Abstract: Copolymer-modified nanoparticles produced by a process in which nanoparticles are ablated by laser radiation from a surface of a substrate in a liquid include an amphiphilic copolymer.

Abstract: The present invention relates to a process for particle synthesis on a superamphiphobic or superoleophobic surface comprising at least the followings steps: a) providing a substrate having at least one superamphiphobic or superoleophobic surface, i.e. a surface exhibiting an apparent macroscopic contact angle of at least 140° with respect to 10 ?l sized drops of liquids having a surface tension of not more than 0.

Abstract: The invention relates to novel polythiophene-polyanion complexes which are soluble or dispersible in nonpolar organic solvents, and to the use thereof.

Abstract: Copolymer-modified nanoparticles produced by a process in which nanoparticles are ablated by laser radiation from a surface of a substrate in a liquid include an amphiphilic copolymer.

Abstract: The invention relates to novel polythiophene-polyanion complexes which are soluble or dispersible in nonpolar organic solvents, and to the use thereof.

Abstract: Membrane for fuel cells, containing polymers comprising phosphonic acid and/or sulphonic acid groups, membrane electrode assemblies and the use thereof in fuel cells The present invention relates to a membrane for fuel cells, containing polymers comprising phosphonic acid and/or sulphonic acid groups, characterized in that the polymer comprising phosphonic acid and/or sulphonic acid groups can be obtained by copolymerisation of monomers comprising phosphonic acid and/or sulphonic acid groups and hydrophobic monomers.

Abstract: The present invention relates to functionalized polyazoles comprising recurring imidazole units of the general formula where the radicals Ar, Ar1 and Ar2 are tetravalent, divalent or trivalent aromatic or heteroaromatic groups, Y is a bond or a group having from 1 to 20 carbon atoms, v is an integer from 1 to 10 and Z is a group of the general formula where R1 and R2 are each, independently of one another, a hydrogen atom or a group having from 1 to 20 carbon atoms, characterized in that the polyazole is soluble in organic solvents. Furthermore, the present invention relates to intermediates and to a process for preparing the polyazoles. Furthermore, the present invention describes polymer electrolyte membranes and fuel cells in which the polyazoles of the invention are present.

Abstract: The invention relates to the use of statistical copolymers containing at least one structural unit containing hydrophobic radicals and at least one structural unit containing hydrophilic radicals as emulsifiers, in particular in the synthesis of nanoparticles, and to processes for the production of such particles in which, in a step a), an inverse emulsion comprising one or more water-soluble precursors of the nanoparticies or a melt is prepared with the aid of a statistical copolymer of at least one monomer containing hydrophobic radicals and at least one monomer containing hydrophilic radicals, and, in a step b), particles are produced.

Abstract: The invention relates to polymer-modified nanoparticles which are suitable as UV stabilisers in polymers, characterised in that they are obtainable by a process in which, in a step a), an inverse emulsion comprising one or more water-soluble precursors of the nanoparticles or a melt is prepared with the aid of a random copolymer of at least one monomer containing hydrophobic radicals and at least one monomer containing hydrophilic radicals, and, in a step b), particles are produced, and to the use thereof for UV protection in polymers.

Abstract: A supported catalyst for olefin polymerization comprises A) as support material, a copolymer comprising the monomer units I, II and III, where the monomer units I have the formula (I) and the monomer units II have the formula (II), ?where the variables have the following meanings: R1 is hydrogen, C1-C4-alkyl or phenyl, R2 is substituted or unsubstituted aryl or branched or unbranched alkyl or alkenyl, A1 is a direct chemical bond or a substituted or unsubstituted phenylene group, R3 are identical or different and are each hydrogen, C1-C10-alkyl or substituted or unsubstituted phenyl, p is an integer from 0 to 8, and R4 to R7 are hydrogen, C1-C10-alkyl or substituted or unsubstituted phenyl, and the monomer units III have polar groups, and B) at least one metallocene complex and C) at least one compound capable of forming metallocenium ions.

Abstract: A process for preparing a supported catalyst comprises the steps of (1) preparation of a copolymer having comonomer units which comprise leaving groups; (2) polymer-analogous reaction with a substituted or unsubstituted cyclopentadienyl compound, and (3) reaction of the copolymer of (2) with a mono-Cp-metallocene compound.

Abstract: A process for preparing polymers which comprises conducting polymerization in the presence of free radicals of the formula I where Q is NR2 or S and T is CR3R4 or S and R1, R2, R3 and R4 can be identical or different and independently are hydrogen, C1- to C20-alkyl or C6- to C18-aryl.

Abstract: A process for preparing polymers of N-vinyl compounds comprises polymerizing the vinyl compounds in the presence of free radicals of the formula I where Q is NR2 or S and T is CR3R4 or S and R1, R2, R3 and R4 can be identical or different and are, independently of one another, hydrogen, C1-C20-alkyl or C6-C18-aryl.

Abstract: Processes for preparing polymers of vinylic monomers where polymerization is conducted in the presence of free-radical initiators and electron donors.

Abstract: Polymeric tetraaroxyperylene-3,4,9,10-tetracarboxylic diimides of the formula I ##STR1## (R.sup.1 : denotes identical or different aryl radicals which may be substituted by cyano, nitro, halogen, C.sub.1 -C.sub.18 -alkoxy, C.sub.5 -C.sub.7 -cycloalkyl and/or C.sub.1 -C.sub.18 -alkyl and may each contain up to 24 carbon atoms;R.sup.2 : denotes C.sub.2 -C.sub.30 -alkylene groups whose carbon chain may be interrupted by from 1 to 10 oxygen atoms in ether function or by a phenylene or cyclohexylene group, or optionally C.sub.1 -C.sub.10 -alkylene- or oxygen-bridged C.sub.6 -C.sub.30 -arylene or cyclohexylene radicals;n: is from 2 to 100),preparation thereof and use thereof and also tetraaroxypery-lene-3,4,9,10-tetracarboxylic dianhydrides as intermediates therefor.