WO2019131894A1 - ポリイミド前駆体、ポリイミド、ポリイミドフィルム、ワニス、及び基板 - Google Patents
ポリイミド前駆体、ポリイミド、ポリイミドフィルム、ワニス、及び基板 Download PDFInfo
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- WO2019131894A1 WO2019131894A1 PCT/JP2018/048191 JP2018048191W WO2019131894A1 WO 2019131894 A1 WO2019131894 A1 WO 2019131894A1 JP 2018048191 W JP2018048191 W JP 2018048191W WO 2019131894 A1 WO2019131894 A1 WO 2019131894A1
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- FJPWCEGGZNHWPI-UHFFFAOYSA-N Cc(cc1)cc(C(F)(F)F)c1-c1ccc(C)cc1C(F)(F)F Chemical compound Cc(cc1)cc(C(F)(F)F)c1-c1ccc(C)cc1C(F)(F)F FJPWCEGGZNHWPI-UHFFFAOYSA-N 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
- B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
-
- 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
-
- 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
- C08G73/12—Unsaturated 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
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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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
- C09J179/00—Adhesives based on 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 C09J161/00 - C09J177/00
- C09J179/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C09J179/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2379/00—Other polymers having nitrogen, with or without oxygen or carbon only, in the main chain
- B32B2379/08—Polyimides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/12—Photovoltaic modules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
- B32B2457/208—Touch screens
Definitions
- the present invention relates to a polyimide having high transparency, a low linear thermal expansion coefficient, and a small retardation in the thickness direction (retardation), and a precursor thereof.
- the invention also relates to a polyimide film, a varnish comprising a polyimide precursor or a polyimide, and a substrate.
- Aromatic polyimides are essentially tinted yellow in color due to intramolecular conjugation and the formation of charge transfer complexes. Therefore, as means for suppressing coloring, for example, introduction of a fluorine atom into the molecule, imparting of flexibility to the main chain, introduction of a bulky group as a side chain, etc. inhibit the formation of intramolecular conjugation and charge transfer complex. Then, a method of expressing transparency has been proposed.
- Patent Document 1 discloses, as a tetracarboxylic acid component, norbornane-2-spiro- ⁇ -cyclopentanone- ⁇ ′-spiro-2 ′ ′-norbornane-5,5 ′ ′, 6,6 ′ ′-tetra
- a carboxylic acid dianhydride (abbreviation: CpODA) is used, and as a diamine component, 2,2′-bis (trifluoromethyl) benzidine (abbreviation: TFMB) or TFMB and other aromatic diamines (eg, TFMB:
- CpODA having a specific stereoisomer ratio is used as a tetracarboxylic acid component, and TFMB and other aromatic diamines (eg, TFMB: 4, 4'-diaminobenzanilide) as a diamine component.
- TFMB and other aromatic diamines eg, TFMB: 4, 4'-diaminobenzanilide
- Patent Document 3 is a polyimide resin including a structural unit A derived from tetracarboxylic acid dianhydride and a structural unit B derived from a diamine compound, and the structural unit A is a structural unit derived from CpODA.
- the structural unit B contains at least one type of structural unit (B-1) derived from 9,9-bis (4-aminophenyl) fluorene, and the structural unit (B-1) in the structural unit B
- a polyimide resin having a ratio of 60 mol% or more is disclosed. More specifically, in Example 4 of Patent Document 3, a polyimide resin is produced from CpODA (A-1) and 9,9-bis (4-aminophenyl) fluorene (B-1).
- Example 5 of Patent Document 3 CpODA (A-1), 1,2,4,5-cyclohexanetetracarboxylic dianhydride (A-3) and 9,9-bis (4-aminophenyl) fluorene
- Example 1 of Patent Document 4 and Comparative Example 1 CpODA, 4,4′-diamino-2,2′-dimethylbiphenyl and 9,9-bis (4-aminophenyl) fluorene (molar ratio: And polyimides obtained from CpODA and 9,9-bis (4-aminophenyl) fluorene are described.
- An object of the present invention is to provide a polyimide having high transparency, a low linear thermal expansion coefficient, and small retardation in the thickness direction (retardation), and a precursor thereof.
- the present invention relates to the following items. 1. It is a polyimide precursor containing a repeating unit represented by the following general formula (1), A 1 in the following general formula (1) contains a tetravalent group represented by the following formula (A-1), and B 1 in the following general formula (1) is represented by the following formula (B-1) Containing the divalent groups represented Furthermore, A 1 and / or B 1 in the following general formula (1) contains a tetravalent or divalent group containing a structure represented by the following formula (2), or A 1 includes a tetravalent group represented by the following formula (3) and / or a tetravalent group represented by the following formula (4), A tetravalent group represented by the formula (A-1) in A 1 100 mol% of the general formula (1), a tetravalent group including a structure represented by the formula (2), a table represented by the formula (3) And the total content ratio of the tetravalent group represented by formula (4) and the tetravalent group represented by formula (4), and the
- a 1 is a tetravalent group having an aromatic ring or alicyclic structure
- B 1 is a divalent group having an aromatic ring or alicyclic structure
- R 1 and R 2 are each independently Hydrogen, an alkyl group having 1 to 6 carbon atoms, or an alkylsilyl group having 3 to 9 carbon atoms, provided that A 1 and B 1 contained in each repeating unit may be the same or different. .
- a 2 contains a tetravalent group represented by the following formula (A-1), and B 2 in the following general formula (5) is represented by the following formula (B-1) Containing the divalent groups represented Furthermore, A 2 and / or B 2 in the following general formula (5) contains a tetravalent or divalent group containing a structure represented by the following formula (2), or A 2 contains a tetravalent group represented by the following formula (3) and / or a tetravalent group represented by the following formula (4), A tetravalent group represented by the formula (A-1) in A 2 100 mol% of the general formula (5), a tetravalent group including a structure represented by the formula (2), a table represented by the formula (3) And the total content ratio of the tetravalent group represented by the formula (4) and the tetravalent group represented by the formula (4), and the formula (
- a 2 is a tetravalent group having an aromatic ring or an alicyclic structure
- B 2 is a divalent group having an aromatic ring or an alicyclic structure. However, it is included in each repeating unit. A 2 and B 2 may be the same or different.
- item 5 is formed on the glass base material, The laminated body characterized by the above-mentioned. 7.
- the present invention it is possible to provide a polyimide having high transparency, a low linear thermal expansion coefficient, and small retardation in the thickness direction (retardation), and a precursor thereof.
- the polyimide obtained from the polyimide precursor of the present invention and the polyimide of the present invention have high transparency, low linear thermal expansion coefficient, and small retardation in the thickness direction, and thus form a substrate for display applications and the like It can be suitably used to
- the polyimide obtained from the polyimide precursor of the present invention and the polyimide of the present invention can also be suitably used to form a substrate for a touch panel and a solar cell.
- the polyimide precursor of the present invention is a polyimide precursor containing the repeating unit represented by the general formula (1).
- the total content of the repeating units represented by the general formula (1) is preferably 90 mol% or more, more preferably 95 mol% or more, and particularly preferably 100 mol%, based on all the repeating units. preferable.
- a 1 in the general formula (1) is a tetravalent group having an aromatic ring or an alicyclic structure, preferably a tetravalent group having an alicyclic structure.
- B 1 in the general formula (1) is a divalent group having an aromatic ring or an alicyclic structure, and is preferably a divalent group having an aromatic ring.
- a 1 in the general formula (1) contains a tetravalent group represented by the formula (A-1), and in the general formula (1) A structure in which B 1 contains a divalent group represented by the formula (B-1), and further, A 1 and / or B 1 in the general formula (1) is represented by the formula (2) Or A 1 in the general formula (1) is represented by the tetravalent group represented by the formula (3) and / or the formula (4) Containing a tetravalent group.
- a 1 and / or B 1 includes a tetravalent or divalent group including the structure represented by the formula (2), and A 1 is a tetravalent group represented by the formula (3) And / or a tetravalent group represented by the above formula (4) may be included.
- the content thereof is represented by the general formula (1)
- the sum of the content ratio of the total of the divalent group represented by (B-1) and the divalent group including the structure represented by formula (2) is 120 mol% or more, preferably 160 It is preferable that it is mol% or more, more preferably 180 mol% or more.
- a tetravalent group represented by the formula (A-1) in A 1 of the general formula (1) a tetravalent group including a structure represented by the formula (2), represented by the formula (3)
- the ratio of the tetravalent group represented by the formula (4) is 80 mol% or less
- a divalent represented by the formula (B-1) in B 1 of the general formula (1) The ratio of the divalent group including the structure represented by Formula (2) to the total of the group and the divalent group including the structure represented by Formula (2) is 80 mol% or less. Moreover, it is preferable that the sum of these two ratios is 125 mol% or less.
- the polyimide of the present invention is a polyimide containing a repeating unit represented by the general formula (5).
- the total content of the repeating units represented by the general formula (5) is preferably 90 mol% or more, more preferably 95 mol% or more, particularly 100 mol%, based on all the repeating units.
- a 2 in the general formula (5) is a tetravalent group having an aromatic ring or an alicyclic structure, preferably a tetravalent group having an alicyclic structure.
- B 2 in the general formula (5) is a divalent group having an aromatic ring or an alicyclic structure, and is preferably a divalent group having an aromatic ring.
- a 2 in the general formula (5) contains a tetravalent group represented by the formula (A-1), and B 2 in the general formula (5) Is a bivalent group represented by the formula (B-1), and further, A 2 and / or B 2 in the general formula (5) includes a structure represented by the formula (2) A tetravalent or divalent group is contained, or A 2 in the general formula (5) is a tetravalent group represented by the formula (3) and / or 4 represented by the formula (4) Containing a group of valence.
- a 2 and / or B 2 includes a tetravalent or divalent group including the structure represented by the formula (2), and A 2 is a tetravalent group represented by the formula (3) And / or a tetravalent group represented by the above formula (4) may be included.
- the content thereof is a tetravalent group represented by the formula (A-1) in 100 mol% of A 2 of the general formula (5), a tetravalent group including a structure represented by the formula (2)
- the sum of the content ratio of the total of the divalent group represented by (B-1) and the divalent group including the structure represented by formula (2) is 120 mol% or more, preferably 160 It is preferable that it is mol% or more, more preferably 180 mol% or more.
- a tetravalent group represented by the formula (A-1) in A 2 of the general formula (5) a tetravalent group including a structure represented by the formula (2), represented by the formula (3)
- a ratio of the tetravalent group represented by the formula (4) is 80 mol% or less
- a divalent represented by the formula (B-1) in B 2 of the general formula (5) The ratio of the divalent group including the structure represented by Formula (2) to the total of the group and the divalent group including the structure represented by Formula (2) is 80 mol% or less. Moreover, it is preferable that the sum of these two ratios is 125 mol% or less.
- CpODA norbornane-2-spiro- ⁇ -cyclopentanone- ⁇ ′-spiro-2 ′ ′-norbornane-5,5 ′ ′, 6,6 ′ ′-tetracarboxylic acid dianhydride CpODA etc .: norbornane-2- Spiro- ⁇ -cyclopentanone- ⁇ ′-spiro-2 ′ ′-norbornane-5,5 ′ ′, 6,6 ′ ′-tetracarboxylic acids etc.
- tetracarboxylic acids etc are tetracarboxylic acids and tetracarboxylic acids Represents a tetracarboxylic acid derivative such as acid dianhydride, tetracarboxylic acid silyl ester, tetracarboxylic acid ester, tetracarboxylic acid chloride, etc.
- TFMB 2,2′-bis (trifluoromethyl) benzidine
- the tetracarboxylic acid component giving a tetravalent group represented by the above formula (A-1) is CpODA or the like, and
- the diamine component that provides the divalent group represented is TFMB.
- a 1 is a tetravalent group represented by the above formula (A-1)
- B 1 is a bivalent represented by the above formula (B-1)
- a 2 is a tetravalent group represented by the above formula (A-1)
- B 2 is the above formula
- the polyimide which consists of a repeating unit of the said General formula (5) which is a divalent group represented by (B-1) has high transparency, and a linear thermal expansion coefficient is also low, thickness direction retardation (retardation) It tends to be relatively large.
- a 1 in the general formula (1) is a structure derived from the tetracarboxylic acid component, A 2 of the general formula (5), and / or, derived from diamine component structure B 1 structure a is formula (1) to the general formula (5) the formula (2) or introducing a group containing a structure represented by the B 2, or, derived from the tetracarboxylic acid component a 1 in the general formula (1) is a tetravalent group and / or a tetravalent group represented by the formula (4) represented by the formula a 2 (3) of the general formula (5)
- adjacent aromatic rings may be further connected by a direct bond, an ether bond or the like, for example, a structure represented by the following formula (2 ′) It may be.
- R is a direct bond or an ether bond (-O-).
- the aromatic ring contained in the structure represented by the above formula (2) is substituted by a substituent such as an alkyl group such as a methyl group, a fluorinated alkyl group such as a trifluoromethyl group, or a halogeno group Although it is preferable, in general, it is preferable to have no substituent.
- the substitution position is not particularly limited.
- the tetracarboxylic acid component giving a tetravalent group containing the structure represented by the formula (2) is a tetracarboxylic acid containing the structure represented by the formula (2), etc.
- Tetracarboxylic acid derivatives other than tetracarboxylic acid dianhydrides such as bis (3,4-dicarboxyphenyl) fluorene dianhydride and other derivatives (tetracarboxylic acid silyl ester, tetracarboxylic acid ester, tetracarboxylic acid chloride, etc.) Etc.).
- the diamine component giving a divalent group containing the structure represented by the formula (2) is a diamine containing the structure represented by the formula (2), and, for example, 9,9-bis (4-aminophenyl) 9) 9-bis (4-amino-3-chlorophenyl) fluorene, 9,9-bis (4-amino-3-fluorophenyl) fluorene, 9,9-bis (4-amino-3-methylphenyl) 4) fluorene, 4,4 ′-(spiro [fluorene-9,9′-xanthene] -3 ′, 6′-diylbis (oxy)) dianiline and the like.
- the tetracarboxylic acid component giving a tetravalent group represented by the above formula (3) is 1,2,4,5-cyclohexanetetracarboxylic acid or the like.
- the tetracarboxylic acid component giving the tetravalent group represented by the above formula (4) is 2,3,3 ', 4'-biphenyltetracarboxylic acid or the like.
- the polyimide precursor of the present invention and the polyimide of the present invention are (A-1) CpODA etc. (A-2) Tetracarboxylic acids having a structure represented by the above formula (2), etc., 1,2,4,5-cyclohexanetetracarboxylic acids, etc., 2,3,3 ', 4'-biphenyltetracarboxylic acids
- a tetracarboxylic acid component containing any one or more of (B) A diamine component containing TFMB or a diamine component containing TFMB and a diamine containing a structure represented by the formula (2) Or
- CpODA of the tetracarboxylic acid component used here is trans-endo-endo-norbornane-2-spiro- ⁇ -cyclopentanone- ⁇ '-spiro-2 ''-norbornane. -5,5 ′ ′, 6,6 ′ ′-tetracarboxylic acids etc. (trans-endo-endo form) and / or cis-endo-endo-norbornane-2-spiro- ⁇ -cyclopentanone- ⁇ ′-spiro Those containing -2 "-norbornane-5,5", 6,6 "-tetracarboxylic acids etc.
- trans-endo-endo form may be preferred.
- the proportion of trans-endo-endo form and / or cis-endo-endo form in CpODA and the like is preferably 80% by mole or more, more preferably 90% by mole or more, still more preferably, in total. It is preferable that it is 95 mol% or more, especially preferably 99 mol% or more.
- the 1,2,4,5-cyclohexanetetracarboxylic acid etc. of the tetracarboxylic acid component used here one containing 1R, 2S, 4S, 5R-cyclohexanetetracarboxylic acid etc. among six kinds of stereoisomers It may be preferable.
- the proportion of 1R, 2S, 4S, 5R-cyclohexanetetracarboxylic acid in 1,2,4,5-cyclohexanetetracarboxylic acid etc. is preferably 50 mol% or more, more preferably 80 mol%
- the content is more preferably 90 mol% or more, particularly preferably 95 mol% or more.
- CpODA etc. may be used individually by 1 type, and can also be used in combination of multiple types.
- tetracarboxylic acids and the like having a structure represented by the above formula (2), 1,2,4,5-cyclohexanetetracarboxylic acids and the like, and 2,3,3 ', 4'-biphenyltetracarboxylic acids and the like
- one species may be used alone, or two or more species may be used in combination.
- the diamine containing the structure represented by said Formula (2) may also be used individually by 1 type, and can also be used in combination of multiple types.
- any of other aromatic or alicyclic tetracarboxylic acids Can also be used.
- 2,2-bis (3,4-dicarboxyphenyl) hexafluoropropane 4- (2,5-dioxotetrahydrofuran-3-yl) -1,2,3, 4-tetrahydronaphthalene-1,2-dicarboxylic acid, pyromellitic acid, 3,3 ', 4,4'-benzophenonetetracarboxylic acid, 3,3', 4,4'-biphenyltetracarboxylic acid, 4,4 ' -Oxydiphthalic acid, bis (3,4-dicarboxyphenyl) sulfone dianhydride, m-terphenyl-3,4,3 ', 4'-tetracarbox
- any other aromatic or alicyclic diamine can be used .
- p-phenylenediamine m-tolidine, 4,4'-oxydianiline, 1,4-bis (4-aminophenoxy) benzene, 4,4'-bis (4-aminophenoxy) biphenyl etc. Is more preferred.
- These diamine components may be used alone or in combination of two or more.
- the polyimide precursor of the present invention and the polyimide of the present invention are one or more of other repeating units other than the repeating unit represented by the general formula (1) or the repeating unit represented by the general formula (5) May be included.
- the tetracarboxylic acid component and the diamine component giving other repeating units are not particularly limited, and other known tetracarboxylic acids and known diamines can be used.
- a tetracarboxylic acid component giving another repeating unit is Those exemplified as the repeating unit represented by the general formula (1) or the tetracarboxylic acid component giving the repeating unit represented by the general formula (5) (CpODA etc., a structure represented by the above formula (2)) Containing tetracarboxylic acids, etc., 1,2,4,5-cyclohexanetetracarboxylic acids, etc., and 2,3,3 ', 4'-biphenyltetracarboxylic acids etc.).
- a diamine component giving another repeating unit are those exemplified as the repeating unit represented by the general formula (1) or the diamine component giving the repeating unit represented by the general formula (5) (TFMB, including the structure represented by the formula (2) And the like).
- R 1 and R 2 in the general formula (1) are each independently hydrogen, an alkyl group having 1 to 6 carbon atoms, preferably 1 to 3 carbon atoms (especially preferably a methyl group or It is either an ethyl group) or an alkylsilyl group having 3 to 9 carbon atoms (particularly preferably a trimethylsilyl group or a t-butyldimethylsilyl group).
- R 1 and R 2 can change the type of the functional group and the introduction rate of the functional group according to the production method described later.
- each of R 1 and R 2 is 25% or more, preferably 50% or more, more preferably 75% or more.
- it can be an alkylsilyl group.
- Polyimide precursors of the present invention independently, by chemical structure R 1 and R 2 are taken, 1) a polyamic acid (R 1 and R 2 are hydrogen), 2) at least polyamic acid ester (R 1, R 2 A part can be classified into 3) 4) polyamic acid silyl ester (R 1 , R 2 at least a part is an alkylsilyl group).
- the polyimide precursor of this invention can be easily manufactured by the following manufacturing methods for every classification
- the method for producing the polyimide precursor of the present invention is not limited to the following production method.
- the polyimide precursor of the present invention is prepared by using, in a solvent, approximately equimolar amounts of tetracarboxylic acid dianhydride as a tetracarboxylic acid component and a diamine component, preferably the molar ratio of diamine component to tetracarboxylic acid component [diamine [Molecule number of component / Mol number of tetracarboxylic acid component] is preferably 0.90 to 1.10, more preferably 0.95 to 1.05, for example, imidization at relatively low temperature of 120 ° C. or less Can be suitably obtained as a polyimide precursor solution composition by reacting while suppressing.
- the synthesis method of the polyimide precursor of the present invention is not limited, more specifically, a diamine is dissolved in an organic solvent, and tetracarboxylic acid dianhydride is gradually added to this solution while stirring.
- the polyimide precursor is obtained by stirring in the range of 0 to 120 ° C., preferably 5 to 80 ° C., for 1 to 72 hours.
- the order of addition of diamine and tetracarboxylic acid dianhydride in the above production method is preferred because the molecular weight of the polyimide precursor tends to increase.
- a carboxylic acid derivative in an amount substantially equivalent to the excess number of moles of the diamine component is added as necessary.
- the molar ratio of the components can be close to approximately equivalent.
- the carboxylic acid derivative herein does not substantially increase the viscosity of the polyimide precursor solution, that is, a tetracarboxylic acid which does not substantially participate in molecular chain extension, or a tricarboxylic acid and its anhydride which functions as a terminator.
- Polyamic acid ester Tetracarboxylic acid dianhydride is reacted with any alcohol to obtain diester dicarboxylic acid, and then reacted with a chlorinating reagent (thionyl chloride, oxalyl chloride or the like) to obtain diester dicarboxylic acid chloride.
- the polyimide precursor is obtained by stirring the diester dicarboxylic acid chloride and diamine in the range of -20 to 120 ° C., preferably -5 to 80 ° C. for 1 to 72 hours.
- the polyimide precursor can be easily obtained by dehydration condensation of diester dicarboxylic acid and diamine using a phosphorus-based condensing agent, a carbodiimide condensing agent, or the like.
- the polyimide precursor obtained by this method is stable, purification such as reprecipitation can be performed by adding a solvent such as water or alcohol.
- a chlorine-free silylating agent as the silylating agent used here, since it is not necessary to purify the silylated diamine.
- the chlorine atom-free silylating agent include N, O-bis (trimethylsilyl) trifluoroacetamide, N, O-bis (trimethylsilyl) acetamide, and hexamethyldisilazane.
- N, O-bis (trimethylsilyl) acetamide and hexamethyldisilazane are particularly preferable because they do not contain a fluorine atom and are inexpensive.
- amine catalysts such as pyridine, piperidine and triethylamine can be used in the silylation reaction of diamine in order to accelerate the reaction.
- This catalyst can be used as it is as a polymerization catalyst of a polyimide precursor.
- Polyamic acid silyl ester (direct method)
- the polyamide acid solution obtained by the method 1) and the silylating agent are mixed, and the mixture is stirred at 0 to 120 ° C., preferably 5 to 80 ° C., for 1 to 72 hours to obtain a polyimide precursor.
- a chlorine-free silylating agent as the silylating agent used here is preferable because there is no need to purify the silylated polyamic acid or the obtained polyimide.
- the chlorine atom-free silylating agent include N, O-bis (trimethylsilyl) trifluoroacetamide, N, O-bis (trimethylsilyl) acetamide, and hexamethyldisilazane.
- N, O-bis (trimethylsilyl) acetamide and hexamethyldisilazane are particularly preferable because they do not contain a fluorine atom and are inexpensive.
- the solvent used when preparing the polyimide precursor is, for example, N, N-dimethylformamide, N, N-dimethylacetamide, N-methyl-2-pyrrolidone, 1,3-dimethyl-2-imidazolidinone, dimethyl sulfoxide
- Aprotic solvents such as N, N-dimethylacetamide and N-methyl-2-pyrrolidone are preferable, but any kind of solvent may be used as long as the raw material monomer component and the polyimide precursor to be formed are dissolved.
- the structure is not particularly limited because it can be used without any problem.
- amide solvents such as N, N-dimethylformamide, N, N-dimethylacetamide, N-methylpyrrolidone, etc., ⁇ -butyrolactone, ⁇ -valerolactone, ⁇ -valerolactone, ⁇ -caprolactone, ⁇ -caprolactone, ⁇ -caprolactone Cyclic ester solvents such as methyl- ⁇ -butyrolactone, carbonate solvents such as ethylene carbonate and propylene carbonate, glycol solvents such as triethylene glycol, phenols such as m-cresol, p-cresol, 3-chlorophenol and 4-chlorophenol A system solvent, acetophenone, 1,3-dimethyl-2-imidazolidinone, sulfolane, dimethyl sulfoxide and the like are preferably employed.
- the logarithmic viscosity of the polyimide precursor is not particularly limited, but the logarithmic viscosity in an N, N-dimethylacetamide solution having a concentration of 0.5 g / dL at 30 ° C. is 0.2 dL / g or more, more preferably 0. It is preferably 8 dL / g or more, particularly preferably 0.9 dL / g or more.
- the logarithmic viscosity is 0.2 dL / g or more, the molecular weight of the polyimide precursor is high, and the mechanical strength and heat resistance of the resulting polyimide are excellent.
- the varnish of the polyimide precursor contains at least the polyimide precursor of the present invention and a solvent, and the total amount of the solvent, tetracarboxylic acid component and diamine component is tetra
- the total amount of the carboxylic acid component and the diamine component is suitably 5% by mass or more, preferably 10% by mass or more, more preferably 15% by mass or more.
- the amount is usually 60% by mass or less, preferably 50% by mass or less.
- This concentration is a concentration that approximates the solid content concentration attributable to the polyimide precursor, but if this concentration is too low, it becomes difficult to control, for example, the film thickness of the polyimide film obtained when producing the polyimide film Sometimes.
- a solvent used for the varnish of the polyimide precursor of this invention if a polyimide precursor melt
- a solvent of the varnish of a polyimide precursor the thing similar to the solvent used when preparing said polyimide precursor is mentioned,
- the solvent used when preparing a polyimide precursor is a varnish of a polyimide precursor as it is. Can be used as a solvent for In addition, if necessary, the solvent may be removed from the polyimide precursor solution prepared as described above, or a solvent may be added.
- the viscosity (rotational viscosity) of the varnish of the polyimide precursor is not particularly limited, but the rotational viscosity measured at a temperature of 25 ° C. and a shear rate of 20 sec ⁇ 1 using an E-type rotational viscometer is 0.01 to 1000 Pa ⁇ sec is preferable, and 0.1 to 100 Pa ⁇ sec is more preferable. Moreover, thixotropy can also be provided as needed. With a viscosity in the above range, when coating or film formation is performed, handling is easy, repelling is suppressed, and excellent leveling performance is obtained, so that a good film can be obtained.
- the varnish of the polyimide precursor of the present invention may, if necessary, be a chemical imidation agent (acid anhydride such as acetic anhydride, or an amine compound such as pyridine or isoquinoline), antioxidant, filler (inorganic particles such as silica, etc.) And dyes, pigments, coupling agents such as silane coupling agents, primers, flame retardants, antifoams, antifoaming agents, leveling agents, rheology control agents (fluid aids), release agents, and the like.
- a chemical imidation agent as acid anhydride such as acetic anhydride, or an amine compound such as pyridine or isoquinoline
- filler inorganic particles such as silica, etc.
- dyes, pigments, coupling agents such as silane coupling agents, primers, flame retardants, antifoams, antifoaming agents, leveling agents, rheology control agents (fluid aids), release agents, and the like.
- the polyimide of the present invention can be suitably produced by subjecting the polyimide precursor of the present invention as described above to a dehydration ring closure reaction (imidization reaction).
- the method of imidization is not particularly limited, and known thermal imidization or chemical imidization methods can be suitably applied.
- Preferred examples of the form of the obtained polyimide include films, laminates of polyimide films and other substrates, coating films, powders, beads, moldings, foams, varnishes, and the like.
- the varnish of the polyimide precursor of the present invention is cast and applied onto a substrate, and heated to 20 to 180 ° C., preferably 20 ° C. using hot air or infrared rays in vacuum, in an inert gas such as nitrogen, or in air. It is dried in a temperature range of ⁇ 150 ° C.
- a polyimide film / substrate laminate or a polyimide film can be produced by heat imidization in air using hot air or infrared rays at a temperature of about 200 to 500 ° C., more preferably about 250 to 450 ° C. .
- the substrate is not particularly limited, and for example, substrates such as ceramic (glass, silicon, alumina), metal (copper, aluminum, stainless steel), heat-resistant plastic film (polyimide film) and the like can be used.
- substrates such as ceramic (glass, silicon, alumina), metal (copper, aluminum, stainless steel), heat-resistant plastic film (polyimide film) and the like can be used.
- glass is preferable, and a polyimide film / glass substrate laminate in which a polyimide film is formed on a glass substrate is suitably used, for example, for producing a substrate for a display, etc.
- the imidization reaction of the polyimide precursor contains a dehydrating cyclization reagent such as acetic anhydride in the presence of a tertiary amine such as pyridine or triethylamine instead of the heat imidization by the heat treatment as described above. It is also possible to carry out by chemical treatment such as immersion in a solution.
- a partially imidized polyimide precursor is prepared by previously charging and stirring these dehydrating and cyclizing reagents in a varnish of a polyimide precursor and casting and drying it on a substrate. It can also be heat-treated as described above to obtain a polyimide film / substrate laminate or a polyimide film.
- the polyimide of the present invention is also prepared by reacting a tetracarboxylic acid component and a diamine component in a solvent to prepare a solution composition (varnish) containing the polyimide of the present invention, and preparing the polyimide solution composition by heating or the like. It can also be suitably produced by removing the solvent from the product.
- the polyimide solution composition of the present invention comprises, in a solvent, an equimolar amount of a tetracarboxylic acid component such as tetracarboxylic acid dianhydride and a diamine component, preferably a molar ratio of the diamine component to the tetracarboxylic acid component [the diamine component It can be suitably obtained by reacting in the ratio of the number of moles / the number of moles of the tetracarboxylic acid component preferably of from 0.90 to 1.10, more preferably of from 0.95 to 1.05.
- the diamine component is dissolved in a solvent, and a tetracarboxylic acid component such as tetracarboxylic acid dianhydride is gradually added to this solution while stirring, and if necessary, preferably from room temperature to 80 ° C.
- a tetracarboxylic acid component such as tetracarboxylic acid dianhydride
- the temperature is raised to carry out imidation reaction to obtain a polyimide solution.
- the temperature may be raised immediately to carry out the imidization reaction. It is also possible to reverse the order of addition of the diamine component and the tetracarboxylic acid component, and it is also possible to simultaneously add the diamine component and the tetracarboxylic acid component to the solvent.
- the method of imidization is not particularly limited, and known thermal imidization or chemical imidization methods can be suitably applied.
- a solution containing a tetracarboxylic acid component such as tetracarboxylic acid dianhydride and a diamine component is at a temperature of 100.degree. C. or higher, preferably 120.degree. C. or higher, more preferably 150 to 250.degree.
- the imidization reaction can be carried out by stirring for a time to react the tetracarboxylic acid component and the diamine component.
- the reaction is carried out by adding a chemical imidation agent (an acid anhydride such as acetic anhydride or an amine compound such as pyridine, isoquinoline, or triethylamine) to the reaction solution.
- a chemical imidation agent an acid anhydride such as acetic anhydride or an amine compound such as pyridine, isoquinoline, or triethylamine
- an imidization catalyst may be added to the reaction solution to carry out the reaction.
- the imidization reaction may be performed while removing water generated during the reaction.
- the carboxylic acid derivative is added in an amount substantially equivalent to the excess number of moles of the diamine component, and the tetracarboxylic acid component and the diamine component are The molar ratio can be brought close to approximately equivalent.
- the carboxylic acid derivative a tetracarboxylic acid which does not substantially increase the viscosity of the polyimide solution, that is, which does not substantially participate in molecular chain extension, or a tricarboxylic acid and its anhydride functioning as an end terminator, and a dicarboxylic acid And their anhydrides and the like.
- the solvent used when preparing the polyimide solution is, for example, N, N-dimethylformamide, N, N-dimethylacetamide, N-methyl-2-pyrrolidone, 1,3-dimethyl-2-imidazolidinone, dimethyl sulfoxide, etc.
- Aprotic solvents are preferred, and particularly N, N-dimethylacetamide and N-methyl-2-pyrrolidone are preferred, but any kind of solvent has no problem as long as the raw material monomer component and the polyimide to be produced are dissolved. Since it can be used, it is not particularly limited to its structure.
- amide solvents such as N, N-dimethylformamide, N, N-dimethylacetamide, N-methylpyrrolidone, etc., ⁇ -butyrolactone, ⁇ -valerolactone, ⁇ -valerolactone, ⁇ -caprolactone, ⁇ -caprolactone, ⁇ -caprolactone Cyclic ester solvents such as methyl- ⁇ -butyrolactone, carbonate solvents such as ethylene carbonate and propylene carbonate, glycol solvents such as triethylene glycol, phenols such as m-cresol, p-cresol, 3-chlorophenol and 4-chlorophenol A system solvent, acetophenone, 1,3-dimethyl-2-imidazolidinone, sulfolane, dimethyl sulfoxide and the like are preferably employed.
- the obtained reaction solution is used as it is or after concentration or dilution, and as required, additives to be described later are added to obtain a polyimide solution composition of the present invention. It can be used.
- a soluble polyimide can be isolated from the resulting reaction solution, and the isolated polyimide can be added to a solvent to obtain a polyimide solution composition (varnish) of the present invention.
- the isolation of the polyimide can be performed, for example, by dropping or mixing a reaction solution containing the obtained soluble polyimide in a poor solvent such as water to precipitate (reprecipitate) the polyimide.
- the polyimide solution composition (polyimide varnish) of the present invention contains at least the polyimide of the present invention and a solvent, and the polyimide is 5% by mass or more, preferably 10% by mass or more, based on the total amount of the solvent and polyimide.
- the proportion is preferably 15% by mass or more, particularly preferably 20% by mass or more. If this concentration is too low, for example, it may be difficult to control the film thickness of the polyimide film obtained when producing the polyimide film.
- the content of the polyimide is 60% by mass or less, preferably 50% by mass or less.
- a solvent of the polyimide solution composition of the present invention there is no problem if the polyimide is dissolved, and the structure is not particularly limited.
- a solvent of a polyimide solution composition the thing similar to the solvent used when preparing said polyimide solution is mentioned,
- the solvent used when preparing a polyimide solution is used as it is as a solvent of a polyimide solution composition. can do.
- the solvent may be removed from the polyimide solution composition prepared as described above, or a solvent may be added.
- the logarithmic viscosity of the polyimide is not particularly limited, but the logarithmic viscosity in an N, N-dimethylacetamide solution having a concentration of 0.5 g / dL at 30 ° C. is 0.2 dL / g or more, more preferably 0.4 dL. It is preferable that it is / g or more, particularly preferably 0.5 dL / g or more. When the logarithmic viscosity is 0.2 dL / g or more, the mechanical strength and heat resistance of the obtained polyimide are excellent.
- the viscosity (rotational viscosity) of the polyimide solution composition is not particularly limited, but the rotational viscosity measured at a temperature of 25 ° C. and a shear rate of 20 sec ⁇ 1 using an E-type rotational viscometer is 0.01 to 1000 Pa. Sec is preferable, and 0.1 to 100 Pa ⁇ sec is more preferable. Moreover, thixotropy can also be provided as needed. With a viscosity in the above range, when coating or film formation is performed, handling is easy, repelling is suppressed, and excellent leveling performance is obtained, so that a good film can be obtained.
- the polyimide solution composition of the present invention may, if necessary, be an antioxidant, filler (inorganic particles such as silica etc.), dye, pigment, coupling agent such as silane coupling agent, primer, flame retardant, defoaming agent It can contain an agent, a leveling agent, a rheology control agent (flow aid), a release agent and the like.
- filler inorganic particles such as silica etc.
- dye such as silane coupling agent
- primer flame retardant
- defoaming agent It can contain an agent, a leveling agent, a rheology control agent (flow aid), a release agent and the like.
- the polyimide of the present invention can be suitably obtained by removing the solvent from the polyimide solution composition prepared as described above.
- a polyimide film / substrate laminate can be produced by casting and applying a polyimide solution composition onto a substrate and heating the polyimide solution composition on the substrate to remove the solvent.
- the temperature of the heat treatment is not particularly limited, but is usually about 80 to 500 ° C., preferably about 100 to 500 ° C., and more preferably about 150 to 450 ° C.
- the heat treatment can be performed in vacuum, in an inert gas such as nitrogen, or in air, but in general, is preferably performed in a vacuum or an inert gas.
- a polyimide film can be manufactured by peeling the polyimide film formed on this base material from a base material.
- the substrate is not particularly limited, and for example, substrates such as ceramic (glass, silicon, alumina), metal (copper, aluminum, stainless steel), heat-resistant plastic film (polyimide film) and the like can be used.
- substrates such as ceramic (glass, silicon, alumina), metal (copper, aluminum, stainless steel), heat-resistant plastic film (polyimide film) and the like can be used.
- glass is preferable, and a polyimide film / glass substrate laminate in which a polyimide film is formed on a glass substrate is suitably used, for example, for producing a substrate for a display, etc.
- the polyimide solution composition is cast and applied onto a substrate, and the polyimide solution composition on the substrate is dried to the extent that it becomes self-supporting, and the obtained self-supporting film is peeled off from the substrate
- the polyimide film can be suitably produced by removing the solvent by heating with the end of the film fixed. Drying conditions at the time of production of the self-supporting film can be determined as appropriate, and for example, the polyimide solution composition may be dried at a temperature range of about 50 to 300 ° C. on a substrate.
- the temperature of the heat treatment of the self-supporting film is not particularly limited, but is usually 80 to 500 ° C., preferably 100 to 500 ° C., more preferably about 150 to 480 ° C.
- the heat treatment can be carried out in vacuum, in an inert gas such as nitrogen, or in air, but in general, it is desirable to carry out in vacuum or an inert gas.
- the form of the polyimide obtained from a polyimide solution composition is not limited to a film, the laminated body of a polyimide film, and another base material, A coating film, a powder, a bead, a molding, a foam etc. are also suitable. Can be mentioned.
- the polyimide of the present invention obtained in this manner is not particularly limited in linear thermal expansion coefficient between 100 and 250 ° C. when measured with a film having a thickness of 10 ⁇ m, but is preferably 40 ppm / K or less, more preferably It is preferable that it is 35 ppm / K or less, more preferably 30 ppm / K or less, and particularly preferably 25 ppm / K or less. If the linear thermal expansion coefficient is large, the difference in linear thermal expansion coefficient with a conductor such as metal may be large, and problems such as increased warpage may occur when forming a circuit board.
- the light transmittance at a wavelength of 400 nm when the polyimide of the present invention is measured with a film having a thickness of 10 ⁇ m is not particularly limited, but preferably 80% or more, more preferably 83% or more, particularly preferably 85% or more Is preferred.
- a polyimide film for a display or the like if the light transmittance is low, it is necessary to strengthen the light source, which may cause problems such as energy consumption.
- the haze of the polyimide of the present invention as measured with a film having a thickness of 10 ⁇ m is not particularly limited, but is preferably 2% or less, more preferably 1.5% or less, and particularly preferably 1% or less .
- a polyimide film is used for display applications etc., when the haze is high, light may be scattered and the image may be blurred.
- the polyimide of the present invention is not particularly limited in thickness direction retardation (Rth) when measured with a film having a thickness of 10 ⁇ m, but preferably 500 nm or less, more preferably 350 nm or less, particularly preferably 400 nm or less preferable.
- Th thickness direction retardation
- the film made of the polyimide of the present invention is preferably 1 ⁇ m to 250 ⁇ m, more preferably 1 ⁇ m to 150 ⁇ m, still more preferably 1 ⁇ m to 100 ⁇ m, particularly preferably 1 ⁇ m to 80 ⁇ m, as the thickness of the film, although it depends on the application.
- the polyimide film is used for the purpose of transmitting light, if the polyimide film is too thick, the light transmittance may be low.
- a flexible conductive substrate can be obtained by forming a conductive layer on one side or both sides of the polyimide film / substrate laminate or polyimide film obtained as described above.
- the flexible conductive substrate can be obtained, for example, by the following method. That is, as a first method, a conductive substance (metal or metal oxide is formed by sputtering, vapor deposition, printing, etc. on the surface of a polyimide film / substrate laminate without peeling the polyimide film from the substrate. Conductive layer, conductive organic material, conductive carbon, etc.) to produce a conductive laminate of conductive layer / polyimide film / substrate. Thereafter, if necessary, by peeling the conductive layer / polyimide film laminate from the base material, a transparent and flexible conductive substrate comprising the conductive layer / polyimide film laminate can be obtained.
- a conductive substance metal or metal oxide is formed by sputtering, vapor deposition, printing, etc.
- the polyimide film is peeled off from the base material of the polyimide film / substrate laminate to obtain a polyimide film, and on the surface of the polyimide film, a conductive substance (metal or metal oxide, conductive organic substance, A transparent and flexible conductive material is formed by forming a conductive layer of conductive carbon etc. in the same manner as in the first method, and comprising a conductive layer / polyimide film laminate or a conductive layer / polyimide film / conductive layer laminate Substrate can be obtained.
- a conductive substance metal or metal oxide, conductive organic substance,
- a transparent and flexible conductive material is formed by forming a conductive layer of conductive carbon etc. in the same manner as in the first method, and comprising a conductive layer / polyimide film laminate or a conductive layer / polyimide film / conductive layer laminate Substrate can be obtained.
- a gas barrier layer such as water vapor or oxygen, light adjustment by sputtering, vapor deposition, gel-sol method, etc.
- An inorganic layer such as a layer may be formed.
- a circuit is preferably formed by a method such as a photolithography method, various printing methods, or an inkjet method.
- the substrate of the present invention obtained in this manner has a circuit of a conductive layer on the surface of the polyimide film made of the polyimide of the present invention, via a gas barrier layer or an inorganic layer as required.
- This substrate is flexible, is excellent in high transparency, bendability, heat resistance, and has a low coefficient of linear thermal expansion, so that fine circuits can be easily formed. Therefore, this substrate can be suitably used as a substrate for displays, touch panels, or solar cells.
- a transistor inorganic transistor, organic transistor
- a liquid crystal element for display device EL element, photoelectric It is suitably used as an element.
- the substrate may be peeled off.
- Linear thermal expansion coefficient A polyimide film with a film thickness of 10 ⁇ m is cut into a strip of 4 mm in width and used as a test piece, and a distance between chucks of 15 mm, tensile load 2 g, temperature rise rate 20 ° C. The temperature was raised to 500 ° C. in one minute. The linear thermal expansion coefficient from 100 ° C. to 250 ° C. was determined from the obtained TMA curve.
- Table 1 describes the structural formulas of the tetracarboxylic acid component and the diamine component used in Examples and Comparative Examples.
- Example 1 1.70 g (5.3 millimoles) of TFMB and 7.40 g (21.3 millimoles) of BAFL are placed in a reaction vessel purged with nitrogen gas, and DMAc is added to the total mass of monomers (total of diamine component and carboxylic acid component) Was added at an amount of 25% by mass, and the mixture was stirred at room temperature for 1 hour. To this solution was slowly added 10.20 g (26.5 mmol) of CpODA. The mixture was stirred at 70 ° C. for 3 hours and at 160 ° C. for 7 hours to obtain a homogeneous viscous polyimide solution. The imidation ratio of the obtained polyimide solution was 95% or more.
- the polyimide solution was applied to a glass substrate, and the solvent was removed by heating from room temperature to 410 ° C. on a glass substrate as it is under a nitrogen atmosphere (oxygen concentration of 200 ppm or less) to obtain a colorless and transparent polyimide film / glass laminate.
- the obtained polyimide film / glass laminate was immersed in water, peeled, and dried to obtain a polyimide film having a thickness of 10 ⁇ m.
- Example 2 In a reaction vessel purged with nitrogen gas, 3.00 g (9.4 mmol) of TFMB and 6.06 g (17.4 mmol) of BAFL are placed, and DMAc is added to the total mass of monomers (total of diamine component and carboxylic acid component) Was added at an amount of 17% by mass, and the mixture was stirred at room temperature for 1 hour. To this solution was slowly added 10.29 g (26.8 mmol) of CpODA. The mixture was stirred at 70 ° C. for 3 hours and at 160 ° C. for 7 hours to obtain a homogeneous viscous polyimide solution. The imidation ratio of the obtained polyimide solution was 95% or more.
- the polyimide solution was applied to a glass substrate, and the solvent was removed by heating from room temperature to 410 ° C. on a glass substrate as it is under a nitrogen atmosphere (oxygen concentration of 200 ppm or less) to obtain a colorless and transparent polyimide film / glass laminate.
- the obtained polyimide film / glass laminate was immersed in water, peeled, and dried to obtain a polyimide film having a thickness of 10 ⁇ m.
- Example 3 In a reaction vessel purged with nitrogen gas, 7.00 g (21.9 mmol) of TFMB and 7.62 g (21.9 mmol) of BAFL are placed, and DMAc is added to the total mass of monomers (total of diamine component and carboxylic acid component) Was added at an amount of 25% by mass, and the mixture was stirred at room temperature for 1 hour. To this solution was slowly added 16.80 g (43.7 mmol) of CpODA. The mixture was stirred at 70 ° C. for 3 hours and at 160 ° C. for 7 hours to obtain a homogeneous viscous polyimide solution. The imidation ratio of the obtained polyimide solution was 95% or more.
- the polyimide solution was applied to a glass substrate, and the solvent was removed by heating from room temperature to 410 ° C. on a glass substrate as it is under a nitrogen atmosphere (oxygen concentration of 200 ppm or less) to obtain a colorless and transparent polyimide film / glass laminate.
- the obtained polyimide film / glass laminate was immersed in water, peeled, and dried to obtain a polyimide film having a thickness of 10 ⁇ m.
- the polyimide solution was applied to a glass substrate, and the solvent was removed by heating from room temperature to 450 ° C. on a glass substrate as it is under a nitrogen atmosphere (oxygen concentration of 200 ppm or less) to obtain a colorless transparent polyimide film / glass laminate.
- the obtained polyimide film / glass laminate was immersed in water, peeled, and dried to obtain a polyimide film having a thickness of 10 ⁇ m.
- Example 5 In a reaction vessel purged with nitrogen gas, 9.00 g (28.1 mmol) of TFMB and 6.53 g (18.7 mmol) of BAFL are placed, and DMAc is added to the total mass of monomers (total of diamine component and carboxylic acid component) Was added at an amount of 23% by mass, and the mixture was stirred at room temperature for 1 hour. To this solution was slowly added 18.00 g (46.8 mmol) of CpODA. The mixture was stirred at 70 ° C. for 3 hours and at 160 ° C. for 7 hours to obtain a homogeneous viscous polyimide solution. The imidation ratio of the obtained polyimide solution was 95% or more.
- the polyimide solution was applied to a glass substrate, and the solvent was removed by heating from room temperature to 430 ° C. on a glass substrate as it is under a nitrogen atmosphere (oxygen concentration of 200 ppm or less) to obtain a colorless transparent polyimide film / glass laminate.
- the obtained polyimide film / glass laminate was immersed in water, peeled, and dried to obtain a polyimide film having a thickness of 10 ⁇ m.
- Example 6 In a reaction vessel purged with nitrogen gas, 9.00 g (28.1 mmol) of TFMB and 4.20 g (12.0 mmol) of BAFL are charged, and DMAc is added to the total mass of monomers (total of diamine component and carboxylic acid component) Was added at an amount of 23% by mass, and the mixture was stirred at room temperature for 1 hour. To this solution was slowly added 15.43 g (40.2 mmol) of CpODA. The mixture was stirred at 70 ° C. for 3 hours and at 160 ° C. for 7 hours to obtain a homogeneous viscous polyimide solution. The imidation ratio of the obtained polyimide solution was 95% or more.
- the polyimide solution was applied to a glass substrate, and the solvent was removed by heating from room temperature to 410 ° C. on a glass substrate as it is under a nitrogen atmosphere (oxygen concentration of 200 ppm or less) to obtain a colorless and transparent polyimide film / glass laminate.
- the obtained polyimide film / glass laminate was immersed in water, peeled, and dried to obtain a polyimide film having a thickness of 10 ⁇ m.
- Example 7 Into a reaction vessel purged with nitrogen gas, 10.00 g (31.2 mmol) of TFMB and 2.72 g (7.8 mmol) of BAFL are charged, and DMAc is added to the total mass of monomers (total of diamine component and carboxylic acid component) Was added at an amount of 23% by mass, and the mixture was stirred at room temperature for 1 hour. To this solution was gradually added 15.00 g (39.0 mmol) of CpODA. The mixture was stirred at 70 ° C. for 3 hours and at 160 ° C. for 7 hours to obtain a homogeneous viscous polyimide solution. The imidation ratio of the obtained polyimide solution was 95% or more.
- the polyimide solution was applied to a glass substrate, and the solvent was removed by heating from room temperature to 410 ° C. on a glass substrate as it is under a nitrogen atmosphere (oxygen concentration of 200 ppm or less) to obtain a colorless and transparent polyimide film / glass laminate.
- the obtained polyimide film / glass laminate was immersed in water, peeled, and dried to obtain a polyimide film having a thickness of 10 ⁇ m.
- Example 8 In a reaction vessel purged with nitrogen gas, 8.00 g (25.0 mmol) of TFMB, 2.90 g (8.3 mmol) of BAFL, and 1.67 g (8.3 mol) of 4,4'-ODA are introduced. Then, 95.66 g of a total amount of charged monomers (total of diamine component and carboxylic acid component) was 23% by mass was added, and the mixture was stirred at room temperature for 1 hour. To this solution was gradually added 16.00 g (41.6 mmol) of CpODA. The mixture was stirred at 70 ° C. for 3 hours and at 160 ° C. for 7 hours to obtain a homogeneous viscous polyimide solution. The imidation ratio of the obtained polyimide solution was 95% or more.
- the polyimide solution was applied to a glass substrate, and the solvent was removed by heating from room temperature to 410 ° C. on a glass substrate as it is under a nitrogen atmosphere (oxygen concentration of 200 ppm or less) to obtain a colorless and transparent polyimide film / glass laminate.
- the obtained polyimide film / glass laminate was immersed in water, peeled, and dried to obtain a polyimide film having a thickness of 10 ⁇ m.
- Example 9 In a reaction vessel purged with nitrogen gas, 8.00 g (25.0 mmol) of TFMB, 4.35 g (12.5 mmol) of BAFL and 1.53 g (4.2 mol) of BAPB were placed, and DMAc was added to the total amount of monomers. 100.07 g of mass (total amount of diamine component and carboxylic acid component) was 23% by mass was added, and the mixture was stirred at room temperature for 1 hour. To this solution was gradually added 16.00 g (41.6 mmol) of CpODA. The mixture was stirred at 70 ° C. for 3 hours and at 160 ° C. for 7 hours to obtain a homogeneous viscous polyimide solution. The imidation ratio of the obtained polyimide solution was 95% or more.
- the polyimide solution was applied to a glass substrate, and the solvent was removed by heating from room temperature to 410 ° C. on a glass substrate as it is under a nitrogen atmosphere (oxygen concentration of 200 ppm or less) to obtain a colorless and transparent polyimide film / glass laminate.
- the obtained polyimide film / glass laminate was immersed in water, peeled, and dried to obtain a polyimide film having a thickness of 10 ⁇ m.
- the polyimide solution was applied to a glass substrate, and the solvent was removed by heating from room temperature to 410 ° C. on a glass substrate as it is under a nitrogen atmosphere (oxygen concentration of 200 ppm or less) to obtain a colorless and transparent polyimide film / glass laminate.
- the obtained polyimide film / glass laminate was immersed in water, peeled, and dried to obtain a polyimide film having a thickness of 10 ⁇ m.
- the polyimide solution was applied to a glass substrate, and the solvent was removed by heating from room temperature to 410 ° C. on a glass substrate as it is under a nitrogen atmosphere (oxygen concentration of 200 ppm or less) to obtain a colorless and transparent polyimide film / glass laminate.
- the obtained polyimide film / glass laminate was immersed in water, peeled, and dried to obtain a polyimide film having a thickness of 10 ⁇ m.
- the polyimide solution was applied to a glass substrate, and the solvent was removed by heating from room temperature to 410 ° C. on a glass substrate as it is under a nitrogen atmosphere (oxygen concentration of 200 ppm or less) to obtain a colorless and transparent polyimide film / glass laminate.
- the obtained polyimide film / glass laminate was immersed in water, peeled, and dried to obtain a polyimide film having a thickness of 10 ⁇ m.
- the polyimide solution was applied to a glass substrate, and the solvent was removed by heating from room temperature to 410 ° C. on a glass substrate as it is under a nitrogen atmosphere (oxygen concentration of 200 ppm or less) to obtain a colorless transparent polyimide film / glass laminate.
- the obtained polyimide film / glass laminate was immersed in water, peeled, and dried to obtain a polyimide film having a thickness of 10 ⁇ m.
- the polyimide solution was applied to a glass substrate, and the solvent was removed by heating from room temperature to 410 ° C. on a glass substrate as it is under a nitrogen atmosphere (oxygen concentration of 200 ppm or less) to obtain a colorless transparent polyimide film / glass laminate.
- the obtained polyimide film / glass laminate was immersed in water, peeled, and dried to obtain a polyimide film having a thickness of 10 ⁇ m.
- the polyimide solution was applied to a glass substrate, and the solvent was removed by heating from room temperature to 410 ° C. on a glass substrate as it is under a nitrogen atmosphere (oxygen concentration of 200 ppm or less) to obtain a colorless and transparent polyimide film / glass laminate.
- the obtained polyimide film / glass laminate was immersed in water, peeled, and dried to obtain a polyimide film having a thickness of 10 ⁇ m.
- the polyimide solution was applied to a glass substrate, and the solvent was removed by heating from room temperature to 370 ° C. on a glass substrate as it is under a nitrogen atmosphere (oxygen concentration of 200 ppm or less) to obtain a colorless transparent polyimide film / glass laminate.
- the obtained polyimide film / glass laminate was immersed in water, peeled, and dried to obtain a polyimide film having a thickness of 10 ⁇ m.
- the polyimide solution was applied to a glass substrate, and the solvent was removed by heating from room temperature to 410 ° C. on a glass substrate as it is under a nitrogen atmosphere (oxygen concentration of 200 ppm or less) to obtain a colorless transparent polyimide film / glass laminate.
- the obtained polyimide film / glass laminate was immersed in water, peeled, and dried to obtain a polyimide film having a thickness of 10 ⁇ m.
- the polyimide solution was applied to a glass substrate, and the solvent was removed by heating from room temperature to 410 ° C. on a glass substrate as it is under a nitrogen atmosphere (oxygen concentration of 200 ppm or less) to obtain a colorless transparent polyimide film / glass laminate.
- the obtained polyimide film / glass laminate was immersed in water, peeled, and dried to obtain a polyimide film having a thickness of 10 ⁇ m.
- the present invention it is possible to provide a polyimide having high transparency, a low linear thermal expansion coefficient, and small retardation in the thickness direction (retardation), and a precursor thereof.
- the polyimide obtained from the polyimide precursor of the present invention and the polyimide of the present invention have high transparency, a low linear thermal expansion coefficient, and easy formation of a fine circuit, and also retardation in the thickness direction (retardation) Because of their small size, they can be suitably used to form substrates, particularly for display applications.
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Abstract
Description
1. 下記一般式(1)で表される繰り返し単位を含むポリイミド前駆体であって、
下記一般式(1)のA1が、下記式(A-1)で表される4価の基を含み、且つ、下記一般式(1)のB1が、下記式(B-1)で表される2価の基を含み、
さらに、下記一般式(1)のA1および/またはB1が、下記式(2)で表される構造を含む4価または2価の基を含むか、または、下記一般式(1)のA1が、下記式(3)で表される4価の基および/または下記式(4)で表される4価の基を含み、
一般式(1)のA1100モル%中の式(A-1)で表される4価の基、式(2)で表される構造を含む4価の基、式(3)で表される4価の基、および、式(4)で表される4価の基の合計の含有比率と、一般式(1)のB1100モル%中の式(B-1)で表される2価の基、および、式(2)で表される構造を含む2価の基の合計の含有比率の和が、120モル%以上であり、
ただし、式(A-1)で表される4価の基、式(2)で表される構造を含む4価の基、式(3)で表される4価の基、および、式(4)で表される4価の基の合計に対する、式(2)で表される構造を含む4価の基、式(3)で表される4価の基、および、式(4)で表される4価の基の比率が、80モル%以下であり、且つ、
式(B-1)で表される2価の基、および、式(2)で表される構造を含む2価の基の合計に対する、式(2)で表される構造を含む2価の基の比率が、80モル%以下であることを特徴とするポリイミド前駆体。
下記一般式(5)のA2が、下記式(A-1)で表される4価の基を含み、且つ、下記一般式(5)のB2が、下記式(B-1)で表される2価の基を含み、
さらに、下記一般式(5)のA2および/またはB2が、下記式(2)で表される構造を含む4価または2価の基を含むか、または、下記一般式(5)のA2が、下記式(3)で表される4価の基および/または下記式(4)で表される4価の基を含み、
一般式(5)のA2100モル%中の式(A-1)で表される4価の基、式(2)で表される構造を含む4価の基、式(3)で表される4価の基、および、式(4)で表される4価の基の合計の含有比率と、一般式(5)のB2100モル%中の式(B-1)で表される2価の基、および、式(2)で表される構造を含む2価の基の合計の含有比率の和が、120モル%以上であり、
ただし、式(A-1)で表される4価の基、式(2)で表される構造を含む4価の基、式(3)で表される4価の基、および、式(4)で表される4価の基の合計に対する、式(2)で表される構造を含む4価の基、式(3)で表される4価の基、および、式(4)で表される4価の基の比率が、80モル%以下であり、且つ、
式(B-1)で表される2価の基、および、式(2)で表される構造を含む2価の基の合計に対する、式(2)で表される構造を含む2価の基の比率が、80モル%以下であることを特徴とするポリイミド。
4. 前記項1に記載のポリイミド前駆体、または前記項2に記載のポリイミドを含むワニス。
5. 前記項1に記載のポリイミド前駆体、または前記項2に記載のポリイミドを含むワニスを用いて得られたポリイミドフィルム。
6. 前記項2または3に記載のポリイミドを含むフィルム、または前記項5に記載のポリイミドフィルムがガラス基材上に形成されていることを特徴とする積層体。
7. 前記項2または3に記載のポリイミド、または前記項5に記載のポリイミドフィルムを含むことを特徴とするディスプレイ用、タッチパネル用、または太陽電池用の基板。
CpODA等:ノルボルナン-2-スピロ-α-シクロペンタノン-α’-スピロ-2’’-ノルボルナン-5,5’’,6,6’’-テトラカルボン酸類等(テトラカルボン酸類等とは、テトラカルボン酸と、テトラカルボン酸二無水物、テトラカルボン酸シリルエステル、テトラカルボン酸エステル、テトラカルボン酸クロライド等のテトラカルボン酸誘導体を表す)
TFMB:2,2’-ビス(トリフルオロメチル)ベンジジン
前記式(A-1)で表される4価の基を与えるテトラカルボン酸成分は、CpODA等であり、前記式(B-1)で表される2価の基を与えるジアミン成分は、TFMBである。CpODA等とTFMBとから得られるポリイミド、すなわち、A1が前記式(A-1)で表される4価の基であり、B1が前記式(B-1)で表される2価の基である前記一般式(1)の繰り返し単位からなるポリイミド前駆体から得られるポリイミド、及び、A2が前記式(A-1)で表される4価の基であり、B2が前記式(B-1)で表される2価の基である前記一般式(5)の繰り返し単位からなるポリイミドは、透明性が高く、線熱膨張係数も低いが、厚み方向位相差(レタデーション)が比較的大きい傾向がある。ポリイミドフィルムをディスプレイ用途などに用いる場合、上記のように、厚み方向位相差が大きいと、透過光の色が正しく表示されない、色がにじむ、視野角が狭くなるといった問題が起こることがある。これに対して、上記の含有量(比率)で、テトラカルボン酸成分に由来する構造である一般式(1)のA1、一般式(5)のA2、および/または、ジアミン成分に由来する構造である一般式(1)のB1、一般式(5)のB2に前記式(2)で表される構造を含む基を導入するか、または、テトラカルボン酸成分に由来する構造である一般式(1)のA1、一般式(5)のA2に前記式(3)で表される4価の基および/または前記式(4)で表される4価の基を導入することで、高い透明性と、低い線熱膨張係数を維持しながら、厚み方向位相差(レタデーション)を低下させることができる。その結果として、高い透明性と、低い線熱膨張係数を有し、厚み方向位相差(レタデーション)も小さいポリイミドを得ることができる。
(a-1)CpODA等と、
(a-2)前記式(2)で表される構造を含むテトラカルボン酸類等、1,2,4,5-シクロヘキサンテトラカルボン酸類等、2,3,3’,4’-ビフェニルテトラカルボン酸類等のいずれか1種以上と
を含むテトラカルボン酸成分と、
(b)TFMBを含むジアミン成分、または、TFMBと、前記式(2)で表される構造を含むジアミンとを含むジアミン成分と
から得られるか、
あるいは、
(a)CpODA等を含むテトラカルボン酸成分と、
(b)TFMBと、前記式(2)で表される構造を含むジアミンとを含むジアミン成分と
から得られる。
本発明のポリイミド前駆体は、溶媒中でテトラカルボン酸成分としてのテトラカルボン酸二無水物とジアミン成分とを略等モル、好ましくはテトラカルボン酸成分に対するジアミン成分のモル比[ジアミン成分のモル数/テトラカルボン酸成分のモル数]が好ましくは0.90~1.10、より好ましくは0.95~1.05の割合で、例えば120℃以下の比較的低温度でイミド化を抑制しながら反応することによって、ポリイミド前駆体溶液組成物として好適に得ることができる。
テトラカルボン酸二無水物を任意のアルコールと反応させ、ジエステルジカルボン酸を得た後、塩素化試薬(チオニルクロライド、オキサリルクロライドなど)と反応させ、ジエステルジカルボン酸クロライドを得る。このジエステルジカルボン酸クロライドとジアミンを-20~120℃、好ましくは-5~80℃の範囲で1~72時間攪拌することで、ポリイミド前駆体が得られる。また、ジエステルジカルボン酸とジアミンを、リン系縮合剤や、カルボジイミド縮合剤などを用いて脱水縮合することでも、簡便にポリイミド前駆体が得られる。
あらかじめ、ジアミンとシリル化剤を反応させ、シリル化されたジアミンを得る。必要に応じて、蒸留等により、シリル化されたジアミンの精製を行う。そして、脱水された溶剤中にシリル化されたジアミンを溶解させておき、攪拌しながら、テトラカルボン酸二無水物を徐々に添加し、0~120℃、好ましくは5~80℃の範囲で1~72時間攪拌することで、ポリイミド前駆体が得られる。
1)の方法で得られたポリアミド酸溶液とシリル化剤を混合し、0~120℃、好ましくは5~80℃の範囲で1~72時間攪拌することで、ポリイミド前駆体が得られる。
[400nm光透過率]
紫外可視分光光度計/V-650DS(日本分光製)を用いて、膜厚10μm、5cm角サイズのポリイミドフィルムの波長400nmにおける光透過率を測定した。
濁度計/NDH2000(日本電色工業製)を用いて、JIS K7136の規格に準拠して、膜厚10μm、5cm角サイズのポリイミドフィルムのヘイズを測定した。
膜厚10μmのポリイミドフィルムを幅4mmの短冊状に切り取って試験片とし、TMA/SS6100(エスアイアイ・ナノテクノロジー株式会社製)を用い、チャック間距離15mm、引張荷重2g、昇温速度20℃/分で500℃まで昇温した。得られたTMA曲線から、100℃から250℃までの線熱膨張係数を求めた。
膜厚10μm、5cm角サイズのポリイミドフィルムを試験片とし、王子計測器社製 位相差測定装置(KOBRA-WR)を用い、入射角を40°としてフィルムの位相差測定を行った。得られた位相差より、膜厚10μmのフィルムの厚み方向の位相差を求めた。
ポリイミドフィルムをIEC-540(S)規格のダンベル形状に打ち抜いて試験片(幅:4mm)とし、ORIENTEC社製TENSILONを用いて、チャック間長30mm、引張速度2mm/分で、初期の引張弾性率、破断点伸度、破断点応力を測定した。
TFMB: 2,2’-ビス(トリフルオロメチル)ベンジジン〔純度:99.83%(GC分析)〕
BAFL: 9,9-ビス(4-アミノフェニル)フルオレン
4,4’-ODA: 4,4’-オキシジアニリン〔純度:99.9%(GC分析)〕
BAPB: 4,4’-ビス(4-アミノフェノキシ)ビフェニル
SFXO: 4,4’-(スピロ[フルオレン-9,9’-キサンテン]-3’,6’-ジイルビス(オキシ))ジアニリン
[テトラカルボン酸成分]
CpODA:ノルボルナン-2-スピロ-α-シクロペンタノン-α’-スピロ-2’’-ノルボルナン-5,5’’,6,6’’-テトラカルボン酸二無水物
PMDA-H: 1,2,4,5-シクロヘキサンテトラカルボン酸二無水物〔純度:99.9%(GC分析)〕
a-BPDA: 2,3,3’,4’-ビフェニルテトラカルボン酸二無水物
GBL: γ―ブチロラクトン
DMAc: N,N-ジメチルアセトアミド
窒素ガスで置換した反応容器中にTFMB 1.70g(5.3ミリモル)とBAFL 7.40g(21.3ミリモル)を入れ、DMAcを、仕込みモノマー総質量(ジアミン成分とカルボン酸成分の総和)が 25質量%となる量の94.24gを加え、室温で1時間攪拌した。この溶液にCpODA 10.20g(26.5ミリモル)を徐々に加えた。70℃で3時間、160℃で7時間撹拌し、均一で粘稠なポリイミド溶液を得た。得られたポリイミド溶液のイミド化率は95%以上であった。
窒素ガスで置換した反応容器中にTFMB 3.00g(9.4ミリモル)とBAFL 6.06g(17.4ミリモル)を入れ、DMAcを、仕込みモノマー総質量(ジアミン成分とカルボン酸成分の総和)が 17質量%となる量の94.48gを加え、室温で1時間攪拌した。この溶液にCpODA 10.29g(26.8ミリモル)を徐々に加えた。70℃で3時間、160℃で7時間撹拌し、均一で粘稠なポリイミド溶液を得た。得られたポリイミド溶液のイミド化率は95%以上であった。
窒素ガスで置換した反応容器中にTFMB 7.00g(21.9ミリモル)とBAFL 7.62g(21.9ミリモル)を入れ、DMAcを、仕込みモノマー総質量(ジアミン成分とカルボン酸成分の総和)が 25質量%となる量の94.26gを加え、室温で1時間攪拌した。この溶液にCpODA 16.80g(43.7ミリモル)を徐々に加えた。70℃で3時間、160℃で7時間撹拌し、均一で粘稠なポリイミド溶液を得た。得られたポリイミド溶液のイミド化率は95%以上であった。
窒素ガスで置換した反応容器中にTFMB 7.00g(21.9ミリモル)とBAFL 6.23g(17.9ミリモル)を入れ、DMAcとGBLの混合溶媒(DMAc:GBL=1:2(重量比))を、仕込みモノマー総質量(ジアミン成分とカルボン酸成分の総和)が 23質量%となる量の95.44g(DMAcが31.81gとGBLが63.63g)を加え、室温で1時間攪拌した。この溶液にCpODA 15.28g(39.7ミリモル)を徐々に加えた。70℃で3時間、160℃で7時間撹拌し、均一で粘稠なポリイミド溶液を得た。得られたポリイミド溶液のイミド化率は95%以上であった。
窒素ガスで置換した反応容器中にTFMB 9.00g(28.1ミリモル)とBAFL 6.53g(18.7ミリモル)を入れ、DMAcを、仕込みモノマー総質量(ジアミン成分とカルボン酸成分の総和)が 23質量%となる量の112.26gを加え、室温で1時間攪拌した。この溶液にCpODA 18.00g(46.8ミリモル)を徐々に加えた。70℃で3時間、160℃で7時間撹拌し、均一で粘稠なポリイミド溶液を得た。得られたポリイミド溶液のイミド化率は95%以上であった。
窒素ガスで置換した反応容器中にTFMB 9.00g(28.1ミリモル)とBAFL 4.20g(12.0ミリモル)を入れ、DMAcを、仕込みモノマー総質量(ジアミン成分とカルボン酸成分の総和)が 23質量%となる量の95.85gを加え、室温で1時間攪拌した。この溶液にCpODA 15.43g(40.2ミリモル)を徐々に加えた。70℃で3時間、160℃で7時間撹拌し、均一で粘稠なポリイミド溶液を得た。得られたポリイミド溶液のイミド化率は95%以上であった。
窒素ガスで置換した反応容器中にTFMB 10.00g(31.2ミリモル)とBAFL 2.72g(7.8ミリモル)を入れ、DMAcを、仕込みモノマー総質量(ジアミン成分とカルボン酸成分の総和)が 23質量%となる量の92.82gを加え、室温で1時間攪拌した。この溶液にCpODA 15.00g(39.0ミリモル)を徐々に加えた。70℃で3時間、160℃で7時間撹拌し、均一で粘稠なポリイミド溶液を得た。得られたポリイミド溶液のイミド化率は95%以上であった。
窒素ガスで置換した反応容器中にTFMB 8.00g(25.0ミリモル)とBAFL 2.90g(8.3ミリモル)と4,4’-ODA 1.67g(8.3モリモル)を入れ、DMAcを、仕込みモノマー総質量(ジアミン成分とカルボン酸成分の総和)が 23質量%となる量の95.66gを加え、室温で1時間攪拌した。この溶液にCpODA 16.00g(41.6ミリモル)を徐々に加えた。70℃で3時間、160℃で7時間撹拌し、均一で粘稠なポリイミド溶液を得た。得られたポリイミド溶液のイミド化率は95%以上であった。
窒素ガスで置換した反応容器中にTFMB 8.00g(25.0ミリモル)とBAFL 4.35g(12.5ミリモル)とBAPB 1.53g(4.2モリモル)を入れ、DMAcを、仕込みモノマー総質量(ジアミン成分とカルボン酸成分の総和)が 23質量%となる量の100.07gを加え、室温で1時間攪拌した。この溶液にCpODA 16.00g(41.6ミリモル)を徐々に加えた。70℃で3時間、160℃で7時間撹拌し、均一で粘稠なポリイミド溶液を得た。得られたポリイミド溶液のイミド化率は95%以上であった。
窒素ガスで置換した反応容器中にTFMB 6.00g(18.7ミリモル)とSFXO 8.38g(15.3ミリモル)を入れ、DMAcとGBLの混合溶媒(DMAc:GBL=1:2(重量比))を、仕込みモノマー総質量(ジアミン成分とカルボン酸成分の総和)が 25質量%となる量の82.44g(DMAcが27.48gとGBLが54.96g)を加え、室温で1時間攪拌した。この溶液にCpODA 13.09g(34.1ミリモル)を徐々に加えた。70℃で3時間、160℃で7時間撹拌し、均一で粘稠なポリイミド溶液を得た。得られたポリイミド溶液のイミド化率は95%以上であった。
窒素ガスで置換した反応容器中にTFMB 11.00g(34.4ミリモル)とBAFL 5.13g(14.7ミリモル)を入れ、DMAcとGBLの混合溶媒(DMAc:GBL=1:2(重量比))を、仕込みモノマー総質量(ジアミン成分とカルボン酸成分の総和)が 25質量%となる量の87.29g(DMAcが29.10gとGBLが58.19g)を加え、室温で1時間攪拌した。この溶液にCpODA 4.72g(12.3ミリモル)とPMDA-H 8.25g(36.8ミリモル)を徐々に加えた。70℃で3時間、160℃で7時間撹拌し、均一で粘稠なポリイミド溶液を得た。得られたポリイミド溶液のイミド化率は95%以上であった。
窒素ガスで置換した反応容器中にTFMB 10.00g(31.2ミリモル)とBAFL 4.66g(13.4ミリモル)を入れ、DMAcとGBLの混合溶媒(DMAc:GBL=1:2(重量比))を、仕込みモノマー総質量(ジアミン成分とカルボン酸成分の総和)が 25質量%となる量の84.71g(DMAcが28.24gとGBLが56.47g)を加え、室温で1時間攪拌した。この溶液にCpODA 8.57g(22.3ミリモル)とPMDA-H 5.00g(22.3ミリモル)を徐々に加えた。70℃で3時間、160℃で7時間撹拌し、均一で粘稠なポリイミド溶液を得た。得られたポリイミド溶液のイミド化率は95%以上であった。
窒素ガスで置換した反応容器中にTFMB 10.00g(31.2ミリモル)とBAFL 4.66g(13.4ミリモル)を入れ、DMAcとGBLの混合溶媒(DMAc:GBL=1:2(重量比))を、仕込みモノマー総質量(ジアミン成分とカルボン酸成分の総和)が 25質量%となる量の90.06g(DMAcが30.02gとGBLが60.04g)を加え、室温で1時間攪拌した。この溶液にCpODA 12.86g(33.5ミリモル)とPMDA-H 2.50g(11.1ミリモル)を徐々に加えた。70℃で3時間、160℃で7時間撹拌し、均一で粘稠なポリイミド溶液を得た。得られたポリイミド溶液のイミド化率は95%以上であった。
窒素ガスで置換した反応容器中にTFMB 7.50g(23.4ミリモル)とBAFL 8.16g(23.4ミリモル)を入れ、DMAcとGBLの混合溶媒(DMAc:GBL=1:2(重量比))を、仕込みモノマー総質量(ジアミン成分とカルボン酸成分の総和)が 25質量%となる量の95.40g(DMAcが31.80gとGBLが63.60g)を加え、室温で1時間攪拌した。この溶液にCpODA 13.50g(35.1ミリモル)とPMDA-H 2.63g(11.7ミリモル)を徐々に加えた。70℃で3時間、160℃で7時間撹拌し、均一で粘稠なポリイミド溶液を得た。得られたポリイミド溶液のイミド化率は95%以上であった。
窒素ガスで置換した反応容器中にTFMB 8.00g(25.0ミリモル)とBAFL 8.70g(25.0ミリモル)を入れ、DMAcとGBLの混合溶媒(DMAc:GBL=1:2(重量比))を、仕込みモノマー総質量(ジアミン成分とカルボン酸成分の総和)が 25質量%となる量の95.73g(DMAcが31.91gとGBLが63.82g)を加え、室温で1時間攪拌した。この溶液にCpODA 13.50g(25.0ミリモル)とPMDA-H 2.63g(25.0ミリモル)を徐々に加えた。70℃で3時間、160℃で7時間撹拌し、均一で粘稠なポリイミド溶液を得た。得られたポリイミド溶液のイミド化率は95%以上であった。
窒素ガスで置換した反応容器中にTFMB 15.00g(46.8ミリモル)を入れ、DMAcとGBLの混合溶媒(DMAc:GBL=1:2(重量比))を、仕込みモノマー総質量(ジアミン成分とカルボン酸成分の総和)が 25質量%となる量の90.00g(DMAcが30.00gとGBLが60.00g)を加え、室温で1時間攪拌した。この溶液にCpODA 10.80g(28.1ミリモル)とPMDA-H 4.20g(18.7ミリモル)を徐々に加えた。70℃で3時間、160℃で7時間撹拌し、均一で粘稠なポリイミド溶液を得た。得られたポリイミド溶液のイミド化率は95%以上であった。
窒素ガスで置換した反応容器中にTFMB 15.00g(46.8ミリモル)を入れ、DMAcとGBLの混合溶媒(DMAc:GBL=1:2(重量比))を、仕込みモノマー総質量(ジアミン成分とカルボン酸成分の総和)が 25質量%となる量の93.95g(DMAcが31.32gとGBLが62.63g)を加え、室温で1時間攪拌した。この溶液にCpODA 10.80g(28.1ミリモル)とa-BPDA 5.51g(18.7ミリモル)を徐々に加えた。70℃で3時間、160℃で7時間撹拌し、均一で粘稠なポリイミド溶液を得た。得られたポリイミド溶液のイミド化率は95%以上であった。
窒素ガスで置換した反応容器中にTFMB 40.00g(124.9ミリモル)を入れ、DMAcとGBLの混合溶媒(DMAc:GBL=1:2(重量比))を、仕込みモノマー総質量(ジアミン成分とカルボン酸成分の総和)が 25質量%となる量の264.04g(DMAcが88.01gとGBLが176.03g)を加え、室温で1時間攪拌した。この溶液にCpODA 48.01g(124.9ミリモル)を徐々に加えた。70℃で3時間、160℃で7時間撹拌し、均一で粘稠なポリイミド溶液を得た。得られたポリイミド溶液のイミド化率は95%以上であった。
Claims (7)
- 下記一般式(1)で表される繰り返し単位を含むポリイミド前駆体であって、
下記一般式(1)のA1が、下記式(A-1)で表される4価の基を含み、且つ、下記一般式(1)のB1が、下記式(B-1)で表される2価の基を含み、
さらに、下記一般式(1)のA1および/またはB1が、下記式(2)で表される構造を含む4価または2価の基を含むか、または、下記一般式(1)のA1が、下記式(3)で表される4価の基および/または下記式(4)で表される4価の基を含み、
一般式(1)のA1100モル%中の式(A-1)で表される4価の基、式(2)で表される構造を含む4価の基、式(3)で表される4価の基、および、式(4)で表される4価の基の合計の含有比率と、一般式(1)のB1100モル%中の式(B-1)で表される2価の基、および、式(2)で表される構造を含む2価の基の合計の含有比率の和が、120モル%以上であり、
ただし、式(A-1)で表される4価の基、式(2)で表される構造を含む4価の基、式(3)で表される4価の基、および、式(4)で表される4価の基の合計に対する、式(2)で表される構造を含む4価の基、式(3)で表される4価の基、および、式(4)で表される4価の基の比率が、80モル%以下であり、且つ、
式(B-1)で表される2価の基、および、式(2)で表される構造を含む2価の基の合計に対する、式(2)で表される構造を含む2価の基の比率が、80モル%以下であることを特徴とするポリイミド前駆体。
- 下記一般式(5)で表される繰り返し単位を含むポリイミドであって、
下記一般式(5)のA2が、下記式(A-1)で表される4価の基を含み、且つ、下記一般式(5)のB2が、下記式(B-1)で表される2価の基を含み、
さらに、下記一般式(5)のA2および/またはB2が、下記式(2)で表される構造を含む4価または2価の基を含むか、または、下記一般式(5)のA2が、下記式(3)で表される4価の基および/または下記式(4)で表される4価の基を含み、
一般式(5)のA2100モル%中の式(A-1)で表される4価の基、式(2)で表される構造を含む4価の基、式(3)で表される4価の基、および、式(4)で表される4価の基の合計の含有比率と、一般式(5)のB2100モル%中の式(B-1)で表される2価の基、および、式(2)で表される構造を含む2価の基の合計の含有比率の和が、120モル%以上であり、
ただし、式(A-1)で表される4価の基、式(2)で表される構造を含む4価の基、式(3)で表される4価の基、および、式(4)で表される4価の基の合計に対する、式(2)で表される構造を含む4価の基、式(3)で表される4価の基、および、式(4)で表される4価の基の比率が、80モル%以下であり、且つ、
式(B-1)で表される2価の基、および、式(2)で表される構造を含む2価の基の合計に対する、式(2)で表される構造を含む2価の基の比率が、80モル%以下であることを特徴とするポリイミド。
- 請求項1に記載のポリイミド前駆体から得られるポリイミド。
- 請求項1に記載のポリイミド前駆体、または請求項2に記載のポリイミドを含むワニス。
- 請求項1に記載のポリイミド前駆体、または請求項2に記載のポリイミドを含むワニスを用いて得られたポリイミドフィルム。
- 請求項2または3に記載のポリイミドを含むフィルム、または請求項5に記載のポリイミドフィルムがガラス基材上に形成されていることを特徴とする積層体。
- 請求項2または3に記載のポリイミド、または請求項5に記載のポリイミドフィルムを含むことを特徴とするディスプレイ用、タッチパネル用、または太陽電池用の基板。
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013179727A1 (ja) * | 2012-05-28 | 2013-12-05 | 宇部興産株式会社 | ポリイミド前駆体及びポリイミド |
WO2016063988A1 (ja) * | 2014-10-23 | 2016-04-28 | 宇部興産株式会社 | ポリイミド前駆体、ポリイミド、及びポリイミドフィルム |
JP2016132686A (ja) * | 2015-01-15 | 2016-07-25 | Jxエネルギー株式会社 | ポリイミド、ポリイミドの製造方法、ポリイミド溶液及びポリイミドフィルム |
JP2016204568A (ja) * | 2015-04-27 | 2016-12-08 | 宇部興産株式会社 | ポリアミック酸溶液組成物およびポリイミドフィルム |
JP2016204569A (ja) * | 2015-04-27 | 2016-12-08 | 宇部興産株式会社 | ポリアミック酸溶液組成物およびポリイミドフィルム |
JP2018044180A (ja) * | 2017-12-26 | 2018-03-22 | Jxtgエネルギー株式会社 | ポリイミド樹脂組成物及びポリイミドワニス |
WO2018066522A1 (ja) * | 2016-10-07 | 2018-04-12 | Jxtgエネルギー株式会社 | ポリイミド、ポリイミド前駆体樹脂、それらの溶液、ポリイミドの製造方法、及び、ポリイミドを用いたフィルム |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014046064A1 (ja) | 2012-09-18 | 2014-03-27 | 宇部興産株式会社 | ポリイミド前駆体、ポリイミド、ポリイミドフィルム、ワニス、及び基板 |
JP6950684B2 (ja) | 2016-05-06 | 2021-10-13 | 三菱瓦斯化学株式会社 | ポリイミド樹脂 |
JP2017133027A (ja) | 2016-09-13 | 2017-08-03 | Jxtgエネルギー株式会社 | ポリイミド、ポリイミドの製造方法、ポリイミド溶液及びポリイミドフィルム |
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Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013179727A1 (ja) * | 2012-05-28 | 2013-12-05 | 宇部興産株式会社 | ポリイミド前駆体及びポリイミド |
WO2016063988A1 (ja) * | 2014-10-23 | 2016-04-28 | 宇部興産株式会社 | ポリイミド前駆体、ポリイミド、及びポリイミドフィルム |
JP2016132686A (ja) * | 2015-01-15 | 2016-07-25 | Jxエネルギー株式会社 | ポリイミド、ポリイミドの製造方法、ポリイミド溶液及びポリイミドフィルム |
JP2016204568A (ja) * | 2015-04-27 | 2016-12-08 | 宇部興産株式会社 | ポリアミック酸溶液組成物およびポリイミドフィルム |
JP2016204569A (ja) * | 2015-04-27 | 2016-12-08 | 宇部興産株式会社 | ポリアミック酸溶液組成物およびポリイミドフィルム |
WO2018066522A1 (ja) * | 2016-10-07 | 2018-04-12 | Jxtgエネルギー株式会社 | ポリイミド、ポリイミド前駆体樹脂、それらの溶液、ポリイミドの製造方法、及び、ポリイミドを用いたフィルム |
JP2018044180A (ja) * | 2017-12-26 | 2018-03-22 | Jxtgエネルギー株式会社 | ポリイミド樹脂組成物及びポリイミドワニス |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021100727A1 (ja) * | 2019-11-18 | 2021-05-27 | 三菱瓦斯化学株式会社 | ポリイミド樹脂、ポリイミドワニス及びポリイミドフィルム |
WO2021193568A1 (ja) * | 2020-03-27 | 2021-09-30 | 三菱瓦斯化学株式会社 | ポリイミドフィルム及び積層体 |
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