Polymers and polymer membranes covalently cross-linked by...

C - Chemistry – Metallurgy – 08 – J

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C08J 5/22 (2006.01) B01D 53/22 (2006.01) B01D 67/00 (2006.01) B01D 71/52 (2006.01) B01D 71/68 (2006.01) B01D 71/82 (2006.01) C08G 75/00 (2006.01) H01M 2/16 (2006.01) H01M 8/10 (2006.01) H01M 10/40 (2006.01)

Patent

CA 2379962

The invention relates to a covalently cross-linked polymer or polymer membrane consisting of one or more polymers, which can bear the following functional groups (M=Hal (F, Cl, Br, I), OR, NR2; R=alkyl, hydroxyalkyl, aryl; (Me=H, Li, Na, K, Cs, or other metal cations or ammonium ions); a) precursors of cation exchange groups: SO2M and/or POM2 and/or COM b) sulphinate groups SO2Me and which can be covalently cross-linked using the following organic compounds: a) di, tri or oligofunctional haloalkanes or haloaromatics, which have been reacted with sulphinate groups SO2Me, whereby the following cross-linking bridges are present in the polymer/in the polymer blend/in the polymer membrane (Y=cross-linking bridges, X=Hal (F, Cl, Br, I), OR, Y=(CH2)x-; - arylene-; -(CH2)x-arylene-; CH2arylene-CH2-, x=3-12): polymer-SO2Y-SO2-polymer and/or b) compounds containing the following groups: Hal-(CH2)x-NHR, one side of which (Hal-) has been reacted with sulphinate groups SO2ME and the other side (-NHR) with SO2M groups, whereby the following cross-linking bridges are present in the polymer/in the polymer blend/in the polymer membrane: polymer- SO2-(CH2)x-NR-SO2-polymer and/or c) compounds containing the following groups: NHR-(CH2)x)-NHR, which have been reacted with sulphinate groups SO2Me, whereby the following cross-linking bridges are present in the polymer/in the polymer blend/in the polymer membrane: polymer-SO2-NR-(CH2)x-NR-SO2-polymer.

L'invention concerne un polymère ou une membrane polymère réticulés de façon covalente et composés d'au moins un polymère pouvant porter les groupes fonctionnels suivants (M=Hal (F, Cl, Br, I), OR, NR¿2?; R=alkyle, hydroxyalkyle, aryle; (Me=H, Li, Na, K, Cs, ou d'autres cations métalliques ou ions d'ammonium); a) précurseurs de groupes échangeurs de cations; SO¿2?M et/ou POM¿2? et/ou COM b) groupes de sulfoninate SO¿2?Me et qui peuvent être réticulés de façon covalente au moyen des composés organiques suivants: a) alcanes halogénés ou aromates halogénés di- tri- ou oligofonctionnels que l'on peut faire réagir avec des groupes de sulfinate SO¿2?Me, sachant que le polymère/le mélange polymérique/la membrane polymère renferment les ponts de réticulation suivants (Y=ponts de réticulation, X=Hal (F, Cl, Br, I), OR, Y=(CH¿2?)¿x?-; -arylène-; -(CH¿2?)¿x?-arylène-; CH¿2?arylène-CH¿2?-, x=3-12): polymère-SO¿2?Y-SO¿2?-polymère et/ou b) composés contenant les groupes suivants: Hal-(CH¿2?)¿x?-NHR mis, côté (hal-), en réaction avec des groupes de sulfinate SO¿2?ME, et de l'autre côté (-NHR) avec des groupes SO¿2?M, sachant que le polymère/le mélange polymérique/la membrane polymère renferment les ponts de réticulation: polymère-SO¿2?-(CH¿2?)¿x?-NR-SO¿2?-polymère et/ou c) composés contenant les groupes suivants: NHR-(CH¿2?)¿x?)-NHR mis en réaction avec des groupes SO¿2?Me, sachant que le polymère/le mélange polymérique/la membrane polymère renferment les ponts de réticulation suivants : polymère-SO¿2?-NR-(CH¿2?)¿x?-NR-SO¿2?-polymère.

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