| abstract |
The present invention relates to the field of polymer chemistry and relates to sulfonated polyarylene compounds which can be used, for example, as ion exchange membranes in fuel cells, as well as processes for their production and their use. The object of the present invention is a sulfonated polyarylene compound having a defined degree of sulfonation and -location, which is hydrolytically stable and thermally stable, from which the membrane material has improved hydrolysis resistance It was to show compounds that can be produced. The object is solved by a sulfonated polyarylene compound according to at least one of the general formulas (I) to (IV). |