WO2013153873A1 - 感光性化合物、感光性樹脂及び感光性組成物 - Google Patents
感光性化合物、感光性樹脂及び感光性組成物 Download PDFInfo
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- WO2013153873A1 WO2013153873A1 PCT/JP2013/055423 JP2013055423W WO2013153873A1 WO 2013153873 A1 WO2013153873 A1 WO 2013153873A1 JP 2013055423 W JP2013055423 W JP 2013055423W WO 2013153873 A1 WO2013153873 A1 WO 2013153873A1
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/008—Azides
- G03F7/012—Macromolecular azides; Macromolecular additives, e.g. binders
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- C07C233/00—Carboxylic acid amides
- C07C233/64—Carboxylic acid amides having carbon atoms of carboxamide groups bound to carbon atoms of six-membered aromatic rings
- C07C233/81—Carboxylic acid amides having carbon atoms of carboxamide groups bound to carbon atoms of six-membered aromatic rings having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by carboxyl groups
- C07C233/82—Carboxylic acid amides having carbon atoms of carboxamide groups bound to carbon atoms of six-membered aromatic rings having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by carboxyl groups with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by an acyclic carbon atom
- C07C233/83—Carboxylic acid amides having carbon atoms of carboxamide groups bound to carbon atoms of six-membered aromatic rings having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by carboxyl groups with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by an acyclic carbon atom of an acyclic saturated carbon skeleton
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- C07C247/16—Compounds containing azido groups with azido groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
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- C07C247/18—Compounds containing azido groups with azido groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton being further substituted by carboxyl groups
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- C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
- C07D233/54—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members
- C07D233/56—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, attached to ring carbon atoms
- C07D233/60—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, attached to ring carbon atoms with hydrocarbon radicals, substituted by oxygen or sulfur atoms, attached to ring nitrogen atoms
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- C07D—HETEROCYCLIC COMPOUNDS
- C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
- C07D233/54—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members
- C07D233/56—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, attached to ring carbon atoms
- C07D233/61—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, attached to ring carbon atoms with hydrocarbon radicals, substituted by nitrogen atoms not forming part of a nitro radical, attached to ring nitrogen atoms
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- C07D263/00—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings
- C07D263/02—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings
- C07D263/30—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D263/34—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D263/36—One oxygen atom
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- C07D263/02—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings
- C07D263/30—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D263/34—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D263/36—One oxygen atom
- C07D263/42—One oxygen atom attached in position 5
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- C07D295/00—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
- C07D295/04—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms
- C07D295/14—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
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- 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
- C08F116/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical
- C08F116/02—Homopolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical by an alcohol radical
- C08F116/04—Acyclic compounds
- C08F116/06—Polyvinyl alcohol ; Vinyl alcohol
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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
- C08F8/00—Chemical modification by after-treatment
- C08F8/30—Introducing nitrogen atoms or nitrogen-containing groups
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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
- C08G81/00—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers
- C08G81/02—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers at least one of the polymers being obtained by reactions involving only carbon-to-carbon unsaturated bonds
- C08G81/024—Block or graft polymers containing sequences of polymers of C08C or C08F and of polymers of C08G
- C08G81/025—Block or graft polymers containing sequences of polymers of C08C or C08F and of polymers of C08G containing polyether sequences
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/008—Azides
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/008—Azides
- G03F7/012—Macromolecular azides; Macromolecular additives, e.g. binders
- G03F7/0125—Macromolecular azides; Macromolecular additives, e.g. binders characterised by the polymeric binder or the macromolecular additives other than the macromolecular azides
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/038—Macromolecular compounds which are rendered insoluble or differentially wettable
- G03F7/0388—Macromolecular compounds which are rendered insoluble or differentially wettable with ethylenic or acetylenic bands in the side chains of the photopolymer
Definitions
- the present invention relates to a novel photosensitive compound, photosensitive resin and photosensitive composition.
- photosensitive compositions containing a photosensitive resin have been proposed as a resist used in a lithography process of a semiconductor, a coating material for building a functional surface on a substrate, and the like (Patent Document 1, etc.) reference).
- a photosensitive composition those containing water as a solvent and not containing an organic solvent are desired from the viewpoint of environmental problems. Therefore, the synthesis of the photosensitive resin is desirably performed in water not containing an organic solvent, not in an organic solvent or a mixed solvent of water and an organic solvent.
- water is used as a solvent in order to suppress the phenomenon that substances that affect the living body etc. are eluted from the substrate. It is particularly desirable to use a photosensitive composition that does not contain an organic solvent.
- the photosensitive resin can be produced, for example, by introducing a photosensitive compound into the polymer.
- Patent Document 1 describes a photosensitive compound that can be dissolved in water to some extent and introduced into a polymer by a synthesis reaction in water.
- a photosensitive compound having higher water solubility is desired.
- the photosensitive composition is preferably excellent in storage stability and can be produced with a cheap raw material, but the photosensitive composition described in Patent Document 1 has insufficient storage stability, and The photosensitive compound capable of synthesizing the photosensitive resin in water has a problem that the raw material used for producing the compound is high.
- the present invention can produce a photosensitive composition having excellent storage stability, a photosensitive compound having high water solubility and a low raw material, a photosensitive resin, and a photosensitive composition using the same.
- the challenge is to provide goods.
- n is an integer of 1 to 3
- R 1 is a linear or branched alkyl group having 1 to 6 carbon atoms, or two R 1 together Formed of an alkylene group having 2 to 6 carbon atoms
- R 2 is —NR 3 R 4
- R 3 and R 4 are each independently a linear or branched alkyl group having 1 to 6 carbon atoms.
- R 1 is preferably a methyl group or an ethyl group
- R 2 is preferably a group selected from the following.
- a photosensitive material obtained by pendating the photosensitive compound with an acetal bond onto a polyvinyl alcohol polymer having a structure in which at least two repeating units formed of vinyl alcohol are continuous. Is in a functional resin.
- n is an integer of 1 to 3
- R 2 is a group selected from the following formulas.
- the polyvinyl alcohol polymer may be a copolymer of vinyl alcohol and at least one selected from vinyl acetate, diacetone acrylamide, acrylamide, acrylic acid and polyethylene glycol.
- Another aspect of the present invention is a photosensitive composition characterized by containing the photosensitive resin and water.
- Another aspect of the present invention is a compound represented by the following formula (4), a compound represented by the following formula (5), and the following formula (6). It exists in the compound characterized by the above-mentioned.
- R 2 is —NR 3 R 4
- R 3 and R 4 are each independently a linear or branched alkyl or alkenyl group having 1 to 6 carbon atoms, or R 3 And R 4 are taken together to form a linear or branched alkylene group having 2 to 6 carbon atoms, or a linear or branched group having 3 to 8 carbon atoms that may contain an oxygen atom or a nitrogen atom An alkylene group or an alkenylene group.
- a photosensitive compound that can be produced from an inexpensive raw material and has high water solubility can be provided.
- the photosensitive composition containing water and the photosensitive resin which made this photosensitive compound the pendant to the polyvinyl alcohol-type polymer by the acetal bond is excellent in long-term storage stability.
- 2 is an infrared absorption spectrum of [Photosensitive material A] obtained in Example 1.
- 2 is an infrared absorption spectrum of [Photosensitive material C] obtained in Example 2.
- 6 is an ultraviolet absorption spectrum of [Photosensitive material G] obtained in Example 6.
- 6 is an ultraviolet absorption spectrum of a film of [photosensitive resin J] obtained in Example 9.
- 4 is an infrared absorption spectrum of a film of [Photosensitive resin J] obtained in Example 9.
- the photosensitive compound of the present invention is an acetal compound or an aldehyde compound having a predetermined structure having an azide group and a tertiary amino group, and is represented by the photosensitive compound represented by the above formula (1) or the above formula (2).
- R 1 is a linear or branched alkyl group having 1 to 6 carbon atoms, or 2 to 6 carbon atoms formed by combining two R 1 together.
- R 2 is —NR 3 R 4
- R 3 and R 4 are each independently a linear or branched alkyl or alkenyl group having 1 to 6 carbon atoms
- R 3 and R 4 are A linear or branched alkylene group having 2 to 6 carbon atoms formed together, or a linear or branched alkylene group having 3 to 8 carbon atoms which may contain an oxygen atom or a nitrogen atom, or An alkenylene group, which is preferably a group selected from the following formulas from the viewpoint of cost.
- X represents a substitution position, that is, a bonding position with a methylene group bonded to the benzene ring.
- the position of R 2 —CH 2 — in the benzene ring is not particularly limited, and may be any of the para position, the meta position, and the ortho position with respect to the —CONH— group in the benzene ring.
- N is an integer of 1 to 3, and n is preferably 3 from the viewpoint of easy reactivity with the polyvinyl alcohol polymer.
- the photosensitive compound represented by the formula (1) or the photosensitive compound represented by the formula (2) of the present invention has an absorption wavelength at 250 nm to 400 nm, that is, reacts to light having a wavelength of 400 nm or less. Having a photosensitive group.
- the photosensitive compound represented by the formula (1) and the photosensitive compound represented by the formula (2) have very high water solubility in the acidic range.
- 100 g of acidic water having a pH of 1.5 to 3 is used.
- the polymer By reacting a repeating unit with a polymer having two consecutive structures in acidic water, the polymer can be pendant via an acetal group or an aldehyde group. Therefore, it is possible to synthesize a photosensitive resin without using an organic solvent such as alcohol, which causes a problem of environmental burden. And, since it is possible to synthesize a photosensitive resin using water as a reaction solvent, without performing an operation of removing the organic solvent after the synthesis reaction of the photosensitive resin, as it is, or diluted with water as needed, A photosensitive composition containing water as a solvent without containing an organic solvent can be obtained.
- the photosensitive compound represented by Formula (1) and the photosensitive compound represented by Formula (2) have very high water solubility in an acidic region, a high-concentration aqueous solution is used as a polymer and an acetal.
- the polymer can be pendant to the polymer.
- the photosensitive compound represented by Formula (1) and the photosensitive compound represented by Formula (2) can be manufactured with an inexpensive raw material.
- Patent Document 1 also describes a photosensitive compound having water solubility, and this photosensitive compound can be reacted with a polymer in water to pendant the photosensitive compound onto the polymer.
- the water-soluble photosensitive compound described in Patent Document 1 is more water-soluble than the photosensitive compound represented by the formula (1) and the photosensitive compound represented by the formula (2) of the present invention.
- the photosensitive composition containing a photosensitive resin in which a photosensitive compound is pendant on a polymer in water is not good in long-term storage stability because the property is not sufficient.
- the method for synthesizing the photosensitive compound represented by formula (1) and the photosensitive compound represented by formula (2) is not particularly limited.
- the compound represented by formula (1) is represented by the following reaction formula.
- it can manufacture by making the secondary amine compound NR ⁇ 3 > R ⁇ 4 > H react with the compound which has a halogenated methyl group represented by Formula (a).
- n and R 1 are the same as n and R 1 in the formula (1), and Q is a halogen atom, specifically a chlorine atom or a bromine atom.
- This reaction may be performed, for example, in the presence of triethylamine or the like in a solvent such as acetonitrile for about 3 to 8 hours.
- the compound which has a halogenated methyl group represented by Formula (a) is represented by Formula (b) in the compound which has an azlactone ring represented by Formula (4), as shown in the following reaction formula. It can be produced by reacting an acetal compound.
- n and R 1 are the same as n and R 1 in formula (1), and Q is the same as Q in formula (a). This reaction may be performed, for example, without a catalyst in a solvent such as tetrahydrofuran for about 3 to 8 hours.
- the compound having an azlactone ring represented by formula (4) can be produced by reacting azidobenzaldehyde with a compound having a carboxy group represented by formula (5) as shown in the following reaction formula. .
- Q is the same as Q in formula (a). This reaction may be performed, for example, in the presence of acetic anhydride and sodium acetate in a solvent such as acetonitrile for about 5 to 12 hours.
- a compound having a carboxyl group represented by formula (5) is added with ethyl chloroformate in a solvent such as acetonitrile in the presence of a base such as triethylamine to form an azlactone ring, and further reacted with azidobenzaldehyde.
- a solvent such as acetonitrile
- a base such as triethylamine
- the compound which has a carboxy group represented by Formula (5) can be manufactured by making glycine react with halogenated methylbenzoyl chloride, as shown by the following reaction formula.
- Q is the same as Q in formula (a).
- This reaction may be performed, for example, using sodium hydroxide or the like as a catalyst in a solvent such as a mixed solvent of water and acetonitrile for about 1 to 8 hours.
- the photosensitive compound represented by Formula (1) is manufactured by making the compound represented by Formula (6) react with the acetal compound represented by Formula (b), as shown by the following reaction formula. it can.
- R 2 is the same as R 2 in the formula (1)
- n and R 1 are the same as n and R 1 in formula (1).
- This reaction may be performed, for example, without a catalyst and in a solvent such as tetrahydrofuran for about 1 to 5 hours.
- the photosensitive compound represented by Formula (6) can be manufactured by making azidobenzaldehyde react with the compound which has a carboxy group represented by Formula (c), as shown by the following Reaction Formula. .
- R 2 is the same as R 2 in formula (1). This reaction may be performed, for example, in the presence of acetic anhydride or the like in a solvent such as acetonitrile for about 5 to 12 hours.
- a compound having a carboxyl group represented by the formula (c) is added with ethyl chloroformate in a solvent such as acetonitrile in the presence of a base such as triethylamine to form an azlactone ring and further reacted with azidobenzaldehyde.
- a solvent such as acetonitrile
- a base such as triethylamine
- the compound represented by Formula (c) is made to react the secondary amine compound NR ⁇ 3 > R ⁇ 4 > H with the compound which has a carboxy group represented by Formula (5), as shown by the following Reaction Formula. Can be manufactured.
- Q is a halogen atom
- R 2 is the same as R 2 in formula (1). This reaction may be performed, for example, in the presence of triethylamine or the like in a solvent such as water or acetonitrile for about 3 to 12 hours.
- the photosensitive compound represented by the formula (2) is obtained by hydrolyzing the photosensitive compound represented by the formula (1).
- the photosensitive compound represented by the above formula (1) and the photosensitive compound represented by the formula (2) are obtained by adding an acetal to a polyvinyl alcohol polymer having a structure in which at least two repeating units formed of vinyl alcohol are continuous. It can be set as the photosensitive resin of this invention by making it pendant by coupling
- This photosensitive resin of the present invention has a structure derived from the photosensitive compound represented by the above formula (1) and the photosensitive compound represented by the formula (2) in the side chain, and therefore has photocrosslinkability. For example, it can be cross-linked by irradiating with light having a wavelength in the range of 250 nm to 400 nm to form a photocured body.
- the photosensitive resin of the present invention is photocrosslinkable if the photosensitive compound represented by formula (1) or the photosensitive compound represented by formula (2) is pendant with an acetal bond on a polyvinyl alcohol polymer.
- the photosensitive compound represented by the formula (1) or the photosensitive compound represented by the formula (2) is 0.1 mol% to 3 mol% acetal bond with respect to the polyvinyl alcohol polymer.
- the photosensitive compound represented by multiple types of Formula (1) and the photosensitive compound represented by Formula (2) are pendant to the polyvinyl alcohol polymer by an acetal bond, Formula (1)
- the total amount of the photosensitive compound represented by formula (2) and the photosensitive compound represented by formula (2) is 0.1 mol% to 3 mol% acetal based on a structure in which at least two repeating units formed of vinyl alcohol are continuous. It is preferably pendant with a bond.
- repeating unit formed with vinyl alcohol is a structure formed using vinyl alcohol as a monomer, and has the following structure.
- the structure in which at least two repeating units formed of vinyl alcohol are continuous is the following structure.
- Such a polyvinyl alcohol polymer may be polyvinyl alcohol or a copolymer of vinyl alcohol and another vinyl compound.
- the copolymer include a copolymer of vinyl alcohol and at least one selected from vinyl acetate, diacetone acrylamide, acrylamide, acrylic acid, and polyethylene glycol.
- the copolymer may be any of a random copolymer, a block copolymer, and a graft copolymer.
- the repeating unit formed with the said vinyl alcohol is 70 mass% or more in a copolymer.
- Polyvinyl alcohol preferably has an average degree of polymerization of 200 to 5000, for example.
- the average degree of polymerization is less than 200, it is difficult to obtain sufficient sensitivity, and when the average degree of polymerization is more than 5000, the viscosity of the solution of the photosensitive resin becomes high and the applicability is deteriorated. Further, if the concentration is lowered to lower the viscosity, it becomes difficult to obtain a desired coating film thickness.
- examples of copolymers of vinyl alcohol and other vinyl compounds include those having an average polymerization degree of 200 to 5,000.
- the photosensitive resin of the present invention can be obtained.
- the reaction conditions are not particularly limited, but the reaction is preferably carried out in water adjusted to pH 1.5-3 by adding phosphoric acid, p-toluenesulfonic acid or the like.
- the reaction may be performed at 50 to 70 ° C. for about 5 to 48 hours.
- Aliphatic aldehydes such as formaldehyde, acetaldehyde, propionaldehyde, butyraldehyde, crotonaldehyde, benzaldehyde, sulfonate, benzaldehyde-disulfonate, sodium 4-azido-2-sulfobenzaldehyde, carboxybenzaldehyde, hydroxybenzaldehyde, formyl
- Aromatic aldehydes such as styrylpyridinium salts or acetals thereof, and ketones such as acetone and methyl ethyl ketone can be reacted simultaneously.
- the photosensitive composition of the present invention contains the photosensitive resin of the present invention and water.
- the ratio of the photosensitive resin contained in the photosensitive composition of the present invention is not particularly limited, and for example, a photosensitive composition having a photosensitive resin concentration of 4 to 15% by mass can be obtained.
- the photosensitive composition of the present invention may contain a water-soluble polymer other than the photosensitive resin of the present invention and a water-soluble azide compound.
- water-soluble polymer examples include natural polymer such as saponified polyvinyl acetate, gelatin, cellulose derivative, and casein, and a polymer or copolymer composed of a water-soluble vinyl monomer.
- water-soluble vinyl monomer examples include N-vinylformamide, N-vinylacetamide, vinylpyrrolidone, acrylamide, diacetoneacrylamide, N, N-dimethylacrylamide, vinylpyridine, methacrylamide, and allylthiourea.
- water-soluble azide compound examples include 4,4′-diazidostilbene-2,2′-disulfonic acid, 4,4′-diazidobenzalacetophenone-2-sulfonic acid, and 4,4′-disulfonic acid.
- examples thereof include azidostilbene- ⁇ -carboxylic acid and alkali metal salts, ammonium salts and organic amine salts thereof.
- the photosensitive composition of the present invention may contain, for example, ethylene glycol, sorbitol, or a surfactant for improving coating properties and moisture retention properties.
- the photosensitive composition of the present invention may contain a so-called silane coupling material that is an adhesion promoter for improving the adhesion to the substrate.
- adhesion promoter include water-soluble adhesion promoters such as N- ⁇ (aminoethyl) -aminopropylmethyldimethoxysilane and N- ⁇ (aminoethyl) - ⁇ -aminopropyltrimethoxysilane.
- the photosensitive composition of the present invention contains a preservative, an antifoaming agent, a pH adjuster, and a hydrophobic polymer emulsion for improving film strength, water resistance, adhesion to various substrates and the like. You may do it.
- the hydrophobic emulsion include polyvinyl acetate emulsion, polyacrylate emulsion, and urethane emulsion. Pattern formation using a composition containing a hydrophobic polymer emulsion can be suitably used, for example, when producing a screen printing plate.
- the photosensitive composition of the present invention may contain a colorant such as a pigment or a dye in order to prevent halation due to exposure or to obtain a colored image.
- Such a photosensitive composition of the present invention is excellent in storage stability as the viscosity hardly increases even when stored for a long period of time, as shown in the Examples described later.
- the photosensitive resin of the present invention can be synthesized using water as a reaction solvent without using an organic solvent, an operation of removing the organic solvent is performed on the synthesized photosensitive resin.
- a photosensitive composition containing water as a solvent without containing an organic solvent as it is or after being diluted with water as necessary.
- such a photosensitive composition containing no organic solvent is suitable for use in manufacturing a medical device, a biochemical test device or the like by coating the substrate.
- a material such as plastic is used as a base material
- a photosensitive composition containing an organic solvent is coated on the base material, a substance (such as a protein, cell, or enzyme) that affects the living body ( Since a plasticizer etc. are easily eluted from a base material, it is difficult to use a base material coated with a photosensitive composition containing an organic solvent as a medical device or a biochemical test device.
- the photosensitive composition of the present invention can contain water as a solvent and does not contain an organic solvent, it may be coated on a substrate made of a material such as plastic that causes a problem of elution due to the organic solvent. It can be used as a medical device or a biochemical test device that comes into contact with living bodies such as proteins, cells, and enzymes.
- the material of the base material is not particularly limited, and examples thereof include glass and plastic.
- the shape of the substrate is not particularly limited, and examples thereof include a fiber shape, a film shape, a plate shape, and a shape in which a plurality of holes are formed.
- the formed coating film is irradiated with light having a wavelength in the range of 250 nm to 400 nm, for example,
- a photocured body in which a photosensitive resin is crosslinked can be formed on a substrate.
- the photocuring body which has a desired pattern shape on a base material can be obtained by providing the mask of predetermined shape, irradiating light to the said coating film, and wash
- a photocured body is formed on the substrate thus obtained include, for example, a biochip, a biosensor, a cell culture container, a protein analysis container, an enzyme reaction container, a protein analysis container having a channel shape, etc.
- the photosensitive composition of the present invention can be used as a medical device or biochemical test device. It can also be used to immobilize biocatalysts such as enzymes and microorganisms. Since the photosensitive composition of the present invention has high resolution, not only the production of the above-mentioned medical device or biochemical test device, the use of immobilizing a biocatalyst, but also the lithography process of a semiconductor having a fine structure, etc. It can also be used as a resist used in.
- 3 g of glycine was dissolved in a mixed solution of 20 g of water, 10 g of acetonitrile and 2 g of sodium hydroxide, and the solution temperature was cooled to 10 ° C. to prepare a glycine solution. Further, 8 g of chloromethylbenzoyl chloride was dissolved in 20 g of acetonitrile, and a solution cooled to 10 ° C. was dropped into the above glycine solution over 2 hours. At the same time, a solution obtained by dissolving 2 g of sodium hydroxide in 20 g of water was added dropwise to the glycine solution over 2 hours.
- the mixture was acidified with a 5% by mass hydrochloric acid aqueous solution to precipitate the target chloromethylbenzoylglycine, which was filtered and dried to obtain 7 g of the target chloromethylbenzoylglycine.
- Example 2 6 g of [Photosensitive material A] obtained in Example 1 was dispersed in 30 g of tetrahydrofuran (hereinafter referred to as THF), and a solution of 3 g of aminobutyraldehyde dimethyl acetal in 20 g of THF was cooled to 10 ° C. in this dispersion. The solution was added dropwise over 1 hour. Thereafter, the mixture was allowed to stand for 3 hours, 150 g of water was added, and the precipitate was filtered and dried to obtain 6 g of [photosensitive material B] as the target compound.
- THF tetrahydrofuran
- Photosensitive material D represented by the following formula (3- (4-azidophenyl) -N- (4,4′-dimethoxybutyl) -2- (4-imidazolylmethylphenyl) carbonylamino- Synthesis of prop-2-enamide)
- the compound [photosensitive material B] obtained in Synthesis Example 2 was dissolved in 6 g, diallylamine 1.3 g, triethylamine 1.1 g, and acetonitrile 40 g, reacted at 50 ° C. for 7 hours, cooled, 250 g of water was added, and the precipitate was added. By filtering off and drying, 3 g of [photosensitive material E] as the target compound was obtained.
- 3 g of glycine was dissolved in a mixed solution of 20 g of water, 10 g of acetonitrile and 2 g of sodium hydroxide, and the solution temperature was cooled to 10 ° C. to prepare a glycine solution. Further, 8 g of chloromethylbenzoyl chloride was dissolved in 20 g of acetonitrile, and a solution cooled to 10 ° C. was dropped into the above glycine solution over 2 hours. At the same time, a solution obtained by dissolving 2 g of sodium hydroxide in 20 g of water was added dropwise to the glycine solution over 2 hours. After 5 hours, 4 g of morpholine was added and reacted at 60 ° C.
- Example 7 [Photosensitive material G] Synthesis of (4- (4-azidophenylmethylene) -2- (4-morpholinomethylphenyl) -1,3-oxazolin-5-one) (different from Example 6) Synthesis method) 10 g of chloromethylbenzoylglycine obtained in Synthesis Example 1 was dispersed in 30 g of acetonitrile, added with 4.5 g of triethylamine and 4 g of morpholine, and reacted at 60 ° C. for 4 hours to obtain morpholinomethylbenzoylglycine. The reaction solution was cooled to 10 ° C.
- Example 8 [Photosensitive material C] (3- (4-azidophenyl) -N- (4,4′-dimethoxybutyl) -2- (4-morpholinomethylphenyl) carbonylamino-prop-2-enamide) (Synthesis method different from Example 2) 6 g of [Photosensitive material G] obtained in Example 7 was dispersed in 30 g of THF, and a solution prepared by dissolving 3 g of aminobutyraldehyde dimethyl acetal in 20 g of THF was added dropwise to the dispersion over 1 hour while cooling to 10 ° C.
- Example 9 Synthesis of [Photosensitive Resin J] and Preparation of Photosensitive Composition 40 g of polyvinyl alcohol (“GOHSENOL EG-30” manufactured by Nippon Synthetic Chemical Industry Co., Ltd .: average polymerization degree 1700) was dissolved in 400 g of water. To this, 4 g of [Photosensitive material C] obtained in Example 2 and 2 g of phosphoric acid were added and reacted at 60 ° C. for 24 hours. The acetalization reaction rate was 98% as measured by GPC (gel permeation chromatography). From the measurement results, the amount of acetalization was calculated as an amount corresponding to 0.8 mol% with respect to polyvinyl alcohol.
- polyvinyl alcohol (“GOHSENOL EG-30” manufactured by Nippon Synthetic Chemical Industry Co., Ltd .: average polymerization degree 1700) was dissolved in 400 g of water.
- 4 g of [Photosensitive material C] obtained in Example 2 and 2 g of phosphoric acid were added and reacted
- phosphoric acid was removed by treatment with an ion exchange resin to obtain a photosensitive solution containing a photosensitive resin in which [Photosensitive material C] was pendant to polyvinyl alcohol with an acetal bond.
- This photosensitive solution was diluted with water to prepare a photosensitive composition having a photosensitive resin concentration of 6% by mass.
- the obtained photosensitive composition was applied to a glass plate and dried to obtain a coating film having a thickness of 1.0 ⁇ m.
- the coated film is adhered to Toppan Printing Co., Ltd. test mask, the coating through the mask, an ultrahigh-pressure mercury lamp measured at (ultraviolet illuminance 5 mW / cm 2 :( Ltd.) Oak Seisakusho illuminometer "UV-35")
- UV-35 ultrahigh-pressure mercury lamp measured at
- the ultraviolet absorption spectrum was measured about the film
- the ultraviolet absorption spectrum is shown in FIG.
- the obtained photosensitive composition was applied and dried to form a film having a thickness of 3 ⁇ m, and the film was obtained by peeling the film from the PET film, that is, the infrared of the film of [photosensitive resin J].
- the absorption spectrum was measured, an absorption 2020 cm ⁇ 1 derived from an azide group was confirmed.
- the infrared absorption spectrum is shown in FIG.
- Example 10 Synthesis of [Photosensitive Resin K] and Preparation of Photosensitive Composition 40 g of diacetone acrylamide copolymer polyvinyl alcohol (“DF-20” manufactured by Nippon Vinegar Poval Co., Ltd.) was dissolved in 400 g of water. To this, 4 g of [Photosensitive material C] obtained in Example 2 and 2 g of phosphoric acid were added and reacted at 50 ° C. for 48 hours. The acetalization reaction rate was 98% as measured by GPC (gel permeation chromatography). From the measurement results, the amount of acetalization was calculated as an amount corresponding to 0.8 mol% with respect to the polymer.
- DF-20 diacetone acrylamide copolymer polyvinyl alcohol
- phosphoric acid was removed by treatment with an ion exchange resin, and a photosensitive solution containing a photosensitive resin in which [photosensitive material C] was pendant to diacetone acrylamide copolymer polyvinyl alcohol with an acetal bond was obtained.
- This photosensitive solution was diluted with water to prepare a photosensitive composition having a photosensitive resin concentration of 6% by mass.
- the obtained photosensitive composition was applied to a glass plate and dried to obtain a coating film having a thickness of 1.0 ⁇ m.
- the coating film is adhered to a test mask manufactured by Toppan Printing Co., Ltd., through the mask, an ultrahigh-pressure mercury lamp measured at (ultraviolet illuminance 5 mW / cm 2 :( Ltd.) Oak Seisakusho illuminometer "UV-35")
- UV-35 ultrahigh-pressure mercury lamp measured at (ultraviolet illuminance 5 mW / cm 2 :( Ltd.) Oak Seisakusho illuminometer
- Example 11 Synthesis of [Photosensitive Resin L] 40 g of polyvinyl alcohol-polyethylene glycol graft copolymer (“Kollicoat IR” manufactured by BASF) was dissolved in 300 g of water, and [Photosensitive material obtained in Example 2] C] 4 g and 2 g of phosphoric acid were added and reacted at 50 ° C. for 48 hours. The acetalization reaction rate was 98% as measured by GPC (gel permeation chromatography). From the measurement results, the amount of acetalization was calculated as an amount corresponding to 0.8 mol% with respect to the polymer.
- Polyvinyl alcohol-polyethylene glycol graft copolymer (“Kollicoat IR” manufactured by BASF) was dissolved in 300 g of water, and [Photosensitive material obtained in Example 2] C] 4 g and 2 g of phosphoric acid were added and reacted at 50 ° C. for 48 hours. The acetalization reaction rate was 98% as measured by GPC (gel permeation
- phosphoric acid was removed by treatment with an ion exchange resin, and a photosensitive solution containing a photosensitive resin in which [photosensitive material C] was pendant to the polyvinyl alcohol-polyethylene glycol graft copolymer by an acetal bond was prepared.
- This photosensitive solution was diluted with water to prepare a photosensitive composition having a photosensitive resin concentration of 10% by mass.
- the obtained photosensitive composition was applied to a glass plate and dried to obtain a coating film having a thickness of 0.6 ⁇ m.
- the coating film is adhered to a test mask manufactured by Toppan Printing Co., Ltd., through the mask, an ultrahigh-pressure mercury lamp measured at (ultraviolet illuminance 5 mW / cm 2 :( Ltd.) Oak Seisakusho illuminometer "UV-35")
- UV-35 ultrahigh-pressure mercury lamp measured at (ultraviolet illuminance 5 mW / cm 2 :( Ltd.) Oak Seisakusho illuminometer
- Comparative Example 1 Synthesis of [Comparative Photosensitive Resin M] 40 g of polyvinyl alcohol (“EG-30” manufactured by Nippon Synthetic Chemical Industry Co., Ltd.) was dissolved in 400 g of water, and obtained in Comparative Synthesis Example 2 [ Comparative Photosensitive Material I] 4 g and phosphoric acid 2 g were added and reacted at 60 ° C. for 24 hours. The acetalization reaction rate was 98% as measured by GPC (gel permeation chromatographic analysis). From the measurement results, the amount of acetalization was calculated as an amount corresponding to 0.8 mol% with respect to the polymer.
- EG-30 polyvinyl alcohol
- Comparative Synthesis Example 2 Comparative Photosensitive Material I
- phosphoric acid 2 g were added and reacted at 60 ° C. for 24 hours.
- the acetalization reaction rate was 98% as measured by GPC (gel permeation chromatographic analysis). From the measurement results, the amount of acetalization was calculated as an amount corresponding to 0.8
- phosphoric acid was removed by treatment with an ion exchange resin to obtain a photosensitive solution containing a photosensitive resin in which [Comparative Photosensitive Material I] was pendant to polyvinyl alcohol with an acetal bond.
- This photosensitive solution was diluted with water to prepare a photosensitive composition having a photosensitive resin concentration of 6% by mass.
- the obtained photosensitive composition was applied to a glass plate and dried to obtain a coating film having a thickness of 1.0 ⁇ m.
- a test mask made by Toppan Printing Co., Ltd. was brought into close contact with this coating film, and the ultra-high pressure mercury lamp (ultraviolet illuminance 5 mW / cm 2 : measured with an illuminance meter “UV-35” made by Oak Manufacturing Co., Ltd.)
- the coating was exposed for 15 seconds, then developed with water for 60 seconds and dried.
- the line width of 50 ⁇ m with no residual development was clearly developed, but the line width of 30 ⁇ m was partially resolved, but some lines were thickened, and the resolution was higher than in Example 1. Was bad.
- the photosensitive compounds of the present invention (photosensitive materials C to F) obtained in Examples 2 to 5 had very high solubility in an aqueous phosphoric acid solution.
- [Comparative Photosensitive Material H] obtained in Comparative Synthesis Example 1 had very low solubility in an aqueous phosphoric acid solution.
- [Comparative Photosensitive Material I] obtained in Comparative Synthesis Example 2 was dissolved in phosphoric acid aqueous solution more than Comparative Synthesis Example 1 [Comparative Photosensitive Material H], but Photosensitive Materials C to C obtained in Examples 2 to 5 were used. Compared with F, the solubility was low.
- Example 2 The photosensitive composition of 6% by mass obtained in Example 9 and Comparative Example 1 was placed in a plastic container and stored for 1 year in a refrigerator at 4 ° C. under light shielding, and the viscosity was measured at 25 ° C. Table 2 shows the results at 0 day (at the start), 6 months, and 1 year.
- the photosensitive composition containing [Photosensitive Resin J] of Example 9 has a viscosity even when stored in a plastic container and protected from light in a refrigerator at 4 ° C. for 1 year. No increase was observed, and the storage stability was excellent.
- the photosensitive composition containing [Comparative Photosensitive Resin M] of Comparative Example 1 showed a phenomenon in which the viscosity gradually increased with time.
- the viscosity of the photosensitive composition of the present invention is kept constant over a long period of time because the photosensitive compound of the present invention has very good solubility in an acidic aqueous solution of phosphoric acid, so that during the acetalization reaction to the polymer This is probably because the photosensitive compound is uniformly introduced into the polymer, so that aggregation of the photosensitive groups hardly occurs during storage.
- Comparative Example 1 since the water solubility in the acidic region of the photosensitive compound is lower than the water solubility of the photosensitive compound of the present invention, the photosensitive resin is completely dissolved at the end of the reaction, Since it is in a state of being dispersed in water, the photosensitive compound pendant on the photosensitive resin is microscopically uneven in density, and it is considered that partial aggregation occurs during long-term storage and the viscosity increases.
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Abstract
Description
合成例1で得たクロロメチルベンゾイルグリシン10gをアセトニトリル30gに分散し、トリエチルアミン4.5g、モルホリン4gを加え、60℃で、4時間反応し、モルホリノメチルベンゾイルグリシンを得た。そのまま、反応液を10℃に冷却し、トリエチルアミン4.5gを加え、クロロギ酸エチル5gを30分間かけて滴下した。その後2時間攪拌を続け、アジドベンズアルデヒド6gを加え、20℃で16時間反応させた。その後、析出物をろ別及び乾燥することにより目的とする化合物である[感光材G]を6g得た。[感光材G]をアセトニトリルに溶解し紫外線吸収スペクトルを測定し、アズラクトン環に由来する吸収ピークを387nmに有することを確認した。また、[感光材G]の赤外吸収スペクトルをKBr法で測定した結果、アジド基に由来する吸収2115.5cm-1を確認した。また、1792.5cm-1に、アズラクトンの吸収を確認した。
実施例7で得た[感光材G] 6gをTHF 30gに分散させ、この分散液に、アミノブチルアルデヒドジメチルアセタール3gをTHF20gに溶解した溶液を10℃に冷却しながら1時間かけて滴下した。その後、3時間放置し、水150gを加えて析出物をろ別及び乾燥することにより、目的とする化合物である[感光材C]を5g得た。[感光材C]の赤外線吸収スペクトルをKBr法で測定したところ、アジド基に由来する吸収2019.4cm-1を確認した。
ポリビニルアルコール(日本合成化学工業(株)製「ゴーセノールEG-30」:平均重合度1700)40gを水400gに溶解し、これに、実施例2で得た[感光材C] 4g、燐酸2gを加え、60℃で24時間反応させた。アセタール化反応率は、GPC(ゲル浸透クロマトグラフ分析)で測定し、98%であった。測定結果から、アセタール化量はポリビニルアルコールに対し0.8モル%に相当する量と算出した。その後、燐酸をイオン交換樹脂で処理することにより除去し、[感光材C]がポリビニルアルコールにアセタール結合でペンダントされた感光性樹脂を含有する感光液を得た。この感光液を水で希釈し、感光性樹脂の濃度が6質量%である感光性組成物を調整した。
ダイアセトンアクリルアミド共重合ポリビニルアルコール(日本酢ビ・ポバール(株)製「DF-20」)40gを水400gに溶解し、これに、実施例2で得た[感光材C] 4g、燐酸2gを加え、50℃で48時間反応させた。アセタール化反応率は、GPC(ゲル浸透クロマトグラフ分析)で測定し、98%であった。その測定結果から、アセタール化量はポリマーに対し0.8モル%に相当する量と算出した。その後、燐酸をイオン交換樹脂で処理することにより除去し、[感光材C]がダイアセトンアクリルアミド共重合ポリビニルアルコールにアセタール結合でペンダントされた感光性樹脂を含有する感光液を得た。この感光液を水で希釈し、感光性樹脂の濃度が6質量%である感光性組成物を調整した。
ポリビニルアルコール-ポリエチレングリコールグラフト共重合体(BASF製「Kollicoat IR」) 40gを水300gに溶解し、これに、実施例2で得た[感光材C] 4g、燐酸2gを加え、50℃で48時間反応させた。アセタール化反応率は、GPC(ゲル浸透クロマトグラフ分析)で測定し、98%であった。その測定結果から、アセタール化量はポリマーに対し0.8モル%に相当する量と算出した。その後、燐酸をイオン交換樹脂で処理することにより除去し、[感光材C]がポリビニルアルコール-ポリエチレングリコールグラフト共重合体にアセタール結合でペンダントされた感光性樹脂を含有する感光液を調整した。この感光液を水で希釈し、感光性樹脂の濃度が10質量%である感光性組成物を調整した。
ポリビニルアルコール(日本合成化学工業(株)製「EG-30」)40gを水400gに溶解し、これに、比較合成例2で得た[比較感光材I] 4g、燐酸2gを加え、60℃で24時間反応させた。アセタール化反応率は、GPC(ゲル浸透クロマトグラフ分析)で測定し98%であった。その測定結果から、アセタール化量はポリマーに対し0.8モル%に相当する量と算出した。その後、燐酸をイオン交換樹脂で処理することにより除去し、[比較感光材I]がポリビニルアルコールにアセタール結合でペンダントされた感光性樹脂を含有する感光液を得た。この感光液を水で希釈し、感光性樹脂の濃度が6質量%である感光性組成物を調整した。
比較合成例1~2及び実施例2~5で得られた感光性化合物(比較感光材H~I及び感光材C~F)について、中性の水100g(水温:20℃)への溶解性を調べた。また、燐酸4gを水100gに混合して得られた燐酸水溶液(液温:20℃)への溶解性も調べた。感光性化合物が溶解した量を、表1に示す。
実施例9及び比較例1で得られた6質量%の感光性組成物を、プラスチック容器に入れ遮光下、4℃の冷蔵庫内で1年間保存し、25℃で粘度を測定した。0日(開始時)、6ヶ月経過時、及び、1年経過時の結果を表2に示す。
Claims (9)
- ビニルアルコールで形成される繰り返し単位が少なくとも二つ連続した構造を有するポリビニルアルコール系重合体に、請求項1に記載する感光性化合物をアセタール結合でペンダントさせてなることを特徴とする感光性樹脂。
- 前記ポリビニルアルコール系重合体が、ビニルアルコールと、酢酸ビニル、ダイアセトンアクリルアミド、アクリルアミド、アクリル酸及びポリエチレングリコールから選択される少なくとも一種との共重合体であることを特徴とする請求項3又は4に記載する感光性樹脂。
- 請求項3~5のいずれか一項に記載する感光性樹脂及び水を含有することを特徴とする感光性組成物。
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JP2021055045A (ja) * | 2019-09-27 | 2021-04-08 | 積水化学工業株式会社 | ポリビニルアセタール樹脂 |
JP2021155725A (ja) * | 2020-03-27 | 2021-10-07 | 積水化学工業株式会社 | ポリビニルアセタール樹脂 |
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US20150079519A1 (en) | 2015-03-19 |
JPWO2013153873A1 (ja) | 2015-12-17 |
JP6053194B2 (ja) | 2016-12-27 |
US9223210B2 (en) | 2015-12-29 |
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