WO2023062933A1 - ポリシロキサン化合物及びその製造方法 - Google Patents
ポリシロキサン化合物及びその製造方法 Download PDFInfo
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- WO2023062933A1 WO2023062933A1 PCT/JP2022/030943 JP2022030943W WO2023062933A1 WO 2023062933 A1 WO2023062933 A1 WO 2023062933A1 JP 2022030943 W JP2022030943 W JP 2022030943W WO 2023062933 A1 WO2023062933 A1 WO 2023062933A1
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- polysiloxane compound
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 136
- -1 Polysiloxane Polymers 0.000 title claims abstract description 87
- 229920001296 polysiloxane Polymers 0.000 title claims abstract description 77
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 21
- 239000012567 medical material Substances 0.000 claims abstract description 21
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 14
- 125000001931 aliphatic group Chemical group 0.000 claims abstract description 10
- 229920000642 polymer Polymers 0.000 claims description 23
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 15
- 238000006459 hydrosilylation reaction Methods 0.000 claims description 14
- 239000000017 hydrogel Substances 0.000 claims description 12
- 238000006116 polymerization reaction Methods 0.000 claims description 9
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 7
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 3
- 125000001183 hydrocarbyl group Chemical group 0.000 claims 4
- 125000004122 cyclic group Chemical group 0.000 abstract description 5
- 239000000178 monomer Substances 0.000 description 21
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- 239000002904 solvent Substances 0.000 description 14
- 230000015572 biosynthetic process Effects 0.000 description 13
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- 230000000052 comparative effect Effects 0.000 description 10
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- 210000004087 cornea Anatomy 0.000 description 2
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- 238000005520 cutting process Methods 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- SBZXBUIDTXKZTM-UHFFFAOYSA-N diglyme Chemical compound COCCOCCOC SBZXBUIDTXKZTM-UHFFFAOYSA-N 0.000 description 1
- 235000019304 dilauryl thiodipropionate Nutrition 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- PWWSSIYVTQUJQQ-UHFFFAOYSA-N distearyl thiodipropionate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCCCCCCCC PWWSSIYVTQUJQQ-UHFFFAOYSA-N 0.000 description 1
- 235000019305 distearyl thiodipropionate Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003759 ester based solvent Substances 0.000 description 1
- 239000004210 ether based solvent Substances 0.000 description 1
- 229940093499 ethyl acetate Drugs 0.000 description 1
- 229940116333 ethyl lactate Drugs 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- MNWFXJYAOYHMED-UHFFFAOYSA-M heptanoate Chemical compound CCCCCCC([O-])=O MNWFXJYAOYHMED-UHFFFAOYSA-M 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-M hexanoate Chemical compound CCCCCC([O-])=O FUZZWVXGSFPDMH-UHFFFAOYSA-M 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 238000004128 high performance liquid chromatography Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- TUJKJAMUKRIRHC-UHFFFAOYSA-N hydroxyl Chemical compound [OH] TUJKJAMUKRIRHC-UHFFFAOYSA-N 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229940035429 isobutyl alcohol Drugs 0.000 description 1
- 239000005453 ketone based solvent Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- GBMDVOWEEQVZKZ-UHFFFAOYSA-N methanol;hydrate Chemical compound O.OC GBMDVOWEEQVZKZ-UHFFFAOYSA-N 0.000 description 1
- 229940095102 methyl benzoate Drugs 0.000 description 1
- WBYWAXJHAXSJNI-UHFFFAOYSA-N methyl p-hydroxycinnamate Natural products OC(=O)C=CC1=CC=CC=C1 WBYWAXJHAXSJNI-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- OVHHHVAVHBHXAK-UHFFFAOYSA-N n,n-diethylprop-2-enamide Chemical compound CCN(CC)C(=O)C=C OVHHHVAVHBHXAK-UHFFFAOYSA-N 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- NWVVVBRKAWDGAB-UHFFFAOYSA-N p-methoxyphenol Chemical compound COC1=CC=C(O)C=C1 NWVVVBRKAWDGAB-UHFFFAOYSA-N 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 239000002530 phenolic antioxidant Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229940079877 pyrogallol Drugs 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- UWHCKJMYHZGTIT-UHFFFAOYSA-N tetraethylene glycol Chemical compound OCCOCCOCCOCCO UWHCKJMYHZGTIT-UHFFFAOYSA-N 0.000 description 1
- 238000012719 thermal polymerization Methods 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- JLGLQAWTXXGVEM-UHFFFAOYSA-N triethylene glycol monomethyl ether Chemical compound COCCOCCOCCO JLGLQAWTXXGVEM-UHFFFAOYSA-N 0.000 description 1
- YFNKIDBQEZZDLK-UHFFFAOYSA-N triglyme Chemical compound COCCOCCOCCOC YFNKIDBQEZZDLK-UHFFFAOYSA-N 0.000 description 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/04—Contact lenses for the eyes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F230/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal
- C08F230/04—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal containing a metal
- C08F230/08—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal containing a metal containing silicon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/08—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated side groups
- C08F290/14—Polymers provided for in subclass C08G
Definitions
- the present invention relates to a polysiloxane compound and a method for producing the same.
- Monomers containing siloxane have been known as compounds used in medical materials such as ophthalmic devices.
- 3-[tris(trimethylsiloxy)silyl]propyl methacrylate (TRIS) is widely used as a monomer for ophthalmic devices.
- TRIS tris(trimethylsiloxy)silyl]propyl methacrylate
- Polymers obtained by copolymerizing TRIS with the hydrophilic monomers N,N-dimethylacrylamide and N-vinyl-2-pyrrolidone have the beneficial feature of high oxygen permeability.
- highly hydrophobic siloxane monomers cannot be said to be highly compatible with these hydrophilic monomers, and there is a problem that phase separation occurs when hydrogels that are used as medical materials are produced, resulting in cloudiness. .
- Patent Document 1 describes siloxanes having glycerol methacrylate represented by the following formulas (a) and (a'). Further, Patent Document 2 describes siloxanes having glycerol methacrylate represented by the following formulas (b) and (b'). Further, Patent Document 3 describes a siloxane having an alicyclic methacrylate represented by the following formula (c). These compounds exhibit good hydrophilicity because they have hydroxyl groups in their molecules. Therefore, it has the advantage of being excellent in compatibility with hydrophilic monomers.
- An object of the present invention is to provide a polysiloxane compound suitable for medical materials and a method for producing the same.
- the present invention provides a polysiloxane compound containing one cycloaliphatic hydrocarbon group having 8 to 20 carbon atoms in one molecule, wherein the cycloaliphatic hydrocarbon group is an aliphatic
- a polysiloxane compound having a (meth)acryloxy group and a tertiary hydroxyl group on the ring is provided.
- Such a polysiloxane compound can be suitably used as a medical material.
- the polysiloxane compound is preferably a compound represented by the following formula (1).
- R1 is a methyl group or a hydrogen atom
- A is a group represented by the following formula (2) or (3).
- R is independently a monovalent hydrocarbon group having 1 to 6 carbon atoms
- n is an integer of 1 to 200.
- the dashed line represents a bond.
- R is as described above, a is an integer from 0 to 10, b is an integer from 0 to 10, c is an integer from 0 to 10, provided that a+b+c is 2 or more. represents a hand.
- Such a polysiloxane compound can be suitably used as a medical material.
- A is represented by the above formula (2) and n is an integer of 4 to 100 in the above formula (1).
- Such a polysiloxane compound can be more suitably used as a medical material.
- A is represented by the above formula (3), a is 1, b is 1, and c is 0 in the above formula (1).
- Such a polysiloxane compound can be more suitably used for medical materials.
- R 1 is preferably a methyl group.
- Such a polysiloxane compound of the present invention is preferred.
- each R in formula (2) or (3) is independently a methyl group or a butyl group.
- Such a polysiloxane compound of the present invention is more preferable.
- the present invention also provides a polymer containing a repeating unit derived from polymerization of the (meth)acryloxy group of the polysiloxane compound described above.
- Such a polymer has good compatibility with other compounds having polymerizable groups such as (meth)acryloxy groups.
- the mass ratio of the repeating unit is 10% by mass or more with respect to the total mass of the polymer.
- the present invention also provides a hydrogel or medical material containing the polymer described above.
- the polymer of the present invention can be suitably used for such applications.
- a method for producing a polysiloxane compound represented by the following formula (1) (In formula (1), R1 is a methyl group or a hydrogen atom, and A is a group represented by the following formula (2) or (3).)
- R is independently a monovalent hydrocarbon group having 1 to 6 carbon atoms, and n is an integer of 1 to 200.
- the dashed line represents a bond.
- R is as described above, a is an integer from 0 to 10, b is an integer from 0 to 10, c is an integer from 0 to 10, provided that a+b+c is 2 or more.
- the polysiloxane compound of the present invention has a cyclic aliphatic hydrocarbon group substituted with a tertiary hydroxyl group, it has excellent compatibility with hydrophilic monomers and unexpected hardness when used as a medical material. No increase or loss of flexibility. Furthermore, the (co)polymer containing repeating units derived from the polymerization of the (meth)acryloxy groups of the polysiloxane compound of the present invention has favorable strength.
- the polysiloxane compound of the present invention is useful as a monomer for medical materials.
- the present inventors have made intensive studies to solve the above problems, and found that a polysiloxane compound having a cyclic aliphatic hydrocarbon group substituted with a tertiary hydroxyl group has excellent compatibility with other hydrophilic monomers. I found out. They also found that a (co)polymer of the (poly)siloxane compound and a hydrophilic monomer has excellent flexibility.
- the present invention provides a polysiloxane compound containing one cycloaliphatic hydrocarbon group having 8 to 20 carbon atoms in one molecule, wherein (meth)
- the present invention relates to a polysiloxane compound having an acryloxy group and a tertiary hydroxyl group, and particularly to a polysiloxane compound represented by the following formula (1).
- R1 is a methyl group or a hydrogen atom
- A is a group represented by the following formula (2) or (3).
- R is independently a monovalent hydrocarbon group having 1 to 6 carbon atoms, and n is an integer of 1 to 200.
- the dashed line represents a bond.
- R is as described above, a is an integer from 0 to 10, b is an integer from 0 to 10, c is an integer from 0 to 10, provided that a+b+c is 2 or more. represents a hand.
- the present invention provides a method for producing the polysiloxane compound, a polymer containing repeating units derived from the compound, and a medical material, particularly an ophthalmic device, containing the polymer.
- the present invention relates to a polysiloxane compound containing one cycloaliphatic hydrocarbon group having 8 to 20 carbon atoms in one molecule, wherein a (meth)acryloxy group on the aliphatic ring of the cycloaliphatic hydrocarbon group and a polysiloxane compound having a tertiary hydroxyl group.
- the group having a (meth)acryloxy group and a tertiary hydroxyl group on the aliphatic ring of the cycloaliphatic hydrocarbon group is not particularly limited as long as it has 8 to 20 carbon atoms.
- Group hydrocarbon groups are preferred. (In the above formula, * indicates a free radical bonded to the silicon atom of polysiloxane)
- the polysiloxane compound is preferably a polysiloxane compound represented by the following formula (1).
- R1 is a methyl group or a hydrogen atom
- A is a group represented by the following formula (2) or (3).
- R is independently a monovalent hydrocarbon group having 1 to 6 carbon atoms
- n is an integer of 1 to 200.
- the dashed line represents a bond.
- R is as described above, a is an integer from 0 to 10, b is an integer from 0 to 10, c is an integer from 0 to 10, provided that a+b+c is 2 or more. represents a hand.
- the compound is characterized by having a polysiloxane structure and containing a cycloaliphatic hydrocarbon group in which the linking group between the polysiloxane and the polymerizable group (meth)acryloxy group is substituted with a tertiary hydroxyl group. do.
- this tertiary hydroxyl group is a hydrophilic group, which has steric restrictions. This suppresses side reactions during the reaction, and the polymer ((co)polymer) containing repeating units derived from the polymerization of the (meth)acryloxy group of the polysiloxane compound of the present invention is derived from the directionality of hydrogen bonds.
- the polysiloxane compound of the present invention has high compatibility with hydrophilic monomers, can provide preferable strength in the derived (co)polymer, and also unexpectedly increases hardness and decreases flexibility. do not have.
- R 1 is a methyl group or a hydrogen atom, preferably a methyl group.
- A is a group represented by the above formula (2) or (3), n is an integer of 1 to 200, preferably n is an integer of 4 to 100, more preferably n is 4 to 30 integers.
- a is an integer from 0 to 10
- b is an integer from 0 to 10
- c is an integer from 0 to 10, provided that a+b+c is 2 or more. Also, in formula (3), it is preferred that a is 1, b is 1, and c is 0.
- each R is independently a monovalent hydrocarbon group having 1 to 6 carbon atoms.
- monovalent hydrocarbon groups include alkyl groups such as methyl group, ethyl group, propyl group, n-butyl group, t-butyl group, pentyl group, and hexyl group; cycloalkyl groups such as cyclopentyl group and cyclohexyl group; An aryl group such as a phenyl group and the like are included.
- R is preferably an alkyl group having 1 to 4 carbon atoms, more preferably a methyl group or a butyl group.
- the method for producing a polysiloxane compound of the present invention comprises a compound (unsaturated compound) containing an unsaturated group at the terminal represented by the following formula (4), ( R1 is as above.) a hydrogensiloxane compound represented by the following formula (5) or (6), (R, n, a, b, and c are as described above.) is hydrosilylated in the presence of a catalyst to obtain the compound represented by the above formula (1).
- a compound (formula (4)) having a terminal unsaturated bond and a cyclic aliphatic hydrocarbon group substituted with a tertiary hydroxyl group (formula (4)) is used as a raw material.
- the hydroxyl group possessed by the raw material compound represented by the above formula (4) is a tertiary hydroxyl group present on the cyclohexane ring, so the hydroxyl group is an undesirable side reaction in the hydrosilylation reaction. can be suppressed. Thereby, the polysiloxane compound of the present invention can be obtained with high purity.
- the above hydrosilylation reaction may be carried out according to a conventionally known method.
- 1 molar equivalent or more of the unsaturated compound represented by the formula (4) may be added to the hydrogensiloxane compound represented by the formula (5) or (6) and reacted.
- the reaction temperature is not particularly limited, a temperature that does not exceed the boiling point of the solvent used is preferable. For example, it may be performed at a temperature of about 0°C to about 120°C.
- the hydrosilylation reaction may be carried out in the presence of a solvent, hydrosilylation catalyst, or stabilizer. Solvents, hydrosilylation catalysts and stabilizers are not particularly limited as long as they are conventionally known ones.
- the unsaturated compound is preferably added in an amount of 1 molar equivalent or more relative to the hydrogensiloxane compound. It is more preferably 1.0 to 3.0 molar equivalents, still more preferably 1.1 to 2.0 molar equivalents, and particularly preferably 1.2 to 1.5 molar equivalents.
- 1 molar equivalent or more of the unsaturated compound to the hydrogensiloxane compound, residual hydrogensiloxane compounds and side reactions can be suppressed.
- the upper limit is not limited, it is preferably 3.0 molar equivalents or less from the viewpoint of yield and economy.
- the hydrosilylation catalyst is preferably, for example, a noble metal catalyst, especially a platinum catalyst derived from chloroplatinic acid.
- a noble metal catalyst especially a platinum catalyst derived from chloroplatinic acid.
- a complex (Karstedt catalyst) of 1,1,3,3-tetramethyl-1,3-divinyldisiloxane and chloroplatinic acid neutralized with sodium bicarbonate is more preferable.
- the amount of the hydrosilylation catalyst to be added may be any catalyst amount for advancing the hydrosilylation reaction.
- a complex of 1,1,3,3-tetramethyl-1,3-divinyldisiloxane and chloroplatinic acid neutralized with sodium bicarbonate is converted into a hydrogensiloxane compound represented by formula (5) or (6). It may be used in an amount of 1 ppm to 80 ppm in terms of platinum with respect to the mass of .
- Solvents are, for example, methyl cellosolve, ethyl cellosolve, isopropyl cellosolve, butyl cellosolve, propylene glycol monomethyl ether, diethylene glycol monomethyl ether, triethylene glycol monomethyl ether, polyethylene glycol monomethyl ether, ethylene glycol dimethyl ether, diethylene glycol dimethyl ether, triethylene glycol dimethyl ether and polyethylene glycol.
- glycol ether solvents such as dimethyl ether; ester solvents such as ethyl acetate, butyl acetate, amyl acetate, ethyl lactate and methyl benzoate; aliphatic hydrocarbon solvents such as linear hexane, linear heptane and linear octane; alicyclic hydrocarbon solvents such as ethylcyclohexane; ketone solvents such as acetone, methyl ethyl ketone and methyl isobutyl ketone; aromatic hydrocarbon solvents such as benzene, toluene and xylene; petroleum solvents and the like; and methyl alcohol, ethyl Alcohol solvents such as alcohol, linear propyl alcohol, isopropyl alcohol, linear butyl alcohol, isobutyl alcohol, tert-butyl alcohol, ethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol and polyethylene glycol are included
- Stabilizers include, for example, phenol-based antioxidants, phosphorus-based antioxidants, amine-based antioxidants, sulfur-based antioxidants, and the like.
- Phenolic antioxidants include, but are not limited to, p-methoxyphenol, di-tert-butyl-p-cresol, pyrogallol, tert-butylcatechol, 4,4-thiobis(3-methyl- 6-tert-butylphenol), 2,2'-methylenebis(4-methyl-6-t-butylphenol), phenol resins, and compounds selected from the group consisting of cresol resins.
- the phosphorus antioxidant is not particularly limited, but for example, tris[2-[[2,4,8,10-tetrakis(1,1-dimethylethyl)dibenzo[d,f][1, 3,2]dioxaphosphepin-6-yl]oxy]ethyl]amine, tris[2-[(4,6,9,11-tetra-tert-butyldibenzo[d,f][1,3, 2]dioxaphosphepin-2-yl)oxy]ethyl]amine, ethylbis(2,4-ditert-butyl-6-methylphenyl)phosphite and the like.
- amine antioxidants include, but are not limited to, tri- or tetra-C1-3 alkylpiperidine or derivatives thereof, bis(2,2,6,6-tetramethyl-4-piperidyl)oxalate, 1 ,2-bis(2,2,6,6-tetramethyl-4-piperidyloxy)ethane, phenylnaphthylamine, N,N'-diphenyl-1,4-phenylenediamine, N-phenyl-N'-cyclohexyl-1 , 4-phenylenediamine and the like.
- sulfur-based antioxidants include, but are not limited to, dilauryl thiodipropionate, distearyl thiodipropionate, and the like.
- the stabilizers may be used singly or in combination of two or more.
- the reaction end point can be confirmed according to a conventionally known method. For example, it can be confirmed by thin-layer chromatography (TLC), high-performance liquid chromatography (HPLC), gas chromatography (GC), or the like, by disappearance of the peak of the starting compound.
- purification may be performed according to a conventionally known method.
- the product can be isolated by washing the organic layer with water and then removing the solvent. Alternatively, vacuum distillation, activated carbon treatment, or the like may be used.
- the polysiloxane compound represented by the above formula (1) can be obtained by distilling off the starting material under reduced pressure.
- the polysiloxane compound of the present invention can give a polymer (polymer) containing repeating units derived from (addition) polymerization of (meth)acryloxy groups of the polysiloxane compound.
- the polysiloxane compound of the present invention has good compatibility with other compounds having polymerizable groups such as (meth)acryloxy groups (hereinafter referred to as polymerizable monomers or hydrophilic monomers). Therefore, a colorless and transparent copolymer can be obtained by copolymerizing with a polymerizable monomer. It is also possible to polymerize alone.
- the mixing ratio of the polysiloxane compound of the present invention is It is preferable that the mass ratio of the repeating unit derived from is 10% by mass or more with respect to the total mass of the polymer.
- a repeating unit derived from (addition) polymerization of the (meth)acryloxy group of the polysiloxane compound of the present invention with respect to a total of 100 parts by mass of the polysiloxane compound of the present invention and the polymerizable (hydrophilic) monomer is preferably 10 to 80 parts by mass, more preferably 10 to 60 parts by mass.
- the mass ratio of the repeating unit is 10% by mass or more, the properties of the polysiloxane compound of the present invention are likely to appear.
- polymerizable monomers examples include (meth) acrylic acid, methyl (meth) acrylate, ethyl (meth) acrylate, (poly) ethylene glycol dimethacrylate, polyalkylene glycol mono (meth) acrylate, polyalkylene glycol monoalkyl ether ( Acrylic monomers such as meth)acrylate, trifluoroethyl (meth)acrylate, 2-hydroxyethyl (meth)acrylate, 2,3-dihydroxypropyl (meth)acrylate; N,N-dimethylacrylamide, N,N-diethylacrylamide , N-acryloylmorpholine, N-methyl(meth)acrylamide; other unsaturated aliphatic or aromatic compounds such as N-vinylpyrrolidone, such as crotonic acid, cinnamic acid, vinylbenzoic acid; ) siloxane monomers having a polymerizable group such as an acrylic group. These may be used singly or in combination
- Copolymerization of the polysiloxane compound of the present invention with the other polymerizable monomer may be carried out by a conventionally known method.
- known polymerization initiators such as thermal polymerization initiators and photopolymerization initiators can be used.
- the polymerization initiator include 2-hydroxy-2-methyl-1-phenyl-propan-1-one, azobisisobutyronitrile, azobisdimethylvaleronitrile, benzoyl peroxide, tert-butyl hydroperoxide, cumene. hydroperoxide, 2,2'-azobis(2-methylpropionamidine) dihydrochloride and the like.
- These polymerization initiators can be used alone or in combination of two or more.
- the amount of the polymerization initiator compounded is preferably 0.001 to 2 parts by mass, more preferably 0.01 to 1 part by mass, per 100 parts by mass of the total polymerization components.
- a polymer containing a repeating unit derived from polymerization of the (meth)acryloxy group of the polysiloxane compound of the present invention has excellent hydrophilicity. Moreover, the hydrogel obtained from the polymer has high transparency and strength. Medical materials can also be obtained from the polymer. Therefore, the polysiloxane compound of the present invention is suitable for producing medical materials such as ophthalmic devices, contact lenses, intraocular lenses and artificial corneas.
- the method for producing a medical material using the polymer is not particularly limited, and conventionally known methods for producing a medical material may be followed. For example, when molding into a lens shape such as a contact lens or an intraocular lens, a cutting method, a mold method, or the like can be used.
- Measuring device Agilent gas chromatography (FID detector)
- Capillary column J & W HP-5ms manufactured by Agilent (inner diameter: 0.25 mm x length: 30 m x film thickness: 0.25 ⁇ m)
- Heating program 50°C (5 minutes) ⁇ 10°C/min ⁇ 250°C (holding)
- Carrier gas helium (1.0 ml/min)
- Split ratio 50:1
- Injection volume 1 ⁇ L
- MHMVCH a compound represented by formula (7)
- AHPM isomer mixture of compounds represented by formulas (8A) and (8B)
- C-SiGMA isomer mixture of compounds represented by formulas (9A) and (9B)
- the unsaturated group-containing compound (MHMVCH) containing a tertiary hydroxyl group present on the cyclohexane ring is added to hydrogensiloxane during the hydrosilylation reaction. Since side reactions are suppressed, polysiloxane compounds can be produced with higher purity than unsaturated group-containing compounds (AHPM) having primary and secondary hydroxyl groups.
- the hydrogel using TRIS as a comparative compound has difficulty in transparency (Comparative Example 1).
- hydrogels using the formulas (13A), (13B) and C-SiGMA as comparative compounds have a high elastic modulus and a low maximum elongation (Comparative Examples 2 and 3).
- the hydrogel using the polysiloxane compound of the present invention has excellent transparency, excellent elastic modulus and maximum elongation. That is, the hydrogel using the polysiloxane compound of the present invention provides a medical material having beneficial hydrophilicity and sufficient strength and flexibility.
- the polysiloxane compound of the present invention provides a hydrogel having excellent hydrophilicity and strength.
- the polysiloxane compound of the present invention is useful as a monomer for manufacturing medical materials such as ophthalmic devices, contact lenses, intraocular lenses, artificial corneas, and spectacle lenses.
- the present invention is not limited to the above embodiments.
- the above-described embodiment is an example, and any device having substantially the same configuration as the technical idea described in the claims of the present invention and exhibiting the same effect is the present invention. included in the technical scope of
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Abstract
Description
下記式(4)で表される、末端に不飽和基を含有する化合物と、
下記式(5)または(6)で表されるハイドロジェンシロキサン化合物、
とをヒドロシリル化反応させて、前記式(1)で表されるポリシロキサン化合物を得る工程を含むポリシロキサン化合物の製造方法を提供する。
さらに本発明は、該ポリシロキサン化合物の製造方法、該化合物から導かれる繰り返し単位を含むポリマー、及び該ポリマーを含む医療用材料、特には眼科用デバイスを提供する。
本発明は、1分子中に1個の炭素数8~20の環状脂肪族炭化水素基を含むポリシロキサン化合物であって、前記環状脂肪族炭化水素基の脂肪族環上に(メタ)アクリロキシ基及び第3級水酸基を有するものであるポリシロキサン化合物に関するものである。
以下、上記式(1)で示されるポリシロキサン化合物の製造方法を説明する。
本発明のポリシロキサン化合物の製造方法は、下記式(4)で表される、末端に不飽和基を含有する化合物(不飽和化合物)と、
下記式(5)または(6)で表されるハイドロジェンシロキサン化合物、
とを触媒の存在下でヒドロシリル化反応させて、上記式(1)で表される化合物を得る工程を含むポリシロキサン化合物の製造方法である。
ヒドロシリル化触媒は、例えば、貴金属触媒、特には塩化白金酸から誘導される白金触媒が好ましい。特に、塩化白金酸の水素イオンを重曹で完全中和して白金触媒の安定性を向上させるのがよい。例えば1,1,3,3-テトラメチル-1,3-ジビニルジシロキサンと塩化白金酸の重曹中和物との錯体(カルステッド触媒)がより好ましい。
溶媒は、例えば、メチルセロソルブ、エチルセロソルブ、イソプロピルセロソルブ、ブチルセロソルブ、プロピレングリコールモノメチルエーテル、ジエチレングリコールモノメチルエーテル、トリエチレングリコールモノメチルエーテル、ポリエチレングリコールモノメチルエーテル、エチレングリコールジメチルエーテル、ジエチレングリコールジメチルエーテル、トリエチレングリコールジメチルエーテル及びポリエチレングリコールジメチルエーテル等のグリコールエーテル溶媒;酢酸エチル、酢酸ブチル、酢酸アミル、乳酸エチル及び安息香酸メチル等のエステル系溶媒;直鎖ヘキサン、直鎖ヘプタン及び直鎖オクタン等の脂肪族炭化水素系溶媒;シクロヘキサン及びエチルシクロヘキサン等の脂環式炭化水素系溶媒;アセトン、メチルエチルケトン及びメチルイソブチルケトン等のケトン系溶媒;ベンゼン、トルエン及びキシレン等の芳香族炭化水素溶媒;並びに石油系溶媒等;及び、メチルアルコール、エチルアルコール、直鎖プロピルアルコール、イソプロピルアルコール、直鎖ブチルアルコール、イソブチルアルコール、tert-ブチルアルコール、エチレングリコール、ジエチレングリコール、トリエチレングリコール、テトラエチレングリコール及びポリエチレングリコールなどのアルコール系溶媒が挙げられる。前記溶媒は1種を単独で使用しても、2種以上を組合せて使用してもよい。
安定剤は、例えば、フェノール系酸化防止剤、リン系酸化防止剤、アミン系酸化防止剤、及びイオウ系酸化防止剤等が挙げられる。フェノール系酸化防止剤としては、特に限定するものではないが、例えば、p-メトキシフェノール、ジ-tert-ブチル-p-クレゾール、ピロガロール、tert-ブチルカテコール、4,4-チオビス(3-メチル-6-tert-ブチルフェノール)、2,2’-メチレンビス(4-メチル-6-t-ブチルフェノール)、フェノール樹脂類、及びクレゾール樹脂類からなる群より選択される化合物等が挙げられる。リン系酸化防止剤としては、特に限定するものではないが、例えば、トリス[2-[[2,4,8,10-テトラキス(1,1-ジメチルエチル)ジベンゾ[d,f][1,3,2]ジオキサホスフェピン-6-イル]オキシ]エチル]アミン、トリス[2-[(4,6,9,11-テトラ-tert-ブチルジベンゾ[d,f][1,3,2]ジオキサホスフェピン-2-イル)オキシ]エチル]アミン、および亜リン酸エチルビス(2,4-ジtert-ブチル-6-メチルフェニル)等が挙げられる。アミン系酸化防止剤としては、特に限定するものではないが、例えば、トリ又はテトラC1-3アルキルピペリジン又はその誘導体、ビス(2,2,6,6-テトラメチル-4-ピペリジル)オキサレート、1,2-ビス(2,2,6,6-テトラメチル-4-ピペリジルオキシ)エタン、フェニルナフチルアミン、N,N’-ジフェニル-1,4-フェニレンジアミン、N-フェニル-N’-シクロヘキシル-1,4-フェニレンジアミン等が挙げられる。イオウ系酸化防止剤としては、特に限定するものではないが、例えば、ジラウリルチオジプロピオネート、ジステアリルチオジプロピオネート等が挙げられる。前記安定剤は1種を単独で使用しても、2種以上を組合せて使用してもよい。
反応終了後は、従来公知の方法に従い精製すればよい。例えば、有機層を水で洗浄した後、溶媒を除去することにより生成物を単離することができる。また、減圧蒸留や活性炭処理などを使用してもよい。
本発明のポリシロキサン化合物は、ポリシロキサン化合物の(メタ)アクリロキシ基の(付加)重合から導かれる繰り返し単位を含むポリマー(重合体)を与えることができる。本発明のポリシロキサン化合物は、(メタ)アクリロキシ基などの重合性基を有する他の化合物(以下、重合性モノマー、または親水性モノマーという)との相溶性が良好である。そのため、重合性モノマーと共重合することにより無色透明の共重合体を与えることができる。また、単独で重合することも可能である。
下記実施例において、1H-NMR分析はJEOL製のECS400を用い、測定溶媒として重クロロホルムを使用して実施した。
また、ガスクロマトグラフ(GC)測定は、すべて下記の条件で行われた。
測定装置:Agilent社ガスクロマトグラフィー(FID検出器)
キャピラリーカラム:Agilent社製 J&W HP-5ms
(内径:0.25mm×長さ:30m×膜厚:0.25μm)
昇温プログラム:50℃(5分)→10℃/分→250℃(保持)
注入口温度:250℃
検出器温度:FID300℃
キャリアガス:ヘリウム(1.0ml/分)
スプリット比:50:1
注入量:1μL
MHMVCH:式(7)で表される化合物
ジムロート、温度計を付けた300mLの三口ナスフラスコに、窒素雰囲気下で下記式(10)で表されるハイドロジェンシロキサン化合物50.0g、MHMVCH42.6g(ハイドロジェンシロキサン化合物に対する不飽和化合物のモル比=1.3)、トルエン50.0g、塩化白金酸重曹中和物・ビニルシロキサン錯体のトルエン溶液(白金含有量0.5wt%)0.03gを添加し、80℃まで加熱し、4時間熟成した。反応後にn-ヘキサンを50.0g添加し、メタノール水溶液(メタノール:水=4:1)で5回洗浄し、内温80℃で溶媒および未反応の原料などを減圧留去することで無色透明液体を得た。収量72.5g。1H-NMRから式(10A)で表される化合物であることを確認した。GC測定を行い、目的物の純度を面積%から算出したところ、92.3%であった。
-0.10-0.20ppm(21H)、0.30ppm(1H)、0.54ppm(1H)、0.88ppm(3H)、1.17ppm(2.5H)、1.30-1.80ppm(9H)、1.90-2.00ppm(3H)、2.20-2.30ppm(0.5H)、4.08ppm(0.4H)、4.84ppm(0.6H)、5.48-5.58ppm(1H)、6.05-6.12ppm(1H)。
合成例1において式(10)で表されるハイドロジェンシロキサン化合物を下記式(11)で表されるハイドロジェンシロキサン化合物50.0g、MHVCH17.5g(ハイドロジェンシロキサン化合物に対する不飽和化合物のモル比=1.3)に替えた他は合成例1と同様の方法で無色透明液体を得た。収量61.2g。1H-NMRにより下記式(11A)で表される化合物であることを確認した。GC測定を行い、目的物の純度を面積%から算出したところ、93.2%であった。
-0.10-0.20ppm(33H)、0.30ppm(1H)、0.54ppm(1H)、0.88ppm(3H)、1.17ppm(2.5H)、1.30-1.80ppm(9H)、1.90-2.00ppm(3H)、2.20-2.30ppm(0.5H)、4.08ppm(0.4H)、4.84ppm(0.6H)、5.48-5.58ppm(1H)、6.05-6.12ppm(1H)。
合成例1において式(10)で表されるハイドロジェンシロキサン化合物を下記式(12)で表されるハイドロジェンシロキサン化合物50.0g、MHVCH10.5g(ハイドロジェンシロキサン化合物に対する不飽和化合物のモル比=1.3)に替えた他は合成例1と同様の方法で無色透明液体を得た。収量48.8g。1H-NMRにより下記式(12A)で表される化合物であることを確認した。
-0.10-0.20ppm(132H)、0.30ppm(1H)、0.40ppm(2H)、0.54ppm(1H)、0.88ppm(6H)、1.17ppm(2.5H)、1.30-1.80ppm(13H)、1.90-2.00ppm(3H)、2.20-2.30ppm(0.5H)、4.08ppm(0.4H)、4.84ppm(0.6H)、5.48-5.58ppm(1H)、6.05-6.12ppm(1H)。
合成例2においてMHMVCHをAHPM40.8g(ハイドロジェンシロキサン化合物に対する不飽和化合物のモル比=1.3)に替えた他は合成例1と同様の方法で無色透明液体を得た。収量72.5g。1H-NMRにより下記式(13A)及び(13B)で表される化合物の異性体混合物であることを確認した。GC測定を行い、目的物の純度を面積%から算出したところ、89.3%であった。
ハイドロゲルの製造例
上記合成例1~3で得た各化合物、上記比較合成例1で得た各化合物、上記式で表されるC-SiGMA、下記式で表される3-[トリス(トリメチルシロキシ)シリル]プロピルメタクリレート(TRIS)、2-ヒドロキシエチルメタクリレート(HEMA)、N、N-ジメチルアクリルアミド(DMA)、エチレングリコールジメタクリレート(EGDMA)、イルガキュア1173(IRG1173)を、表1又は2に示す組成及び配合比で混合し、均一な溶液になるまで撹拌した。撹拌後N2によるバブリング5分間を行い、十分に脱気を行った後、ポリプロピレン製の鋳型へと封入した。高圧水銀ランプを用いてUV照射を行い、硬化した。硬化後、イソプロパノール、50%イソプロパノール水溶液、脱イオン水の順にそれぞれ数秒浸漬させることで洗浄を行い、ハイドロゲルフィルムを得た。得られたフィルムの各物性値を下記に示す方法に従い測定した。結果を表1及び2に示す。
TRIS:3-[トリス(トリメチルシロキシ)シリル]プロピルメタクリレート
フィルムを脱イオン水に25℃で48時間浸漬させた後、表面の水分を拭き取り、水和したフィルムの質量を計測した。次に水和したフィルムを50℃のオーブンで48時間、25℃のオーブンで24時間乾燥させ、乾燥フィルムの質量を計測した。平衡含水率は以下の式により算出した。
平衡含水率(%)=100×(水和フィルムの質量-乾燥フィルムの質量)/水和フィルムの質量
フィルムを脱イオン水に25℃で48時間浸漬させた後、表面の水分を拭き取り、水和したフィルムを作成した。その外観を目視により観察し、下記の指標により評価した。
A:均一かつ透明であった
B:不均一あるいは白濁していた
フィルムを脱イオン水に25℃で48時間浸漬させた後、表面の水分を拭き取り、水和したフィルムを作成した。該水和したフィルムのヤング弾性率をインストロン5943を用いて測定した。0.8cm×4.0cmに切断されたフィルムを50Nのロードセル、1cm/分のヘッド速度で測定を行い、縦軸に得られる応力、横軸にひずみをとった応力-ひずみ曲線の初期(直線部)の傾きを算出し、ヤング弾性率(MPa)とした。また、フィルムが破断した時の伸び率を最大伸び率(%)とした。
本発明のポリシロキサン化合物は親水性や強度に優れるハイドロゲルを与える。本発明のポリシロキサン化合物は、医療用材料、例えば、眼科用デバイス、コンタクトレンズ、眼内レンズ、人工角膜、及び眼鏡レンズ製造用モノマーとして有用である。
Claims (11)
- 1分子中に1個の炭素数8~20の環状脂肪族炭化水素基を含むポリシロキサン化合物であって、前記環状脂肪族炭化水素基の脂肪族環上に(メタ)アクリロキシ基及び第3級水酸基を有するものであることを特徴とするポリシロキサン化合物。
- 前記式(1)において、Aが前記式(2)で表され、nが4~100の整数であることを特徴とする請求項2に記載のポリシロキサン化合物。
- 前記式(1)において、Aが前記式(3)で表され、aが1であり、bが1であり、cが0であることを特徴とする請求項2に記載のポリシロキサン化合物。
- 前記式(1)において、R1がメチル基であることを特徴とする請求項2から請求項4のいずれか1項に記載のポリシロキサン化合物。
- 前記式(2)または(3)において、Rが互いに独立に、メチル基またはブチル基であることを特徴とする請求項2から請求項5のいずれか1項に記載のポリシロキサン化合物。
- 請求項1から請求項6のいずれか1項に記載のポリシロキサン化合物の(メタ)アクリロキシ基の重合から導かれる繰り返し単位を含むものであることを特徴とするポリマー。
- 前記繰り返し単位の質量割合がポリマーの全質量に対し10質量%以上であることを特徴とする請求項7に記載のポリマー。
- 請求項7または請求項8に記載のポリマーを含むものであることを特徴とするハイドロゲル。
- 請求項7または請求項8に記載のポリマーを含むものであることを特徴とする医療用材料。
- 下記式(1)で表されるポリシロキサン化合物の製造方法であって、
下記式(4)で表される、末端に不飽和基を含有する化合物と、
下記式(5)または(6)で表されるハイドロジェンシロキサン化合物、
とをヒドロシリル化反応させて、前記式(1)で表されるポリシロキサン化合物を得る工程を含むことを特徴とするポリシロキサン化合物の製造方法。
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CN118076651A (zh) | 2024-05-24 |
EP4417631A1 (en) | 2024-08-21 |
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