发明授权
US07563532B2 Trifluorostyrene containing compounds, and their use in polymer electrolyte membranes
失效
含三氟苯乙烯的化合物，以及它们在聚合物电解质膜中的应用
- 专利标题： Trifluorostyrene containing compounds, and their use in polymer electrolyte membranes
- 专利标题（中）： 含三氟苯乙烯的化合物，以及它们在聚合物电解质膜中的应用
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申请号： US10570024申请日： 2004-06-25
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公开(公告)号： US07563532B2公开(公告)日： 2009-07-21
- 发明人: Biswajit Choudhury , Mark Gerrit Roelofs , Zhen-Yu Yang
- 申请人： Biswajit Choudhury , Mark Gerrit Roelofs , Zhen-Yu Yang
- 申请人地址： US DE Wilmington
- 专利权人： E.I. du Pont de Nemours and Company
- 当前专利权人： E.I. du Pont de Nemours and Company
- 当前专利权人地址： US DE Wilmington
- 国际申请： PCT/US2004/020704 WO 20040625
- 国际公布： WO2005/049204 WO 20050602
- 主分类号： H01M8/10
- IPC分类号： H01M8/10 ; C08J5/22
摘要：
A fluorinated ion exchange polymer is prepared by grafting a monomer onto a base polymer, wherein the grafting monomer is selected from the group consisting of structure 1a, 1b and mixture thereof; wherein Y is selected from the group consisting of —RFSO2F, —RFSO3M, —RSO2NH2 and —RFSO2N(M)SO2R2F, where in M is hydrogen, an alkali cation or ammonium; and RF and R2F are perfluorinated or partially fluorinated, and may optionally include ether oxygens; and n is between 1 and 2 for 1a, or n is between 1 and 3 for 1b. These ion exchange polymers are useful is preparing catalyst coated membranes and membrane electrode assemblies for fuel cells.