METHOD FOR PRODUCTION OF FLUOROCARBON POLYMERS WITH FUNCTIONAL SULFONYLFLUORIDE GROUPS Russian patent published in 1999 - IPC

Abstract RU 2138515 C1

FIELD: polymer production. SUBSTANCE: polymers are prepared by block copolymerization of tetrafluoroethylene with fluorocarbon vinyl ether of formula CF2=CFOCF2CF(CF3)OCF2CF2SO2F (I) in presence of perfluoroperoxide initiator. Method is distinguished by that copolymerization is carried out at 0-20 C while simultaneously replacing tetrafluoroethylene to conversion 12% with respect to ether I. EFFECT: accelerated process, prevented formation of injurious substances, and improved physico-chemical characteristics of polymer.

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RU 2 138 515 C1

Authors

Tikhonov E.N.

Dates

1999-09-27Published

1997-12-17Filed