Compositions and method of preparation by chlorosulfonation of d

Details Compositions and method of preparation by chlorosulfonation of d Compositions and method of preparation by chlorosulfonation of d

1983-09-22

1985-04-02

Lee, Lester L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Ion-exchange polymer or process of preparing

2105002, 521 30, 525534, 525535, C08G 6548

Patent

active

045088527

ABSTRACT:
Novel chlorosulfonated polyarylethersulfones derived by controlled treatment with chlorosulfonic acid of difficultly sulfonatable polyarylethersulfone of recurring units of the formula: ##STR1## wherein Ar.sub.1 and Ar.sub.2 represent phenylene or phenylene substituted with non-deactivating groups where Ar.sub.1 and Ar.sub.2 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.

REFERENCES:
patent: 4268650 (1981-05-01), Rose
patent: 4273903 (1981-06-01), Rose
patent: 4413106 (1983-11-01), Coplan et al.
patent: 4414368 (1983-11-01), Coplan et al.

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