Ion conductive copolymers containing one or more hydrophobic...

C - Chemistry – Metallurgy – 08 – G

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C08G 75/00 (2006.01) C08F 228/00 (2006.01) C08F 228/02 (2006.01) C08G 75/10 (2006.01)

Patent

CA 2546015

In one aspect, the invention provides ion conductive copolymers comprising (1) a plurality of first oligomers, (2) a plurality of second oligomers, (3) ion conductive monomers and (4) linking monomers. The oligomers preferably are hydrophobic and together with the ion conductive monomers are randomly dispersed between the linking monomers. Uses of such polymeric materials include the formation of polymer electrolyte membranes (PEMs), catalyst coated membranes (CCM's) and membrane electrolyte assemblies (MEA's) which may be used in fuel cells and the like.

Dans un aspect, l'invention concerne des copolymères conducteurs d'ions comprenant (1) une pluralité de premiers oligomères, (2) une pluralité de seconds oligomères, (3) des monomères conducteurs d'ions et (4) des monomères de liaison. Les oligomères sont de préférence hydrophobes et, conjointement avec les monomères conducteurs d'ions, sont dispersés de manière aléatoire entre les monomères de liaison. Les utilisations de ces matières polymères incluent la formation de membranes à électrolyte polymère (PEM), de membranes recouvertes d'un catalyseur (CCM) et d'ensembles d'électrolytes pour membranes (MEA) pouvant être utilisés dans des piles à combustible et analogues.

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