Fluorocarbon polymeric compositions having hydrophilic functional groups and process
View Patent ↗A crosslinked fluorocarbon such as perfluorocarbon, polymeric composition is provided having hydrophilic functional groups, which is crosslinked with fluorinated such as perfluorinated crosslinking groups. Also provided is a branched fluorocarbon such as perfluorocarbon, polymeric composition having hydrophilic functional groups.
1. A crosslinked fluorocarbon polymeric composition having hydrophilic functional groups of the formula:
covalently bonded through the R f groups, each to a CY group of a fluorocarbon polymeric composition of the formula:
wherein A is a polymeric group derived from at least one fluorine-containing polymerizable monomer, n is an integer that can be 1 or greater than 1; m is an integer of at least 1 and Y is hydrogen or halogen wherein at least one Y is a fluorine; T is a carbonyl or sulfonyl group; R f is a C 1 -C 20 linear, cyclic or branched fluoroalkyl group optionally containing one or more oxygen, nitrogen, chlorine, phosphorous, hydrogen and/or sulfur atoms and/or one or more sulfonyl or carbonyl groups, or a sulfonyl or carbonyl-containing fluoropolymeric group, wherein the R f groups can be the same or different; R f ″ and R f ′″ can be the same or different and can be a C 1 -C 20 linear, cyclic or branched fluoroalkyl group optionally containing one or more oxygen, nitrogen, chlorine, phosphorous, hydrogen and/or sulfur atoms and/or one or more sulfonyl or carbonyl groups, or a sulfonyl or carbonyl-containing fluoropolymeric group, optionally connected to another chain of the fluorocarbon polymeric composition having hydrophilic functional groups; Z + is a proton or an organic or an inorganic cation and t can be 0 or 1.
2. The crosslinked fluorocarbon polymeric composition having hydrophilic functional groups of claim 1 wherein A is selected from the group consisting of vinyl fluoride, hexafluoropropylene, vinylidene fluoride, trifluoroethylene, chlorotrifluoroethylene, perfluoro(alkylvinyl ether) and tetrafluoroethylene.
3. A crosslinked fluorocarbon polymeric composition having hydrophilic functional groups of the formula:
covalently bonded through the R f groups each to a CY group of a fluorocarbon polymeric composition of the formula:
wherein A is a polymeric group derived from at least one fluorine-containing polymerizable monomer, n is an integer that can be 1 or greater than 1; m is an integer of at least 1 and Y is hydrogen or halogen wherein at least one Y is a fluorine; T is a carbonyl or sulfonyl group; R f is a C 1 -C 20 linear, cyclic or branched fluoroalkyl group optionally containing one or more oxygen, nitrogen, chlorine, phosphorous, hydrogen and/or sulfur atoms and/or one or more sulfonyl or carbonyl groups, or a sulfonyl or carbonyl-containing fluoropolymeric group, wherein the R f groups can be the same or different; Z + is a proton or an organic or an inorganic cation; t can be 0 or 1; R f ″ is a C 1 -C 20 linear, cyclic or branched fluoroalkyl radical optionally containing one or more oxygen, nitrogen, chlorine, phosphorous, hydrogen and/or sulfur atoms and/or one or more sulfonyl or carbonyl groups, or a sulfonyl or carbonyl-containing fluoropolymeric group and R f ′″ is a sulfonyl or carbonyl-containing fluoropolymeric group, optionally connected to another chain of the fluorocarbon polymeric composition having hydrophilic functional groups.
4. The crosslinked fluorocarbon polymeric composition having hydrophilic functional groups of claim 3 wherein A is selected from the group consisting of vinyl fluoride, hexafluoropropylene, vinylidene fluoride, trifluoroethylene, chlorotrifluoroethylene, perfluoro(alkylvinyl ether) and tetrafluoroethylene.