Polymer membranes

C - Chemistry – Metallurgy – 08 – J

Patent

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Details

C08J 5/22 (2006.01) B01D 67/00 (2006.01) B01D 69/14 (2006.01) B01D 71/00 (2006.01) B01D 71/52 (2006.01) B01D 71/68 (2006.01) B01D 71/80 (2006.01) B01D 71/82 (2006.01) C08G 83/00 (2006.01) C25B 9/00 (2006.01) C25B 13/04 (2006.01) H01B 1/12 (2006.01) H01M 8/10 (2006.01) H01M 10/40 (2006.01)

Patent

CA 2408381

The invention relates to novel organic/inorganic hybrid membranes which have the following composition: a polymer acid containing -SO3H-, -PO3H2-, -COOH- or B(OH)2 groups; a polymer base (optional), which contains primary, secondary or tertiary amino groups, pyridine groups, imidazole, benzimidazole, triazole, benzotriazole-pyrazole or benzpyrazole groups, either in the side chain or the main chain; an additional polymer base (optional) containing the aforementioned base groups; an elemental oxide, or metal oxide or metal hydroxide, which has been obtained by the hydrolysis and/or sol-gel reaction of one elemental organic and/or organometallic compound during the membrane forming process and/or by a re-treatment of the membrane in aqueous acidic, alkaline or neutral electrolytes. The invention also relates to methods for producing said membranes and to the various uses for membranes of this type.

La présente invention concerne de nouvelles membranes organiques-minérales qui sont composées de : un acide polymère comportant des groupes SO¿3?H, PO¿3?H¿2?, COOH ou B(OH)¿2? ; (éventuellement) une base polymère comportant des groupes amine primaires, secondaires ou tertiaires, des groupes pyridine, des groupe imidazol, benzimidazol, triazol, benzotriazol, pyrazol ou benzopyrazol, soit dans la chaîne latérale soit dans la chaîne principale ; (éventuellement) une autre base polymère comportant des groupes basiques mentionnés ci-dessus ; un oxyde ou hydroxyde élémentaire ou métallique obtenu par hydrolyse et/ou réaction sol-gel d'un composé organoélémentaire ou organométallique au cours du processus de formation de membrane, et/ou par post-traitement de la membrane dans des électrolytes aqueux acides, alcalins ou neutres. L'invention a également pour objet des procédés permettant de produire ces membranes et différentes possibilités d'utilisation de ces membranes.

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