Abstract: This fluorine-containing ether compound is a fluorine-containing ether compound represented by the following formula: R1—CH2—R2—(CH2—R3—CH2—R2)h—CH2—R4 (z represents 1 or 2. R2 is a perfluoropolyether chain. R1 is Formula (2). R4 is an organic group having 3 to 35 carbon atoms and having 1 to 3 polar groups. R3 is Formula (4).

Abstract: A fluorine-containing ether compound represented by the following formula. R1—CH2—R2a—CH2—R3a—CH2—R2b—CH2—R3b—CH2—R2c—CH2—R3c—CH2—R2d—CH2—R4 (R2a, R2b, R2c and R2d are each a perfluoropolyether chain, R3a, R3b, and R3c are each a divalent linking group having one or more polar groups, at least one of R3a, R3b, and R3c is represented by —OCH2CH(OH)CH2O—, and R1 and R4 are each a terminal group having 1 to 50 carbon atoms and one or more polar groups, and may be the same as or different from each other).

Abstract: A fluorine-containing ether compound represented by the following formula: R1-[B]-[A]-O—CH2—R2—CH2—O-[C]-[D]-R3 (R1 is an organic group having 7 to 18 carbon atoms, including a group in which a carbonyl carbon atom or nitrogen atom in an amide bond and an aromatic hydrocarbon are directly bonded; R2 is a perfluoropolyether chain; R3 is Formula (2); X1 is a hydrogen atom or an organic group having 7 to 18 carbon atoms, including a group in which a carbonyl carbon atom or nitrogen atom in an amide bond and an aromatic hydrocarbon are directly bonded; [A] is Formula (3-1); [B] is Formula (3-2); [C] is Formula (4-1); [D] is Formula (4-2); and the number of hydroxyl groups in Formula (1) is 3 or more).

Abstract: A fluorine-containing ether compound is provided which is represented by the following formula: R1—R2—CH2—R3a—CH2—R4a—CH2—R3b—CH2—R4b—CH2—R3c—CH2—R5—R6 (R3a, R3b, and R3c are perfluoropolyether chains; R2, R4a, R4b, and R5 are a divalent linking group having at least one selected from the group consisting of a hydroxyl group, an amino group, a carboxy group, and a sulfo group; R2 has an oxygen atom at an end that is bonded to R1; R5 has an oxygen atom at an end that is bonded to R6; R1 and R6 are an organic group having 1 to 50 carbon atoms or a hydrogen atom, and at least one of them is a group in which a cyano group is bonded to a carbon atom of an organic group having 1 to 8 carbon atoms).

Abstract: The present invention provides a fluorine-containing ether compound that can form a lubricating layer which can increase chemical substance resistance of a magnetic recording medium even if the thickness is thin, and can be suitably used as a material for a lubricant for a magnetic recording medium. The fluorine-containing ether compound is represented by the following formula. R1—CH2—R2—CH2—OCH2—CHR3—CH2O—CH2—R4—CH2—R5 (in the formula, R2 and R4 are a perfluoropolyether chain; R1 and R5 are terminal groups which contain two or three hydroxyl groups, and in which respective hydroxyl groups are bonded to different carbon atoms, and carbon atoms to which the hydroxyl groups are bonded are bonded to each other via a linking group containing a carbon atom to which no hydroxyl group is bonded; R3 is represented by the following formula; and —(CH2)a—OH (a is an integer of 2 to 8)).

Abstract: There is provided a fluorine-containing ether compound represented by the following formula: R1—R2—CH2—R3[—CH2—R4—CH2R3?]n—CH2—R5—R6 (n is 1 or 2; R3 and R3? are a perfluoropolyether chain; R4 is a divalent linking group having one polar group; R2 and R5 are a divalent linking group having one or more polar groups; R2 has an oxygen atom at an end that is bonded to R1; R5 has an oxygen atom at an end that is bonded to R6; R1 and R6 in end group bonded to an oxygen atom at an end of R2 or R5; and R1 and R6 are an organic group having 1 to 50 carbon atoms, and at least one of them is a group in which a carbonyl carbon atom or nitrogen atom constituting an amide bond is bonded to a carbon atom of an organic group having 1 to 8 carbon atoms).

Abstract: The present invention provides a fluorine-containing ether compound represented by the following formula. R1—CH2—R2—CH2—R3—CH2—R4—CH2—R5—CH2—R6—CH2—R7 (In Formula (1), R2, R4, and R6 are perfluoropolyether chains, R3 is Formula (2), R5 is Formula (3), and R1 and R7 are each independently a terminal group having two or three polar groups, in which individual polar groups are bound to different carbon atoms and the carbon atoms to which the polar groups are bound are bound to each other via a linking group containing a carbon atom to which no polar group is bound).

Abstract: A fluorine-containing ether compound represented by the following formula.

Abstract: A fluorine-containing ether compound represented by R1—[B]-[A]-CH2—R2[—CH2—R3—CH2—R2], CH2—[C]-[D]-R4 ([A] is Formula (2-1), [B] is Formula (2-2), [C] is Formula (3-1), [D] is Formula (3-2), R4 is Formula (4), R1 is a terminal group that may be the same as or different from R4, z is 1 or 2, and R2 is a perfluoropolyether chain. R3 is Formula (5)).

Abstract: A fluorine-containing ether compound represented by the following formula.

Abstract: Provided is a fluorine-containing ether compound represented by the following formula. R1—O—R2—CH2—R3—CH2—R4—O—R5 (R3 represents a perfluoropolyether chain, R2 and R4 represent a divalent linking group having one or more polar groups, R1 and R5 represent Formula (2), Formula (3), or a hydrogen atom, and at least one of R1 or R5 is represented by Formula (2) or (3), in Formula (2), X1 represents an alkylene group having 1 to 30 carbon atoms, and Y and Z represent an aliphatic group having 1 to 30 carbon atoms, in Formula (3), X2 represents an alkylene group having 1 to 30 carbon atoms, and A and B represent an aliphatic group having 1 to 30 carbon atoms.

Abstract: A fluorine-containing ether compound represented by the following formula.

Abstract: A fluorine-containing ether compound represented by the following formula.

Abstract: This fluorine-containing ether compound is represented by formula (1) shown below. R1—CH2—R2—CH2—R3??(1) In formula (1), R2 is a perfluoropolyether chain represented by a formula (2) shown below. R1 is a terminal group that is bonded to R2 via a CH2 group, and is represented by a formula (3) shown below. R3 is bonded to R2 via a CH2 group, is a terminal group having at least one hydroxyl group, and may be the same as, or different from, R1. —(CF2)p-1—O—((CF2)pO)q—(CF2)p-1—??(2) In formula (2), p represents an integer of 2 to 3, and q indicates the average polymerization degree and is a number within a range from 1 to 20. —O(CH2—CH(OH)—CH2—O)2—CH2—(CH2)n—OH??(3) In formula (3), n represents an integer of 1 to 8.

Abstract: A fluorine-containing ether compound is provided which is represented by the following formula: R1—R2—CH2—R3a—CH2—R4a—CH2—R3b—CH2—R4b—CH2—R3c—CH2—R5—R6 (R3a, R3b, and R3c are perfluoropolyether chains; R2, R4a, R4b, and R5 are a divalent linking group having at least one selected from the group consisting of a hydroxyl group, an amino group, a carboxy group, and a sulfo group; R2 has an oxygen atom at an end that is bonded to R1; R5 has an oxygen atom at an end that is bonded to R6; R1 and R6 are an organic group having 1 to 50 carbon atoms or a hydrogen atom, and at least one of them is a group in which a cyano group is bonded to a carbon atom of an organic group having 1 to 8 carbon atoms).

Abstract: A fluorine-containing ether compound represented by the following formula: R1-[B]-[A]-O—CH2—R2—CH2—O-[C]-[D]-R3 (R1 is an organic group having 7 to 18 carbon atoms, including a group in which a carbonyl carbon atom or nitrogen atom in an amide bond and an aromatic hydrocarbon are directly bonded; R2 is a perfluoropolyether chain; R3 is Formula (2); X1 is a hydrogen atom or an organic group having 7 to 18 carbon atoms, including a group in which a carbonyl carbon atom or nitrogen atom in an amide bond and an aromatic hydrocarbon are directly bonded; [A] is Formula (3-1); [B] is Formula (3-2); [C] is Formula (4-1); [D] is Formula (4-2); and the number of hydroxyl groups in Formula (1) is 3 or more).

Abstract: To provide a method capable of producing a fluorinated polyether with a number-average molecular weight as theoretically calculated from a number-average molecular weight of a raw material polyether compound in high yield. The method for producing a fluorinated polyether, characterized in including a step (1) of introducing the raw material compound represented by Formula (X) having a Mw/Mn representing a molecular weight distribution of 1.30 or smaller, an inert gas, a fluorine gas, and a solvent into a reactor to fluorinate the raw material compound. R4—O—(R1—O)x—R5??(X) wherein R1 represents a divalent hydrocarbon group having 2 to 5 carbon atoms; R4 and R5 each independently represent a protecting group for a hydroxyl group; x represents an average degree of polymerization and is a real number of 2.7 to 15.

Abstract: There is provided a fluorine-containing ether compound represented by following formula: R1—R2—CH2—R3[—CH2—R4—CH2R3?]n—CH2—R5—R6 (n is 1 or 2; R3 and R3? are a perfluoropolyether chain; R4 is a divalent linking group having one polar group; R2 and R5 are a divalent linking group having one or more polar groups; R2 has an oxygen atom at an end that is bonded to R1; R5 has an oxygen atom at an end that is bonded to R6; R1 and R6 in end group bonded to an oxygen atom at an end of R2 or R5; and R1 and R6 are an organic group having 1 to 50 carbon atoms, and at least one of them is a group in which a carbonyl carbon atom or nitrogen atom constituting an amide bond is bonded to a carbon atom of an organic group having 1 to 8 carbon atoms).

Abstract: A fluorine-containing ether compound represented by the following formula (1) is provided. R2—CH2—R1—CH2OCH2CH(OH)—(CH2)n—CH(OH)CH2OCH2—R1—CH2—R2??(1) (in the formula (1), n is an integer of 2 to 6, R1 is a perfluoropolyether chain, R2 is —OCH2CH(OH)CH2O(CH2)mOH (m in the formula is an integer of 2 to 4)).

Abstract: The present invention provides a fluorine-containing ether compound that can form a lubricating layer which can increase chemical substance resistance of a magnetic recording medium even if the thickness is thin, and can be suitably used as a material for a lubricant for a magnetic recording medium. The fluorine-containing ether compound is represented by the following formula. R1—CH2—R2—CH2—OCH2—CHR3—CH2O—CH2—R4—CH2—R5 (in the formula, R2 and R4 are a perfluoropolyether chain; R1 and R5 are terminal groups which contain two or three hydroxyl groups, and in which respective hydroxyl groups are bonded to different carbon atoms, and carbon atoms to which the hydroxyl groups are bonded are bonded to each other via a linking group containing a carbon atom to which no hydroxyl group is bonded; R3 is represented by the following formula; and —(CH2)a—OH (a is an integer of 2 to 8)).