Gkss-forschungszentrum Geesthacht Gmbh

Technische Universitát Dresden

Helmholtz-zentrum Geesthacht Zentrum Fur Material Und Kustenforschung Gmbh

Gkss-forshungszentrum Geesthacht Gmbh

Dominique De Figueiredo Gomes

Klaus-Viktor Peinemann

Suzana Nunes

Volker Abetz

Stefan Kaskel

Detlev Fritsch

Mariela Leticia Ponce

Marcio Rodrigo Loos

Wolfgang Dietzel

Bobby Kannan Mathan

Jerusa Roeder Jesus

A polymer electrolyte membrane is made from a polymer electrolyte and a coordination polymer, and finds use in a fuel cell. The polymer electrolyte membrane may be made by dissolving a polymer electrolyte in a solvent to provide a first solution, adding a coordination polymer to the first solution to yield a second solution, and forming the second solution into a film.

Polymer electrolyte membrane comprising coordination polymer

A method for the production of a functionalized polytriazole polymer, particularly a poly(1,2,4-triazole)-polymer, includes the steps of (a) mixing a hydrazine salt, particularly hydrazine sulfate, with at least an aromatic and/or heteroaromatic dicarboxylic acid and/or at least a dicarboxylic acid derivate in polyphosphoric acid and if necessary further components for obtaining a solution; (b) heating the solution in a protective gas atmosphere for obtaining polyhydrazides and adding aromatic and/or heteroaromatic primary amines to the solution; and (c) precipitating a polymer. If necessary, neutralization in a basic solution may be carried out.

Production of a functionalized polytriazole polymer

A polyoxadiazole polymer is synthesized by heating polyphosphoric acid to a temperature of at least about 160&#xb0; C. and making a solution by mixing hydrazine sulfate salt with one or more dicarboxylic acids or their derivatives in the heated polyphosphoric acid. The solution is heated under an inert gas atmosphere and the polymer is precipitated in a basic solution. The polyoxadiazole polymer can be produced as a homopolymer or copolymer, and may be used to produce a membrane or fibers.

Method for the synthesis of a polyoxadiazole polymer

Composite materials are provided. A representative material is configured as a composite membrane for gas separation, vapor separation, or pervaporation. The composite membrane comprises at least a first polymer and a second polymer. Processes for the production of composite materials, in particular composite membranes, also are provided.

Composite material, in particular composite membrane, and process for the production of the same

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Apensen, Germany

Dominique De Figueiredo Gomes