发明授权
- 专利标题： Proton exchange membranes for fuel cell applications
- 专利标题（中）： 用于燃料电池应用的质子交换膜
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申请号： US12197530申请日： 2008-08-25
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公开(公告)号： US07897691B2公开(公告)日： 2011-03-01
- 发明人: Sean M MacKinnon , Timothy J. Fuller , Frank Coms , Michael R. Schoeneweiss
- 申请人： Sean M MacKinnon , Timothy J. Fuller , Frank Coms , Michael R. Schoeneweiss
- 申请人地址： US MI Detroit
- 专利权人： GM Global Technology Operations, Inc.
- 当前专利权人： GM Global Technology Operations, Inc.
- 当前专利权人地址： US MI Detroit
- 代理机构： Brooks Kushman P.C.
- 主分类号： C08F214/14
- IPC分类号： C08F214/14
摘要：
A proton conductive graft polymer comprises at least a structure unit of a sulfonated polymer side chain covalently attached to a hydrophobic perfluorocyclobutane polymer main chain. The sulfonated condensation polymer side chain has a high local ion exchange capacity while the main polymer chain is substantially free of sulfonic acid group. A membrane made from the graft polymer can provide good mechanical properties and high proton conductivity at wide range of humidity and temperatures.