C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 65/40 (2006.01) C08G 65/48 (2006.01) C08J 5/22 (2006.01) H01M 8/02 (2006.01) H01M 8/10 (2006.01)
Patent
CA 2657854
A sulfonated poly(aryl ether) (SPAE) having a poly(aryl ether) (PAE) main chain and a sulfonated phenyl group pendent from the main chain are useful in proton exchange membranes (PEMs), particularly for fuel cells. The pendent phenyl group can provide an easily sulfonable site that may be sulfonated under mild conditions, providing the ability to precisely control the sulfonic acid content of the SPAE.
L'invention concerne un poly(aryl ether) sulfoné (SPAE) présentant une chaîne principale de poly(aryl ether) (PAE) et un groupe phénylique sulfoné latéral s'étendant à partir de la chaîne principale utiles dans des membranes d'échanges protoniques (PEM), en particulier dans des membranes destinées à des piles à combustible. Le groupe phénylique latéral de l'invention peut constituer un site facilement sulfonable pouvant être sulfoné dans des conditions de faible sulfonation, ce qui permet de contrôler avec précision la teneur d'acide sulfonique du SPAE.
Guiver Michael D.
Liu Baijun
Robertson Gilles P.
Koenig Hans
National Research Council Of Canada
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