TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: (I) is obtained from carboxylic acid by reacting with trichlorophosphine/phosphorus acid and followed by hydrolysis with water or by reacting carboxylic acid chloride or carboxylic acid anhydride with tris(trimethylsilylphosphite) and followed by hydrolysis using methanol. The hydroxyl group of (II) is covalently cross linked with OH groups of other (II) and optionally with OH groups of the polymer, where the covalent cross linker is a cross linker obtained by cross linking by adding silver nitrate to the OH group from (II) and optionally OH group containing polymer under hydrothermal condition and reduction of silver nitrate to elementary silver nano-particle and release of nitric acid; by cross linking 1-hydroxymethylene-1,1-bisphosphoric acid with OH-group using epichlorhydrin as a cross linker; by cross linking OH-group of (II) and optionally the OH-group of the polymer with glutaraldehyde or other dialdehyde; by cross linking the OH-group of (II) and optionally the OH-group of the polymer after reacting OH groups with cinnamic acid chloride through photo-cross linking (cycloaddition) under the effect of UV-light; by cross linking by the reaction of OH group of (II) and optionally the OH groups of the polymer with alpha , omega -dihalogenalkane or dihalogenaromatic of formula (Hal-R-Hal), optionally under addition of a deprotonating agent for the OH-group.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The modified polymer comprises polyolefin including polyethylene, polypropylene, polyisobutylene, polynorbornene, polymethylpentene, polyisoprene, poly(1,4-butadiene), poly(1,2-butadiene), styrene (co)polymer including polystyrene, poly(methylstyrene), poly( alpha , beta , beta -trifluorostyrene), poly (pentafluorostyrene), polyvinyl alcohol and its copolymer, polyvinyl phenol and its copolymer, poly(4-vinylpyridine), poly(2-vinylpyridine) and its copolymer, perfluorinated ionomer including Nafion (RTM: Sulfonated tetrafluoroethylene copolymer) or sulfur dioxide-Hal-precursor of Nafion (RTM: Sulfonated tetrafluoroethylene copolymer), Dow-membrane, GoreSelect (RTM: Polymer electrolyte membrane), sulfonated polyvinylidene fluoride and/or SO2Hal-precursor, (het)aryl main chain polymer including polyetherketone comprising polyether ketone, polyetherether ketone, polyetherketone ketone, polyether ether ketone ketone, polyether ketone ether ketone ketone, polyethersulfone including polysulfone, polyphenylsulfone, polyetherethersulfone, polyethersulfone, poly(benz)imidazole and other oligomer containing (benz)imidazole-building block and polymer; where the (benz)imidazole group is present in the main chain or in the polymer side chain, polyphenylene ether including e.g. poly(2,6-dimethyloxyphenylene), poly(2,6-diphenyloxyphenylene), polyphenylene sulfide and copolymer, poly(1,4-phenylene) or poly(1,3 phenylene), that is optionally modified in the side group with benzoyl-, naphtoyl- or o-phenyloxy-1,4-benzoyl group, m-phenyloxy-1,4-benzoyl group or p-phenyloxy-1,4-benzoyl group, poly(benzoxazole) and copolymer, poly(benzthiazole) and copolymer, poly(phthalazinone) and copolymer; polyaniline and copolymer, aryl main chain polymers as basic polymers for the polymers and their mixtures. The block copolymers are the polymer (preferably aryl main chain polymers) cation exchange group-modified blocks (-COX, POX2, SO2X, OMet, NR2, ammonium ion or OR), unmodified blocks are, OH-modified blocks and unmodified blocks, block copolymer, basic groups containing blocks and unmodified blocks; basic groups, where hetero-cyclic, preferably heterocyclic or hetero aromatic including pyridyl-, imidazolyl-, benzimidazolyl- or pyrazolyl group; hydrophobic modified blocks (including trimethylsilyl, trifluoromethyl, fluoride), as a basic polymer.Met = metal cation;R = alkyl or aryl;Hal = F, Cl, Br or I; andX = OH. Preferred Definitions:    R = hydroxymethylene-oligophosphoric acid from primary, secondary or tertiary basic amino group, quaternary ammonium salt, imidazole group, pyrazole group, pyridyl residue or basic heterocyclic or heteroaromatic residue.    EXAMPLE - Carboxylate polysulfone (PSU) with two carboxylic acid group per repetition unit was prepared. The manufactured polysulfone-diacid chloride was dissolved in 9-fold excess, based on the mass of the polymer, of thionylchloride. To the mixture, a small quantity of N,N-dimethylformamide was added and heated to reflux for 72 hours. The PSU-di-acid chloride was precipitated in a large excess of isopropanol and washed with surplus thionylchloride. The PSU-di-acid chloride was dried. After that PSU-diacidchloride (10 g) was dissolved in water-free tetrahydrofuran (1000 ml) and silylated in a dried glass piston (2000 ml) under argon atmosphere. The mixture was cooled under argon to -78 degrees C. After that tris(trimethylsilyl) phosphite (per milliequivalent acid chloride 1milli) was introduced under intensive stirring. The stirring was continued for 2 hours at the same temperature and the temperature was slightly increased to -10 degrees C. After that 10-fold excess of methanol was added to the polymer for hydrolyzating silyl ester. The reaction mixture was worked up to give a polymer modified with 1-hydroxymethylene-1,1-bisphosphoric acid group.