Polymer membrane composition

Details Polymer membrane composition Polymer membrane composition

C - Chemistry, Metallurgy

08

J

C08J 5/22 (2006.01) B01D 71/06 (2006.01) B01D 71/68 (2006.01) C25B 9/00 (2006.01) G01N 27/00 (2006.01) H01B 1/12 (2006.01) H01M 2/16 (2006.01) H01M 8/02 (2006.01) H01M 8/10 (2006.01)

Patent

CA 2415614

The invention includes compositions comprising at least first and second polymers and optionally a third polymer wherein acid subunits, basic subunits and elastomeric subunits are contained in the polymers. In one aspect, the composition comprises a ternary polymer blend comprising an acidic polymer comprising acidic subunits, a basic polymer comprising basic subunits and an elastomeric polymer comprising elastomeric subunits. In an alternate aspect, the composition comprises a binary polymer blend which comprises acidic or basic subunits in one polymer and a copolymer comprising the other of the acidic or basic subunit and an elastomeric subunit. Such polymer compositions may be formed into a membrane having electrochemical properties which permit the use of such a membrane in an electrochemical device.

L'invention concerne des compositions qui comprennent au moins un premier et un deuxi­me polym­res et, ~ventuellement, un troisi­me polym­re dans lesquels des sous-unit~s acides, des sous-unit~s de base et des sous-unit~s ~lastom~riques sont pr~sentes. Dans un aspect, la composition est constitu~e d'un m~lange de polym­res ternaire qui comprend un polym­re acide contenant des sous-unit~s acides, un polym­re de base contenant des sous-unit~s de base et un polym­re ~lastom~rique contenant des sous-unit~s ~lastom~riques. Dans un autre aspect, la composition est constitu~e d'un m~lange de polym­res binaire comprenant une sous-unit~ acide ou une sous-unit~ de base dans un polym­re, et d'un copolym­re comprenant la sous-unit~ acide ou la sous-unit~ de base restante et une sous-unit~ ~lastom~rique. Ces compositions polym~riques peuvent former une membrane pr~sentant des propri~t~s ~lectrochimiques qui lui permettent d'Útre utilis~e dans un dispositif ~lectrochimique.

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