发明名称 Sulfonated polyimides for use in production of ion exchange membranes which are employed in fuel cells of solid electrolyte type, used as power source for electric vehicles
摘要 Sulfonated polyimides, ion-exchange membranes and fuel cells are new. Sulfonated polyimides are formed of sequences or blocks represented by formulae (Ix) and (Iy) x = at least 4, preferably 4-15; y = at least 5, preferably 5-40; C1 and C2 = identical or different tetravalent groups comprising at least one 6-10C aromatic cycle, optionally substituted and/or 5-10 atoms heterocycle of aromatic type, optionally substituted, and comprising one or more heteroatoms selected from S, N and O; with C1 and C2 each forming 5 or 6 atoms cycles with adjacent imide groups; Ar1 and Ar2 = identical or different divalent group comprising at least one 6-10C aromatic cycle, optionally substituted and/or 5-10 atoms heterocycle of aromatic type, optionally substituted, and comprising one or more heteroatoms selected from S, N and O, with at least one of aromatic cycles and/or heterocycles of Ar2 substituted with at least one sulfonic group . Sulfonated polyimide has general formula (I) C1, C2, Ar1, Ar2, x and y = as described for (Ix) and (Iy); R2 and R2 = NH2 or group (II); C3 = divalent group comprising at least one 6-10C aromatic cycle, optionally substituted and/or 5-10 atoms heterocycle of aromatic type, optionally substituted, and comprising one or more heteroatoms selected from S, N and O; and it forms 5 or 6 atoms cycle with adjacent imide group; z = 1-10 (Full definitions given in DEFINITIONS (Full definitions) Field). Independent claims are also included for 1) membrane comprising sulfonated polyimide as claimed; and 2) fuel cell comprising at least one membrane as claimed.
申请公布号 FR2799198(A1) 申请公布日期 2001.04.06
申请号 FR19990012356 申请日期 1999.10.04
申请人 COMMISSARIAT A L'ENERGIE ATOMIQUE 发明人 JOUSSE FRANCK;MERCIER REGIS
分类号 C08G73/10;C08J5/22;H01B1/06;H01M8/02;H01M8/10 主分类号 C08G73/10
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