Described herein are three methods for making halogenated fluorinated ether-containing compounds using a fluorinated olefin or hexafluoropropylene oxide.

Described herein are three methods for making halogenated fluorinated ether-containing compounds using a fluorinated olefin or hexafluoropropylene oxide.

The present invention relates to novel compounds containing fluorinated end groups, to the use thereof as surface-active substances, and to compositions comprising these compounds.

To provide a fluorinated ether compound, a fluorinated ether composition and a coating liquid, whereby it is possible to form a surface-treated layer which has high initial water/oil repellency and which is excellent in abrasion resistance and fingerprint stain removability, and a substrate having a surface-treated layer and a method for its production. A fluorinated ether compound which has a poly(oxyperfluoroalkylene) chain () having a C.sub.4 oxyperfluoroalkylene unit () and an oxyperfluoroalkylene unit () other than the unit () and which has a hydrolysable silyl group on at least one terminal of the poly(oxyperfluoroalkylene) chain () via a linking group.

To provide a fluorinated ether compound, a fluorinated ether composition and a coating liquid, capable of forming a surface layer which has high initial water/oil repellency and which is excellent in abrasion resistance, fingerprint stain removability, lubricity and uniformity, as well as a substrate having such a surface layer, and a method for its production. A substrate having a surface layer formed of a fluorinated ether compound represented by D.sup.1-R.sup.f1OCH.sub.2(C.sub.mF.sub.2mO).sub.n-A (D.sup.1 is CF.sub.3 or CF.sub.3O; R.sup.f1 is a C.sub.1-20 fluoroalkylene group containing at least one hydrogen atom, etc.; m is 1 to 6; n is 1 to 200; A is C.sub.aF.sub.2aBC.sub.bH.sub.2bSiL.sub.cR.sub.3-c; B is C.sub.gH.sub.2gO, C.sub.hH.sub.2hOC(O)NH, etc.; L is a hydrolysable group; R is a monovalent hydrocarbon group, etc.; a is 1 to 5; b is 1 to 10; c is 1 to 3; g is 1 to 5; and h is 1 to 5) or a fluorinated ether composition containing the compound; and a method for its production.

A molecular design principle utilizes a steric hindrance effect to tune the solvation structures of Li+ ions. By substituting the methoxy groups on DME with larger-sized ethoxy groups, the resulting 1,2-diethoxyethane (DEE) has weaker solvation ability and consequently more anion-rich inner solvation shells, both of which enhance interfacial stability at cathode and anode. According to certain additional aspects, the present embodiments relate to a family of fluorinated-1,2-diethyoxyethane (fluorinated-DEE) molecules that are readily synthesized in large scales to use as the electrolyte solvents. Selected positions on 1,2-diethyoxyethane (DEE, distinct from the diethyl ether are functionalized with various numbers of fluorine atoms through iterative tuning, to reach a balance between CE, oxidative stability, and ionic conduction. Paired with 1.2 M lithium bis(fluorosulfonyl)imide (LiFSI), these fluorinated-DEE-based, single-salt single-solvent electrolytes are thoroughly characterized. In addition, a family of fluorinated ethyl methyl carbonates are designed and synthesized. Different numbers of F atoms are finely tuned to yield monofluoroethyl methyl carbonate (F1EMC), difluoroethyl methyl carbonate (F2EMC) and trifluoroethyl methyl carbonate (F3EMC). The cycling behavior of several types of lithium-ion pouch cells were systematically investigated to understand the impact of fluorination degree.

A fluorine-containing ether compound represented by the following formula: R.sup.1R.sup.2CH.sub.2R.sup.3[CH.sub.2R.sup.4CH.sub.2R.sup.3].sub.xCH.sub.2R.sup.5R.sup.6 (R.sup.1 and R.sup.6 are an organic group having 1 to 50 carbon atoms; R.sup.2 is Formula (2-1) or (2-2); R.sup.5 is Formula (2-3) or (2-4); R.sup.3 is a perfluoropolyether chain; R.sup.4 is Formula (3-1) or (3-2); and x is 0 to 2).

##STR00001##

The present invention provides for an amphiphilic molecule having a profluorinated alkyl-methyloligoethyleneoxide structure. The present invention also provides for an electrolyte composition comprising an amphiphilic molecule of the present invention, an electrolyte solvent, and a lithium salt.

A liquid composition comprising one or more compound of formula (I): CFHXCF.sub.2OROCF.sub.2CFHX (I), one or more compound of formula (II): CFHXCF.sub.2OROH (II) wherein: R in formulas (I) and (II) is independently selected from C2-C10 divalent linear or branched alkyl, optionally including a cycle, an aromatic ring and/or oxygen heteroatoms engaged in ether bonds, X is selected from halogens, H, Rf, wherein Rf is selected from: a C1-C8 fully or partially fluorinated linear or branched alkyl optionally including a cycle, ora C1-C3 fully or partially fluorinated alkoxy, the two instances of X in formula (I) being the same or different, preferably being the same, the amount of the one or more compounds of formula (II) is from 0.002 to 5% by weight of the one or more compounds of formula (I).

The present invention relates to a method for exchanging heat with an object said method comprising using a heat transfer fluid wherein said heat transfer fluid comprises one or more chemical compounds having the general formula: (I) wherein: R.sub.1, R.sub.2, R.sub.3, R.sub.4 can be the same or different, linear or branched, partially fluorinated alkyl groups having a C1-C6 carbon chain. ##STR00001##