Ionically conductive material

Details Ionically conductive material Ionically conductive material

C - Chemistry, Metallurgy

08

L

400/5146, 400/53

C08L 83/12 (2006.01) C08K 3/00 (2006.01) C08L 71/02 (2006.01) H01B 1/12 (2006.01)

Patent

CA 2025863

An ionically conductive material comprises a crosslinked copolymer prepared by the reaction of (A) an organopolysiloxane and polyoxyalkylene copolymer, which has at least 2 silicon-bonded hydrogen-atoms in each molecule, with (B) a polyoxyalkylene having at least 2 aliphatically unsaturated hydrocarbon groups in each molecule, and (C) a metal ion from Group I or Group II of the Periodic Table, wherein said metal ion is dispersed in said crosslinked copolymer. Component (B) is a polyoxyalkylene having an aliphatically unsaturated hydrocarbon group at both chain terminals or a mixture of molecules in which some have an aliphatically unsaturated hydrocarbon group at both ends and some having the group at only one end. This mixture gives the highest conductivity.

Un matériau conducteur d'ions, renferme un copolymère réticulé, préparé par réaction (A) d'un copolymère d'organopolysiloxane et de polyoxyalkylène, comportant dans chaque molécule au moins 2 atomes d'hydrogène liés au silicium, avec (B) un polyoxyalkylène comptant dans chaque molécule au moins 2 groupes aliphatiques insaturés, et (C) un ion d'un métal du Groupe I ou II du Tableau périodique, sous forme dispersée dans ledit copolymère réticulé. Le constituant (B) est un polyoxyalkylène portant un groupe aliphatique insaturé aux deux extrémités de la chaîne, ou un mélange de molécules dont certaines portent un groupe aliphatique insaturé aux deux extrémités, alors que d'autres n'en ont qu'à l'une des deux extrémités. Ce mélange donne la conductivité maximale.

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