- SYNTHESES OF PERFLUOROALKYL N-POLYETHOXYLATED AMIDES
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Monodisperse perfluoroalkyl N-polyethoxylated amides, CnF2n+1CONH(CH2CH2O)mH, with n = 6, 7, 8 and 9 and m = 2, 3, and 4 are potential nonionic fluorinated surfactants.The syntheses of these comounds are described.
- Afzal, Jalees,Fung, B. M.,O'Rear, Edgar A.
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- Ozonolysis of alkenes and studies of reactions of polyfunctional compounds: LXV.* Ozonolysis of perfluoro-1-octene in Freon-113
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Ozonization of perfluoro-1-octene in Freon-113 yields the corresponding ozonide whose catalytic hydrogenation over Pd/C or hydride reduction leads to formation of perfluoroheptanoic acid; the reduction with lithium aluminum hydride gives 2,2,3,3,4,4,5,5,6,6,7,7,7-tridecafluoro-1-heptanol. Ozonization of perfluoro-1-octene in Freon-113 containing excess (≥3 equiv) alcohol affords the corresponding perfluoroheptanoic acid ester.
- Odinokov,Akhmetova,Bazunova,Savchenko,Paramonov,Khalilov
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- FLUORINATED IMIDOYLAMIDINES VULCANIZING AGENTS
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The invention provides a compound and, tautomeric forms thereof having the formula (I): wherein Rf1 is selected from the group consisting of hydrogen, a straight chain, branched secondary or branched tertiary C1-C20 perfluoroalkyl group optionally containing ether or thioether linkages and C1-C10 perfluoroalicyclic group optionally containing ether or thioether groups; Rf2 is a straight or branched C1-C20 perfluoroalkylene group optionally substituted with ether and thiother linkages; and X is selected from the group consisting of fluorine and formula (II). . The invention also provides perfluoroelastomeric compositions cured with the perfluoroimidoylamidines of the invention as well as combinations of perfluoroimidoylamidines and other curing agents.
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(2008/06/13)
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