Mixtures comprising vinyl-containing sulphonic acid, polymer...

Details Mixtures comprising vinyl-containing sulphonic acid, polymer... Mixtures comprising vinyl-containing sulphonic acid, polymer...

C - Chemistry, Metallurgy

08

J

C08J 5/22 (2006.01) B01D 7/00 (2006.01) B01D 67/00 (2006.01) B01D 69/14 (2006.01) B01D 71/38 (2006.01) B01D 71/62 (2006.01) H01M 8/02 (2006.01) H01M 8/10 (2006.01) H01M 4/86 (2006.01) H01M 4/92 (2006.01)

Patent

CA 2477863

The invention relates to a proton conducting polymer membrane based on polyvinylsulphonic acid obtained by a method comprising the following steps: A) mixing a polymer with sulphonic acid containing vinyl, B) forming a flat structure by using the inventive mixture from step A) on a support, C) polymerisation of the vinylsulphonic acid present in the flat structure according to step B).The inventive membrane can be applied in a varied manner on account of the excellent chemical and thermal properties thereof and is particularly suitable for use as a polymer-electrolyte-membrane (PEM) in PEM- fuel cells.

Membrane polymère conductrice de protons à base d'acide polyvinylsulfonique qui peut être obtenue par un procédé consistant (A) à mélanger un polymère avec de l'acide sulfonique contenant du vinyle, (B) à former une structure plate à l'aide du mélange obtenu à l'étape (A) sur un support et (C) à polymériser l'acide vinylsulfonique présent dans la structure plate obtenue à l'étape (B). En raison de ses excellentes propriétés chimiques et thermiques, la membrane selon la présente invention peut être utilisée dans de nombreuses applications et convient particulièrement en tant que membrane polymère (PEM) dans les piles à combustibles PEM.

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