TECHNOLOGY FOCUS - POLYMERS - Preparation (Claimed): Preparation of (I) comprises production of the sulfonated aryl monomer, polycondensation or sulfonation of aryl monomers to form a sulfonated poly(arylene), which exhibits at least one electron donor substituent at the sulfonated aromatic rings and transformation of electron donor substituent of the sulfonated poly(arylene) into an electron acceptor substituent. Preferred Process: The process further comprises polycondensation of aryl monomers of formula (F1-AS-F2) or (F1-ANS-F2). Preferred Components: (I) comprises the recurring sulfur trioxide units of formulae (-(-Ar3(SO3M)n-X-)-) and (-(-Ar2(SO3M)n-Y1-)-); an aryl unit of formula (-(-Ar4-Z)-). (I) exhibits a molecular weight of 2000-200000 (preferably 10000-100000). The monomer or (macro) monomer is alpha,omega-dihydroxy compound formula (HO-W1-OH) or alpha,omega-dihalogen compound of formula (Hal-W1-Hal). (IIIa) is polybenzimidazole, polytetrafluoro ethylene, polyvinylidene fluoride, polysulfones, polyethersulfone, polyetherketone, polyphenylene oxide, polyphenylensulfide, polyimide, polycarbonates, polymethyl metacrylates or polyphosphazene. (I), (II) or (III) are embedded into a porous matrix. The polymer or polymer mixture is combined with fiber materials, fillers or other additives. The sulfonated aryl monomers in the preparation of sulfonated poly(arylenesulfone) are of formula (F1-Ara-SO2-Arb-F2).ANS = AS;Ar2, Ar3 = Ar1;Ar4, Ara, Arb = 5-18 membered (hetero)aromatic ring (where the (hetero)aromatic ring is not substituted with SO3M substituent) (preferably phenyl, naphthyl, anthracene, phenanthrene, biphenyl, furan, thiophene, pyrrole, thiazole, triazole, pyridine or (benz)imidazol);Z = either an electron donor/acceptor group or neither of them (preferably -SO2, -SO, -SO2O, -CO, -COO, -CONH, CONR, -POR, -S, -O or alkylene);W1 = -(CH2)n-, -(CF2)n-, -(CF2CH2)n-, -(CH2-CH2-O)n-CH2-CH2-, -(CH(CH3)-CH2-O)n-CH(CH3)-CH2-, -(CF2-CF2-O)n-CF2-CF2, polyarylenether sulfone, polyarylene ether ketone or polysiloxane; andHal = halogen.Provided that Z can be bound only next to a sulfonated (hetero)aromatic ring of the formula Ar1(SO3M)n, when Z represents no electron donor. Preferred Definitions:    X, Y1 = -SO2;    Ar2, Ar3 = phenyl, naphthyl, anthracene, phenanthrene, biphenyl, furan, thiophene, pyrrole, thiazole, triazole, pyridine or (benz)imidazol;    M = Li+, Na+, K+, NR4+, PR4+ or H+; and    n = 1.    EXAMPLE - Disodium-3,3'-disulfonate-4,4'-dichlorodiphenylsulfone-monohydrate (3.8591 g), sodium sulfide (0.5914 g) and dry sodium acetate (0.6216 g) were added to a reactor and dried for 2 hours at 100degreesC in vacuum. To the reaction mixture dry 1-methyl-2-pyrrolidone (20 ml) and dry toluol (35 ml) were added and the reaction mixture was warmed up in an oil bath at 145degreesC for 4 hours to evaporated the trapped water. The reaction mixture was further worked up to give sulfonated poly(1,4-phenyl-sulfone-1,4-phenylene-sulfide). Poly(sodium sulfonato-phenyl thiosulfone) (4.34 g) was dissolved in concentrated sulfuric acid (50 ml), which resulted in a dark-brown solution. To the reaction mixture hydrogen peroxide (4.5 ml) was slowly added. The reaction mixture was stirred for 2 days. The reaction mixture was further worked up to give sulfonated poly(1,4-phenyl-sulfone).