Fluorosulfates of hexafluoroisobutylene and its higher homologs and their derivatives
OwnerRichard Fernandez, Weiming Qui +2inventors
InventorsRichard Fernandez, Weiming Qui, Paul Resnick, Robert Wheland
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Abstract
Hexafluoroisobutylene and its higher homologs are easily reacted with SO3 to give fluorosulfates of the formula CH2═C(R)CF2OSO2F, wherein R is a linear, branched or cyclic fluoroalkyl group comprised of 1 to 10 carbon atoms and may contain ether oxygen. These compounds react under mild conditions with many nucleophiles to give CH2═C(R)CF2X, where X is derived from the nucleophile. This reaction provides a route to many substituted hexafluoroisobutylenes, which copolymerize easily with other fluoro- and hydrocarbon monomers such as vinylidene fluoride and ethylene.
Claims12
Copolymers of CH2═C(R)CF2X, wherein R is a linear, branched, or cyclic fluoroalkyl group comprised of 1 to 10 carbon atoms and may contain ether oxygen, and X is selected from the group consisting of hydride, halides except fluoride, cyanide, alkoxides, fluoroalkoxides, and perfluoroalkoxides, aryl oxides, fluoroaryloxides, and perfluoroaryloxides, mercaptides, fluoromercaptides, perfluoromercaptides, secondary amines which may be fluorinated, azide, cyanate, isocyanate, thiocyanate, hydroxyalkoxides, haloalkoxides, epoxy alkoxides, cyanoalkoxides, ester alkoxides and thiolmercaptides, and at least one other monomer.
Copolymers of CH2═C(R)CF2X, wherein R is a linear, branched, or cyclic fluoroalkyl group comprised of 1 to 10 carbon atoms and may contain ether oxygen, and X is selected from the group consisting of hydride, halides except fluoride, alkoxides, fluoroalkoxides, and perfluoroalkoxides, aryloxides, mercaptides, fluoromercaptides, perfluoromercaptides, secondary amines which may be fluorinated, azide, hydroxyalkoxides, ester alkoxides, and at least one other monomer.
Copolymers of CF2═C(R)CH2X, wherein R is a linear, branched, or cyclic fluoroalkyl group comprised of 1 to 10 carbon atoms and may contain ether oxygen, and X is selected from the group consisting of hydride, halides except fluoride, cyanide, alkoxides, fluoroalkoxides, and perfluoroalkoxides, aryl oxides, fluoroaryloxides, and perfluoroaryloxides, mercaptides, fluoromercaptides, perfluoromercaptides, secondary amines which may be fluorinated, azide, cyanate, isocyanate, thiocyanate, hydroxyalkoxides, haloalkoxides, epoxy alkoxides, cyanoalkoxides, ester alkoxides and thiolmercaptides, and at least one other monomer.
Copolymers of CF2═C(CF2X)CH2X′, wherein X and X′ are independently selected from the group consisting of hydride, halides except fluoride, cyanide, alkoxides, fluoroalkoxides, and perfluoroalkoxides, aryl oxides, fluoroaryloxides, and perfluoroaryloxides, mercaptides, fluoromercaptides, perfluoromercaptides, secondary amines which may be fluorinated, azide, cyanate, isocyanate, thiocyanate, hydroxyalkoxides, haloalkoxides, epoxy alkoxides, cyanoalkoxides, ester, alkoxides, and thiolmercaptides, and at least one other monomer.
Dependencies are inferred from the claim text.