Fluoropolymers having pendant amidoxime or amidrazone structures
Assignee3M Innovative Properties Company
InventorsWerner Grootaert, Klaus Hintzer, Kai Lochhaas, Franz Maerz
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Abstract
A fluoropolymer having pendant amidoxime groups, pendant amidrazone groups, or combinations thereof is provided. Also provided are methods of making such fluoropolymers, and compositions and articles containing such fluoropolymers.
Claims20
A fluoropolymer comprising first interpolymerized cure site units, wherein the cure site units have at least one pendant amidoxime group, pendant amidrazone group, or combinations thereof.
A method of making a fluoropolymer having interpolymerized cure site units, wherein the cure site units have at least one pendant amidoxime group, pendant amidrazone group, or combinations thereof, the method comprising:
- (i) providing a fluoropolymer having one or more interpolymerized units having a reactive group;
- and
- (ii) converting at least one of the reactive group(s) into a pendant amidoxime and/or pendant amidrazone group.
A method of making a fluoropolymer having at least one interpolymerized cure site unit, wherein the cure site unit has at least one pendant amidoxime group, pendant amidrazone group, or combinations thereof, the method comprising:
- (i) providing a cure site monomer having pendant amidoxime group(s), pendant amidrazone group(s), a salt thereof, or combinations thereof;
- and
- (ii) copolymerizing the cure site monomer with at least one monomer selected from tetrafluoroethylene, chlorotrifluoroethylene, CF2═CF—Rf1, CF2═CF—O—Rf2, CF2═CF—CFX—O—Rf2, and CH2═CR2, wherein Rf1 is a perhaloalkyl, Rf2 is perhaloalkyl or a perhaloalkoxyalkyl, X is F or Rf2, and each R is independently selected from the group consisting of hydrogen, a halogen, or an aliphatic group;
- wherein the aliphatic group(s) may have one or more halogen substituent(s).
Dependencies are inferred from the claim text.