Fluorine-containing polymer comprising a sulfinate-containing molecule
Described herein is a composition having a fluoropolymer derived from the polymerization of a monomer and a sulfinate-containing molecule, wherein the sulfinate-containing molecule is selected from the group consisting of Formula (I), Formula (II); and combinations thereof, wherein X 1 , X 2 , and X 3 are each independently selected from H, F, Cl, a C 1 to C 4 alkyl group, and a C 1 to C 4 fluorinated alkyl group; R is a linking group; Z 1 and Z 2 are independently selected from F, CF 3 , and a perfluoroalkyl group; R 1 and R 2 are end-groups; p is 0 or 1; m is at least 1; and M is a cation. Also disclosed are methods of making and articles thereof.
1. A composition comprising:
a fluorine-containing polymer comprising an end-group having a structure selected from:
and combinations thereof;
wherein X 1 , X 2 , and X 3 are each independently selected from H, F, Cl, a C 1 to C 4 alkyl group, and a C 1 to C 4 fluorinated alkyl group; R 7 is a linking group comprising at least 2 or more catenary atoms; and Z 1 and Z 2 are independently selected from F, CF 3 , and a perfluoroalkyl group, wherein the fluorine-containing polymer is partially fluorinated and wherein the fluorine-containing polymer is derived from the polymerization of a monomer and a sulfinate-containing molecule, wherein the sulfinate-containing molecule is selected from the group consisting of:
and
(c) combinations thereof,
wherein X 1 , X 2 , and X 3 are each independently selected from H, F, Cl, a C 1 to C 4 alkyl group, and a C 1 to C 4 fluorinated alkyl group; R is a linking group; Z 1 and Z 2 are independently selected from F, CF 3 , and a perfluoroalkyl group; R 1 and R 2 are end-groups; p is 0 or 1; m is at least 2; and M is a cation.
2. The composition of claim 1 , wherein the fluorine-containing polymer is crystalline.
3. The composition of claim 1 , wherein the fluorine-containing polymer is amorphous.
4. The composition of claim 1 , wherein the fluorine-containing polymer has an long chain branching index of greater than 0.2.
5. The composition according to claim 1 , wherein the end-group of the fluorine-containing polymer is selected from:
6. The polymer of claim 1 , wherein the fluorine-containing polymer comprises interpolymerized units of a monomer, wherein the monomer is selected from: dienes, halogenated alkenes, a fluoroalkyl substituted ethylene, allyl iodide, fluorinated alkyl vinyl ethers, fluorinated alkoxy vinyl ethers, olefins, acrylates, styrene, vinyl ethers, and combinations thereof.
7. The polymer of claim 6 , wherein the monomer is selected from: tetrafluoroethylene, hexafluoropropylene, trifluoroethylene, vinylidene fluoride, vinyl fluoride, bromotrifluoroethylene, chlorotrifluoroethylene, CF 3 CH═CF 2 , C 4 F 9 CH═CH 2 , CF 2 ═CHBr, CF 2 ═CFBr, CH 2 ═CHCH 2 Br, CF 2 ═CFCF 2 Br, CH 2 ═CHCF 2 CF 2 Br, and combinations thereof.
8. The polymer of claim 6 , wherein the monomer is vinylidene fluoride.
9. The polymer of claim 6 , wherein at least one of X 1 , X 2 , and X 3 is H.
10. The polymer according to claim 1 , wherein the end-group is selected from:
11. The composition according to claim 1 , wherein the fluorine-containing polymer is melt-processible.
12. An article comprising the composition of claim 1 .
13. The article of claim 12 , wherein the article is a gasket, a seal, a film, or a hose.