NOVELTY - Water insoluble polymeric material (I) comprises at least one sulfonated aryl-containing copolymer and at least one thermoplastic or thermosetting non-sulfonated homopolymer or copolymer consisting of e.g. optionally segmented polyurethane, poly(ether urethane), polyurethane urea, arylenevinyl containing block copolymer, polysiloxane, polyamide, polyketone, polyester, polyamine, polyacrylate, polyalkylene, polycarbonate, fluoropolymer, polysulfone, carbohydrate polymer, polyether or acrylate, where the sulfonated aryl-containing copolymer is at least 20-80 mol.% sulfonated.    USE - (I) is useful for manufacturing an article consisting of a membrane, a medical device, a pharmaceutical composition, a moisture transfer membrane, a fluid-absorbing material, a fuel cell, a capacitor, a wound dressing, a fabric, a building material, a desalination membrane or device, a membrane for heating, a membrane or device for ventilating and air conditioning (HVAC), a packing material, a surface coating, a shunt, a stent, tubing, clothing, bedding, surface coatings, fluid absorbing materials, adhesives, fluid collection or storage bags, sensors, gauges, or fluid filters (claimed). (I) is useful as coatings for medical devices, protective clothing and fabric, laboratory equipment, vascular stents and shunts, absorbent materials and separation membranes, three-dimensional constructs or devices. (I) is useful as component in spun fibers, woven or knit fabrics, thread, yarn or heat transfer membrane or coating.    ADVANTAGE - (I) is water insoluble, has improved mechanical properties and dimensional stability. The method of sulfonating (I) is uniform, efficacious and has the ability to control the level of sulfonation and thus controls the desired properties.    DETAILED DESCRIPTION - Water insoluble polymeric material (I) comprises at least one sulfonated aryl-containing copolymer and at least one thermoplastic or thermosetting non-sulfonated homopolymer or copolymer consisting of optionally segmented polyurethane, poly(ether urethane), poly(carbonate urethane), poly(siloxy urethane), polyurethane urea, arylenevinyl containing block copolymer, polysiloxane, polyamide, polyketone, polyester, poly(ether-ester), polyanhydride, polyamine, poly(ortho ester), polyacrylate, polyalkylene, polycarbonate, fluoropolymer, polysulfone, carbohydrate polymer, polypeptide, polyphosphazine, polyether, poly(ether sulfone), poly(vinyl alcohol), poly(ethylene-co-vinyl acetate), poly(ethylene-co-vinyl alcohol), poly(epoxide)-polyamine curing system or acrylate, where the sulfonated aryl-containing copolymer is at least 20-80 mol.% sulfonated. INDEPENDENT CLAIMS are included for:    (1) an article of manufacture made with (I), where the article is a membrane, a medical device, a pharmaceutical composition, a moisture transfer membrane, a fluid-absorbing material, a fuel cell, a capacitor, a wound dressing, a fabric, a building material, a desalination membrane or device, a membrane for heating, a membrane or device for ventilating and air conditioning (HVAC), a packing material, a surface coating, a shunt, a stent, tubing, clothing, bedding, surface coatings, fluid absorbing materials, adhesives, fluid collection or storage bags, sensors, gauges, or fluid filters;    (2) preparation of (I) comprising combining at least one sulfonated polymer in solution with at least one non-sulfonated polymer, allowing the solution to thoroughly mix and isolating and/or processing the polymer blend; and    (3) preparation of the article comprising combining at least one sulfonated polymer in solution with at least one non-sulfonated polymer, allowing the solution to thoroughly mix, isolating the polymer blend and manipulating the polymer blend to form the article.