Method for preparation of cation exchange membranes

Details Method for preparation of cation exchange membranes Method for preparation of cation exchange membranes

1977-11-14

1978-11-21

Schofer, Joseph L.

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

Synthetic resins

Ion-exchange polymer or process of preparing

526 18, 526 521, 526243, B01D 300

Patent

active

041265890

ABSTRACT:
A fluorocarbon polymer membrane having pendant sulfonamide groups is first treated with anion radicals and then hydrolyzed for conversion into a cation exchange membrane having carboxylic groups and sulfonic acid groups.

REFERENCES:
patent: 3969285 (1976-07-01), Grot
Journal of the American Chem. Society, 89 5311 (1967) Ji, et al., 5311-5312.

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