Polymer electrolytes and their preparation

Details Polymer electrolytes and their preparation Polymer electrolytes and their preparation

C - Chemistry, Metallurgy

08

G

C08G 65/00 (2006.01) B01D 71/52 (2006.01) C08G 61/12 (2006.01) C08G 65/48 (2006.01) H01G 9/02 (2006.01) H01M 6/18 (2006.01)

Patent

CA 2098159

polymer electrolytes are described that comprise a sulfonated aromatic polyether ketone, e.g. of the formula II Image where A is from 0.2 to 1, c is from 0 to 0.8, and a + c = 1. The polymer electrolytes are prepared by dissolving an aromatic polyether ketone in 94-97% by weight sulfuric acid and adding a sulfonating agent, e.g. oleum, to the solution until the sulfuric acid concentration is from 98 to 99.9 % by weight.

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