Polymer electrolyte with aromatic sulfone crosslinking

Details Polymer electrolyte with aromatic sulfone crosslinking Polymer electrolyte with aromatic sulfone crosslinking

H - Electricity

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H01M 8/10 (2006.01) B01D 67/00 (2006.01) B01D 69/12 (2006.01) B01D 71/36 (2006.01) B01D 71/82 (2006.01) C08J 5/22 (2006.01) H01M 2/16 (2006.01)

Patent

CA 2546762

A method is provided for obtaining crosslinked polymers having pendent sulfonic acid groups by crosslinking through the sulfonic acid groups or their precursors with aromatic crosslinkers or aromatic pendent crosslinking groups to form aromatic sulfones. Such crosslinked polymers may be used to make polymer electrolyte membranes (PEM's) that may be used in electrolytic cells such as fuel cells.

L'invention concerne un procédé destiné à obtenir des polymères réticulés possédant des groupe latéraux d'acide sulfonique par la polymérisation à travers les groupes d'acide sulfonique ou leurs précurseurs avec des éléments de réticulation aromatiques ou des groupes de réticulation latéraux, à des fins de formation de sulfones aromatiques. Ces polymères réticulés peuvent s'utiliser pour fabriquer des membranes d'électrolytes primaires (PEM) qui peuvent s'utiliser dans des piles électrolytiques telles que les piles à combustible.

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