Porous or non-porous substrate coated with an immobilized polymeric composition having sulfonyl groups and hydrophilic functional groups and process
View Patent ↗A porous or non-porous polymeric substrate having its surface modified with an immobilized fluorocarbon such as perfluorocarbon, polymeric composition is provided. The immobilized fluorocarbon is formed from a monomer having formula: [T—SO 2 Y—SO 2 T′] − M + in which —T and T′ are identical or different and comprise an organic radical bearing at least one active polymerization function such as an unsaturation or a ring that can be opened; —M + comprises an inorganic cation. —Y comprises N or CQ in which Q comprises H, CN, F, SO 2 R 3 , substituted or unsubstituted C 1-20 alkyl, substituted or unsubstituted C 1-20 aryl, substituted or un-substituted C 1-20 alkylene, in which the substituent comprises one or more halogens, and in which the chain comprises one or more F, SO 2 R, aza, oxa, thia or dioxathia substituents; and —R 3 comprises F, substituted or unsubstituted C 1-20 alkyl, in which the substituted or unsubstituted C 1-20 aryl, substituted or unsubstituted C 1-20 alkylene, in which the substituent comprises one or more halogens.
1. An article formed from a substrate comprising a fluorine-containing polymer having its surface modified with an immobilized fluorocarbon polymeric composition having hydrophilic functional groups derived from at least one monomer of the formula:
[T—SO 2 Y—SO 2 T′]M +
wherein:
T and T′ are identical or different and each comprise a perfluorinated organic radical bearing at least one active polymerization function;
M + comprises an inorganic or organic cation;
Y comprises N or CQ;
Q comprises H, CN, F, SO 2 R 3 , perfluorinated C 1-20 alkyl, perfluorinated C 1-20 aryl, or perfluorinated C 1-20 alkylene, and
R 3 comprises perfluorinated C 1-20 alkyl, perfluorinated C 1-20 aryl, or perfluorinated C 1-20 alkylene.
2. The article of claim 1 wherein the immobilized fluorocarbon polymeric composition is cross-linked.
3. The article of claim 2 , wherein said monomer comprises a perfluorinated di(vinyl ether).
4. The article of claim 1 wherein the immobilized fluorocarbon polymeric composition is grafted.
5. The article of claim 4 wherein said monomer comprises a perfluorinated di(vinyl ether).
6. The article of any one of claims 1 , 2 and 4 wherein the substrate is non-porous and the article is non-porous.
7. The article of claim 6 wherein said monomer comprises a perfluorinated di(vinyl ether).
8. The article of claim 1 wherein the substrate is porous.
9. The article of claim 8 wherein said monomer comprises a perfluorinated di(vinyl ether).
10. The article of claim 1 wherein the substrate is non-porous.
11. The article of claim 10 wherein said monomer comprises a perfluorinated di(vinyl ether).
12. The article of claim 1 wherein said monomer comprises a perfluorinated di(vinyl ether).