Polymers of 2-ketopentafluoropropanesulfonic acid and related ac

Details Polymers of 2-ketopentafluoropropanesulfonic acid and related ac Polymers of 2-ketopentafluoropropanesulfonic acid and related ac

1979-01-18

1980-07-22

Lee, Lester L.

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

Synthetic resins

From ketone or ketene reactant

528408, 528417, C08G 226

Patent

active

042140706

ABSTRACT:
2-Ketopentafluoropropanesulfonic acid is obtained as a product of the reaction of sulfur trioxide and ethyl pentafluoroisopropenyl ether or by transesterification from corresponding esters. Similar sulfonic acids may be obtained by the latter process. The new compounds are useful as monomers for producing polymers, particularly moldable, dyeable, fluoropolymers, and as cationic initiators, e.g., for tetrahydrofuran polymerization.

REFERENCES:
patent: 3624039 (1971-11-01), Colomb, Jr. et al.
patent: 3892903 (1975-07-01), Dowbenko

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