Cross-linked sulphonated polymers and method for preparing same

C - Chemistry – Metallurgy – 08 – F

Patent

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Details

C08F 8/44 (2006.01) C08F 8/36 (2006.01) C08G 81/00 (2006.01) C08G 85/00 (2006.01) C08J 5/22 (2006.01)

Patent

CA 2283668

The invention concerns cross-linked sulphonated polymers, optionally perfluorinated, and the method for preparing them. When they are moulded in the form of membranes, said polymers are useful in electrochemical cells, in a chlorine-sodium electrolysis process, as separator in en electrochemical preparation of organic and inorganic compounds, as separator between an aqueous phase and an organic phase, or as catalyst for Diels-Alder additions, Friedel-Craft reactions, aldol condensations, cationic polymerisation, esterification, and acetal formation.

La présente invention concerne des polymères sulfonés réticulés, éventuellement perfluorés, et leur procédé de préparation. Lorsque moulés sous forme de membranes, les polymères sont utiles dans les cellules électrochimiques, dans un procédé d'électrolyse chlore-soude, comme séparateur dans une préparation électrochimique de composés organiques et inorganiques, comme séparateur entre une phase aqueuse et une phase organique, ou comme catalyseur pour les additions Diels-Alder, les réactions Friedel-Craft, les condensations aldol, la polymérisation cationique, les estérifications, et la formation d'acétals.

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