrolyte membrane. The polymer electrolyte membrane that has a high ionic conductivity and good mechanical properties and minimizes crossover of methanol can be manufactured at a low cost. In addition, the structure of the multiblock copolymer can be varied to increase selectivity to a solvent used in a polymer electrolyte membrane.
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申请公布号 |
US2007196712(A1) |
申请公布日期 |
2007.08.23 |
申请号 |
US20060443169 |
申请日期 |
2006.05.31 |
申请人 |
SAMSUNG SDI CO., LTD. |
发明人 |
KIM HAE-KYOUNG;LEE WON-MOK;JUNG JIN-CHUL;CHANG HYUK;PARK SAM-DAE;CHANG YOON-JU |
分类号 |
H01M8/10;C08G75/23;C08J5/20 |
主分类号 |
H01M8/10 |
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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