| 摘要 |
PCT No. PCT/EP96/02609 Sec. 371 Date Dec. 23, 1997 Sec. 102(e) Date Dec. 23, 1997 PCT Filed Jun. 17, 1996 PCT Pub. No. WO97/02308 PCT Pub. Date Jan. 23, 1997Phosphonium ionomers which, as random copolymers, are composed of the units (1) and (2) in which Ar- is a phenylene radical or a biphenylene, naphthylene or anthrylene radical or another divalent aromatic radical and may be different units within the polymer chain; -X- is an -S-, -SO- and/or -SO2- unit, where -X- within the polymer chain may be up to 3 different units; Z is a monovalent or polyvalent opposite ion; Ph is a phenyl radical; m is the charge of the opposite ion and the average degree of polymerization is in the range from 3 to 2000. The polymers can be used for the production of membranes, in particular for electrochemical cells. |
