WO2017187775A1 - 含フッ素エーテル化合物、コーティング液、物品および新規化合物 - Google Patents
含フッ素エーテル化合物、コーティング液、物品および新規化合物 Download PDFInfo
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- WO2017187775A1 WO2017187775A1 PCT/JP2017/007897 JP2017007897W WO2017187775A1 WO 2017187775 A1 WO2017187775 A1 WO 2017187775A1 JP 2017007897 W JP2017007897 W JP 2017007897W WO 2017187775 A1 WO2017187775 A1 WO 2017187775A1
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- Prior art keywords
- compound
- group
- fluorine
- carbon atoms
- ether compound
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- 239000000600 sorbitol Substances 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 229940031439 squalene Drugs 0.000 description 1
- TUHBEKDERLKLEC-UHFFFAOYSA-N squalene Natural products CC(=CCCC(=CCCC(=CCCC=C(/C)CCC=C(/C)CC=C(C)C)C)C)C TUHBEKDERLKLEC-UHFFFAOYSA-N 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- IAHFWCOBPZCAEA-UHFFFAOYSA-N succinonitrile Chemical compound N#CCCC#N IAHFWCOBPZCAEA-UHFFFAOYSA-N 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 238000010896 thin film analysis Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- ZDHXKXAHOVTTAH-UHFFFAOYSA-N trichlorosilane Chemical compound Cl[SiH](Cl)Cl ZDHXKXAHOVTTAH-UHFFFAOYSA-N 0.000 description 1
- 239000005052 trichlorosilane Substances 0.000 description 1
- QQQSFSZALRVCSZ-UHFFFAOYSA-N triethoxysilane Chemical compound CCO[SiH](OCC)OCC QQQSFSZALRVCSZ-UHFFFAOYSA-N 0.000 description 1
- QXJQHYBHAIHNGG-UHFFFAOYSA-N trimethylolethane Chemical compound OCC(C)(CO)CO QXJQHYBHAIHNGG-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C211/00—Compounds containing amino groups bound to a carbon skeleton
- C07C211/01—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to acyclic carbon atoms
- C07C211/20—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to acyclic carbon atoms of an acyclic unsaturated carbon skeleton
- C07C211/22—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to acyclic carbon atoms of an acyclic unsaturated carbon skeleton containing at least two amino groups bound to the carbon skeleton
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- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C255/00—Carboxylic acid nitriles
- C07C255/01—Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms
- C07C255/06—Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms of an acyclic and unsaturated carbon skeleton
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- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C255/00—Carboxylic acid nitriles
- C07C255/01—Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms
- C07C255/06—Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms of an acyclic and unsaturated carbon skeleton
- C07C255/07—Mononitriles
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
- C07C303/26—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of esters of sulfonic acids
- C07C303/30—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of esters of sulfonic acids by reactions not involving the formation of esterified sulfo groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C309/00—Sulfonic acids; Halides, esters, or anhydrides thereof
- C07C309/63—Esters of sulfonic acids
- C07C309/64—Esters of sulfonic acids having sulfur atoms of esterified sulfo groups bound to acyclic carbon atoms
- C07C309/68—Esters of sulfonic acids having sulfur atoms of esterified sulfo groups bound to acyclic carbon atoms of a carbon skeleton substituted by singly-bound oxygen atoms
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- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
- C07C41/01—Preparation of ethers
- C07C41/18—Preparation of ethers by reactions not forming ether-oxygen bonds
- C07C41/30—Preparation of ethers by reactions not forming ether-oxygen bonds by increasing the number of carbon atoms, e.g. by oligomerisation
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- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C43/00—Ethers; Compounds having groups, groups or groups
- C07C43/02—Ethers
- C07C43/03—Ethers having all ether-oxygen atoms bound to acyclic carbon atoms
- C07C43/14—Unsaturated ethers
- C07C43/17—Unsaturated ethers containing halogen
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- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C43/00—Ethers; Compounds having groups, groups or groups
- C07C43/02—Ethers
- C07C43/03—Ethers having all ether-oxygen atoms bound to acyclic carbon atoms
- C07C43/14—Unsaturated ethers
- C07C43/178—Unsaturated ethers containing hydroxy or O-metal groups
- C07C43/1785—Unsaturated ethers containing hydroxy or O-metal groups having more than one ether bound
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- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/18—Compounds having one or more C—Si linkages as well as one or more C—O—Si linkages
- C07F7/1804—Compounds having Si-O-C linkages
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- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/18—Compounds having one or more C—Si linkages as well as one or more C—O—Si linkages
- C07F7/1804—Compounds having Si-O-C linkages
- C07F7/1872—Preparation; Treatments not provided for in C07F7/20
- C07F7/1876—Preparation; Treatments not provided for in C07F7/20 by reactions involving the formation of Si-C linkages
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/002—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from unsaturated compounds
- C08G65/005—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from unsaturated compounds containing halogens
- C08G65/007—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from unsaturated compounds containing halogens containing fluorine
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/32—Polymers modified by chemical after-treatment
- C08G65/321—Polymers modified by chemical after-treatment with inorganic compounds
- C08G65/323—Polymers modified by chemical after-treatment with inorganic compounds containing halogens
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/32—Polymers modified by chemical after-treatment
- C08G65/329—Polymers modified by chemical after-treatment with organic compounds
- C08G65/336—Polymers modified by chemical after-treatment with organic compounds containing silicon
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/42—Block-or graft-polymers containing polysiloxane sequences
- C08G77/46—Block-or graft-polymers containing polysiloxane sequences containing polyether sequences
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D171/00—Coating compositions based on polyethers obtained by reactions forming an ether link in the main chain; Coating compositions based on derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
- C09D183/08—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/10—Block or graft copolymers containing polysiloxane sequences
- C09D183/12—Block or graft copolymers containing polysiloxane sequences containing polyether sequences
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/12—Organic material
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/24—Vacuum evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/60—Deposition of organic layers from vapour phase
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
- B05D5/083—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface involving the use of fluoropolymers
Definitions
- the present invention relates to a fluorine-containing ether compound, a coating liquid, an article, and a novel compound.
- the fluorine-containing compound exhibits high lubricity, water / oil repellency, etc.
- it is preferably used as a surface treatment agent.
- the surface treatment agent imparts water and oil repellency to the surface of the base material, it becomes easy to wipe off the dirt on the surface of the base material, and the dirt removability is improved.
- a fluorine-containing ether compound having a poly (oxyperfluoroalkylene) chain in which an ether bond (—O—) is present in the middle of the perfluoroalkyl chain is particularly excellent in removal of dirt such as oils and fats.
- the surface-treating agent containing the fluorine-containing ether compound has a performance (water resistance) in which water and oil repellency is hardly lowered even when repeatedly rubbed with a finger, and a performance that can easily remove a fingerprint attached to the surface by wiping (fingerprint stain).
- a performance water resistance
- it is used as a surface treatment agent for a member constituting a surface touched by a finger of a touch panel.
- a hydrolyzable silyl group is introduced at the end of the fluorine-containing ether compound, and the fluorine-containing ether compound and the substrate are chemically bonded. You can do it.
- a fluorine-containing ether compound for the purpose of forming a surface layer with excellent friction resistance three hydrolyzable silyl groups are introduced into each of both ends of the fluorine-containing ether compound via a branched structure of pentaerythritol.
- Patent Document 1 A fluorine-containing ether compound has been proposed (Patent Document 1).
- the fluorine-containing ether compound described in Patent Document 1 has the following problems. -Both ends of the fluorine-containing ether compound are immobilized by the hydrolyzable silyl groups at both ends of the fluorine-containing ether compound reacting with the base material or reacting between molecules. Therefore, the lubricity (smoothness when the surface layer is touched with a finger) and the friction resistance of the surface layer are insufficient. -Since the poly (oxyperfluoroalkylene) chain has a branched structure, the surface layer has insufficient friction resistance and lubricity.
- the present invention relates to a fluorine-containing ether compound and a coating liquid capable of forming a surface layer excellent in water / oil repellency, friction resistance, fingerprint stain removability and lubricity, water / oil repellency, friction resistance, fingerprint stain removability and lubrication.
- An object of the present invention is to provide an article having an excellent surface layer and a novel compound useful as an intermediate for producing a fluorine-containing ether compound.
- the present invention provides fluorine-containing ether compounds, coating solutions, articles and novel compounds having the following constitutions [1] to [14].
- [1] A fluorine-containing ether compound represented by the following formula (1). [R f —G—] a Z [— (O—R 2 ) c —SiR 3 n L 3-n ] b (1) Provided that R f has 2 or more etheric oxygen atoms between carbon atoms of the polyfluoroalkyl group and 1 or more fluorine atoms on the carbon atom bonded to G or Z.
- G is, -R 1 -O -, - R 1 -CONH -, - CONH- , or a single bond
- R 1 is an alkylene group
- Z is, (a + b ) Valent hydrocarbon group, or a (a + b) valent group having 2 or more carbon atoms and having one or more etheric oxygen atoms between carbon atoms of the hydrocarbon group
- R 2 is an alkylene group
- R 3 is a hydrogen atom or a monovalent hydrocarbon group
- L is a hydrolyzable group
- n is an integer of 0 to 2
- a is an integer of 1 or more
- b Is an integer of 1 or more
- (a + b) is 3 or more, and when a is 1, b is Not less than, a is at b is 1 or more when 2 or more, [-G- R f] a is 2 or more when a number of may be different even in the same, b is 2 or more
- [2] The fluorine-containing ether compound of [1], wherein R 2 is an alkylene group having 4 to 14 carbon atoms.
- Z is a group represented by the following formula (Z-1), a group represented by the following formula (Z-2), a group represented by the following formula (Z-3), a group represented by the following formula (Z -4) or a fluorine-containing ether compound of [1] or [2], which is a group represented by the following formula (Z-5):
- R 4 is an alkyl group.
- R f is a group represented by the following formula (R f -0).
- R f1 is a linear perfluoroalkyl group having 1 to 20 carbon atoms when m1 is 0, or a linear perfluoroalkyl group having 1 to 20 carbon atoms when m1 is 1 or more, or perfluoroalkyl
- R 2 is a straight chain group having 2 to 20 carbon atoms and having one or more etheric oxygen atoms between carbon atoms of the group, and R f2 has one or more hydrogen atoms
- 1 to 10 is a linear fluoroalkylene group
- m1 is an integer of 0 to 10
- m1 is 2 different in either or both of
- R f3 is a linear perfluoroalkylene group having 1 to 10 carbon atoms
- m2 is an integer of 2 to 200
- (R f3 O ) m2 is, different numbers of carbon atoms May be made of the species or more R f3 O
- R f4 is a linear perfluoroalkylene group having 1 to 10 carbon atoms.
- the above-mentioned R f is a linear group having 2 or more carbon atoms and having one or more etheric oxygen atoms between carbon atoms of the perfluoroalkyl group, [1] to [4] Any fluorine-containing ether compound.
- R f is a group represented by the following formula (R f -1), a group represented by the following formula (R f -2), or a group represented by the following formula (R f -3)
- R f is a group represented by the following formula (R f -1), a group represented by the following formula (R f -2), or a group represented by the following formula (R f -3)
- R f is a group represented by the following formula (R f -1), a group represented by the following formula (R f -2), or a group represented by the following formula (R f -3)
- R f1 is a perfluoroalkyl group having 1 to 20 carbon atoms
- m21 and m22 are each an integer of 1 or more
- m21 + m22 is an integer of 2 to 200
- the bonding order of the individual CF 2 CF 2 O is not limited, and m25 is an integer of 1 to 100.
- a coating liquid comprising the fluorinated ether compound of any one of [1] to [8] and a liquid medium.
- An article having a surface layer formed from the fluorinated ether compound by treating the surface of the substrate with the fluorinated ether compound of any one of [1] to [8] by a dry coating method A method for producing an article, characterized in that [12] An article having a surface layer formed from a fluorinated ether compound by treating the surface of the substrate by a wet coating method using the coating liquid of [9]. Production method.
- a surface layer excellent in water / oil repellency, friction resistance, fingerprint stain removability and lubricity can be formed.
- the article of the present invention has a surface layer excellent in water and oil repellency, friction resistance, fingerprint stain removability and lubricity.
- the novel compound of the present invention is useful as an intermediate for producing a fluorine-containing ether compound.
- a compound represented by the formula (1) is referred to as a compound (1).
- the meanings of the following terms in this specification are as follows.
- the “etheric oxygen atom” means an oxygen atom that forms an ether bond (—O—) between carbon atoms. In the chemical formula of the oxyfluoroalkylene group, the oxygen atom is described on the right side of the fluoroalkylene group.
- the “hydrolyzable silyl group” means a group that can form a silanol group (Si—OH) by a hydrolysis reaction. For example, SiR 3 n L 3-n in formula (1).
- “Surface layer” means a layer formed on the surface of a substrate.
- the “number average molecular weight” of the fluorine-containing ether compound is calculated by the following method using NMR analysis. It is calculated by determining the number (average value) of oxyperfluoroalkylene groups based on terminal groups by 1 H-NMR and 19 F-NMR.
- the end group is, for example, R f1 or SiR 3 n L 3-n in the formula.
- the fluorine-containing ether compound of the present invention (hereinafter also referred to as the present compound) is the compound (1).
- R f has one or more etheric oxygen atoms between the carbon atoms of the polyfluoroalkyl group and one fluorine atom on the carbon atom bonded to G or Z. It is a linear group having 2 or more carbon atoms.
- G is, -R 1 -O -, - R 1 -CONH -, - CONH- , or a single bond.
- R 1 is an alkylene group.
- Z is an (a + b) -valent hydrocarbon group or a group having 2 or more carbon atoms and an (a + b) -valent group having at least one etheric oxygen atom between the carbon atom and the carbon atom of the hydrocarbon group.
- R 2 is an alkylene group.
- R 3 is a hydrogen atom or a monovalent hydrocarbon group.
- L is a hydrolyzable group.
- n is an integer of 0-2.
- a is an integer of 1 or more.
- b is an integer of 1 or more.
- (A + b) is 3 or more. When a is 1, b is 4 or more, and when a is 2 or more, b is 1 or more.
- a is 2 or more, a [R f -G-] may be the same or different.
- b is 2 or more, b [-(O—R 2 ) c —SiR 3 n L 3-n ] may be the same or different.
- c is 0 or 1;
- compound (1) Since compound (1) has R f , the content of fluorine atoms is large. Therefore, a surface layer having excellent water / oil repellency, friction resistance, and fingerprint stain removability can be formed. Further, since R f does not have a branched structure, R f has a linear structure. According to the compound (1) having this structure, the surface layer is excellent in friction resistance and lubricity. On the other hand, in the conventional fluorine-containing ether compound in which the poly (oxyperfluoroalkylene) chain has a branched structure, the surface layer has insufficient friction resistance and lubricity.
- R f is a carbon having at least one etheric oxygen atom between the carbon atom-carbon atom of the perfluoroalkyl group from the viewpoint of further excellent water and oil repellency, friction resistance and fingerprint stain removability of the surface layer.
- a linear group having a number of 2 or more is preferred.
- R f is preferably a group represented by the following formula (R f ⁇ 0) from the viewpoint that the surface layer is further excellent in water / oil repellency, friction resistance, fingerprint stain removability and lubricity.
- R f1 is a linear perfluoroalkyl group having 1 to 20 carbon atoms when m1 is 0, and linear with 1 to 20 carbon atoms when m1 is 1 or more.
- R f2 is a linear fluoroalkylene group having 1 to 10 carbon atoms and having one or more hydrogen atoms.
- m1 is an integer of 0 to 10, and when m1 is 2 or more (R f2 O), m1 is composed of two or more types of R f2 O different in either or both of carbon number and hydrogen number. Also good.
- R f3 is a linear perfluoroalkylene group having 1 to 10 carbon atoms.
- m2 is an integer of 2 to 200, and (R f3 O) m2 may be composed of two or more types of R f3 O having different carbon numbers.
- R f4 is a linear perfluoroalkylene group having 1 to 10 carbon atoms.
- the number of carbon atoms in R f1 is preferably 1 to 6 and particularly preferably 1 to 3 from the viewpoint of further excellent lubricity and friction resistance of the surface layer.
- R f1 include CF 3- , CF 3 CF 2- , CF 3 CF 2 CF 2- , CF 3 OCF 2 CF 2- (when m1 is 1 or more), CF 3 CF 2 OCF 2 CF 2 — (where m1 is 1 or more), CF 3 CF 2 CF 2 OCF 2 CF 2 — (where m1 is 1 or more), and the like.
- R f1 has CF 3 — at the terminal, at least one terminal of compound (1) becomes CF 3 —.
- a surface layer having a low surface energy can be formed, so that the surface layer is excellent in lubricity and friction resistance.
- the number of hydrogen atoms in R f2 is 1 or more, preferably 2 or more, and particularly preferably 3 or more, from the viewpoint of excellent appearance of the surface layer.
- the number of hydrogen atoms in R f2 is from the viewpoint of further excellent water and oil repellency of the surface layer, (the number of carbon atoms in R f2) ⁇ 2 or less, (the number of carbon atoms in R f2) or less is particularly preferred.
- R f2 has a hydrogen atom, the solubility of the compound (1) in the liquid medium is increased. Therefore, the compound (1) is less likely to aggregate in the coating solution, and the compound (1) is less likely to aggregate during the drying process after being applied to the surface of the substrate.
- the number of carbon atoms in R f2 is preferably 1 to 6 and particularly preferably 1 to 3 from the viewpoint of further improving the lubricity and friction resistance of the surface layer.
- m1 is preferably an integer of 0 to 5, particularly preferably an integer of 1 to 3. If m1 is not less than the lower limit of the above range, the appearance of the surface layer is excellent. When m1 is not more than the upper limit of the above range, the surface layer is excellent in water / oil repellency, friction resistance, fingerprint stain removability and lubricity. (R f2 O) In m1 , when two or more types of R f2 O are present, the bonding order of each R f2 O is not limited.
- (R f2 O) m1 is a single bond or —CHFCF 2 OCH 2 CF 2 O— or —CF 2 CHFCF 2 OCH 2 CF 2 in terms of ease of production of the compound (1).
- R f3 is preferably a linear perfluoroalkylene group having 1 to 6 carbon atoms and a linear perfluoroalkylene group having 1 to 4 carbon atoms from the viewpoint of further excellent friction resistance and lubricity of the surface layer. More preferred is a linear perfluoroalkylene group having 1 to 2 carbon atoms from the viewpoint of further excellent lubricity of the surface layer.
- the compound (1) having (R f3 O) m2 has a higher fluorine atom content. Therefore, it is possible to form a surface layer that is further excellent in water / oil repellency, friction resistance, and fingerprint stain removability. Further, since R f3 is a linear perfluoroalkylene group, (R f3 O) m2 has a linear structure. The compound (1) having this structure is excellent in the friction resistance and lubricity of the surface layer.
- m2 is preferably an integer of 5 to 150, particularly preferably an integer of 10 to 100. If m2 is not less than the lower limit of the above range, the water and oil repellency of the surface layer is excellent. If m2 is less than or equal to the upper limit of the above range, the surface layer is excellent in friction resistance. That is, when the number average molecular weight of the compound (1) is too large, the number of hydrolyzable silyl groups present per unit molecular weight is small, so that the friction resistance is lowered. (R f3 O) In m2 , when two or more types of R f3 O are present, the bonding order of each R f3 O is not limited. For example, when CF 2 O and CF 2 CF 2 O are present, CF 2 O and CF 2 CF 2 O may be randomly or alternately arranged in blocks.
- the (R f3 O) m2, abrasion resistance of the surface layer, the fingerprint stain removal properties, from the viewpoint of further excellent lubricity ⁇ (CF 2 O) m21 (CF 2 CF 2 O) m22 ⁇ , (CF 2 CF 2 O) m23, (CF 2 CF 2 CF 2 O) m24, (CF 2 CF 2 OCF 2 CF 2 CF 2 O) m25 CF 2 CF 2 O are preferable, ⁇ (CF 2 O) m21 (CF 2 CF 2 O) m22 ⁇ , ( CF 2 CF 2 OCF 2 CF 2 CF 2 O) m25 CF 2 CF 2 O are particularly preferred.
- m21 is an integer of 1 or more
- m22 is an integer of 1 or more
- m21 + m22 is an integer of 2 to 200
- the bonding order of m21 CF 2 O and m22 CF 2 CF 2 O is limited.
- m23 and m24 are integers of 2 to 200
- m25 is an integer of 1 to 100.
- R f4 for example (R f3 O) m @ 2 is, ⁇ (CF 2 O) m21 (CF 2 CF 2 O) m22 ⁇ or (CF 2 CF 2 O) when it is m23, -CF 2 - and is, ( CF 2 CF 2 CF 2 O) m24 is —CF 2 CF 2 — and (CF 2 CF 2 O—CF 2 CF 2 CF 2 CF 2 O) m25 is —CF 2 CF 2 CF 2- .
- R f4 is a straight-chain compound (1), a surface layer having excellent friction resistance and lubricity can be formed.
- the group represented by the formula (R f ⁇ 0) includes water and oil repellency, friction resistance, fingerprint stain removability, lubricity, and further excellent appearance in the surface layer and the production of compound (1). From the viewpoint of easiness, a group represented by the following formula (R f -1), a group represented by the following formula (R f -2), or a group represented by the following formula (R f -3) preferable.
- R f1 is a linear perfluoroalkyl group having 1 to 20 carbon atoms
- m21 and m22 are each an integer of 1 or more
- m21 + m22 is an integer of 2 to 200
- the bonding order of m21 CF 2 O and m22 CF 2 CF 2 O is not limited
- m25 is an integer of 1
- G is, -R 1 -O -, - R 1 -CONH -, - CONH- , or a single bond.
- G is preferably —R 1 —CONH— or —CONH— from the viewpoint of excellent light resistance of the compound (1), and —R 1 —O— from the viewpoint of excellent chemical resistance of the compound (1). Is preferred.
- R 1 is an alkylene group.
- R 1 is preferably an alkylene group having 1 to 4 carbon atoms, particularly preferably —CH 2 —, from the viewpoint of easy production of the compound (1).
- Z is an (a + b) -valent hydrocarbon group or a group having 2 or more carbon atoms and an (a + b) -valent group having at least one etheric oxygen atom between the carbon atom and the carbon atom of the hydrocarbon group.
- Z is a residue obtained by removing a hydroxyl group from a polyhydric alcohol having (a + b) hydroxyl groups when G is —R 1 —O— and c is 1. Examples of Z include groups of the following formula.
- Z is preferably a residue obtained by removing a hydroxyl group from a polyhydric alcohol having a primary hydroxyl group, from the viewpoint of excellent hydroxyl reactivity.
- Z is represented by the group represented by the following formula (Z-1), the group represented by the following formula (Z-2), or the following formula (Z-3) from the viewpoint of easy availability of raw materials.
- a group represented by the following formula (Z-4) or a group represented by the following formula (Z-5) is particularly preferred.
- R 4 is an alkyl group, preferably a methyl group or an ethyl group.
- R 2 is an alkylene group.
- R 2 is preferably an alkylene group having 4 to 14 carbon atoms from the viewpoint of easy production of the compound (1). Furthermore, a by-product in which part or all of the allyl group (—CH 2 CH ⁇ CH 2 ) is isomerized to the inner olefin (—CH ⁇ CHCH 3 ) during hydrosilylation in the production of the compound (1) described later is obtained.
- An alkylene group having 4 to 10 carbon atoms is particularly preferred because it is difficult to form.
- SiR 3 n L 3-n is a hydrolyzable silyl group.
- Compound (1) has a hydrolyzable silyl group at the terminal. The compound (1) having this structure is strongly chemically bonded to the substrate.
- L is a hydrolyzable group.
- the hydrolyzable group is a group that becomes a hydroxyl group by a hydrolysis reaction. That is, Si-L at the terminal of the compound (1) becomes a silanol group (Si-OH) by hydrolysis reaction. The silanol group further reacts between molecules to form a Si—O—Si bond. Further, the silanol group undergoes a dehydration condensation reaction with a hydroxyl group (base material-OH) on the surface of the base material to form a chemical bond (base material-O-Si).
- L examples include an alkoxy group, a halogen atom, an acyl group, and an isocyanate group (—NCO).
- alkoxy group an alkoxy group having 1 to 4 carbon atoms is preferable.
- L is preferably an alkoxy group having 1 to 4 carbon atoms or a halogen atom from the viewpoint of easy production of the compound (1).
- halogen atom a chlorine atom is particularly preferable.
- L is preferably an alkoxy group having 1 to 4 carbon atoms from the viewpoint of low outgassing during coating and excellent storage stability of the compound (1), and when long-term storage stability of the compound (1) is required. Is particularly preferably an ethoxy group, and a methoxy group is particularly preferred when the reaction time after coating is short.
- R 3 is a hydrogen atom or a monovalent hydrocarbon group.
- the monovalent hydrocarbon group include an alkyl group, a cycloalkyl group, an alkenyl group, and an allyl group.
- the carbon number of the monovalent hydrocarbon group is preferably 1 to 6, more preferably 1 to 3, and particularly preferably 1 to 2. When the number of carbon atoms in R 3 is within this range, compound (1) can be easily produced.
- N is preferably 0 or 1, particularly preferably 0.
- SiR 3 n L 3-n includes Si (OCH 3 ) 3 , SiCH 3 (OCH 3 ) 2 , Si (OCH 2 CH 3 ) 3 , SiCl 3 , Si (OCOCH 3 ) 3 , and Si (NCO) 3. preferable. From the viewpoint of ease of handling in industrial production, Si (OCH 3 ) 3 is particularly preferable.
- a is preferably 1 to 10, and particularly preferably 1 to 4.
- the surface layer is excellent in water / oil repellency, friction resistance, fingerprint stain removability and lubricity.
- the appearance of the surface layer is excellent.
- (A + b) is preferably from 3 to 15, particularly preferably from 3 to 12.
- b is 4 or more, preferably 4 to 10, and particularly preferably 4 to 5.
- a is 1 and b is not 4 or more, the surface layer has insufficient friction resistance. If b is below the upper limit of the said range, it is excellent in the external appearance of a surface layer, and stability of a compound (1).
- b is an integer of 1 or more, preferably an integer of 1 to 10, and particularly preferably an integer of 1 to 4.
- a is an integer of 2 or more, the density of R f —R 1 —O— groups in the surface layer is increased, and the surface layer is excellent in lubricity, so that it is difficult to apply a frictional force to the surface layer. Therefore, even if b is 1, the surface layer has excellent friction resistance. If b is below the upper limit of the said range, it is excellent in the external appearance of a surface layer, and stability of a compound (1).
- a [R f -G-] may be the same or different.
- b is 2 or more, b [-(O—R 2 ) c —SiR 3 n L 3-n ] may be the same or different.
- C is 0 or 1.
- c is preferably 0 from the viewpoint of excellent light resistance of the compound (1), and is preferably 1 from the viewpoint of ease of production of the compound (1).
- Preferred compounds (1) include, for example, the following compounds (1-1) to (1-8).
- the compound is preferable because it is easy to produce industrially, is easy to handle, and is excellent in water / oil repellency, friction resistance, fingerprint stain removability, lubricity and appearance of the surface layer.
- Examples of the production method when the compound (1) is [R f —R 1 —O—] a Z [—O—R 2 —SiR 3 n L 3-n ] b include the following methods. In the presence of a basic compound, the compound (2) and the compound (3) are reacted to obtain a crude product.
- the crude product contains a plurality of types of compounds (4) having different ratios of a and b.
- the compound (4) in which the ratio of a to b is a desired ratio is separated from the crude product by a known means (column purification or the like).
- X 1 is a halogen atom
- R 21 is an alkylene group having two carbon atoms less than R 2 .
- Compound (5) is obtained by reacting compound (4) with trifluoromethanesulfonic anhydride in the presence of a basic compound such as 2,6-lutidine.
- a basic compound such as 2,6-lutidine.
- Compound (7) is obtained by reacting compound (5) with compound (6) in the presence of a basic compound.
- R f —R 1 —OH (6) [R f —R 1 —O—] a Z [—O—R 21 —CH ⁇ CH 2 ] b (7)
- the compound (7) and the compound (8) are subjected to a hydrosilylation reaction to obtain the compound (1).
- the hydrosilylation reaction is preferably performed using a transition metal catalyst such as platinum or a radical generator such as an organic peroxide.
- HSiR 3 n L 3-n (8) [R f —R 1 —O—] a Z [—O—R 2 —SiR 3 n L 3-n ] b (1)
- Examples of the compound (2) in which a + b is 3 include glycerin, trimethylolethane, trimethylolpropane, 1,2,6-hexanetriol and the like.
- Examples of the compound (2) in which a + b is 4 include diglycerin, pentaerythritol, ditrimethylolpropane, and the like.
- Examples of the compound (2) in which a + b is 6 include dipentaerythritol, sorbitol, mannitol, dulcitol and the like.
- Examples of the compound (3) include allyl bromide and 5-bromo-1-pentene.
- Compound (6) can be produced, for example, by the method described in International Publication No. 2013/121984, International Publication No. 2014/163004, International Publication No. 2015/088792.
- Examples of the compound (8) include trimethoxysilane, triethoxysilane, methyldimethoxysilane, trichloros
- the compound (2), the compound (3), the compound (6) and the compound (8) are appropriately selected, the ratio of a to b in the compound (4) is appropriately selected, and each reaction is carried out in the same manner as in Examples described later. By carrying out, the desired compound (1) can be produced.
- Examples of the production method when the compound (1) is [R f —CONH—] a Z [—SiR 3 n L 3-n ] b include the following methods.
- Compound (12) and compound (3) are reacted in the presence of a basic compound to obtain compound (13).
- NC- (CH 2 ) d -CN (12) X 1 —R 21 —CH ⁇ CH 2 (3) NC—C (—R 21 —CH ⁇ CH 2 ) 2 — (CH 2 ) d-2 —C (—R 21 —CH ⁇ CH 2 ) 2 —CN (13)
- d is an integer of 2 or more
- X 1 is a halogen atom
- R 21 is an alkylene group.
- R f —COX 2 (15) R f —CONH—CH 2 —C (—R 21 —CH ⁇ CH 2 ) 2 — (CH 2 ) d-2 —C (—R 21 —CH ⁇ CH 2 ) 2 —CH 2 —NHCO—R f ( 16)
- X 2 is a halogen atom or an alkoxy group.
- the compound (16) and the compound (8) are subjected to a hydrosilylation reaction to obtain the compound (1).
- the hydrosilylation reaction is preferably performed using a transition metal catalyst such as platinum or a radical generator such as an organic peroxide.
- R f CONH—CH 2 —C (—R 21 —CH 2 CH 2 —SiR 3 n L 3-n ) 2 — (CH 2 ) d-2 —C (—R 21 —CH 2 CH 2 —SiR 3 n L 3-n ) 2 —CH 2 —NHCO—R f (1)
- Compound (15) can be produced, for example, by the method described in International Publication No. 2013/121984.
- Examples of the production method when the compound (1) is [R f —R 1 —O—] a Z [—SiR 3 n L 3-n ] b include the following methods.
- Compound (18) is obtained by reacting compound (17) with trifluoromethanesulfonic anhydride in the presence of a basic compound such as 2,6-lutidine. (HO—CH 2 —) 2 C (—R 22 —CH ⁇ CH 2 ) 2 (17) (F 3 C—SO 2 —O—CH 2 —) 2 C (—R 22 —CH ⁇ CH 2 ) 2 (18)
- R 22 is an alkylene group.
- Compound (19) is obtained by reacting compound (18) with compound (6) in the presence of a basic compound. (R f —R 1 —O—CH 2 —) 2 C (—R 22 —CH ⁇ CH 2 ) 2 (19)
- the compound (19) and the compound (8) are subjected to a hydrosilylation reaction to obtain the compound (1).
- the hydrosilylation reaction is preferably performed using a transition metal catalyst such as platinum or a radical generator such as an organic peroxide.
- Examples of the compound (17) include 2,2-diallyl-1,3-propanediol.
- This compound may be a single compound composed of one kind of compound (1), and R f , R 1 , Z, R 2 , SiR 3 n L 3-n , a, b, c, etc. are different 2
- species may be sufficient.
- the compound (1) which is a single compound means that it is the same compound except for the number of oxyperfluoroalkylene groups in R f .
- R f is the formula (R f -1)
- the compound (1) is usually produced as a mixture of a plurality of types of compounds (1) having different m21 and m22.
- a group of compounds having distributions of m21 and m22 is regarded as one type of compound (1).
- the number average molecular weight of the present compound is preferably 1,000 to 30,000, more preferably 2,000 to 25,000, and particularly preferably 3,000 to 20,000. If the number average molecular weight of the present compound is within this range, the surface layer has excellent friction resistance.
- the fluorinated ether composition in the present invention is a composition comprising the compound (1), a fluorinated ether compound other than the compound (1), and at least one of the following impurities.
- the impurities include compounds inevitable in the production of the present compound and other fluorine-containing ether compounds.
- this composition does not contain the liquid medium mentioned later.
- fluorine-containing ether compounds As other fluorine-containing ether compounds, fluorine-containing ether compounds by-produced in the production process of the compound (1) (hereinafter also referred to as by-product fluorine-containing ether compounds), known for use in the same applications as the compound (1) And fluorine-containing ether compounds.
- the other fluorine-containing ether compound is preferably a compound that is less likely to deteriorate the properties of the compound (1).
- the content of the other fluorine-containing ether compound is preferably an amount that is less likely to deteriorate the properties of the compound (1).
- a fluorine-containing ether compound As a by-product fluorine-containing ether compound, a fluorine-containing ether compound having an unreacted hydroxyl group derived from the compound (2) and a part of the allyl group at the time of hydrosilylation in the production of the compound (1) described above Examples thereof include fluorine-containing ether compounds isomerized to inner olefins.
- this composition contains a by-product fluorine-containing ether compound, the purification step for removing the by-product fluorine-containing compound or reducing the amount of the by-product fluorine-containing compound can be simplified.
- Examples of known fluorine-containing ether compounds include commercially available fluorine-containing ether compounds. When this composition contains a well-known fluorine-containing ether compound, new effects, such as supplementing the characteristic of a compound (1), may be exhibited.
- the ratio of this compound in this composition is less than 100 mass%, and 60 mass% or more is preferable. A more desirable ratio is 70% by mass or more, and 80% by mass or more is particularly preferable.
- this composition contains another fluorine-containing ether compound
- the ratio of the other fluorine-containing ether compound to the total of the compound and the other fluorine-containing ether compound in the composition is preferably 40% by mass or less, and 30% by mass. % Or less is more preferable, and 20% by mass or less is particularly preferable.
- the total proportion of the present compound and other fluorine-containing ether compounds in the composition is preferably 80% by mass or more, and particularly preferably 85% by mass or more.
- the coating liquid of the present invention contains the present compound or the present composition and a liquid medium.
- the coating liquid may be liquid, may be a solution, or may be a dispersion. This coating liquid should just contain this compound or this composition, and may also contain impurities, such as a by-product produced
- the concentration of the present compound or the present composition is preferably 0.001 to 10% by mass, particularly preferably 0.1 to 1% by mass in the present coating solution.
- an organic solvent is preferable.
- the organic solvent may be a fluorinated organic solvent, a non-fluorinated organic solvent, or may include both solvents.
- fluorinated organic solvent examples include fluorinated alkanes, fluorinated aromatic compounds, fluoroalkyl ethers, fluorinated alkylamines, and fluoroalcohols.
- fluorinated alkane a compound having 4 to 8 carbon atoms is preferable.
- Commercially available products include, for example, C 6 F 13 H (Asahi Glass Co., Ltd., Asahi Culin (registered trademark) AC-2000), C 6 F 13 C 2 H 5 (Asahi Glass Co., Ltd., Asahi Clin (registered trademark) AC-6000).
- C 2 F 5 CHFCHFCF 3 (manufactured by Chemers, Bertrell (registered trademark) XF), and the like.
- fluorinated aromatic compound examples include hexafluorobenzene, trifluoromethylbenzene, perfluorotoluene, and bis (trifluoromethyl) benzene.
- fluoroalkyl ether a compound having 4 to 12 carbon atoms is preferable.
- Examples of commercially available products include CF 3 CH 2 OCF 2 CF 2 H (Asahi Glass Co., Ltd., Asahi Clin (registered trademark) AE-3000), C 4 F 9 OCH 3 (manufactured by 3M, Novec (registered trademark) 7100), C 4 F 9 OC 2 H 5 (manufactured by 3M, Novec (registered trademark) 7200), C 2 F 5 CF (OCH 3 ) C 3 F 7 (manufactured by 3M, Novec (registered trademark) 7300), etc. .
- Examples of the fluorinated alkylamine include perfluorotripropylamine and perfluorotributylamine.
- the fluoroalcohol examples include 2,2,3,3-tetrafluoropropanol, 2,2,2-trifluoroethanol, hexafluoroisopropanol and the like.
- the non-fluorine-based organic solvent a compound consisting only of a hydrogen atom and a carbon atom and a compound consisting only of a hydrogen atom, a carbon atom and an oxygen atom are preferable, a hydrocarbon-based organic solvent, an alcohol-based organic solvent, a ketone-based organic solvent, Examples include ether organic solvents and ester organic solvents.
- the coating liquid preferably contains 90 to 99.999% by mass of a liquid medium, and particularly preferably 99 to 99.9% by mass.
- the present coating liquid may contain other components in addition to the present compound or the present composition and the liquid medium as long as the effects of the present invention are not impaired.
- the other components include known additives such as an acid catalyst and a basic catalyst that promote hydrolysis and condensation reaction of the hydrolyzable silyl group.
- the content of other components in the coating solution is preferably 10% by mass or less, and particularly preferably 1% by mass or less.
- the total concentration of the present compound and other components in the present coating liquid or the total concentration of the present composition and other components is preferably 0.001 to 10% by mass, preferably 0.01 to 1% by mass is particularly preferred.
- the solid content concentration of the coating liquid is a value calculated from the mass of the coating liquid before heating and the mass after heating for 4 hours in a convection dryer at 120 ° C.
- the article of the present invention has a surface layer formed from the present compound or the present composition on the surface of the substrate.
- a hydrolyzable silyl group (SiR 3 n L 3-n ) in the present compound undergoes a hydrolysis reaction to form a silanol group (Si—OH). React with each other to form Si—O—Si bond, or the silanol group forms a chemical bond (base material—O—Si) by dehydration condensation reaction with a hydroxyl group (base material—OH) on the surface of the base material.
- the surface layer in the present invention contains the present compound in a state where part or all of the hydrolyzable silyl group of the present compound has undergone a hydrolysis reaction.
- the thickness of the surface layer is preferably 1 to 100 nm, particularly preferably 1 to 50 nm. If the thickness of the surface layer is not less than the lower limit of the above range, the effect of the surface treatment can be sufficiently obtained. If the thickness of the surface layer is not more than the upper limit of the above range, the utilization efficiency is high.
- the thickness of the surface layer is determined by obtaining an interference pattern of reflected X-rays by an X-ray reflectivity method using an X-ray diffractometer for thin film analysis (manufactured by RIGAKU, ATX-G). It can be calculated.
- the substrate in the present invention is not particularly limited as long as it is a substrate that is required to be imparted with water and oil repellency.
- the material for the substrate include metals, resins, glass, sapphire, ceramics, stones, and composite materials thereof.
- the base material for touch panels and the base material for displays are suitable, and the base material for touch panels is especially suitable.
- the base material for touch panels has translucency. “Having translucency” means that the normal incidence type visible light transmittance according to JIS R3106: 1998 (ISO 9050: 1990) is 25% or more.
- As a material of the base material for touch panels glass or transparent resin is preferable.
- the article of the present invention can be produced, for example, by the following method. -The method of processing the surface of a base material by the dry-coating method using this compound or this composition, and obtaining the article
- the present compound and the present composition can be used as they are in the dry coating method.
- the present compound and the present composition are suitable for forming a surface layer having excellent adhesion by a dry coating method.
- Examples of the dry coating method include vacuum deposition, CVD, sputtering, and the like. From the viewpoint of suppressing the decomposition of the present compound and the simplicity of the apparatus, a vacuum deposition method can be suitably used.
- Wet coating methods include spin coating, wipe coating, spray coating, squeegee coating, dip coating, die coating, ink jet, flow coating, roll coating, casting, Langmuir-Blodgett, and gravure. Examples thereof include a coating method.
- an operation for promoting the reaction between the present compound and the substrate may be performed as necessary.
- the operation include heating, humidification, and light irradiation.
- hydrolysis reaction of hydrolyzable silyl groups to silanol groups by heating a substrate on which a surface layer is formed in an atmosphere containing moisture, hydrolysis reaction of hydrolyzable silyl groups to silanol groups, reaction of hydroxyl groups on the surface of the substrate with silanol groups, silanols, Reactions such as formation of siloxane bonds by group condensation reactions can be promoted.
- compounds in the surface layer that are not chemically bonded to other compounds or the substrate may be removed as necessary. Specific methods include, for example, a method of pouring a solvent over the surface layer and a method of wiping with a cloth soaked with a solvent.
- the articles of the present invention are used as parts or part of the following products, optical articles, a touch panel, an antireflection film, antireflection glass, SiO 2 treated glass, tempered glass, sapphire glass, a quartz substrate, a mold metal Etc. are preferred.
- Products Car navigation, mobile phone, digital camera, digital video camera, personal digital assistant (PDA), portable audio player, car audio, game machine, eyeglass lens, camera lens, lens filter, sunglasses, medical device (gastro camera, etc.) ), Copier, personal computer (PC), liquid crystal display, organic EL display, plasma display, touch panel display, protective film, antireflection film, antireflection glass, nanoimprint template, mold and the like.
- % is “% by mass” unless otherwise specified.
- a mixture composed of two or more kinds of compounds (1) is referred to as a “compound”, and a mixture composed of the compound (1) and another fluorine-containing ether compound is referred to as a “composition”.
- Examples 1 to 13, 16 to 30, 33, and 34 are examples, and examples 14, 15, 31, and 32 are comparative examples.
- Compound (3-1) Allyl bromide (manufactured by Tokyo Chemical Industry Co., Ltd.).
- Compound (3-2) 5-bromo-1-pentene (manufactured by Tokyo Chemical Industry Co., Ltd.).
- Compound (6-1a) Compound obtained by the method described in Production Example 6 of International Publication No. 2015/088702. CF 3 CF 2 CF 2 O ⁇ (CF 2 O) m21 (CF 2 CF 2 O) m22 ⁇ CF 2 -CH 2 -OH (6-1a) Average value of m21: 21, Average value of m22: 20, Number average molecular weight: 4,200.
- Compound (12-1) Adiponitrile (manufactured by Tokyo Chemical Industry Co., Ltd.).
- R f of the compound (1-1) is a group represented by the formula (R f -1)
- R f of the compound (1-1) will be described.
- a compound in which is a group represented by the formula (R f -2) is referred to as a compound (1-1b)
- R f of the compound (1-1) is a group represented by the formula (R f -3)
- the compound will be referred to as compound (1-1c).
- compound (1-3) to (1-8) compound (6-1), compound (7-1), compound (15-1), compound (16-1), and compound (19-1). It is.
- the compound (1-1a) in which the five allyl groups of the compound (7-1a) were hydrosilylated and the compound (7-1a) 6.4 g of a composition (A) comprising a by-product in which some or all of the five allyl groups were isomerized to an inner olefin (—CH ⁇ CHCH 3 ) was obtained.
- the conversion rate of hydrosilylation was 100%, and the compound (7-1a) did not remain.
- the hydrosilylation selectivity was 82%.
- Examples 2 to 15 The raw material compound (2), compound (3) and compound (6) were changed to the compounds shown in Table 1, and the ratio of a and b in the fractionated compound (4) was set to the ratio shown in Table 1, Except that the number of moles of each compound charged was changed according to the number of reactive functional groups possessed by the compound, the compound (1) or a composition containing it or the compound (11) of the comparative example was obtained in the same manner as in Example 1. A composition containing was obtained. The structures of compound (1) and compound (11) are shown in Table 1.
- NMR spectrum results of Compound (1) and Compound (11) are shown below.
- Example 18 to 34 Surface treatment of the base material was performed using each compound or composition obtained in Examples 1 to 17 to obtain articles of Examples 18 to 34.
- the surface treatment method the following dry coating method and wet coating method were used for each example. Chemically tempered glass was used as the substrate.
- the obtained article was evaluated by the following method. The results are shown in Tables 2-5.
- Dry coating was performed using a vacuum deposition apparatus (Showa Vacuum Co., SGC-22WA) (vacuum deposition method). 35 mg of each compound or composition obtained in Examples 1 to 17 was filled in a molybdenum boat in a vacuum vapor deposition apparatus, and the inside of the vacuum vapor deposition apparatus was evacuated to 5 ⁇ 10 ⁇ 3 Pa or less. A boat in which each compound or composition was placed was heated, and each compound or composition was deposited on the surface of the substrate to form a deposited film on the surface of the substrate. The substrate on which the deposited film was formed was left overnight under conditions of temperature: 25 ° C. and humidity: 40% to obtain an article having a surface layer on the surface of the substrate.
- ⁇ Initial contact angle> With respect to the surface layer, the initial water contact angle and the initial n-hexadecane contact angle were measured by the above-described measurement methods. The evaluation criteria are as follows. Initial water contact angle: ⁇ (excellent): 115 degrees or more. ⁇ (good): 110 degrees or more and less than 115 degrees. ⁇ (possible): 100 degrees or more and less than 110 degrees. X (impossible): less than 100 degrees.
- ⁇ Abrasion resistance (steel wool)> For the surface layer, using a reciprocating traverse tester (manufactured by KK) in accordance with JIS L0849: 2013 (ISO 105-X12: 2001), a steel wool bonster (# 0000) was subjected to pressure: 98.07 kPa and speed: 320 cm. After reciprocating 5000 times per minute, the water contact angle was measured. The smaller the decrease in water repellency (water contact angle) after friction, the smaller the decrease in performance due to friction and the better the friction resistance.
- the evaluation criteria are as follows. ⁇ (excellent): Change in water contact angle after 5,000 reciprocations is 5 degrees or less.
- ⁇ Abrasion resistance (eraser)> For the surface layer, using a reciprocating traverse tester (manufactured by KENTEI Co., Ltd.) in accordance with JIS L0849: 2013 (ISO 105-X12: 2001), a Rubber Eraser (manufactured by Minoan) was loaded: 4.9 N, speed: 60 rpm The water contact angle was measured after reciprocating 10,000 times. The smaller the decrease in water repellency (water contact angle) after friction, the smaller the decrease in performance due to friction and the better the friction resistance. The evaluation criteria are as follows. ⁇ (excellent): Change in water contact angle after 10,000 reciprocations is 5 degrees or less.
- ⁇ Appearance> The haze of the article was measured with a haze meter (manufactured by Toyo Seiki Co., Ltd.). The smaller the haze, the more uniformly the fluorine-containing ether compound can be applied and the better the appearance.
- the evaluation criteria are as follows. (Excellent): Haze is 0.1% or less. ⁇ (Good): Haze is more than 0.1% and 0.2% or less. ⁇ (possible): Haze is more than 0.2% and 0.3% or less. X (impossible): Haze exceeds 0.3%.
- the haze value was measured for each reciprocation, and the number of wipings at which the haze was 10% or less from the initial value was measured. The smaller the number of times of wiping, the easier it is to remove fingerprint stains, and the better the fingerprint stain wiping property.
- the evaluation criteria are as follows. ⁇ (excellent): Number of wiping operations is 3 or less. ⁇ (Good): Number of wiping operations 4-5 times. ⁇ (possible): Number of wiping operations is 6 to 8 times. X (impossible): The number of times of wiping was 9 times or more.
- ⁇ Lubricity> The dynamic friction coefficient of the surface layer with respect to artificial skin (Idemitsu Techno Fine Co., Ltd., PBZ13001) was measured using a load variation type frictional wear test system (Shinto Kagaku Co., Ltd., HHS2000), contact area: 3 cm ⁇ 3 cm, load: 0.98 N It measured on condition of this. The smaller the dynamic friction coefficient, the better the lubricity.
- the evaluation criteria are as follows. ⁇ (excellent): Dynamic friction coefficient is 0.3 or less. ⁇ (good): Dynamic friction coefficient is more than 0.3 and 0.4 or less. ⁇ (possible): Dynamic friction coefficient is more than 0.4 and 0.5 or less. X (impossible): The dynamic friction coefficient exceeds 0.5.
- Examples 18 to 30 and 33 to 34 using the compound (1) or the composition containing the compound (1) are excellent in water and oil repellency, friction resistance, appearance, fingerprint stain removability, light resistance and lubricity. It was.
- Example 31 in which the composition containing the compound (11-1) having hydrolyzable silyl groups at both ends was used, the friction resistance, appearance, fingerprint stain removability and light resistance were poor.
- the reason why the fingerprint wiping property is inferior is considered to be because the unreacted end group reduces the surface physical properties.
- the reason why the appearance and the friction resistance are inferior is considered to be due to a decrease in uniformity due to aggregation of the non-fluorine portion at the end.
- the reason why the friction resistance is inferior is considered that both ends are fixed to the base material.
- Example 32 using the composition containing the compound (11-2) in which the poly (oxyperfluoroalkylene) chain has a branched structure, the lubricity was significantly reduced due to the decrease in molecular mobility due to the branched structure. It is thought that the friction resistance was also greatly reduced due to this.
- the fluorine-containing ether compound of the present invention constitutes an optical article, a touch panel (such as a surface touched by a finger), an antireflection film, an antireflection glass, SiO 2 treated glass, tempered glass, sapphire glass, a quartz substrate, a mold metal, and the like. It can be suitably used for surface treatment that imparts water and oil repellency to the surface of a substrate such as a member. Moreover, it can also be used as a mold release agent for molds (made of metal, etc.). It should be noted that the description, claims and abstract of Japanese Patent Application No. 2016-070443 filed on Apr. 25, 2016 and Japanese Patent Application No. 2016-159202 filed on Aug. 15, 2016 are all included. The contents of which are hereby incorporated herein by reference.
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Abstract
Description
・含フッ素エーテル化合物の両末端の加水分解性シリル基が基材と反応したり、分子間で反応したりすることによって、含フッ素エーテル化合物の両末端が固定化される。そのため、表面層の潤滑性(表面層を指で触った際の滑らかさ)および耐摩擦性が不充分である。
・ポリ(オキシペルフルオロアルキレン)鎖が分岐構造を有しているため、表面層の耐摩擦性および潤滑性が不充分である。
[1]下式(1)で表される、含フッ素エーテル化合物。
[Rf-G-]aZ[-(O-R2)c-SiR3 nL3-n]b (1)
ただし、Rfは、ポリフルオロアルキル基の炭素原子-炭素原子間にエーテル性酸素原子を1つ以上有する、かつGまたはZと結合する炭素原子上にフッ素原子を1つ以上有する、炭素数2以上で直鎖状の基であり、Gは、-R1-O-、-R1-CONH-、-CONH-または単結合であり、R1は、アルキレン基であり、Zは、(a+b)価の炭化水素基、または炭化水素基の炭素原子-炭素原子間にエーテル性酸素原子を1つ以上有する、炭素数2以上で(a+b)価の基であり、R2は、アルキレン基であり、R3は、水素原子または1価の炭化水素基であり、Lは、加水分解性基であり、nは、0~2の整数であり、aは、1以上の整数であり、bは、1以上の整数であり、(a+b)は3以上であり、aが1のときbは4以上であり、aが2以上のときbは1以上であり、aが2以上のときa個の[Rf-G-]は、同一であっても異なっていてもよく、bが2以上のときb個の[-(O-R2)c-SiR3 nL3-n]は、同一であっても異なっていてもよく、cは、0または1である。
[3]前記Zが、下式(Z-1)で表される基、下式(Z-2)で表される基、下式(Z-3)で表される基、下式(Z-4)で表される基または下式(Z-5)で表される基である、[1]または[2]の含フッ素エーテル化合物。
[4]前記R1が、-CH2-である、[1]~[3]のいずれかの含フッ素エーテル化合物。
Rf1O(Rf2O)m1(Rf3O)m2Rf4- (Rf-0)
ただし、Rf1は、m1が0のとき炭素数1~20で直鎖状のペルフルオロアルキル基であり、m1が1以上のとき炭素数1~20で直鎖状のペルフルオロアルキル基、またはペルフルオロアルキル基の炭素原子-炭素原子間にエーテル性酸素原子を1つ以上有する、炭素数2~20で直鎖状の基であり、Rf2は、1つ以上の水素原子を有する、炭素数1~10で直鎖状のフルオロアルキレン基であり、m1は、0~10の整数であり、m1が2以上のとき(Rf2O)m1は炭素数および水素数のいずれか一方または両方の異なる2種以上のRf2Oからなるものであってもよく、Rf3は、炭素数1~10で直鎖状のペルフルオロアルキレン基であり、m2は、2~200の整数であり、(Rf3O)m2は、炭素数の異なる2種以上のRf3Oからなるものであってもよく、Rf4は、炭素数1~10で直鎖状のペルフルオロアルキレン基である。
[6]前記Rfが、ペルフルオロアルキル基の炭素原子-炭素原子間にエーテル性酸素原子を1つ以上有する、炭素数2以上で直鎖状の基である、[1]~[4]のいずれかの含フッ素エーテル化合物。
Rf1O{(CF2O)m21(CF2CF2O)m22}CF2- (Rf-1)
Rf1OCHFCF2OCH2CF2O{(CF2O)m21(CF2CF2O)m22}CF2- (Rf-2)
Rf1O(CF2CF2OCF2CF2CF2CF2O)m25CF2CF2OCF2CF2CF2- (Rf-3)
ただし、Rf1は、炭素数1~20のペルフルオロアルキル基であり、m21およびm22は、それぞれ1以上の整数であり、m21+m22は、2~200の整数であり、m21個のCF2Oおよびm22個のCF2CF2Oの結合順序は限定されず、m25は、1~100の整数である。
[8]数平均分子量が、1,000~30,000である、[1]~[7]のいずれかの含フッ素エーテル化合物。
[10]前記[1]~[8]のいずれかの含フッ素エーテル化合物から形成された表面層を有することを特徴とする物品。
[11]前記[1]~[8]のいずれかの含フッ素エーテル化合物を用いて、ドライコーティング法により基材の表面を処理して、前記含フッ素エーテル化合物から形成された表面層を有する物品を製造することを特徴とする物品の製造方法。
[12]前記[9]のコーティング液を用いて、ウェットコーティング法により基材の表面を処理して、含フッ素エーテル化合物から形成された表面層を有する物品を製造することを特徴とする物品の製造方法。
[13]下式(13-1)で表される化合物。
本発明の物品は、撥水撥油性、耐摩擦性、指紋汚れ除去性および潤滑性に優れる表面層を有する。
本発明の新規化合物は、含フッ素エーテル化合物を製造する際の中間体として有用である。
本明細書における以下の用語の意味は、以下の通りである。
「エーテル性酸素原子」とは、炭素原子-炭素原子間においてエーテル結合(-O-)を形成する酸素原子を意味する。なお、オキシフルオロアルキレン基の化学式は、その酸素原子をフルオロアルキレン基の右側に記載して表すものとする。
「加水分解性シリル基」とは、加水分解反応することによってシラノール基(Si-OH)を形成し得る基を意味する。たとえば、式(1)中のSiR3 nL3-nである。
「表面層」とは、基材の表面に形成される層を意味する。
含フッ素エーテル化合物の「数平均分子量」は、NMR分析法を用い、下記の方法で算出される。
1H-NMRおよび19F-NMRによって、末端基を基準にしてオキシペルフルオロアルキレン基の数(平均値)を求めることによって算出される。末端基は、たとえば式中のRf1またはSiR3 nL3-nである。
本発明の含フッ素エーテル化合物(以下、本化合物とも記す。)は、化合物(1)である。
[Rf-G-]aZ[-(O-R2)c-SiR3 nL3-n]b (1)
ただし、式(1)において、Rfは、ポリフルオロアルキル基の炭素原子-炭素原子間にエーテル性酸素原子を1つ以上有する、かつGまたはZと結合する炭素原子上にフッ素原子を1つ以上有する、炭素数2以上で直鎖状の基である。Gは、-R1-O-、-R1-CONH-、-CONH-または単結合である。R1は、アルキレン基である。Zは、(a+b)価の炭化水素基、または炭化水素基の炭素原子-炭素原子間にエーテル性酸素原子を1つ以上有する、炭素数2以上で(a+b)価の基である。R2は、アルキレン基である。R3は、水素原子または1価の炭化水素基である。Lは、加水分解性基である。nは、0~2の整数である。aは、1以上の整数である。bは、1以上の整数である。(a+b)は3以上である。aが1のときbは4以上であり、aが2以上のときbは1以上である。aが2以上のときa個の[Rf-G-]は、同一であっても異なっていてもよい。bが2以上のときb個の[-(O-R2)c-SiR3 nL3-n]は、同一であっても異なっていてもよい。cは0または1である。
また、Rfが分岐構造を有しないため、Rfが直鎖構造となる。該構造の化合物(1)によれば、表面層は耐摩擦性および潤滑性に優れる。一方、ポリ(オキシペルフルオロアルキレン)鎖が分岐構造を有する従来の含フッ素エーテル化合物では、表面層は耐摩擦性および潤滑性が不充分である。
Rf1O(Rf2O)m1(Rf3O)m2Rf4- (Rf-0)
ただし、式(Rf-0)において、Rf1は、m1が0のとき炭素数1~20で直鎖状のペルフルオロアルキル基であり、m1が1以上のとき炭素数1~20で直鎖状のペルフルオロアルキル基またはペルフルオロアルキル基の炭素原子-炭素原子間にエーテル性酸素原子を1つ以上有する炭素数2~20で直鎖状の基である。Rf2は、1つ以上の水素原子を有する、炭素数1~10で直鎖状のフルオロアルキレン基である。m1は、0~10の整数であり、m1が2以上のとき(Rf2O)m1は炭素数および水素数のいずれか一方または両方の異なる2種以上のRf2Oからなるものであってもよい。Rf3は、炭素数1~10で直鎖状のペルフルオロアルキレン基である。m2は、2~200の整数であり、(Rf3O)m2は、炭素数の異なる2種以上のRf3Oからなるものであってもよい。Rf4は、炭素数1~10で直鎖状のペルフルオロアルキレン基である。
Rf1としては、たとえば、CF3-、CF3CF2-、CF3CF2CF2-、CF3OCF2CF2-(ただし、m1が1以上のとき。)、CF3CF2OCF2CF2-(ただし、m1が1以上のとき。)、CF3CF2CF2OCF2CF2-(ただし、m1が1以上のとき。)等が挙げられる。
Rf2が水素原子を有することによって、化合物(1)の液状媒体への溶解性が高くなる。そのため、コーティング液中で化合物(1)が凝集しにくく、また、基材の表面に塗布した後、乾燥させる途中に化合物(1)が凝集しにくいため、表面層の外観にさらに優れる。
Rf2の炭素数としては、表面層の潤滑性および耐摩擦性にさらに優れる点からは、1~6が好ましく、1~3が特に好ましい。
(Rf2O)m1において、2種以上のRf2Oが存在する場合、各Rf2Oの結合順序は限定されない。
また、Rf3が直鎖状のペルフルオロアルキレン基であるため、(Rf3O)m2が直鎖構造となる。該構造の化合物(1)によれば、表面層の耐摩擦性および潤滑性に優れる。
(Rf3O)m2において、2種以上のRf3Oが存在する場合、各Rf3Oの結合順序は限定されない。たとえば、CF2OとCF2CF2Oが存在する場合、CF2OとCF2CF2Oがランダム、交互、ブロックに配置されてもよい。
ただし、m21は1以上の整数であり、m22は1以上の整数であり、m21+m22は2~200の整数であり、m21個のCF2Oおよびm22個のCF2CF2Oの結合順序は限定されない。m23およびm24は、2~200の整数であり、m25は、1~100の整数である。
Rf4が直鎖状である化合物(1)であれば、耐摩擦性および潤滑性に優れる表面層を形成できる。
Rf1O{(CF2O)m21(CF2CF2O)m22}CF2- (Rf-1)
Rf1OCHFCF2OCH2CF2O{(CF2O)m21(CF2CF2O)m22}CF2- (Rf-2)
Rf1O(CF2CF2OCF2CF2CF2CF2O)m25CF2CF2OCF2CF2CF2- (Rf-3)
ただし、式(Rf-1)~式(Rf-3)において、Rf1は炭素数1~20で直鎖状のペルフルオロアルキル基であり、m21およびm22はそれぞれ1以上の整数であり、m21+m22は2~200の整数であり、m21個のCF2Oおよびm22個のCF2CF2Oの結合順序は限定されず、m25は1~100の整数である。
Gとしては、化合物(1)の耐光性に優れる点からは、-R1-CONH-または-CONH-が好ましく、化合物(1)の耐薬品性に優れる点からは、-R1-O-が好ましい。
R1としては、化合物(1)の製造のしやすさの点から、炭素数1~4のアルキレン基が好ましく、-CH2-が特に好ましい。
Zとしては、たとえば、下式の基が挙げられる。
Zとしては、原料の入手容易性の点から、下式(Z-1)で表される基、下式(Z-2)で表される基、下式(Z-3)で表される基、下式(Z-4)で表される基または下式(Z-5)で表される基が特に好ましい。ただし、R4は、アルキル基であり、メチル基またはエチル基が好ましい。
R2としては、化合物(1)の製造のしやすさの点から、炭素数4~14のアルキレン基が好ましい。さらに、後述する化合物(1)の製造におけるヒドロシリル化の際に、アリル基(-CH2CH=CH2)の一部または全部がインナーオレフィン(-CH=CHCH3)に異性化した副生物が生成しにくい点から、炭素数4~10のアルキレン基が特に好ましい。
化合物(1)は、末端に加水分解性シリル基を有する。該構造の化合物(1)は基材と強固に化学結合する。
Lとしては、化合物(1)の製造のしやすさの点から、炭素数1~4のアルコキシ基またはハロゲン原子が好ましい。ハロゲン原子としては、塩素原子が特に好ましい。Lとしては、塗布時のアウトガスが少なく、化合物(1)の保存安定性に優れる点から、炭素数1~4のアルコキシ基が好ましく、化合物(1)の長期の保存安定性が必要な場合にはエトキシ基が特に好ましく、塗布後の反応時間を短時間とする場合にはメトキシ基が特に好ましい。
(a+b)は、3~15が好ましく、3~12が特に好ましい。
bが2以上のときb個の[-(O-R2)c-SiR3 nL3-n]は、同一であっても異なっていてもよい。
塩基性化合物の存在下、化合物(2)と化合物(3)とを反応させて粗生成物を得る。粗生成物は、aとbとの比が異なる複数種の化合物(4)を含む。粗生成物から公知の手段(カラム精製等)によってaとbとの比が所望の比である化合物(4)を分取する。
Z(OH)a+b (2)
X1-R21-CH=CH2 (3)
[HO-]aZ[-O-R21-CH=CH2]b (4)
ただし、X1は、ハロゲン原子であり、R21は、R2よりも炭素数が2つ少ないアルキレン基である。
[F3C-SO2-O-]aZ[-O-R21-CH=CH2]b (5)
Rf-R1-OH (6)
[Rf-R1-O-]aZ[-O-R21-CH=CH2]b (7)
HSiR3 nL3-n (8)
[Rf-R1-O-]aZ[-O-R2-SiR3 nL3-n]b (1)
a+bが4である化合物(2)としては、ジグリセリン、ペンタエリスリトール、ジトリメチロールプロパン等が挙げられる。
a+bが6である化合物(2)としては、ジペンタエリスリトール、ソルビトール、マンニトール、ズルシトール等が挙げられる。
化合物(3)としては、臭化アリル、5-ブロモ-1-ペンテン等が挙げられる。
化合物(6)は、たとえば、国際公開第2013/121984号、国際公開第2014/163004号、国際公開第2015/087902号等に記載の方法によって製造できる。
化合物(8)としては、トリメトキシシラン、トリエトキシシラン、メチルジメトキシシラン、トリクロロシラン等が挙げられる。
塩基性化合物の存在下、化合物(12)と化合物(3)とを反応させて化合物(13)を得る。
NC-(CH2)d-CN (12)
X1-R21-CH=CH2 (3)
NC-C(-R21-CH=CH2)2-(CH2)d-2-C(-R21-CH=CH2)2-CN (13)
ただし、dは、2以上の整数であり、X1は、ハロゲン原子であり、R21は、アルキレン基である。
NH2CH2-C(-R21-CH=CH2)2-(CH2)d-2-C(-R21-CH=CH2)2-CH2NH2 (14)
Rf-COX2 (15)
Rf-CONH-CH2-C(-R21-CH=CH2)2-(CH2)d-2-C(-R21-CH=CH2)2-CH2-NHCO-Rf (16)
ただし、X2は、ハロゲン原子またはアルコキシ基である。
Rf-CONH-CH2-C(-R21-CH2CH2-SiR3 nL3-n)2-(CH2)d-2-C(-R21-CH2CH2-SiR3 nL3-n)2-CH2-NHCO-Rf (1)
化合物(15)は、たとえば、国際公開第2013/121984号等に記載の方法によって製造できる。
化合物(17)と無水トリフルオロメタンスルホン酸とを2,6-ルチジン等の塩基性化合物の存在下に反応させて化合物(18)を得る。
(HO-CH2-)2C(-R22-CH=CH2)2 (17)
(F3C-SO2-O-CH2-)2C(-R22-CH=CH2)2 (18)
ただし、R22は、アルキレン基である。
(Rf-R1-O-CH2-)2C(-R22-CH=CH2)2 (19)
(Rf-R1-O-CH2-)2C(-R22-CH2CH2-SiR3 nL3-n)2 (1)
本発明において単一化合物である化合物(1)とは、Rfにおけるオキシペルフルオロアルキレン基の数以外は同一の化合物であることを意味する。たとえばRfが式(Rf-1)の場合、化合物(1)は通常、m21およびm22が異なる複数種の化合物(1)の混合物として製造されるが、このような場合であっても、m21およびm22が分布を有する一群の化合物群を1種類の化合物(1)と見なす。
本発明における含フッ素エーテル組成物(以下、本組成物とも記す。)は、化合物(1)と、化合物(1)以外の含フッ素エーテル化合物および下記不純物の少なくともいずれかとを含む組成物である。該不純物としては、本化合物および他の含フッ素エーテル化合物の製造上不可避の化合物等が挙げられる。なお、本組成物は、後述する液状媒体を含まない。
他の含フッ素エーテル化合物としては、化合物(1)の特性を低下させるおそれが少ない化合物が好ましい。
他の含フッ素エーテル化合物の含有量は、化合物(1)の特性を低下させるおそれが少ない量であることが好ましい。
公知の含フッ素エーテル化合物としては、市販の含フッ素エーテル化合物等が挙げられる。本組成物が公知の含フッ素エーテル化合物を含む場合、化合物(1)の特性を補う等の新たな作用効果が発揮される場合がある。
本組成物が他の含フッ素エーテル化合物を含む場合、本組成物中の本化合物および他の含フッ素エーテル化合物の合計に対する他の含フッ素エーテル化合物の割合は、40質量%以下が好ましく、30質量%以下がより好ましく、20質量%以下が特に好ましい。
本組成物中の本化合物および他の含フッ素エーテル化合物の合計の割合は、80質量%以上が好ましく、85質量%以上が特に好ましい。
本化合物および化合物(1)以外の含フッ素エーテル化合物の含有量が前記範囲内であれば、表面層の撥水撥油性、耐摩擦性、指紋汚れ除去性、潤滑性、外観に優れる。
本発明のコーティング液(以下、本コーティング液とも記す。)は、本化合物または本組成物と液状媒体とを含む。本コーティング液は、液状であればよく、溶液であってもよく、分散液であってもよい。
本コーティング液は、本化合物または本組成物を含んでいればよく、本化合物の製造工程で生成した副生物等の不純物を含んでもよい。
本化合物または本組成物の濃度は、本コーティング液中、0.001~10質量%が好ましく、0.1~1質量%が特に好ましい。
フッ素化アルカンとしては、炭素数4~8の化合物が好ましい。市販品としては、たとえばC6F13H(旭硝子社製、アサヒクリン(登録商標)AC-2000)、C6F13C2H5(旭硝子社製、アサヒクリン(登録商標)AC-6000)、C2F5CHFCHFCF3(ケマーズ社製、バートレル(登録商標)XF)等が挙げられる。
フッ素化芳香族化合物としては、たとえばヘキサフルオロベンゼン、トリフルオロメチルベンゼン、ペルフルオロトルエン、ビス(トリフルオロメチル)ベンゼン等が挙げられる。
フルオロアルキルエーテルとしては、炭素数4~12の化合物が好ましい。市販品としては、たとえばCF3CH2OCF2CF2H(旭硝子社製、アサヒクリン(登録商標)AE-3000)、C4F9OCH3(3M社製、ノベック(登録商標)7100)、C4F9OC2H5(3M社製、ノベック(登録商標)7200)、C2F5CF(OCH3)C3F7(3M社製、ノベック(登録商標)7300)等が挙げられる。
フッ素化アルキルアミンとしては、たとえばペルフルオロトリプロピルアミン、ペルフルオロトリブチルアミン等が挙げられる。
フルオロアルコールとしては、たとえば2,2,3,3-テトラフルオロプロパノール、2,2,2-トリフルオロエタノール、ヘキサフルオロイソプロパノール等が挙げられる。
非フッ素系有機溶媒としては、水素原子および炭素原子のみからなる化合物と、水素原子、炭素原子および酸素原子のみからなる化合物が好ましく、炭化水素系有機溶媒、アルコール系有機溶媒、ケトン系有機溶媒、エーテル系有機溶媒、エステル系有機溶媒が挙げられる。
本コーティング液は、液状媒体を90~99.999質量%含むことが好ましく、99~99.9質量%含むことが特に好ましい。
他の成分としては、たとえば、加水分解性シリル基の加水分解と縮合反応を促進する酸触媒や塩基性触媒等の公知の添加剤が挙げられる。
本コーティング液における、他の成分の含有量は、10質量%以下が好ましく、1質量%以下が特に好ましい。
本発明の物品は、本化合物または本組成物から形成される表面層を基材の表面に有する。
基材としては、タッチパネル用基材、ディスプレイ用基材が好適であり、タッチパネル用基材が特に好適である。タッチパネル用基材は、透光性を有する。「透光性を有する」とは、JIS R3106:1998(ISO 9050:1990)に準じた垂直入射型可視光透過率が25%以上であることを意味する。タッチパネル用基材の材料としては、ガラスまたは透明樹脂が好ましい。
・本化合物または本組成物を用いたドライコーティング法によって基材の表面を処理して、本発明の物品を得る方法。
・ウェットコーティング法によって本コーティング液を基材の表面に塗布し、乾燥させて、本発明の物品を得る方法。
表面処理後、表面層中の化合物であって他の化合物や基材と化学結合していない化合物は、必要に応じて除去してもよい。具体的な方法としては、たとえば、表面層に溶媒をかけ流す方法、溶媒をしみ込ませた布でふき取る方法等が挙げられる。
製品:カーナビゲーション、携帯電話、デジタルカメラ、デジタルビデオカメラ、携帯情報端末(PDA)、ポータブルオーディオプレーヤー、カーオーディオ、ゲーム機器、眼鏡レンズ、カメラレンズ、レンズフィルタ、サングラス、医療用器機(胃カメラ等)、複写機、パーソナルコンピュータ(PC)、液晶ディスプレイ、有機ELディスプレイ、プラズマディスプレイ、タッチパネルディスプレイ、保護フィルム、反射防止フィルム、反射防止ガラス、ナノインプリントのテンプレート、金型等。
以下、「%」は特に断りのない限り「質量%」である。また、2種以上の化合物(1)からなる混合物を「化合物」、化合物(1)と他の含フッ素エーテル化合物とからなるものを「組成物」と記す。
例1~13、16~30、33、34は実施例、例14、15、31、32は比較例である。
化合物(2)として、下記化合物を用意した。
化合物(2-1):ジペンタエリスリトール(ACROS社製)。
化合物(2-2):ペンタエリスリトール(関東化学社製)。
化合物(2-3):トリメチロールプロパン(東京化成工業社製)。
化合物(3-1):臭化アリル(東京化成工業社製)。
化合物(3-2):5-ブロモ-1-ペンテン(東京化成工業社製)。
化合物(6-1a):国際公開第2015/087902号の製造例6に記載の方法によって得られた化合物。
CF3CF2CF2O{(CF2O)m21(CF2CF2O)m22}CF2-CH2-OH (6-1a)
m21の平均値:21、m22の平均値:20、数平均分子量:4,200。
CF3CF2CF2OCHFCF2OCH2CF2O{(CF2O)m21(CF2CF2O)m22}CF2-CH2-OH (6-1b)
m21の平均値:21、m22の平均値:20、数平均分子量:4,150。
CF3O(CF2CF2OCF2CF2CF2CF2O)m25CF2CF2OCF2CF2CF2-CH2-OH (6-1c)
m25の平均値:13、数平均分子量:4,700。
化合物(8-1):トリメトキシシラン(東京化成工業社製)。
化合物(9-1):ソルベイ社製、FLUOROLINK(登録商標)D4000。
HO-CH2-CF2O{(CF2O)m21(CF2CF2O)m22}CF2-CH2-OH (9-1)
m21の平均値:21、m22の平均値:20。
CF3CF2CF2O(CF(CF3)CF2O)m26CF(CF3)-CH2-OH (9-2)
m26の平均値:6。
化合物(12-1):アジポニトリル(東京化成工業社製)。
化合物(15-1c):国際公開第2013/121984号の実施例6に記載の方法によって得られた化合物。
CF3O(CF2CF2OCF2CF2CF2CF2O)m25CF2CF2OCF2CF2CF2-COOCH3 (15-1c)
m25の平均値:13、数平均分子量:4,700。
化合物(17-1):2,2-ジアリル-1,3-プロパンジオール(ジエチルジアリルマロネート(東京化成工業社製)を原料として、Journal of the American Chemical Society,135(7),2635-2640(2013)に記載の方法に従って合成した。)
化合物(1-1)のRfが式(Rf-1)で表される基である化合物(化合物(1-1a))の製造:
原料の化合物(2)、化合物(3)、化合物(6)を表1に示す化合物に変更し、分取される化合物(4)におけるaとbとの比を表1に示す比とし、各化合物が有する反応性官能基の数に応じて各化合物の仕込みモル数を変更した以外は、例1と同様にして化合物(1)もしくはそれを含む組成物、または比較例の化合物(11)を含む組成物を得た。化合物(1)および化合物(11)の構造を表1に示す。
表中の化合物(11-1)を下式に示す。
表中のQおよび(Rf-4)を下式に示す。
-CF2O{(CF2O)m21(CF2CF2O)m22}CF2- (Q)
CF3CF2CF2O(CF(CF3)CF2O)m26CF(CF3)- (Rf-4)
化合物(1-1a)のNMRスペクトル:
1H-NMR(300.4MHz、溶媒:CDCl3、基準:テトラメチルシラン(TMS)) δ(ppm):0.7(10H)、1.7(10H)、3.2~3.8(73H)。
19F-NMR(282.7MHz、溶媒:CDCl3、基準:CFCl3) δ(ppm):-52.4~-55.7(42F)、-77.2(1F)、-79.4(1F)、-82.2(3F)、-89.4~-91.1(90F)、-130.5(2F)。
m21の平均値:21、m22の平均値:20、数平均分子量:5,250。
1H-NMR(300.4MHz、溶媒:CDCl3、基準:TMS) δ(ppm):0.7(10H)、1.7(10H)、3.2~3.8(73H)、4.2(2H)、5.8~6.0(1H)。
19F-NMR(282.7MHz、溶媒:CDCl3、基準:CFCl3) δ(ppm):-51.2~-54.6(42F)、-77.2(1F)、-77.7(1F)、-79.3(1F)、-79.7(1F)、-81.2(3F)、-84.3~-87.2(2F)、-87.9~-91.0(82F)、-129.4(2F)、-144.1(1F)。
m21の平均値:21、m22の平均値:20、数平均分子量:5,200。
1H-NMR(300.4MHz、溶媒:CDCl3、基準:TMS) δ(ppm):0.7(10H)、1.7(10H)、3.2~4.0(73H)。
19F-NMR(282.7MHz、溶媒:CDCl3、基準:CFCl3) δ(ppm):-55.1(3F)、-82.6(54F)、-87.9(54F)、-90.0(2F)、-119.3(2F)、-125.0(52F)、-126.1(2F)。
m25の平均値:13、数平均分子量:5,750。
1H-NMR(300.4MHz、溶媒:CDCl3、基準:TMS) δ(ppm):0.7(10H)、1.3~1.8(30H)、3.2~3.9(73H)。
19F-NMR(282.7MHz、溶媒:CDCl3、基準:CFCl3) δ(ppm):-52.4~-55.7(42F)、-77.2(1F)、-79.4(1F)、-82.2(3F)、-89.4~-91.1(90F)、-130.5(2F)。
m21の平均値:21、m22の平均値:20、数平均分子量:5,390。
1H-NMR(300.4MHz、溶媒:CDCl3、基準:TMS) δ(ppm):0.7(10H)、1.3~1.8(30H)、3.2~3.9(73H)、4.2(2H)、5.8~6.0(1H)。
19F-NMR(282.7MHz、溶媒:CDCl3、基準:CFCl3) δ(ppm):-51.2~-54.6(42F)、-77.2(1F)、-77.7(1F)、-79.3(1F)、-79.7(1F)、-81.2(3F)、-84.3~-87.2(2F)、-87.9~-91.0(82F)、-129.4(2F)、-144.1(1F)。
m21の平均値:21、m22の平均値:20、数平均分子量:5,340。
1H-NMR(300.4MHz、溶媒:CDCl3、基準:TMS) δ(ppm):0.7(10H)、1.3~1.8(30H)、3.2~4.0(73H)。
19F-NMR(282.7MHz、溶媒:CDCl3、基準:CFCl3) δ(ppm):-55.1(3F)、-82.6(54F)、-87.9(54F)、-90.0(2F)、-119.3(2F)、-125.0(52F)、-126.1(2F)。
m25の平均値:13、数平均分子量:5,890。
1H-NMR(300.4MHz、溶媒:CDCl3、基準:TMS) δ(ppm):0.7(8H)、1.3~1.8(24H)、3.2~3.9(64H)。
19F-NMR(282.7MHz、溶媒:CDCl3、基準:CFCl3) δ(ppm):-52.4~-55.7(84F)、-77.2(2F)、-79.4(2F)、-82.2(6F)、-89.4~-91.1(180F)、-130.5(4F)。
m21の平均値:21、m22の平均値:20、数平均分子量:9,390。
1H-NMR(300.4MHz、溶媒:CDCl3、基準:TMS) δ(ppm):0.7(8H)、1.3~1.8(24H)、3.2~3.9(64H)、4.2(4H)、5.8~6.0(2H)。
19F-NMR(282.7MHz、溶媒:CDCl3、基準:CFCl3) δ(ppm):-51.2~-54.6(84F)、-77.2(2F)、-77.7(2F)、-79.3(2F)、-79.7(2F)、-81.2(6F)、-84.3~-87.2(4F)、-87.9~-91.0(164F)、-129.4(4F)、-144.1(2F)。
m21の平均値:21、m22の平均値:20、数平均分子量:9,280。
1H-NMR(300.4MHz、溶媒:CDCl3、基準:TMS) δ(ppm):0.7(8H)、1.3~1.8(24H)、3.2~4.0(64H)。
19F-NMR(282.7MHz、溶媒:CDCl3、基準:CFCl3) δ(ppm):-55.1(6F)、-82.6(108F)、-87.9(108F)、-90.0(4F)、-119.3(4F)、-125.0(104F)、-126.1(4F)。
m25の平均値:13、数平均分子量:10,380。
1H-NMR(300.4MHz、溶媒:CDCl3、基準:TMS) δ(ppm):0.7(4H)、1.3~1.8(12H)、3.2~3.9(34H)。
19F-NMR(282.7MHz、溶媒:CDCl3、基準:CFCl3) δ(ppm):-52.4~-55.7(84F)、-77.2(2F)、-79.4(2F)、-82.2(6F)、-89.4~-91.1(180F)、-130.5(4F)。
m21の平均値:21、m22の平均値:20、数平均分子量:8,890。
1H-NMR(300.4MHz、溶媒:CDCl3、基準:TMS) δ(ppm):0.7(4H)、1.3~1.8(12H)、3.2~4.0(34H)。
19F-NMR(282.7MHz、溶媒:CDCl3、基準:CFCl3) δ(ppm):-55.1(6F)、-82.6(108F)、-87.9(108F)、-90.0(4F)、-119.3(4F)、-125.0(104F)、-126.1(4F)。
m25の平均値:13、数平均分子量:9,880。
1H-NMR(300.4MHz、溶媒:CDCl3、基準:TMS) δ(ppm):0.7(2H)、0.9(3H)、1.3~1.8(8H)、3.2~3.9(21H)。
19F-NMR(282.7MHz、溶媒:CDCl3、基準:CFCl3) δ(ppm):-52.4~-55.7(84F)、-77.2(2F)、-79.4(2F)、-82.2(6F)、-89.4~-91.1(180F)、-130.5(4F)。
m21の平均値:21、m22の平均値:20、数平均分子量:8,700。
1H-NMR(300.4MHz、溶媒:CDCl3、基準:TMS) δ(ppm):0.7(2H)、0.9(3H)、1.3~1.8(8H)、3.2~4.0(21H)。
19F-NMR(282.7MHz、溶媒:CDCl3、基準:CFCl3) δ(ppm):-55.1(6F)、-82.6(108F)、-87.9(108F)、-90.0(4F)、-119.3(4F)、-125.0(104F)、-126.1(4F)。
m25の平均値:13、数平均分子量:9,680。
1H-NMR(300.4MHz、溶媒:CDCl3、基準:TMS) δ(ppm):0.7(20H)、1.7(20H)、3.2~3.8(146H)。
19F-NMR(282.7MHz、溶媒:CDCl3、基準:CFCl3) δ(ppm):-52.4~-55.7(42F)、-77.2(2F)、-79.4(2F)、-89.4~-91.1(80F)。
m21の平均値:21、m22の平均値:20、数平均分子量:5,960。
1H-NMR(300.4MHz、溶媒:CDCl3、基準:TMS) δ(ppm):0.7(10H)、1.7(10H)、3.2~3.8(71H)。
19F-NMR(282.7MHz、溶媒:CDCl3、基準:CFCl3) δ(ppm):-78.4~-82.2(38F)、-129.4(2F)、-131.1(1F)、-144.2(6F)。
m26の平均値:6、数平均分子量:2,360。
化合物(1-7)のRfが式(Rf-3)で表される基である化合物(化合物(1-7c))の製造:
化合物(13-1)のNMRスペクトル:
1H-NMR(300.4MHz、溶媒:CDCl3、基準:TMS) δ(ppm):1.7(4H)、2.3(8H)、5.2(8H)、5.8(4H)。
化合物(14-1)のNMRスペクトル:
1H-NMR(300.4MHz、溶媒:CDCl3、基準:TMS) δ(ppm):1.1(4H)、1.2(4H)、2.0(4H)、2.5(8H)、5.0(8H)、5.8(4H)。
化合物(16-1c)のNMRスペクトル:
1H-NMR(300.4MHz、溶媒:CDCl3、基準:TMS) δ(ppm):1.4(4H)、2.1(8H)、3.3(4H)、5.1(8H)、5.9(4H)。
19F-NMR(282.7MHz、溶媒:CDCl3、基準:CFCl3) δ(ppm):-55.3(6F)、-82.8(108F)、-88.1(108F)、-90.2(4F)、-119.3(4F)、-125.3(108F)。
m25平均値:13、数平均分子量:9,660。
化合物(1―7c)のNMRスペクトル:
1H-NMR(300.4MHz、溶媒:CDCl3、基準:TMS) δ(ppm):0.7(8H)、1.3~1.4(12H)、1.6(8H)、3.3(4H)、3.7(36H)。
19F-NMR(282.7MHz、溶媒:CDCl3、基準:CFCl3) δ(ppm):-55.2(6F)、-82.8(108F)、-88.0(108F)、-90.2(4F)、-118.8(4F)、-125.2(108F)。
m25平均値:13、数平均分子量:10,100。
化合物(1-8)のRfが式(Rf-3)で表される基である化合物(化合物(1-8c))の製造:
化合物(18-1)のNMRスペクトル:
1H-NMR(300.4MHz、溶媒:CDCl3、基準:TMS) δ(ppm):2.1(4H)、4.3(4H)、5.3(4H)、5.7(2H)。
19F-NMR(282.7MHz、溶媒:CDCl3、基準:CFCl3) δ(ppm):-74.0(6F)。
化合物(19-1c)のNMRスペクトル:
1H-NMR(300.4MHz、溶媒:CDCl3、基準:TMS) δ(ppm):2.0(4H)、3.4(4H)、3.9(4H)、5.1(4H)、5.8(2H)。
19F-NMR(282.7MHz、溶媒:CDCl3、基準:CFCl3) δ(ppm):-55.2(6F)、-82.7(108F)、-88.0(108F)、-90.1(4F)、-119.4(4F)、-125.1(104F)、-126.2(4F)。
m25平均値:13、数平均分子量:9,520。
化合物(1-8c)のNMRスペクトル:
1H-NMR(300.4MHz、溶媒:CDCl3、基準:TMS) δ(ppm):2.0(4H)、3.4(4H)、3.9(4H)、5.1(4H)、5.8(2H)。0.7(4H)、1.5-1.7(8H)、3.4-3.8(26H)。
19F-NMR(282.7MHz、溶媒:CDCl3、基準:CFCl3) δ(ppm):-55.2(6F)、-82.7(108F)、-88.0(108F)、-90.1(4F)、-119.4(4F)、-125.1(104F)、-126.2(4F)。
m25平均値:13、数平均分子量:9,760。
例1~17で得た各化合物または組成物を用いて基材の表面処理を行い、例18~34の物品を得た。表面処理方法として、各例について下記のドライコーティング法およびウェットコーティング法をそれぞれ用いた。基材としては化学強化ガラスを用いた。得られた物品について、下記の方法で評価した。結果を表2~5に示す。
ドライコーティングは、真空蒸着装置(昭和真空社製、SGC-22WA)を用いて行った(真空蒸着法)。例1~17で得た各化合物または組成物の35mgを真空蒸着装置内のモリブデン製ボートに充填し、真空蒸着装置内を5×10-3Pa以下に排気した。各化合物または組成物を配置したボートを加熱し、各化合物または組成物を基材の表面に堆積することによって、基材の表面に蒸着膜を形成した。蒸着膜が形成された基材を、温度:25℃、湿度:40%の条件で一晩放置し、基材の表面に表面層を有する物品を得た。
例1~17で得た各化合物または組成物と、液状媒体としてのAC-6000とを混合して、固形分濃度0.1%のコーティング液を調製した。スプレー塗布装置(ノードソン社製)を用い、コーティング液を基材に塗布することによって、基材の表面に塗布膜を形成した。塗布膜が形成された基材を、120℃で20分間焼成し、基材の表面に表面層を有する物品を得た。
<接触角の測定方法>
表面層の表面に置いた、約2μLの蒸留水またはn-ヘキサデカンの接触角を、接触角測定装置(協和界面科学社製、DM-500)を用いて測定した。表面層の表面における異なる5箇所で測定を行い、その平均値を算出した。接触角の算出には2θ法を用いた。
表面層について、初期水接触角および初期n-ヘキサデカン接触角を前記測定方法で測定した。評価基準は下記のとおりである。
初期水接触角:
◎(優) :115度以上。
○(良) :110度以上115度未満。
△(可) :100度以上110度未満。
×(不可):100度未満。
初期n-ヘキサデカン接触角:
◎(優) :66度以上。
○(良) :65度以上66度未満。
△(可) :63度以上65度未満。
×(不可):63度未満。
表面層について、JIS L0849:2013(ISO 105-X12:2001)に準拠して往復式トラバース試験機(ケイエヌテー社製)を用い、スチールウールボンスター(♯0000)を圧力:98.07kPa、速度:320cm/分で5千回往復させた後、水接触角を測定した。摩擦後の撥水性(水接触角)の低下が小さいほど摩擦による性能の低下が小さく、耐摩擦性に優れる。評価基準は下記のとおりである。
◎(優) :5千回往復後の水接触角の変化が5度以下。
○(良) :5千回往復後の水接触角の変化が5度超10度以下。
△(可) :5千回往復後の水接触角の変化が10度超20度以下。
×(不可):5千回往復後の水接触角の変化が20度超。
表面層について、JIS L0849:2013(ISO 105-X12:2001)に準拠して往復式トラバース試験機(ケイエヌテー社製)を用い、Rubber Eraser(Minoan社製)を荷重:4.9N、速度:60rpmで1万回往復させた後、水接触角を測定した。摩擦後の撥水性(水接触角)の低下が小さいほど摩擦による性能の低下が小さく、耐摩擦性に優れる。評価基準は下記のとおりである。
◎(優) :1万回往復後の水接触角の変化が5度以下。
○(良) :1万回往復後の水接触角の変化が5度超10度以下。
△(可) :1万回往復後の水接触角の変化が10度超20度以下。
×(不可):1万回往復後の水接触角の変化が20度超。
物品のヘーズをヘーズメータ(東洋精機社製)にて測定した。ヘーズが小さいほど含フッ素エーテル化合物が均一に塗布できており、外観に優れる。評価基準は下記のとおりである。
◎(優) :ヘーズが0.1%以下。
○(良) :ヘーズが0.1%超0.2%以下。
△(可) :ヘーズが0.2%超0.3%以下。
×(不可):ヘーズが0.3%超。
人工指紋液(オレイン酸とスクアレンとからなる液)を、シリコンゴム栓の平坦面に付着させた後、余分な油分を不織布(旭化成社製、ベンコット(登録商標)M-3)にて拭き取ることによって、指紋のスタンプを準備した。該指紋スタンプを表面層上に乗せ、荷重:9.8Nにて10秒間押しつけた。指紋が付着した箇所のヘーズをヘーズメータにて測定し、初期値とした。指紋が付着した箇所について、ティッシュペーパーを取り付けた往復式トラバース試験機(ケイエヌテー社製)を用い、荷重:4.9Nにて拭き取りを行った。拭き取り一往復毎にヘーズの値を測定し、ヘーズが初期値から10%以下になる拭き取り回数を測定した。拭き取り回数が少ないほど指紋汚れを容易に除去でき、指紋汚れ拭き取り性に優れる。評価基準は下記のとおりである。
◎(優) :拭き取り回数が3回以下。
○(良) :拭き取り回数が4~5回。
△(可) :拭き取り回数が6~8回。
×(不可):拭き取り回数が9回以上。
表面層に対し、卓上型キセノンアークランプ式促進耐光性試験機(東洋精機社製、SUNTEST XLS+)を用いて、ブラックパネル温度:63℃にて、光線(650W/m2、300~700nm)を500時間照射した後、水接触角を測定した。促進耐光試験後の水接触角の低下が小さいほど光による性能の低下が小さく、耐光性に優れる。評価基準は下記のとおりである。
◎(優) :促進耐光試験後の水接触角の変化が5度以下。
○(良) :促進耐光試験後の水接触角の変化が5度超10度以下。
△(可) :促進耐光試験後の水接触角の変化が10度超20度以下。
×(不可):促進耐光試験後の水接触角の変化が20度超。
人工皮膚(出光テクノファイン社製、PBZ13001)に対する表面層の動摩擦係数を、荷重変動型摩擦摩耗試験システム(新東科学社製、HHS2000)を用い、接触面積:3cm×3cm、荷重:0.98Nの条件で測定した。動摩擦係数が小さいほど潤滑性に優れる。評価基準は下記のとおりである。
◎(優) :動摩擦係数が0.3以下。
○(良) :動摩擦係数が0.3超0.4以下。
△(可) :動摩擦係数が0.4超0.5以下。
×(不可):動摩擦係数が0.5超。
両末端に加水分解性シリル基を有する化合物(11-1)を含む組成物を用いた例31では、耐摩擦性、外観、指紋汚れ除去性および耐光性に劣った。指紋拭き取り性が劣る理由は、未反応の末端基が表面物性を低下させているためと考えられる。外観および耐摩擦性が劣る理由は、末端の非フッ素部分の凝集による均一性の低下によると考えられる。耐摩擦性が劣る理由は、両末端が基材に固定化されるためと考えられる。
ポリ(オキシペルフルオロアルキレン)鎖が分岐構造を有する化合物(11-2)を含む組成物を用いた例32では、分岐構造を有することによる分子運動性の低下によって潤滑性が大幅に低下し、それが一因で耐摩擦性も大きく低下したと考えられる。
なお、2016年04月25日に出願された日本特許出願2016-087043号および2016年08月15日に出願された日本特許出願2016-159202号の明細書、特許請求の範囲および要約書の全内容をここに引用し、本発明の明細書の開示として、取り入れるものである。
Claims (14)
- 下式(1)で表される、含フッ素エーテル化合物。
[Rf-G-]aZ[-(O-R2)c-SiR3 nL3-n]b (1)
ただし、
Rfは、ポリフルオロアルキル基の炭素原子-炭素原子間にエーテル性酸素原子を1つ以上有する、かつGまたはZと結合する炭素原子上にフッ素原子を1つ以上有する、炭素数2以上で直鎖状の基であり、
Gは、-R1-O-、-R1-CONH-、-CONH-または単結合であり、
R1は、アルキレン基であり、
Zは、(a+b)価の炭化水素基、または炭化水素基の炭素原子-炭素原子間にエーテル性酸素原子を1つ以上有する、炭素数2以上で(a+b)価の基であり、
R2は、アルキレン基であり、
R3は、水素原子または1価の炭化水素基であり、
Lは、加水分解性基であり、
nは、0~2の整数であり、
aは、1以上の整数であり、
bは、1以上の整数であり、
(a+b)は3以上であり、
aが1のときbは4以上であり、aが2以上のときbは1以上であり、
aが2以上のときa個の[Rf-G-]は、同一であっても異なっていてもよく、
bが2以上のときb個の[-(O-R2)c-SiR3 nL3-n]は、同一であっても異なっていてもよく、
cは、0または1である。 - 前記R2が、炭素数4~14のアルキレン基である、請求項1に記載の含フッ素エーテル化合物。
- 前記R1が、-CH2-である、請求項1~3のいずれか一項に記載の含フッ素エーテル化合物。
- 前記Rfが、下式(Rf-0)で表される基である、請求項1~4のいずれか一項に記載の含フッ素エーテル化合物。
Rf1O(Rf2O)m1(Rf3O)m2Rf4- (Rf-0)
ただし、
Rf1は、m1が0のとき炭素数1~20で直鎖状のペルフルオロアルキル基であり、m1が1以上のとき炭素数1~20で直鎖状のペルフルオロアルキル基、またはペルフルオロアルキル基の炭素原子-炭素原子間にエーテル性酸素原子を1つ以上有する、炭素数2~20で直鎖状の基であり、
Rf2は、1つ以上の水素原子を有する、炭素数1~10で直鎖状のフルオロアルキレン基であり、
m1は、0~10の整数であり、m1が2以上のとき(Rf2O)m1は炭素数および水素数のいずれか一方または両方の異なる2種以上のRf2Oからなるものであってもよく、
Rf3は、炭素数1~10で直鎖状のペルフルオロアルキレン基であり、
m2は、2~200の整数であり、(Rf3O)m2は、炭素数の異なる2種以上のRf3Oからなるものであってもよく、
Rf4は、炭素数1~10で直鎖状のペルフルオロアルキレン基である。 - 前記Rfが、ペルフルオロアルキル基の炭素原子-炭素原子間にエーテル性酸素原子を1つ以上有する、炭素数2以上で直鎖状の基である、請求項1~4のいずれか一項に記載の含フッ素エーテル化合物。
- 前記Rfが、下式(Rf-1)で表される基、下式(Rf-2)で表される基、または下式(Rf-3)で表される基である、請求項1~4のいずれか一項に記載の含フッ素エーテル化合物。
Rf1O{(CF2O)m21(CF2CF2O)m22}CF2- (Rf-1)
Rf1OCHFCF2OCH2CF2O{(CF2O)m21(CF2CF2O)m22}CF2- (Rf-2)
Rf1O(CF2CF2OCF2CF2CF2CF2O)m25CF2CF2OCF2CF2CF2- (Rf-3)
ただし、
Rf1は、炭素数1~20のペルフルオロアルキル基であり、
m21およびm22は、それぞれ1以上の整数であり、m21+m22は、2~200の整数であり、m21個のCF2Oおよびm22個のCF2CF2Oの結合順序は限定されず、
m25は、1~100の整数である。 - 数平均分子量が、1,000~30,000である、請求項1~7のいずれか一項に記載の含フッ素エーテル化合物。
- 請求項1~8のいずれか一項に記載の含フッ素エーテル化合物と、液状媒体とを含むことを特徴とするコーティング液。
- 請求項1~8のいずれか一項に記載の含フッ素エーテル化合物から形成された表面層を有することを特徴とする物品。
- 請求項1~8のいずれか一項に記載の含フッ素エーテル化合物を用いて、ドライコーティング法により基材の表面を処理して、前記含フッ素エーテル化合物から形成された表面層を有する物品を製造することを特徴とする物品の製造方法。
- 請求項9に記載のコーティング液を用いて、ウェットコーティング法により基材の表面を処理して、含フッ素エーテル化合物から形成された表面層を有する物品を製造することを特徴とする物品の製造方法。
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Also Published As
Publication number | Publication date |
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TW201816063A (zh) | 2018-05-01 |
US20190040266A1 (en) | 2019-02-07 |
CN109071797B (zh) | 2020-12-29 |
JPWO2017187775A1 (ja) | 2019-03-22 |
KR20180138203A (ko) | 2018-12-28 |
US10696848B2 (en) | 2020-06-30 |
CN109071797A (zh) | 2018-12-21 |
JP6711398B2 (ja) | 2020-06-17 |
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