Process for the fluorination of polymers, and perfluorinated ion

Details Process for the fluorination of polymers, and perfluorinated ion Process for the fluorination of polymers, and perfluorinated ion

1983-11-08

1985-06-11

Schofer, Joseph L.

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

Synthetic resins

Ion-exchange polymer or process of preparing

525356, C08F 820

Patent

active

045229520

ABSTRACT:
The present invention relates to a process for preparation of a highly fluorinated polymer by converting a polymer containing the recurring unit R--S'--X.sub.m, in which R denotes a base unit forming the matrix, X denotes identical or different functional groups, with the exception of halogen, and S' is an aromatic or araliphatic radical with m+1 free valencies, m being at least 1, into a highly fluorinated polymer by fluorination with elementary fluorine. The process is particularly useful for the preparation of cation exchangers, such as those which contain the unit ##STR1## in which C.sub.6 F.sub.10 represents a perfluorinated cyclohexyl ring.

REFERENCES:
patent: 3884885 (1975-05-01), Grot
patent: 4076916 (1978-02-01), Lagow
patent: 4296151 (1981-10-01), Boultinghouse

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