Compounds and method of preparation by chlorosulfonation of...

Details Compounds and method of preparation by chlorosulfonation of... Compounds and method of preparation by chlorosulfonation of...

C - Chemistry, Metallurgy

08

G

18/13, 402/320

C08G 75/23 (2006.01) B01J 39/18 (2006.01) C08G 65/48 (2006.01) C08J 5/22 (2006.01)

Patent

CA 1221493

ABSTRACT OF THE DISCLOSURE Novel chlorosulfonated polyarylethersulfones derived by controlled treatment with chlorosulfonic acid of difficultly sulfonatable polyarylethersulfone of recurring units of the formula: Image wherein Ar1 and Ar2 represent phenylene or phenylene sub- stituted with non-deactivating groups where Ar1 and Ar2 may be the same or different are described with the method of their preparation, The partially sulfonated- sulfochlorinated polyarylethersulfones may be subsequently converted to cation-exchange materials or ion-exchange materials with mixed cation and anion exchange sites.

441872

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