WO2024005154A1 - 組成物、光融解性組成物及び化合物 - Google Patents
組成物、光融解性組成物及び化合物 Download PDFInfo
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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
- C08G75/00—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
- C08G75/02—Polythioethers
- C08G75/04—Polythioethers from mercapto compounds or metallic derivatives thereof
- C08G75/045—Polythioethers from mercapto compounds or metallic derivatives thereof from mercapto compounds and unsaturated compounds
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- 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
- C08F2/00—Processes of polymerisation
- C08F2/46—Polymerisation initiated by wave energy or particle radiation
- C08F2/48—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
- C08F2/50—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light with sensitising agents
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J181/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur, with or without nitrogen, oxygen, or carbon only; Adhesives based on polysulfones; Adhesives based on derivatives of such polymers
- C09J181/02—Polythioethers; Polythioether-ethers
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
Definitions
- the present disclosure relates to compositions, photofusible compositions, and compounds.
- Patent Document 1 describes a photocurable resin composition containing a compound (A) having a photopolymerizable functional group and an oil gelling agent (B), which has a shear rate of 1.0 s at 25°C .
- a photocurable resin composition having a viscosity of 30 to 1000 Pa ⁇ s in No. 1 is disclosed.
- the photocurable composition had room for improvement in terms of storage stability in a state where all components were mixed. In order to obtain stability for a certain period of time, it was necessary to consider operating methods such as storing it at low temperatures or mixing it immediately before use.
- An object of the present disclosure is to provide a composition that has excellent photocurability and good storage stability and can be handled as a one-component mixture.
- the present disclosure in some aspects, relates to the following [1] to [10].
- a composition comprising a disulfide compound having two or more disulfide bonds, an allyl compound having two or more allyl groups, and an intramolecularly cleavable photoradical generator.
- the intramolecular cleavage type photoradical generator includes a first intramolecular cleavage type photoradical generator whose extinction coefficient at the first wavelength is 1.0 ⁇ 10 2 or more, and a first intramolecular cleavage type photoradical generator whose extinction coefficient at the first wavelength is 1. and a second intramolecularly cleavable photoradical generator having a molecular weight of less than .0 ⁇ 10 2 .
- the first intramolecular cleavage type photoradical generator is 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)-butanone-1 and 2,4,6-trimethylbenzoyl-diphenyl-phos.
- the second intramolecular cleavage type photoradical generator is 1-hydroxy-cyclohexyl-phenyl-ketone, 2-hydroxy-2-methyl-1-phenyl -Propan-1-one, anisoin, 2,2-dimethoxy-1,2-diphenylethan-1-one, 2-methyl-1-[4-(methylthio)phenyl]-2-morpholinopropan-1-one , and at least one selected from the group consisting of 2-hydroxy-1- ⁇ 4-[4-(2-hydroxy-2-methyl-propionyl)-benzyl]-phenyl ⁇ -2-methyl-propan-1-one.
- the composition according to [2] which is a seed.
- A represents a polyether group.
- composition that has excellent photocurability and good storage stability and can be handled as a one-component mixture.
- process is used not only to refer to an independent process, but also to include any process that achieves the intended effect even if it cannot be clearly distinguished from other processes. It will be done. Furthermore, a numerical range indicated using “ ⁇ ” indicates a range that includes the numerical values written before and after " ⁇ " as the minimum and maximum values, respectively.
- the content of each component in the composition refers to the content of each component in the composition. means the total amount.
- the exemplified materials may be used alone or in combination of two or more.
- the upper limit or lower limit of the numerical range of one stage may be replaced with the upper limit or lower limit of the numerical range of another stage. Further, in the numerical ranges described in this specification, the upper limit or lower limit of the numerical range may be replaced with the value shown in the Examples. "A or B" may include either A or B, or may include both.
- composition of one embodiment contains a disulfide compound having two or more disulfide bonds, an allyl compound having two or more allyl groups, and an intramolecularly cleavable photoradical generator. Since the composition has the property of being cured by light irradiation, it can also be called a photocurable composition.
- the mechanism by which the composition is photocured is not clear, it is assumed to be as follows, for example. However, the mechanism is not limited to this.
- a composition containing a disulfide compound, an allyl compound, and an intramolecularly cleavable photoradical generator is irradiated with light
- the carbon-carbon double bond of the allyl group causes an insertion reaction with the disulfide bond
- the disulfide compound It is thought that photocuring occurs when the allyl compound forms a bond and the molecular weight increases.
- the cured product of the composition of one embodiment includes a photoreaction product that exhibits photomeltability. Therefore, the cured product of the composition can be photomelted by irradiating it with light in the presence of an intramolecularly cleavable photoradical generator.
- the mechanism by which the cured product of the composition photomelts is not clear, the following mechanism may be considered, for example. However, the mechanism is not limited to these mechanisms.
- a cured product containing a compound having a disulfide bond can be formed by photoreacting a disulfide compound and an allyl compound in the composition.
- Another mechanism is that photo-induced radicals originating from intramolecularly cleavable photo-radical generators react directly with disulfide bonds, resulting in the formation of photo-induced radical-thioether bonds and generation of thiyl radicals, resulting in the formation of thiyl radicals and other photo-induced radicals.
- Another possible mechanism is that the compound having a disulfide bond itself becomes lower in molecular weight and the photocured material becomes softer. The reaction in which disulfide bonds are cleaved can be said to be an irreversible reaction.
- a disulfide compound is a compound having two or more disulfide bonds.
- the number of disulfide bonds per molecule of the disulfide compound may be, for example, 1 to 1000, or 4 to 50.
- the molecular weight of the disulfide compound may be 200 to 1,000,000, 200 to 3,000,000, 500 to 1,000,000, or 1,000 to 10,000.
- the number average molecular weight of the disulfide compound may be 200 to 1,000,000, 200 to 3,000,000, 500 to 1,000,000, or 1,000 to 10,000.
- the number average molecular weight is a polystyrene equivalent value determined by gel permeation chromatography (GPC) using a standard polystyrene calibration curve.
- the disulfide compound may have one or more (eg, two or more) thiol groups (-SH).
- the disulfide compound may be a compound having two thiol groups.
- the disulfide compound has a linear molecular chain and a terminal group, and may be a compound (for example, a polymer or oligomer) having a disulfide bond in the molecular chain.
- the disulfide compound may be, for example, a compound having a structural unit represented by the following formula (1).
- a cured product of the composition having better photomelting properties can be formed.
- A represents a divalent organic group.
- a disulfide compound having a structural unit represented by formula (1) can react with, for example, a first precursor compound having a disulfide bond and having two first groups, and the first group. It may be a reaction product with a second precursor compound having a second group.
- the first group may be, for example, a carboxy group. Examples of the first precursor compound include dithiodipropionic acid.
- the second group may be, for example, a hydroxy group or an epoxy group.
- the second precursor compound may be a compound having two or more second groups, or may be a compound having two second groups.
- Examples of the second precursor compound include diol compounds such as diol oligomers and diol polymers, compounds having an epoxy group at the end such as polyalkylene glycol diglycidyl ether, and silicones.
- Examples of the diol compound include polyalkylene glycols such as polyethylene glycol and polypropylene glycol.
- A may be a polyether group.
- the polyether group represented by A may be, for example, a polyoxyalkylene group.
- the polyether group represented by A may be, for example, a group represented by -A 1 -O-A 2 -O-A 3 -.
- a 1 to A 3 may each independently be an alkylene group, and may be an alkylene group having 1 to 2 carbon atoms (eg, a methylene group or an ethylene group).
- Examples of the polyether group represented by A include -CH 2 CH 2 -O-CH 2 -O-CH 2 CH 2 -.
- the disulfide compound may be, for example, a compound represented by the following formula (1A).
- n represents an integer of 1 or more
- A has the same meaning as above
- X 1 and X 2 represent terminal groups.
- a plurality of A's may be the same or different.
- Examples of the terminal groups represented by X 1 and X 2 include a thiol group, a hydroxy group, a cyclic ether, a carboxyl group, and an unsaturated double bond.
- X 1 and X 2 may be the same or different.
- n is an integer of 1 or more, and may be, for example, an integer of 2 or more and 500 or less, or 10 or more and 100 or less.
- disulfide compound for example, a compound obtained by synthesis such as a reaction product of the above-mentioned first precursor compound and second precursor compound may be used. Commercially available products such as dithiol (manufactured by Toray Fine Chemicals, Inc.) may also be used. One type of disulfide compound may be used alone, or two or more types may be used in combination.
- the content of the disulfide compound may be 50% by mass or more, 60% by mass or more, 70% by mass or more, 75% by mass or more, or 80% by mass or more, and 95% by mass or less, based on the total mass of the composition. , 90% by mass or less, or 87% by mass or less.
- One type of allyl compound may be used alone, or two or more types may be used in combination.
- the number of allyl groups per molecule of the allyl compound may be, for example, 2 to 8, 2 to 4, and preferably 2 to 3.
- the allyl compound may include a diallyl compound having two allyl groups and a triallyl compound having three allyl groups, since the storage modulus upon photocuring becomes higher.
- the molecular weight of the allyl compound may be, for example, 100 or more, 150 or more, 1000 or less, or 300 or less.
- Z represents a linking group.
- the linking group represented by Z may be, for example, a substituted or unsubstituted divalent hydrocarbon group.
- the number of carbon atoms in the hydrocarbon group in the linking group may be, for example, 1 or more, or 3 or more, or 10 or less, or 20 or less.
- the linking group may include, for example, an arylene group, an ester bond, an alkenylene group, a polyoxyalkylene group (such as a polyoxyethylene group), an alkylene group, a cycloalkylene group, or a combination of these groups.
- Z 1 , Z 2 and Z 3 each represent a linking group.
- Z 1 and Z 2 may each independently be a single bond or an ester bond.
- diallyl compounds examples include diallyl isophthalate, diallyl terephthalate, diallyl fumarate, and diallyl maleate.
- the allyl compound may include, for example, a triallyl compound consisting of three allyl groups and a linking group that connects the three allyl groups.
- Examples of triallyl compounds include isocyanurtriallyl.
- the content of the allyl compound is 1.0% by mass or more, 1.5% by mass or more, 2.0% by mass or more, 2.5% by mass or more, 3.0% by mass or more based on the total mass of the composition. , 3.5% by mass or more, 4.0% by mass or more, 4.5% by mass or more, 5.0% by mass or more, or 5.5% by mass or more, and 20.0% by mass or less, 15. It may be 0% by weight or less, 10.0% by weight or less, 8.0% by weight or less, 6.0% by weight or less, or 5.0% by weight or less.
- the ratio (B/A) of the number of moles of the allyl compound (B) to the number of moles of the disulfide compound (A) may be 0.5 or more, or 1 or more, and 3 or less, or 4 or less.
- the ratio (D/C) of the total number of moles of allyl groups in the allyl compound (D) to the total number of moles of thiol groups in the disulfide compound (C) is 0.5 or more. , or 0.9 or more, and 1.5 or less, or 1.1 or less.
- the intramolecular cleavage type photoradical generator is a compound that itself is photocleaved when irradiated with light to generate two radicals.
- compounds used as intramolecular cleavage type photoradical polymerization initiators can be used.
- Examples of the intramolecular cleavage type photoradical generator include benzyl ketal photoradical generators, ⁇ -aminoalkylphenone photoradical generators, ⁇ -hydroxyalkylphenone photoradical generators, ⁇ -hydroxyacetophenone photoradical generators, and ⁇ -hydroxyacetophenone photoradical generators.
- Generators include acylphosphine oxide photoradical generators.
- the intramolecular cleavage type photoradical generator may be used alone or in combination of two or more.
- benzyl ketal photoradical generator examples include 2,2-dimethoxy-1,2-diphenylethan-1-one (Omnirad 651).
- Examples of ⁇ -aminoalkylphenone photoradical generators include 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)-butanone-1 (Omnirad369), 2-methyl-1-[4-(methylthio ) phenyl]-2-morpholinopropan-1-one (Omnirad907), 2-dimethylamino-2-(4-methyl-benzyl)-1-(4-morpholin-4-yl-phenyl)-butane-1- On (Omnirad 379EG) and the like.
- Examples of the ⁇ -hydroxyalkylphenone photoradical generator include 1-hydroxy-cyclohexyl-phenyl-ketone (Omnirad 184).
- 2-hydroxy-1- ⁇ 4-[4-(2-hydroxy-2-methyl-propionyl)-benzyl]-phenyl ⁇ -2-methyl-propane-1- (Omnirad 127), 2-hydroxy-2-methyl-1-phenyl-propan-1-one (Omnirad 1173), anisoin, and the like.
- acylphosphine oxide photoradical generators examples include 2,4,6-trimethylbenzoyl-diphenyl-phosphine oxide (OmniradTPO H), bis(2,4,6-trimethylbenzoyl)-phenylphosphine oxide (Omnirad819), etc. can be mentioned.
- the intramolecular cleavage type photoradical generator has an extinction coefficient of 1.0 ⁇ 10 2 or more at a first wavelength; , and a second intramolecularly cleavable photoradical generator which is less than 1.0 ⁇ 10 2 .
- the extinction coefficient in this specification is a value (unit: mL/g ⁇ cm) measured in methanol or acetonitrile.
- the cured product obtained by irradiating the first light containing the first wavelength with the first can be melted by irradiating second light including light of a wavelength different from the wavelength (second wavelength).
- the second light may include light of a second wavelength that is shorter than the first wavelength.
- the first wavelength may be, for example, 447 nm or 405 nm. If the first wavelength is 447 nm, the second wavelength may be 405 nm or 365 nm. If the first wavelength is 405 nm, the second wavelength may be 365 nm.
- intramolecularly cleavable photoradical generators having an extinction coefficient of 1.0 ⁇ 10 2 or more at a wavelength of 447 nm include bis(2,4,6-trimethylbenzoyl)-phenylphosphine oxide (Omnirad 819). It will be done.
- Examples of the intramolecularly cleavable photoradical generator having an extinction coefficient of less than 1.0 ⁇ 10 2 at a wavelength of 447 nm and an extinction coefficient of 1.0 ⁇ 10 2 or more at a wavelength of 405 nm include, for example, 2-benzyl-2 -dimethylamino-1-(4-morpholinophenyl)-butanone-1 (Omnirad 369), and 2,4,6-trimethylbenzoyl-diphenyl-phosphine oxide (OmniradTPO H).
- Examples of intramolecularly cleavable photoradical generators having an extinction coefficient at a wavelength of 447 nm and an extinction coefficient at a wavelength of 405 nm of less than 1.0 ⁇ 10 2 include 1-hydroxy-cyclohexyl-phenyl-ketone (Omnirad 184), 2- Hydroxy-2-methyl-1-phenyl-propan-1-one (Omnirad1173), Anisoin, 2,2-dimethoxy-1,2-diphenylethan-1-one (Omnirad651), 2-methyl-1-[4- (Methylthio)phenyl]-2-morpholinopropan-1-one (Omnirad907), and 2-hydroxy-1- ⁇ 4-[4-(2-hydroxy-2-methyl-propionyl)-benzyl]-phenyl ⁇ - 2-Methyl-propan-1-one (Omnirad 127) is mentioned.
- the composition of one embodiment includes a first intramolecular cleavage type photoradical generator having an extinction coefficient of 1.0 ⁇ 10 2 or more at a wavelength of 447 nm, and a first intramolecular cleavage type photoradical generator having an extinction coefficient of less than 1.0 ⁇ 10 2 at a wavelength of 447 nm. and a second intramolecularly cleavable photoradical generator.
- the first intramolecularly cleavable photoradical generator is bis(2,4,6-trimethylbenzoyl)-phenylphosphine oxide
- the second intramolecularly cleavable photoradical generator is bis(2,4,6-trimethylbenzoyl)-phenylphosphine oxide.
- the composition of another embodiment includes a first intramolecular cleavage type photoradical generator having an extinction coefficient of 1.0 ⁇ 10 2 or more at a wavelength of 405 nm, and a first intramolecular cleavage type photoradical generator having an extinction coefficient of 1.0 ⁇ 10 2 at a wavelength of 405 nm. and a second intramolecularly cleavable photoradical generator which is less than 100%.
- the first intramolecularly cleavable photoradical generator is 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)-butanone-1
- the second intramolecularly cleavable photoradical generator is 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)-butanone-1
- the radical generator is 1-hydroxy-cyclohexyl-phenyl-ketone, 2-hydroxy-2-methyl-1-phenyl-propan-1-one, anisoin, 2,2-dimethoxy-1,2-diphenylethane-1- 2-methyl-1-[4-(methylthio)phenyl]-2-morpholinopropan-1-one, or 2-hydroxy-1- ⁇ 4-[4-(2-hydroxy-2-methyl- propionyl)-benzyl]-phenyl ⁇ -2-methyl-propan-1-one.
- the first intramolecularly cleavable photoradical generator is 2,4,6-trimethylbenzoyl-diphenyl-phosphine oxide
- the second intramolecularly cleavable photoradical generator is 1-hydroxy-cyclohexyl. -phenyl-ketone, 2-hydroxy-2-methyl-1-phenyl-propan-1-one, anisoin, 2,2-dimethoxy-1,2-diphenylethan-1-one, 2-methyl-1-[4 -(methylthio)phenyl]-2-morpholinopropan-1-one, or 2-hydroxy-1- ⁇ 4-[4-(2-hydroxy-2-methyl-propionyl)-benzyl]-phenyl ⁇ -2 -methyl-propan-1-one.
- a suitable combination of the first and second intramolecularly cleavable photoradical generators includes, for example, 2,4,6-trimethylbenzoyl-diphenyl-phosphine oxide (OmniradTPO H) and 2-hydroxy-2-methyl-
- the total content of the intramolecularly cleavable photoradical generator may be 5% by mass or more, 7% by mass or more, or 9% by mass or more, and 30% by mass or less, 20% by mass, based on the total mass of the composition. % or less, 15% by weight or less, or 12% by weight or less.
- the content of the first intramolecular cleavage type photoradical generator is 0.8% by mass or more, 1.0% by mass or more, 1.5% by mass or more, or 2.0% by mass or more, based on the total mass of the composition.
- the content may be greater than or equal to 5.0 mass%, 4.0 mass% or less, 3.0 mass% or less, 2.0 mass% or less, or 1.8 mass% or less.
- the ratio (A/C1) of the number of moles (A) of the disulfide compound to the number of moles (C1) of the first intramolecularly cleavable photoradical generator is, for example, 2 or more, 3 or more, 4 or more, or 5 or more. may be 12 or less, 10 or less, 8 or less, 6 or less, or 4 or less.
- the ratio (B/C1) of the number of moles (B) of the allyl compound to the number of moles (C1) of the first intramolecular cleavable photoradical generator is, for example, 1 or more, 2 or more, 3 or more, 4 or more, Or it may be 5 or more, 12 or less, 10 or less, 8 or less, 6 or less, or 5 or less.
- the content of the second intramolecular cleavage type photoradical generator is 3% by mass or more, 4% by mass or more, 5% by mass or more, 6% by mass or more, or 7% by mass or more, based on the total mass of the composition. It may be 30% by weight or less, 20% by weight or less, 15% by weight or less, 10% by weight or less, or 8% by weight or less.
- the ratio (A/C2) of the number of moles (A) of the disulfide compound to the number of moles (C2) of the second intramolecularly cleavable photoradical generator is, for example, 0.20 or more, 0.25 or more, 0. It may be 30 or more, 0.35 or more, or 0.45 or more, and may be 1.0 or less, 0.80 or less, 0.70 or less, or 0.60 or less.
- the ratio (B/C2) of the number of moles (B) of the allyl compound to the number of moles (C2) of the second intramolecularly cleavable photoradical generator is, for example, 0.20 or more, 0.25 or more, 0. It may be 30 or more, 0.35 or more, 0.40 or more, or 0.45 or more, and may be 1.0 or less, 0.80 or less, 0.70 or less, or 0.60 or less.
- the composition may further contain components (other components) other than the disulfide compound, allyl compound, and intramolecularly cleavable photoradical generator.
- Other ingredients include, for example, tackifiers such as plasticizers and tackifiers, adhesion improvers such as antioxidants, leuco dyes, sensitizers, and coupling agents, polymerization inhibitors, light stabilizers, and quenchers.
- Additives include foaming agents, fillers, chain transfer agents, thixotropy agents, flame retardants, mold release agents, surfactants, lubricants, antistatic agents, and the like. Known additives can be used as these additives.
- the total content of other components may be 50% by mass or less, 20% by mass or less, or 5% by mass or less based on the total amount of the composition.
- the composition can be produced, for example, by a method comprising a step of mixing or kneading a disulfide compound, an allyl compound, an intramolecularly cleavable photoradical generator, and optionally added components.
- Mixing and kneading can be carried out using an appropriate combination of dispersing machines such as a conventional stirrer, a sieve machine, a three-roll mill, a ball mill, and a bead mill.
- composition of one embodiment can be used as adhesives, temporary fixing materials, photoresists, resins for 3D printers, resins for molding materials, and the like.
- the cured product of the composition of one embodiment includes a photoreaction product of a disulfide compound and an allyl compound.
- the cured product may contain an intramolecularly cleavable photoradical generator.
- a cured product containing a photoreaction product of a disulfide compound and an allyl compound and an intramolecularly cleavable photoradical generator has the property of being melted by light irradiation, so it can also be called a photomeltable composition.
- the cured product may have various shapes.
- Examples of the shape of the cured product include a membrane shape and a block shape.
- a cured product formed into a film shape can be used as a resin film.
- the cured product formed into a block shape can be used as a resin block.
- the method of forming a membranous (film-like) or block-like cured product is not particularly limited, and any known method can be applied.
- the storage modulus of the cured product at 25° C. may be 10,000 Pa or more, 30,000 Pa or more, 50,000 Pa or more, 70,000 Pa or more, 110,000 Pa or more, 130,000 Pa or more, or 150,000 Pa or more.
- the storage modulus of the cured product at 25° C. is not particularly limited, but may be, for example, 10 MPa or less.
- the method for measuring the storage modulus at 25°C is as described in the Examples.
- a cured product of the composition of one embodiment can be produced by a method including a step of irradiating the composition with light to cause a disulfide compound and an allyl compound to react.
- the light used to form the cured product may be, for example, ultraviolet light or visible light.
- the wavelength of the curing light may be appropriately selected depending on, for example, the type of intramolecularly cleavable photoradical generator used.
- the wavelength of the curing light may be, for example, 150 to 830 nm.
- the curing light may include, for example, light with a wavelength of 447 nm, 405 nm, or 365 nm.
- Light irradiation can be performed, for example, using a light irradiation device under the condition that the irradiation amount is 100 mJ/cm 2 or more.
- the irradiation amount can be appropriately set depending on, for example, the wavelength of the curing light.
- the irradiation amount may be, for example, 1000 mJ/cm 2 or more, 2000 mJ/cm 2 or more, 2500 mJ/cm 2 or more, 5000 mJ/cm 2 or more, 10000 mJ/cm 2 or more, or 15000 mJ/cm 2 or more, and 50000 mJ/cm 2 or more.
- Irradiation amount means the product of illumination intensity and irradiation time (seconds).
- Examples of light sources for irradiating ultraviolet light or visible light include low-pressure mercury lamps, medium-pressure mercury lamps, high-pressure mercury lamps, metal halide lamps, and LED lamps. Light irradiation may be performed directly on the composition or may be performed through glass or the like.
- a compound of one embodiment (hereinafter also referred to as “the present compound”) has a disulfide bond and a structure represented by the following formula (A).
- the present compound is produced by a method that includes irradiating a composition containing a disulfide compound, an allyl compound, and an intramolecularly cleavable photoradical generator with light to cause the disulfide compound and the allyl compound to react.
- a composition containing a disulfide compound, an allyl compound, and an intramolecularly cleavable photoradical generator with light to cause the disulfide compound and the allyl compound to react.
- the disulfide compound, allyl compound, and intramolecularly cleavable photoradical generator may be those mentioned above.
- the above-mentioned conditions can be used as the light irradiation conditions.
- the carbon-carbon double bond in the allyl group causes an insertion reaction with the disulfide bond due to the reaction between the disulfide compound and the allyl compound. It is assumed that it is formed in
- the compound may have a structure represented by the following formula (B).
- n represents an integer of 1 or more
- A represents a polyether group
- * represents a bond
- multiple A's may be the same or different from each other.
- a and n may have the same meanings as A and n described above.
- the present compound may have a linking group represented by Z in the above-mentioned formula (2).
- the linking group may be bonded to the oxygen atom in formula (B).
- the present compound may further have a structure represented by the following formula (C).
- the present compound further having the structure represented by the above formula (C) can be obtained, for example, by using a disulfide compound having two thiol groups in the method for producing the present compound. It is presumed that the structure represented by the above formula (C) is formed by an enethiol reaction between a thiol group and an allyl group in an allyl compound.
- the photomeltable composition of one embodiment contains a photoreaction product of a sulfide compound and an allyl compound, and an intramolecularly cleavable photoradical generator.
- a photomeltable composition of another embodiment contains the present compound and an intramolecularly cleavable photoradical generator.
- the photofusible composition includes a composition containing a sulfide compound, an allyl compound, and first and second intramolecularly cleavable photoradical generators, in which first light including light at a first wavelength is applied.
- a cured product photofusible composition
- a photoreaction product of the sulfide compound and the allyl compound and a second intramolecular cleavage type photoradical generator can be manufactured by a method comprising forming a.
- a method for producing a photomelted product includes irradiating a photomeltable composition containing the above-described photoreaction product and an intramolecularly cleavable photoradical generator with light to form a photomelted product. Including process.
- a method for producing a photomeltable product according to another embodiment includes the step of irradiating a photomeltable composition containing the present compound and an intramolecularly cleavable photoradical generator with light to form a photomeltable product. .
- the light used to form the melt may be, for example, ultraviolet light or visible light.
- the wavelength of the light for melting may be appropriately selected depending on, for example, the type of intramolecularly cleavable photoradical generator used.
- the wavelength of the light for melting may be, for example, 150-830 nm.
- the melting light may include, for example, light with a wavelength of 405 nm or 365 nm.
- Light irradiation can be performed, for example, using a light irradiation device under conditions where the irradiation amount exceeds 3000 mJ/cm 2 .
- the irradiation amount can be appropriately set depending on, for example, the wavelength of the curing light.
- the irradiation amount may be, for example, 15,000 mJ/cm 2 or more, 20,000 mJ/cm 2 or more, or 25,000 mJ/cm 2 or more, and 100,000 mJ/cm 2 or less, 50,000 mJ/cm 2 or less, or 35,000 mJ/cm 2 or less. good.
- the adhesive body of this embodiment includes a first adherend, a second adherend, and an adhesive layer that adheres the first adherend and the second adherend to each other.
- the adhesive layer contains the photofusible composition described above.
- first adherend and the second adherend examples include polyolefin resin, polyamide resin, ABS (acrylonitrile butadiene styrene) resin, PC (polycarbonate) resin, PET (polyethylene terephthalate) resin, and PPS (polyphenylene).
- plastics such as sulfide resins and acrylic resins; steel, stainless steel, metals (aluminum, copper, nickel, chromium, etc.) or alloys of these metals; inorganic materials such as glass and silicon wafers; wood; and rubber.
- a composite material of the above-mentioned plastic and the above-mentioned inorganic material can also be mentioned.
- the adhesive body can be formed by irradiating the composition with the first light while the composition of the present embodiment is in contact with the first adherend and the second adherend. It can be manufactured by a method that includes forming an adhesive layer that adheres the body and the second adherend to each other.
- the first light can be appropriately set depending on, for example, the type of the intramolecularly cleavable photoradical generator.
- the first light irradiation conditions may be the conditions described above.
- a method for separating adherends includes a step of irradiating the adhesive layer of the adhesive body with second light to separate the first adherend and the second adherend. Be prepared. Since the adhesive layer contains a photofusible composition, by irradiating it with light, the photofusible composition can be melted and the adherends can be easily separated from each other.
- the second light can be appropriately set depending on, for example, the type of the intramolecularly cleavable photoradical generator.
- the second light irradiation conditions may be the conditions described above.
- component (A) the following compounds having two or more disulfide bonds were prepared.
- Thiokol LP-55 polysulfide, manufactured by Toray Fine Chemical Co., Ltd., number average molecular weight (Mn): 3677.8
- component (B) the following compound having a carbon-carbon double bond was prepared.
- DAIP diallyl isophthalate, manufactured by Tokyo Chemical Industry Co., Ltd., molecular weight 246.26)
- TAIC Isocyanur triallyl, manufactured by Shinryo Co., Ltd., molecular weight 249
- DEGDVE diethylene glycol divinyl ether, manufactured by Nippon Carbide Industries Co., Ltd., molecular weight: 158.2
- TEGDVE triethylene glycol divinyl ether, manufactured by Nippon Carbide Industries Co., Ltd., molecular weight: 202.278
- the following photoradical generator was prepared.
- Omnirad-TPO H (2,4,6-trimethylbenzoyl-diphenylphosphine oxide, manufactured by IGM Resins B.V., molecular weight: 348)
- Omnirad-1173 (2-hydroxy-2-methyl-1-phenylpropanone, manufactured by IGM Resins B.V., molecular weight: 164.2
- composition The components and amounts (unit: parts by mass) listed in Table 1 were added to a 100 mL flask, and stirred with a mechanical stirrer at 100°C for 1 hour to dissolve and mix each component. Examples 1 to 2 And compositions of Comparative Examples 1 and 2 were obtained.
- Table 1 shows the measurement results of storage modulus after irradiation with the first wavelength and the second wavelength. Furthermore, each composition before photocuring was stored in an atmosphere at 40° C. for one week, and then similar measurements were performed. The results are also shown in Table 1.
- the first wavelength is 405 nm.
- the second wavelength is 365 nm.
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Abstract
Description
[1]
ジスルフィド結合を2つ以上有するジスルフィド化合物と、アリル基を2つ以上有するアリル化合物と、分子内開裂型光ラジカル発生剤と、を含有する、組成物。
[2]
前記分子内開裂型光ラジカル発生剤が、第1の波長における吸光係数が1.0×102以上である第1の分子内開裂型光ラジカル発生剤と、第1の波長における吸光係数が1.0×102未満である第2の分子内開裂型光ラジカル発生剤と、を含む、[1]に記載の組成物。
[3]
前記第1の分子内開裂型光ラジカル発生剤が、2-ベンジル-2-ジメチルアミノ-1-(4-モルフォリノフェニル)-ブタノン-1、及び2,4,6-トリメチルベンゾイル-ジフェニル-フォスフィンオキサイドからなる群より選択される少なくとも1種であり、前記第2の分子内開裂型光ラジカル発生剤が、1-ヒドロキシ-シクロヘキシル-フェニル-ケトン、2-ヒドロキシ-2-メチル-1-フェニル-プロパン-1-オン、アニソイン、2,2-ジメトキシ-1,2-ジフェニルエタン-1-オン、2-メチル-1-[4-(メチルチオ)フェニル]-2-モルフォリノプロパン-1-オン、及び2-ヒドロキシ-1-{4-[4-(2-ヒドロキシ-2-メチル-プロピオニル)-ベンジル]-フェニル}-2-メチル-プロパン-1-オンからなる群より選択される少なくとも1種である、[2]に記載の組成物。
[4]
前記ジスルフィド化合物が、下記式(1)で表される構造単位を有する、[1]~[3]のいずれかに記載の組成物。
[5]
接着剤に用いられる、[1]~[4]のいずれかに記載の組成物。
[6]
ジスルフィド結合を2つ以上有するジスルフィド化合物と、アリル基を2つ以上有するアリル化合物との光反応生成物と、分子内開裂型光ラジカル発生剤と、を含有する、光融解性組成物。
[7]
ジスルフィド結合と、下記式(A)で表される構造とを有する、化合物。
[8]
下記式(B)で表される構造を有する、[7]に記載の化合物。
[9]
下記式(C)で表される構造を更に有する、[7]又は[8]に記載の化合物。
[10]
[7]~[9]のいずれかに記載の化合物と、分子内開裂型光ラジカル発生剤と、を含有する、光融解性組成物。
一実施形態の組成物は、ジスルフィド結合を2つ以上有するジスルフィド化合物と、アリル基を2つ以上有するアリル化合物と、分子内開裂型光ラジカル発生剤と、を含有する。当該組成物は、光照射によって硬化する性質を有しているため、光硬化性組成物ということもできる。
ジスルフィド化合物は、ジスルフィド結合を2つ以上有する化合物である。ジスルフィド化合物1分子あたりのジスルフィド結合の数は、例えば、1~1000、又は4~50であってよい。
アリル化合物は、アリル基(H2C=CH-CH2-)を2つ以上有する化合物である。アリル化合物は、1種を単独で用いてもよく、2種以上を組み合わせて用いてもよい。
分子内開裂型光ラジカル発生剤は、光の照射によってその物自体が光開裂して2つのラジカルを生成する化合物である。分子内開裂型光ラジカル発生剤としては、分子内開裂型光ラジカル重合開始剤として用いられている化合物を使用することができる。
組成物は、例えば、ジスルフィド化合物、アリル化合物及び分子内開裂型光ラジカル発生剤、並びに必要に応じて添加される成分を混合又は混練する工程を備える方法によって製造することができる。混合及び混練は、通常の撹拌機、らいかい機、三本ロール、ボールミル、ビーズミル等の分散機を適宜、組み合わせて行うことができる。
一実施形態の組成物は、接着剤、仮固定材、フォトレジスト、3Dプリンター用樹脂、成形材用樹脂等の用途に用いることができる。
一実施形態の組成物の硬化物は、ジスルフィド化合物及びアリル化合物の光反応生成物を含む。硬化物は、分子内開裂型光ラジカル発生剤を含んでいてもよい。ジスルフィド化合物及びアリル化合物の光反応生成物と、分子内開裂型光ラジカル発生剤とを含む硬化物は、光照射により融解する性質を有しているため、光融解性組成物ということもできる。
一実施形態の組成物の硬化物は、組成物に光照射して、ジスルフィド化合物とアリル化合物とを反応させる工程を含む方法によって製造することができる。
一実施形態の光融解性組成物は、スルフィド化合物及びアリル化合物の光反応生成物と、分子内開裂型光ラジカル発生剤とを含有する。他の実施形態の光融解性組成物は、本件化合物と、分子内開裂型光ラジカル発生剤とを含有する。
一実施形態の光融解物の製造方法は、上述した光反応生成物と、分子内開裂型光ラジカル発生剤と、を含む光融解性組成物に光を照射して、光融解物を形成する工程を含む。他の実施形態の光融解物の製造方法は、本件化合物と、分子内開裂型光ラジカル発生剤と、を含む光融解性組成物に光を照射して、光融解物を形成する工程を含む。
本実施形態の接着体は、第1の被着体と、第2の被着体と、第1の被着体及び第2の被着体を互いに接着する接着剤層とを備える。接着剤層は、上記に記載の光融解性組成物を含有する。
一実施形態の被着体の分離方法は、接着体の接着剤層に対して、第2の光を照射して、第1の被着体と第2の被着体とを分離する工程を備える。接着剤層は、光融解性組成物を含有することから、光を照射することによって、光融解性組成物を融解させて容易に被着体同士を分離することができる。第2の光は、例えば、分子内開裂型光ラジカル発生剤の種類等に応じて適宜設定することができる。第2の光の照射条件は、上述した条件であってよい。
チオコールLP-55(ポリスルフィド、東レファインケミカル社製、数平均分子量(Mn):3677.8)
DAIP(イソフタル酸ジアリル、東京化成工業株式会社製、分子量246.26)
TAIC(イソシアヌールトリアリル、株式会社新菱製、分子量249)
DEGDVE(ジエチレングリコールジビニルエーテル、日本カーバイド工業株式会社製、分子量:158.2)
TEGDVE(トリエチレングリコールジビニルエーテル、日本カーバイド工業株式会社製、分子量:202.28)
(分子内開裂型光ラジカル発生剤)
Omnirad-TPO H(2,4,6-トリメチルベンゾイルージフェニルフォスフィンオキサイド、IGM Resins B.V.社製、分子量:348)
Omnirad-1173(2-ヒドロキシ-2-メチル-1-フェニルプロパノン、IGM Resins B.V.社製、分子量:164.2)
表1に記載の成分および量(単位:質量部)を100mLフラスコに加え、メカニカルスターラーで100℃下1時間攪拌して各成分を溶解、混合することにより、実施例1~2及び比較例1~2の組成物を得た。
粘弾性測定装置(TA Instuments社製、商品名:DHR-2)を用いて、光透過性の底面から評価サンプルに対して紫外光照射することで光照射時間に対する25℃における貯蔵弾性率変化を測定した。光照射は、LEDランプ(パナソニックデバイスSUNX株式会社製、商品名:Aicure UJ30/ANUJ6186およびANUJ6189)を用い、第1波長として露光量20000mJ/cm2、その後第2波長として露光量30000mJ/cm2で露光した。表1に、第1波長及び第2波長照射後の貯蔵弾性率の測定結果を示す。更に、光硬化前各組成物を40℃雰囲気下で1週間保管してから同様の測定を行った。その結果も表1に示す。第1波長は、405nmである。第2波長は、365nmである。
Claims (10)
- ジスルフィド結合を2つ以上有するジスルフィド化合物と、
アリル基を2つ以上有するアリル化合物と、
分子内開裂型光ラジカル発生剤と、を含有する、組成物。 - 前記分子内開裂型光ラジカル発生剤が、
第1の波長における吸光係数が1.0×102以上である第1の分子内開裂型光ラジカル発生剤と、
第1の波長における吸光係数が1.0×102未満である第2の分子内開裂型光ラジカル発生剤と、を含む、請求項1に記載の組成物。 - 前記第1の分子内開裂型光ラジカル発生剤が、2-ベンジル-2-ジメチルアミノ-1-(4-モルフォリノフェニル)-ブタノン-1、及び2,4,6-トリメチルベンゾイル-ジフェニル-フォスフィンオキサイドからなる群より選択される少なくとも1種であり、
前記第2の分子内開裂型光ラジカル発生剤が、1-ヒドロキシ-シクロヘキシル-フェニル-ケトン、2-ヒドロキシ-2-メチル-1-フェニル-プロパン-1-オン、アニソイン、2,2-ジメトキシ-1,2-ジフェニルエタン-1-オン、2-メチル-1-[4-(メチルチオ)フェニル]-2-モルフォリノプロパン-1-オン、及び2-ヒドロキシ-1-{4-[4-(2-ヒドロキシ-2-メチル-プロピオニル)-ベンジル]-フェニル}-2-メチル-プロパン-1-オンからなる群より選択される少なくとも1種である、請求項2に記載の組成物。 - 接着剤に用いられる、請求項1~3のいずれか一項に記載の組成物。
- ジスルフィド結合を2つ以上有するジスルフィド化合物と、アリル基を2つ以上有するアリル化合物との光反応生成物と、分子内開裂型光ラジカル発生剤と、を含有する、光融解性組成物。
- 請求項7又は8に記載の化合物と、分子内開裂型光ラジカル発生剤と、を含有する、光融解性組成物。
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|---|---|---|---|---|
| JPH1017852A (ja) * | 1996-07-04 | 1998-01-20 | Yokohama Rubber Co Ltd:The | 2液型ポリサルファイド系シーリング材組成物 |
| WO2018022457A1 (en) * | 2016-07-29 | 2018-02-01 | The Regents Of The University Of California | Accelerated healing by injectable multi-arm branched amphiphilic scaffolds loaded with hydrophobic drugs |
| WO2022080405A1 (ja) * | 2020-10-14 | 2022-04-21 | 昭和電工マテリアルズ株式会社 | 光硬化性組成物及びその硬化物、光融解性樹脂組成物、並びに接着剤セット |
| JP2022064484A (ja) * | 2020-10-14 | 2022-04-26 | 昭和電工マテリアルズ株式会社 | 光硬化性組成物、光硬化性組成物の光硬化物、パターン膜及びパターン膜の製造方法 |
| WO2022153397A1 (ja) * | 2021-01-13 | 2022-07-21 | 昭和電工マテリアルズ株式会社 | 組成物、光融解性組成物及び化合物 |
| WO2022210045A1 (ja) * | 2021-03-30 | 2022-10-06 | 日東電工株式会社 | シーラントシート |
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| JPH1017852A (ja) * | 1996-07-04 | 1998-01-20 | Yokohama Rubber Co Ltd:The | 2液型ポリサルファイド系シーリング材組成物 |
| WO2018022457A1 (en) * | 2016-07-29 | 2018-02-01 | The Regents Of The University Of California | Accelerated healing by injectable multi-arm branched amphiphilic scaffolds loaded with hydrophobic drugs |
| WO2022080405A1 (ja) * | 2020-10-14 | 2022-04-21 | 昭和電工マテリアルズ株式会社 | 光硬化性組成物及びその硬化物、光融解性樹脂組成物、並びに接着剤セット |
| JP2022064484A (ja) * | 2020-10-14 | 2022-04-26 | 昭和電工マテリアルズ株式会社 | 光硬化性組成物、光硬化性組成物の光硬化物、パターン膜及びパターン膜の製造方法 |
| WO2022153397A1 (ja) * | 2021-01-13 | 2022-07-21 | 昭和電工マテリアルズ株式会社 | 組成物、光融解性組成物及び化合物 |
| WO2022210045A1 (ja) * | 2021-03-30 | 2022-10-06 | 日東電工株式会社 | シーラントシート |
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