C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 65/22 (2006.01) C08G 65/24 (2006.01) C08G 65/321 (2006.01)
Patent
CA 2597029
The invention relates to a copolymer of ethylene oxide or propylene oxide and of at least one substituted oxirane bearing an ionic group. The copolymer is characterised in that the chain thereof comprises repeating units -O-CH2 CH(-CH2-O-SO3 -Li+)-, repeating units -O-CH2- CHR-, in which R is H or CH3, and, optionally, repeating units -O-CH2-CH(-CH2R')-, in which R' is a functional group. The invention can be used to produce an electrolyte in electrochemical devices, selective membranes, reference membranes.
L'invention concerne un copolymère d'oxyde d'éthylène ou d'oxyde de propylène et d'au moins un oxirane substitué portant un groupement ionique. Le copolymère est caractérisé en ce que sa chaîne comprend des unités récurrentes -O-CH2 CH(-CH2-O-SO3 -Li+)-, des unités récurrentes -O-CH2- CHR- dans lesquelles R est H ou CH3, éventuellement des unités récurrentes -O-CH2-CH(- CH2R')-dans lesquelles R' est un groupe fonctionnel. Utilisations : électrolyte dans les dispositifs électrochimiques, membrane sélective, membrane de référence.
Alloin Fannie
Chauvin Christophe
Deschamps Marc
Iojoiu Christina
Sanchez Jean-Yves
Batscap
Robic
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