Method of preparing resins containing sulfonic acid functionalit

Details Method of preparing resins containing sulfonic acid functionalit Method of preparing resins containing sulfonic acid functionalit

1975-01-15

1976-03-16

Wong, Jr., Harry

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 793R, 260 22R, C08F 806

Patent

active

039445070

ABSTRACT:
Resins containing sulfonic acid functionality may be prepared by reacting a chloromethylated polymer matrix with thiourea and then oxidizing the resulting isothiouronium salt to the sulfonic acid in the presence of hydrogen peroxide, either directly or with the intermediate isolation of the thiol.

REFERENCES:
patent: 2559585 (1946-02-01), Beck et al.
patent: 2868738 (1959-01-01), Hwa
patent: 3670002 (1972-06-01), Sheng et al.

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