Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Konrad Olma

Michael Popall

Lothar Fröhlich

Stéphane Jacob

Frank Kahlenberg

This invention relates to a silane-resin composition that can be obtained by at least partial hydrolytic condensation of at least the following components: (1) one or more sulfonic acid group-containing silane(s) with at least one group that can be cleaved under hydrolytic conditions, (2) one or more styryl-functionalized silane(s) and (3) one or more silane(s) that carry a nitrogen-containing heterocyclic compound, an amine group or a sulfonamide group with at least one group that can be cleaved under hydrolytic conditions, and mixing of the components before, during or after the hydrolytic condensation, as well as a process for the production of this composition. With the silane resin that is obtained, proton-conductive, organically cross-linked heteropolysiloxanes can be produced that are suitable for PEMFC in a layer or membrane form as proton-conductive systems. Their proton conductivity can be further increased by the addition of suitable liquids.

Proton-conductive membranes and layers and methods for their production

The invention relates to a method for preparing silanes comprising styryl groups, said silanes being represented by the general formula (I):(St)SiR'Rwith improved yields through a reaction with magnesium in a solvent mixture comprising from 30:70 to 70:30 (v/v) of diethyl ether and tetrahydrofuran.

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Höchberg, Germany

Konrad Olma