摘要:
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 X1, X2, and X3 are each independently selected from H, F, Cl, a C1 to C4 alkyl group, and a C1 to C4 fluorinated alkyl group; R is a linking group; Z1 and Z2 are independently selected from F, CF3, and a perfluoroalkyl group; R1 and R2 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.
摘要:
A curable composition that includes an amorphous, peroxide-curable fluoropolymer having a first solubility parameter, a solvent having a second solubility parameter, and a peroxide. The amorphous, peroxide-curable fluoropolymer is present from 60 percent to 97.5 percent by weight versus the weight of the curable composition, and the solvent is present from 1 percent to 39 percent by weight versus the weight of the curable composition. The absolute value of the first solubility parameter minus the second solubility parameter is less than or equal to 8.2 (MPa)1/2. The solvent may have a solubility parameter in a range from 9.6 (MPa)1/2 to 26 (MPa)1/2. Methods of making a cured fluoroelastomer from the curable composition are also disclosed.
摘要:
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, C1, 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.
摘要:
There are provided microemulsions derived from compositions containing oligomeric fluorosulfinic compounds and/or ethylenically unsaturated, polymerizable monomeric fluorosulfinic compounds and to their uses in (co)polymerization processes in aqueous emulsion of fluorinated monomers.
摘要:
There is provided a comprising an amorphous peroxide curable fluoropolymer comprising an iodine, bromine or chlorine containing cure site, an organic peroxide with a 10-hour half life temperature below 90°C, and a coagent, where the amorphous fluoropolymer has a storage modulus at 25°C and 0.1 rad/s of less than or equal to 300 kPa, and also where the fluoropolymer 90% cure time as measured by sealed torsion shear rotorless curemeter in ASTM D5289-07 is less than 30 minutes at 110°C. There is also provided a fluoroelastomer preparable by curing such composition. There is further provided a cure in place process using such composition to create a cure in place article and cure in place articles from such process.