WO2023200151A1 - 폴리이미드 전구체 - Google Patents
폴리이미드 전구체 Download PDFInfo
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- WO2023200151A1 WO2023200151A1 PCT/KR2023/004166 KR2023004166W WO2023200151A1 WO 2023200151 A1 WO2023200151 A1 WO 2023200151A1 KR 2023004166 W KR2023004166 W KR 2023004166W WO 2023200151 A1 WO2023200151 A1 WO 2023200151A1
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- carbon atoms
- polyamic acid
- polyimide precursor
- dianhydride
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- 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
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
- C08G73/1003—Preparatory processes
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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
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
- C08G73/1003—Preparatory processes
- C08G73/1007—Preparatory processes from tetracarboxylic acids or derivatives and diamines
- C08G73/1028—Preparatory processes from tetracarboxylic acids or derivatives and diamines characterised by the process itself, e.g. steps, continuous
- C08G73/1032—Preparatory processes from tetracarboxylic acids or derivatives and diamines characterised by the process itself, e.g. steps, continuous characterised by the solvent(s) used
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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
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
- C08G73/1067—Wholly aromatic polyimides, i.e. having both tetracarboxylic and diamino moieties aromatically bound
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
- C08L79/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08L79/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2379/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2361/00 - C08J2377/00
- C08J2379/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08J2379/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
Definitions
- This application relates to a polyimide precursor containing a polyamic acid, a method for producing the polyamic acid, a method for increasing the molecular weight of the polyamic acid, a film containing the precursor, and a display device in which the film is attached to a substrate.
- polyimide is a polymer of imide monomers formed by solution polymerization of dianhydride and diamine or diisocyanate, and has excellent strength, chemical resistance, weather resistance, and heat resistance based on the chemical stability of the imide ring. It has mechanical properties such as:
- polyimide is attracting attention as a highly functional polymer material that can be applied to a wide range of industrial fields such as electronics, communications, and optics due to its excellent electrical properties such as insulating properties and low dielectric constant.
- polyimide refers to a highly heat-resistant resin produced by solution polymerizing dianhydride monomer and diamine monomer to produce polyamic acid, and then imidizing it by ring-closure dehydration at high temperature.
- This application discloses a polyimide precursor capable of simultaneously realizing mechanical properties under harsh conditions such as low dielectric constant, light resistance, heat resistance, insulation, and high temperature, including high molecular weight polyamic acid, a method for producing the polyamic acid, and a molecular weight of the polyamic acid.
- a method for increasing the volume, a film containing the precursor, and a display device in which the film is attached to a lower portion of a substrate are provided.
- the polyimide precursor may be a polyimide varnish that is applied to a coating object and then imidized by heat curing.
- the polyimide precursor can realize the excellent insulation, adhesion, heat resistance, mechanical strength, light resistance, and flexibility of polyimide, and can be used as a substrate attachment material for displays.
- Exemplary polyimide precursors according to the present application include polyamic acids containing dianhydride monomers and diamine monomers as polymerized units; and N,N-diethylacetamide (DEAc), N,N-diethylformamide (DEF), N-ethylpyrrolidone (NEP) , an organic solvent containing at least one selected from the group consisting of dimethylpropionamide (DMPA) and diethylpropionamide (DEPA).
- DMPA dimethylpropionamide
- DEPA diethylpropionamide
- the weight average molecular weight of the polyamic acid may be in the range of 40,000 to 100,000 g/mol, 45,000 to 90,000 g/mol, 48,000 to 80,000 g/mol, 50,000 to 75,000 g/mol, or 51,000 to 70,000 g/mol.
- the term weight average molecular weight refers to the converted value for standard polystyrene measured by GPC (Gel permeation Chromatograph).
- the polyimide precursor according to the present invention may be a polyamic acid solution containing polyamic acid and an organic solvent.
- polyimide precursor, polyamic acid solution, and polyimide varnish are interpreted to have the same meaning.
- the polyamic acid may be prepared through a polymerization reaction of a dianhydride monomer and a diamine monomer in the presence of the organic solvent.
- the polyamic acid of the present invention is polymerized in the organic solvent, the weight average molecular weight increases and can satisfy the above-mentioned numerical range.
- the polyimide precursor according to the present application contains a high molecular weight polyamic acid that satisfies the above numerical range, it is possible to provide a polyimide with improved mechanical properties and heat resistance characteristics upon imidization.
- the organic solvent may be N,N-dimethylpropionamide (DMPA). Meanwhile, the organic solvent may not contain N-methyl-2-pyrrolidone (NMP). Polyamic acid polymerized in the presence of N-methyl-2-pyrrolidone may not satisfy the weight average molecular weight within the above-mentioned numerical range.
- DMPA N,N-dimethylpropionamide
- NMP N-methyl-2-pyrrolidone
- Polyamic acid polymerized in the presence of N-methyl-2-pyrrolidone may not satisfy the weight average molecular weight within the above-mentioned numerical range.
- the polydispersity index (PDI) of the polyamic acid may be in the range of 1 to 5.
- the polydispersity index (PDI) of the polyamic acid is 1.1 to 4.9, 1.2 to 4.5, 1.3 to 4.3, 1.4 to 4.0, 1.5 to 3.8, 1.6 to 3.4, 1.7 to 3.2, 1.8 to 3.0, 1.9 to 2.9. , may be in the range of 2 to 2.8, 2.1 to 2.7.
- the dianhydride monomer may be aromatic tetracarboxylic dianhydride.
- the dianhydride monomer includes at least one compound represented by the following formula (1).
- aliphatic ring group may refer to an aliphatic ring group having 3 to 30 carbon atoms, 4 to 25 carbon atoms, 5 to 20 carbon atoms, or 6 to 16 carbon atoms, unless otherwise specified.
- Specific examples of the tetravalent aliphatic ring group include, for example, cyclohexane ring, cycloheptane ring, cyclodecane ring, cyclododecane ring, norbornane ring, isobornane ring, adamantane ring, and cyclododecane.
- examples include groups in which four hydrogen atoms have been removed from a ring, such as a ring or a dicyclopentane ring.
- aromatic ring group may refer to an aromatic ring group having 4 to 30 carbon atoms, 5 to 25 carbon atoms, 6 to 20 carbon atoms, or 6 to 16 carbon atoms, unless otherwise specified. may be a single ring or a fused ring.
- tetravalent aromatic hydrocarbon ring group include groups obtained by removing four hydrogen atoms from a benzene ring, naphthalene ring, anthracene ring, phenanthrene ring, perylene ring, tetracene ring, or pyrene ring.
- arylene group may refer to a divalent organic group derived from the aromatic ring group.
- heterocyclic group includes a heteroaliphatic ring group and a heteroaromatic ring group.
- hetero aliphatic ring group may refer to a ring group in which at least one carbon atom of the aliphatic ring group is replaced with one or more heteroatoms selected from the group consisting of nitrogen, oxygen, sulfur, and phosphorus.
- hetero aromatic ring group refers to a ring group in which at least one carbon atom of the aromatic ring group is replaced with one or more heteroatoms selected from the group consisting of nitrogen, oxygen, sulfur, and phosphorus. It can mean.
- the heteroaromatic ring group may be a single ring or a condensed ring.
- the aliphatic ring group, the heteroaliphatic ring group, the aromatic ring group, or the heteroaromatic ring group are each independently halogen, a hydroxy group, a carboxyl group, an alkyl group of 1 to 4 carbon atoms substituted or unsubstituted by halogen, and a carbon number of 1. It may be substituted with one or more substituents selected from the group consisting of alkoxy groups of to 4.
- single bond may mean a bond connecting both atoms without any atoms.
- X in Formula 1 is , where M is a single bond, and both aromatic rings can be directly connected to each other.
- alkyl group refers to a group having 1 to 30 carbon atoms, 1 to 25 carbon atoms, 1 to 20 carbon atoms, 1 to 16 carbon atoms, 1 to 12 carbon atoms, 1 to 8 carbon atoms, or 1 to 4 carbon atoms. It may mean an alkyl group of.
- the alkyl group may have a straight-chain, branched-chain, or cyclic structure, and may be optionally substituted with one or more substituents.
- the substituent may be, for example, a polar functional group such as one or more substituents consisting of halogen, hydroxy group, alkoxy group, thiol group, or thiol ether group.
- alkenyl group refers to a group having 1 to 30 carbon atoms, 1 to 25 carbon atoms, 1 to 20 carbon atoms, 1 to 16 carbon atoms, 1 to 12 carbon atoms, 1 to 8 carbon atoms, or 1 to 1 carbon number. It may mean an alkenyl group of 4.
- the alkenyl group may have a straight-chain, branched-chain, or cyclic structure, and may be optionally substituted with one or more substituents.
- the substituent may be, for example, a polar functional group such as one or more substituents consisting of halogen, hydroxy group, alkoxy group, thiol group, or thiol ether group.
- alkynyl group refers to a group having 1 to 30 carbon atoms, 1 to 25 carbon atoms, 1 to 20 carbon atoms, 1 to 16 carbon atoms, 1 to 12 carbon atoms, 1 to 8 carbon atoms, or 1 to 8 carbon atoms, unless otherwise specified. It may mean an alkynyl group of 4.
- the alkynyl group may have a straight-chain, branched-chain, or cyclic structure, and may be optionally substituted with one or more substituents.
- the substituent may be, for example, a polar functional group such as one or more substituents consisting of halogen, hydroxy group, alkoxy group, thiol group, or thiol ether group.
- alkylene group refers to a group having 2 to 30 carbon atoms, 2 to 25 carbon atoms, 2 to 20 carbon atoms, 2 to 16 carbon atoms, 2 to 12 carbon atoms, 2 to 10 carbon atoms, or 2 to 10 carbon atoms. It may mean 2 to 8 alkylene groups.
- the alkylene group is a divalent organic group in which two hydrogens have been removed from different carbon atoms, and may have a straight-chain, branched-chain, or cyclic structure, and may be optionally substituted with one or more substituents.
- the substituent may be, for example, a polar functional group such as one or more substituents consisting of halogen, hydroxy group, alkoxy group, thiol group, or thiol ether group.
- alkylidene group refers to a group having 1 to 30 carbon atoms, 1 to 25 carbon atoms, 1 to 20 carbon atoms, 1 to 16 carbon atoms, 1 to 12 carbon atoms, 1 to 10 carbon atoms, or It may refer to an alkylidene group having 1 to 8 carbon atoms.
- the alkylidene group is a divalent organic group in which two hydrogens are removed from one carbon atom and may have a straight-chain, branched-chain, or cyclic structure, and may be optionally substituted with one or more substituents.
- the substituent may be, for example, a polar functional group such as one or more substituents consisting of halogen, hydroxy group, alkoxy group, thiol group, or thiol ether group.
- alkoxy group refers to a group having 1 to 30 carbon atoms, 1 to 25 carbon atoms, 1 to 20 carbon atoms, 1 to 16 carbon atoms, 1 to 12 carbon atoms, 1 to 8 carbon atoms, or 1 to 8 carbon atoms. It may refer to the alkoxy group of 4.
- the alkoxy group may have a straight-chain, branched-chain, or cyclic alkyl group, and the alkyl group may be optionally substituted with one or more substituents.
- the substituent may be, for example, one or more substituents consisting of halogen, hydroxy group, alkoxy group, thiol group, or thiol ether group.
- alkylamine group includes monoalkylamine (-NHR) or dialkylamine (-NR 2 ), where R each independently has 1 to 30 carbon atoms, unless otherwise specified. It may mean an alkyl group having 1 to 25 carbon atoms, 1 to 20 carbon atoms, 1 to 16 carbon atoms, 1 to 12 carbon atoms, 1 to 8 carbon atoms, or 1 to 4 carbon atoms.
- the alkyl group may have a straight-chain, branched-chain, or cyclic structure, and may be optionally substituted with one or more substituents.
- the substituent may be, for example, one or more substituents consisting of halogen, hydroxy group, alkoxy group, thiol group, or thiol ether group.
- alkylamide includes monoalkylamide (-C(O)NHR) or dialkylamide (-C(O)NR 2 ), unless otherwise specified, where R is each It may independently mean an alkyl group having 1 to 30 carbon atoms, 1 to 25 carbon atoms, 1 to 20 carbon atoms, 1 to 16 carbon atoms, 1 to 12 carbon atoms, 1 to 8 carbon atoms, or 1 to 4 carbon atoms.
- the alkyl group may have a straight-chain, branched-chain, or cyclic structure, and may be optionally substituted with one or more substituents.
- the substituent may be, for example, one or more substituents consisting of halogen, hydroxy group, alkoxy group, thiol group, or thiol ether group.
- thiol ether group or “sulfide” means -SR, unless otherwise specified, where R each independently has 1 to 30 carbon atoms, 1 to 25 carbon atoms, 1 to 20 carbon atoms, and 1 to 20 carbon atoms. It may mean an alkyl group having 1 to 16 carbon atoms, 1 to 12 carbon atoms, 1 to 8 carbon atoms, or 1 to 4 carbon atoms.
- the alkyl group may have a straight-chain, branched-chain, or cyclic structure, and may be optionally substituted with one or more substituents.
- the substituent may be, for example, one or more substituents consisting of halogen, hydroxy group, alkoxy group, thiol group, or thiol ether group.
- sulfoxide means -S(O)R, unless otherwise specified, where R each independently has 1 to 30 carbon atoms, 1 to 25 carbon atoms, 1 to 20 carbon atoms, and 1 carbon number. It may refer to an alkyl group having 1 to 16 carbon atoms, 1 to 12 carbon atoms, 1 to 8 carbon atoms, or 1 to 4 carbon atoms.
- the alkyl group may have a straight-chain, branched-chain, or cyclic structure, and may be optionally substituted with one or more substituents.
- the substituent may be, for example, one or more substituents consisting of halogen, hydroxy group, alkoxy group, thiol group, or thiol ether group.
- carbonyl includes -C(O)R, where R each independently has 1 to 30 carbon atoms, 1 to 25 carbon atoms, 1 to 20 carbon atoms, and 1 carbon atom. It may refer to an alkyl group having 1 to 16 carbon atoms, 1 to 12 carbon atoms, 1 to 8 carbon atoms, or 1 to 4 carbon atoms.
- the alkyl group may have a straight-chain, branched-chain, or cyclic structure, and may be optionally substituted with one or more substituents.
- the substituent may be, for example, one or more substituents consisting of halogen, hydroxy group, alkoxy group, thiol group, or thiol ether group.
- the term “ester”, unless specifically defined otherwise, includes -C(O)OR or -OC(O)R, where R each independently has 1 to 30 carbon atoms, 1 to 25 carbon atoms, and 1 to 25 carbon atoms. It may mean an alkyl group having 1 to 20 carbon atoms, 1 to 16 carbon atoms, 1 to 12 carbon atoms, 1 to 8 carbon atoms, or 1 to 4 carbon atoms.
- the alkyl group may have a straight-chain, branched-chain, or cyclic structure, and may be optionally substituted with one or more substituents.
- the substituent may be, for example, one or more substituents consisting of halogen, hydroxy group, alkoxy group, thiol group, or thiol ether group.
- Aliphatic tetracarboxylic dianhydride satisfying Formula 1 includes 1,2,4,5-cyclohexane tetracarboxylic dianhydride (or HPMDA), bicyclo[2.2.2]octane-2,3, 5,6-tetracarboxylic 2:3,5:6-dianhydride (BODA), 1,2,3,4-cyclohexane tetracarboxylic dianhydride (CHMDA), bicyclo[2.2.1 ]heptane-2,3,5,6-tetracarboxylic 2:3,5:6-dianhydride (BHDA), butane-l,2,3,4-tetracarboxylic dianhydride (BTD) , bicyclo-[2.2.2]oct-7-en-2-exo,3-exo,5-exo,6-exo-2,3:5,6-dianhydride (BTA), 1,2, 3,4-Tetraclobutane tetracarboxylic dianhydride (CB
- Aromatic tetracarboxylic dianhydride satisfying Formula 1 includes pyromellitic dianhydride (or PMDA), 3,3',4,4'-biphenyltetracarboxylic dianhydride (or BPDA), 2,3,3',4'-Biphenyltetracarboxylic dianhydride (or a-BPDA), oxydiphthalic dianhydride (or ODPA), diphenylsulfone-3,4,3',4' -Tetracarboxylic dianhydride (or DSDA), bis(3,4-dicarboxyphenyl)sulfide dianhydride, 2,2-bis(3,4-dicarboxyphenyl)-1,1,1,3 ,3,3-Hexafluoropropane dianhydride, 2,3,3',4'-benzophenonetetracarboxylic dianhydride, 3,3',4,4'-benzophenonetetracarboxylic Dianhydride
- the compound represented by Formula 1 is preferably aromatic tetracarboxylic dianhydride, especially 3,3',4,4'-biphenyltetracarboxylic dianhydride (or BPDA), or 2,3, It may include 3',4'-biphenyltetracarboxylic dianhydride (or a-BPDA).
- aromatic tetracarboxylic dianhydride especially 3,3',4,4'-biphenyltetracarboxylic dianhydride (or BPDA), or 2,3, It may include 3',4'-biphenyltetracarboxylic dianhydride (or a-BPDA).
- the diamine monomer may include at least one compound represented by the following formula (2).
- any one of B 1 to B 5 is an amino group, and the others are hydrogen; halogen; hydroxyl group; Carboxyl group; Or it represents an alkyl group substituted or unsubstituted with halogen.
- diamine monomers that can be used to prepare polyamic acid solutions are aromatic diamines, and examples can be classified as follows.
- 1,4-diaminobenzene or paraphenylenediamine, PPD
- 1,3-diaminobenzene 2,4-diaminotoluene
- 2,6-diaminotoluene 3,5-diaminobenzo
- a diamine having one benzene nucleus in structure such as diamine acid (or DABA), and having a relatively rigid structure;
- Diaminodiphenyl ether such as 4,4'-diaminodiphenyl ether (or oxydianiline, ODA), 3,4'-diaminodiphenyl ether, 4,4'-diaminodiphenylmethane (methylenediamine), 3,3'-dimethyl-4,4'-diaminobiphenyl, 2,2'-dimethyl-4,4'-diaminobiphenyl, 2,2'-bis (trifluoromethyl )-4,4'-diaminobiphenyl, 3,3'-dimethyl-4,4'-diaminodiphenylmethane, 3,3'-dicarboxy-4,4'-diaminodiphenylmethane , 3,3',5,5'-tetramethyl-4,4'-diaminodiphenylmethane, bis(4-aminophenyl)sulfide, 4,4'-diaminobenzanil
- the diamine monomer may be used alone or in combination of two or more types, as needed.
- 1,4-diaminobenzene (PPD) 1,3 - May include diaminobenzene (MPD), 2,4-diaminotoluene, 2,6-diaminotoluene, or 4,4'-methylenediamine (MDA), and preferably the compound represented by Formula 2 May contain 1,4-diaminobenzene (PPD).
- the polyimide precursor may include 5 to 40% by weight, 10 to 30% by weight, or 15 to 20% by weight of solid content based on the total weight.
- the present application can control the increase in viscosity and prevent the increase in manufacturing cost and process time that requires removal of a large amount of solvent during the curing process.
- the polyamic acid may be in the range of 1 to 50% by weight based on the total solid content.
- the range may be 3 to 40% by weight, 5 to 30% by weight, or 10 to 20% by weight. If it is less than 1% by weight, the consistency of the varnish coating layer deteriorates, and conversely, if it exceeds 40% by weight, storage stability becomes poor.
- the polyimide precursor of the present application may contain a high molecular weight polyamic acid and at the same time have low viscosity characteristics.
- the polyimide precursor of the present application has a viscosity measured at a temperature of 23°C and a shear rate of 1s -1 of 50,000cP or less, 40,000cP or less, 30,000cP or less, 20,000cP or less, 10,000cP or less, 9,000cP or less, 5,000cP or less. , may be 4,000 cP or less or 3,000 cP or less.
- the lower limit is not particularly limited, but may be 500 cP or more or 1000 cP or more.
- the polyimide precursor of the present application may range from 500 to 10,000 cp.
- the viscosity may be measured using Haake's MARS40 at a temperature of 23°C. By adjusting the viscosity range, the present application can provide a polyimide precursor with excellent processability and easy product application.
- This application relates to a method for producing polyamic acid.
- the above production method can provide polyamic acid with a high weight average molecular weight by polymerizing the polyamic acid in a specific solvent.
- detailed descriptions that overlap with the foregoing content will be omitted.
- the production method is N,N-diethylacetamide (DEAc), N,N-diethylformamide (DEF), N-ethylpyrrolidone (Polymerization of dianhydride monomer and diamine monomer using an organic solvent containing at least one selected from the group consisting of N-ethylpyrrolidone (NEP), dimethylpropionamide (DMPA), and diethylpropionamide (DEPA). It may include the step of asking.
- DEAc N,N-diethylacetamide
- DEF N,N-diethylformamide
- N-ethylpyrrolidone Polymerization of dianhydride monomer and diamine monomer using an organic solvent containing at least one selected from the group consisting of N-ethylpyrrolidone (NEP), dimethylpropionamide (DMPA), and diethylpropionamide (DEPA). It may include the step of asking.
- the present application also relates to a method of increasing the molecular weight of polyamic acids. Specifically, the present application relates to a method of increasing the molecular weight of a polyamic acid containing polymerized units derived from a dianhydride monomer and a diamine monomer using an organic solvent containing at least one of the above-mentioned compounds.
- the weight average molecular weight of the polyamic acid increases. Specifically, compared to the case where NMP is used as the organic solvent, the polyamic acid is environmentally friendly and the weight average molecular weight increases, and as a result, the mechanical properties and heat resistance characteristics are improved upon imidization. An improved polyimide can be provided.
- the weight average molecular weight of the polyamic acid may be in the range of 40,000 g/mol to 100,000 g/mol.
- the present application also relates to films comprising the polyimide precursors described above.
- the film may be attached to a substrate of a display device.
- the thickness of the film can be formed to be thin enough to be suitable for attachment to a product, for example, the thickness is 1 to 100 ⁇ m, 5 to 90 ⁇ m, 5 to 80 ⁇ m, 5 to 70 ⁇ m, 10 ⁇ m. to 100 ⁇ m, 10 to 90 ⁇ m, 10 to 80 ⁇ m, 10 to 70 ⁇ m, 10 to 60 ⁇ m, 10 to 50 ⁇ m, 20 to 100 ⁇ m, 20 to 90 ⁇ m, 20 to 80 ⁇ m or 20 to 70 ⁇ m, 20 to 60 ⁇ m, or 20 to 50 ⁇ m.
- the film may be capable of controlling various physical properties within the numerical range below by adjusting the material and content ratio of the polyimide precursor composition described above.
- the elongation of the film measured using a UTM (Universal Testing Machine) device is 100% or less, 95% or less, 90% or less, 85% or less, 80% or less, 75% or less, 70% or less, 65% or less. % or less, 60% or less, 55% or less, 50% or less, 45% or less, 40% or less, 35% or less, 30% or less, or 25% or less, and the tensile strength is 700Mpa or less, 650Mpa or less, 600Mpa or less, 550Mpa or less.
- It can be 500Mpa or less, 450Mpa or less, 400Mpa or less, 350Mpa or less, 300Mpa or less, 250Mpa or less, 200Mpa or less, or 150Mpa or less, and the modulus is 12Gpa or less, 11Gpa or less, 10Gpa or less, 9Gpa or less, 8Gpa or less, 7Gpa or less.
- 6Gpa or below may be 5 Gpa or less, 4 Gpa or less, or 3 Gpa or less.
- the measurement can be made with a UTM device under the conditions of a width of 20 mm, a grip distance of 50 mm, and a crosshead speed of 20 min/min.
- the film has a coefficient of thermal expansion (CTE) measured using a TMA (Thermo Mechanical Analysis) device of 0.1 ppm/°C to 50 ppm/°C, 0.5 ppm/°C to 50 ppm/°C, and 1 ppm/°C to 50 ppm. /°C, 5ppm/°C to 50 ppm/°C, 10ppm/°C to 45 ppm/°C, 15ppm/°C to 40 ppm/°C, 20ppm/°C to 40 ppm/°C, 25ppm/°C to 40 ppm/°C or 25ppm/°C It may range from °C to 35 ppm/°C.
- the measurement can be performed by applying a load of 0.02N using a TMA device in the temperature range of 50 to 200°C at a temperature increase rate of 10°C/min.
- the 1% thermal decomposition temperature (td) of the film measured using a TGA (Thermo Gravimetric analysis) device is 300 to 600 °C, 350 to 600 °C, 400 to 600 °C, 450 to 600 °C, 500 to 600 °C or It may be in the range of 540 to 600°C.
- the measurement can be performed by preheating to a temperature of 150°C and using a TGA device at a temperature increase rate of 10°C/min for 30 minutes.
- the present application also relates to a display device.
- the device may include a substrate; and the aforementioned film attached to the substrate.
- the type of the display device is not particularly limited and can be applied to various types without limitation.
- the display device may have excellent heat resistance, light resistance, and electrical properties as the above-mentioned film is attached to the substrate.
- This application discloses a polyimide precursor capable of simultaneously realizing mechanical properties under harsh conditions such as low dielectric constant, light resistance, heat resistance, insulation, and high temperature, including high molecular weight polyamic acid, a method for producing the polyamic acid, and a molecular weight of the polyamic acid.
- a method for increasing the volume, a film containing the precursor, and a display device in which the film is attached to a substrate are provided.
- DMPA N,N-dimethylpropionamide
- PPD 1,4-diaminobenzene
- BPDA 3,3',4,4'-biphenyltetracarboxylic dianhydride
- NMP N-methyl-2-pyrrolidone
- BPDA 3,3',4,4'-biphenyltetracarboxylic dianhydride
- the weight average molecular weight of the polyamic acid in each sample was measured using GPC, and the results are shown in Table 2 below.
- Example using DMPA as the solvent had a higher weight average molecular weight than the Comparative Example using NMP as the solvent.
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- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
Abstract
Description
| 점도 | |
| 실시예 | 2,100cP |
| 비교예 | 2,100cP |
| 실시예 | 비교예 | |||||||
| 샘플 1 | 샘플 2 | 샘플 3 | 샘플 4 | 샘플 5 | 샘플 6 | 샘플 7 | 샘플 8 | |
| Mw | 58,960 | 51,340 | 58,658 | 60,250 | 30,952 | 34,026 | 34,212 | 36,600 |
Claims (19)
- 디안하이드라이드 단량체 및 디아민 단량체를 중합 단위로 포함하는 폴리아믹산; 및N,N-디에틸아세트아마이드(N,N-diethylacetamide, DEAc), N,N-디에틸포름아마이드(N,N-diethylformamide, DEF), N-에틸피롤리돈(N-ethylpyrrolidone, NEP), 디메틸프로피온아마이드(Dimethylpropionamide, DMPA) 및 디에틸프로피온아마이드(Diethylpropionamide, DEPA)로 이루어진 군에서 선택되는 1종 이상 포함하는 유기 용매를 포함하고,상기 폴리아믹산의 중량평균분자량이 40,000g/mol 내지 100,000g/mol 범위 내인, 폴리이미드 전구체.
- 제 1 항에 있어서, 폴리아믹산은 다분산 지수(PDI)가 1 내지 5 범위 내인, 폴리이미드 전구체.
- 제 1 항에 있어서, 상기 유기 용매는 N,N-디메틸프로피온아마이드(DMPA)인, 폴리이미드 전구체.
- 제 1 항에 있어서, 상기 디안하이드라이드 단량체는 하기 화학식 1로 표시되는 화합물을 적어도 하나 이상 포함하는, 폴리이미드 전구체:[화학식 1]상기 화학식 1에서, X는 4가의 지방족 고리기, 4가의 헤테로 지방족 고리기, 4가의 방향족 고리기, 또는 4가의 헤테로 방향족 고리기이고, 화학식 1의 카보닐기의 탄소 원자가 상기 지방족 고리기, 헤테로 지방족 고리기, 방향족 고리기 또는 헤테로 방향족 고리기의 고리 구성 원자와 연결되며,상기 지방족 고리기, 상기 헤테로 지방족 고리기, 상기 방향족 고리기 또는 상기 헤테로 방향족 고리기는단환 고리이거나;서로 접합되어 다환고리를 형성하거나; 또는단일결합, 치환 또는 비치환된 알킬렌기, 치환 또는 비치환된 알킬리덴기, 치환 또는 비치환된 알케닐렌기, 치환 또는 비치환된 알키닐렌기, 치환 또는 비치환된 아릴렌기, -O-, -S-, -C(=O)-, -S(=O)2- 및 -Si(Ra)2-로 이루어진 군에서 선택된 2가의 치환기를 하나 이상 포함하는 연결기에 의해 연결되어 있고, 여기서 Ra는 수소 또는 알킬기이다.
- 제 4 항에 있어서, 상기 화학식 1로 표시되는 화합물은 3,3',4,4'-바이페닐테트라카르복실릭 디안하이드라이드(BPDA)을 포함하는 폴리이미드 전구체.
- 제 1 항에 있어서, 상기 화학식 2로 표시되는 화합물은 1,4-디아미노벤젠(PPD)을 포함하는, 폴리이미드 전구체.
- 제 1 항에 있어서, 고형분 총량 기준으로 폴리아믹산이 1 내지 50 중량%의 범위 내인 폴리이미드 전구체.
- 제 1 항에 있어서, 23℃ 온도 및 1s-1의 전단속도 조건으로 측정한 점도가 500 내지 10,000cp 범위 내인, 폴리이미드 전구체.
- N,N-디에틸아세트아마이드(N,N-diethylacetamide, DEAc), N,N-디에틸포름아마이드(N,N-diethylformamide, DEF), N-에틸피롤리돈(N-ethylpyrrolidone, NEP), 디메틸프로피온아마이드(Dimethylpropionamide, DMPA) 및 디에틸프로피온아마이드(Diethylpropionamide, DEPA)로 이루어진 군에서 선택되는 1종 이상을 포함하는 유기 용매를 사용하여, 디안하이드라이드 단량체 및 디아민 단량체를 중합시키는 단계를 포함하는, 폴리아믹산 제조 방법.
- N,N-디에틸아세트아마이드(N,N-diethylacetamide, DEAc), N,N-디에틸포름아마이드(N,N-diethylformamide, DEF), N-에틸피롤리돈(N-ethylpyrrolidone, NEP), 디메틸프로피온아마이드(Dimethylpropionamide, DMPA) 및 디에틸프로피온아마이드(Diethylpropionamide, DEPA)로 이루어진 군에서 선택되는 1종 이상 포함하는 유기 용매를 사용하여, 디안하이드라이드 단량체 및 디아민 단량체로부터 유도된 중합 단위를 포함하는 폴리아믹산의 분자량을 증가시키는 방법.
- 제 12 항에 있어서, 상기 폴리아믹산의 중량평균분자량은 40,000g/mol 내지 100,000g/mol 범위 내인, 폴리아믹산의 분자량을 증가시키는 방법.
- 제 1 항에 따른 폴리이미드 전구체를 포함하는 필름.
- 제 14 항에 있어서, 두께는 1 내지 100㎛ 범위 내인 필름.
- 제 14 항에 있어서, 신율은 100%이하이고, 인장 강도는 700Mpa이하이며, 모듈러스는 12Gpa이하인 필름.
- 제 14 항에 있어서, 열팽창계수(CTE)는 0.1 ppm/℃ 내지 50 ppm/℃ 범위 내인 필름.
- 제 14 항에 있어서, 1% 열분해 온도(td)는 300 내지 600℃ 범위 내인 필름.
- 기판; 및상기 기판에 부착된 제14항에 따른 필름을 포함하는 디스플레이 장치.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18/855,320 US20260015461A1 (en) | 2022-04-15 | 2023-03-29 | Polyimide precursor |
| EP23788503.3A EP4509547A4 (en) | 2022-04-15 | 2023-03-29 | POLYIMIDE PRECURSOR |
| CN202380033289.4A CN119013331A (zh) | 2022-04-15 | 2023-03-29 | 聚酰亚胺前体 |
| JP2024559283A JP7846790B2 (ja) | 2022-04-15 | 2023-03-29 | ポリイミド前駆体 |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20220046936 | 2022-04-15 | ||
| KR10-2022-0046936 | 2022-04-15 | ||
| KR10-2022-0114070 | 2022-09-08 | ||
| KR1020220114070A KR20230148076A (ko) | 2022-04-15 | 2022-09-08 | 폴리이미드 전구체 |
| KR1020230039433A KR20230148092A (ko) | 2022-04-15 | 2023-03-27 | 폴리이미드 전구체 |
| KR10-2023-0039433 | 2023-03-27 |
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| WO2023200151A1 true WO2023200151A1 (ko) | 2023-10-19 |
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| PCT/KR2023/004166 Ceased WO2023200151A1 (ko) | 2022-04-15 | 2023-03-29 | 폴리이미드 전구체 |
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| Country | Link |
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| US (1) | US20260015461A1 (ko) |
| EP (1) | EP4509547A4 (ko) |
| JP (1) | JP7846790B2 (ko) |
| CN (1) | CN119013331A (ko) |
| WO (1) | WO2023200151A1 (ko) |
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| KR20180012196A (ko) * | 2016-07-26 | 2018-02-05 | 주식회사 엘지화학 | 폴리이미드 전구체 용액 및 이의 제조방법 |
| KR20190038268A (ko) * | 2017-09-29 | 2019-04-08 | 주식회사 엘지화학 | 폴리이미드 전구체 용액 및 이를 이용하여 제조된 폴리이미드 필름 |
| KR20190059819A (ko) * | 2016-09-28 | 2019-05-31 | 다우 글로벌 테크놀로지스 엘엘씨 | 폴리(아미드산) 및 폴리이미드 폴리머의 합성용 dmpa-기반 용매계 |
| KR20220007951A (ko) * | 2020-07-13 | 2022-01-20 | 에스케이이노베이션 주식회사 | 폴리이미드 전구체, 폴리이미드 전구체 조성물, 폴리이미드 필름, 이의 제조방법 및 이의 용도 |
| KR20220031281A (ko) * | 2020-09-04 | 2022-03-11 | 에스케이이노베이션 주식회사 | 폴리이미드 전구체, 폴리이미드 전구체 조성물, 폴리이미드 필름, 이의 제조방법 및 이의 용도 |
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| KR101775204B1 (ko) * | 2014-12-04 | 2017-09-19 | 주식회사 엘지화학 | 폴리이미드계 용액 및 이를 이용하여 제조된 폴리이미드계 필름 |
| KR102054545B1 (ko) * | 2016-09-23 | 2019-12-10 | 주식회사 엘지화학 | 폴리이미드 전구체 용액 및 이를 이용한 폴리이미드 필름의 제조방법 |
| KR101796875B1 (ko) * | 2016-09-23 | 2017-11-10 | 주식회사 엘지화학 | 폴리이미드 전구체 용액 및 이의 제조방법 |
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- 2023-03-29 CN CN202380033289.4A patent/CN119013331A/zh active Pending
- 2023-03-29 JP JP2024559283A patent/JP7846790B2/ja active Active
- 2023-03-29 US US18/855,320 patent/US20260015461A1/en active Pending
- 2023-03-29 WO PCT/KR2023/004166 patent/WO2023200151A1/ko not_active Ceased
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| KR20180012196A (ko) * | 2016-07-26 | 2018-02-05 | 주식회사 엘지화학 | 폴리이미드 전구체 용액 및 이의 제조방법 |
| KR20190059819A (ko) * | 2016-09-28 | 2019-05-31 | 다우 글로벌 테크놀로지스 엘엘씨 | 폴리(아미드산) 및 폴리이미드 폴리머의 합성용 dmpa-기반 용매계 |
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| KR20220007951A (ko) * | 2020-07-13 | 2022-01-20 | 에스케이이노베이션 주식회사 | 폴리이미드 전구체, 폴리이미드 전구체 조성물, 폴리이미드 필름, 이의 제조방법 및 이의 용도 |
| KR20220031281A (ko) * | 2020-09-04 | 2022-03-11 | 에스케이이노베이션 주식회사 | 폴리이미드 전구체, 폴리이미드 전구체 조성물, 폴리이미드 필름, 이의 제조방법 및 이의 용도 |
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Also Published As
| Publication number | Publication date |
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| CN119013331A (zh) | 2024-11-22 |
| JP2025511794A (ja) | 2025-04-16 |
| US20260015461A1 (en) | 2026-01-15 |
| JP7846790B2 (ja) | 2026-04-15 |
| EP4509547A4 (en) | 2026-04-08 |
| EP4509547A1 (en) | 2025-02-19 |
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