Sulfonated polyarylene compounds, membrane material made therefrom, method for the production thereof and use

Sulfonated polyarylene compounds according to at least one of the general formulas (I)-(IV)

• and wherein:
• Ar1 are uninuclear and/or multinuclear aromatics and
• G1 is a group with electron acceptor properties and
• G2 is an ether and/or a sulfide and/or a ketone and/or a sulfone and/or a phenyl phosphinoxide and/or a sulfoxide group, wherein if G2 is an ether group, Ar is more than one uninuclear aromatic or one or more multinuclear aromatics and
• R1, R2, R3, R4 are substituents or R1 through R4 equals hydrogen or at least one radical R1 through R4 not equal to hydrogen and this is a substituent and
• y≧0 and z≧1 and x≧5 and
• Ar=are one or more uninuclear and/or multinuclear aromatics and/or one or more biphenyls,
• and sulfonic acid groups are bound at least to the “Ar” aromatic groups that form the side chains.