WO2017221972A1 - 芳香族ポリスルホンおよび芳香族ポリスルホン組成物 - Google Patents
芳香族ポリスルホンおよび芳香族ポリスルホン組成物 Download PDFInfo
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G75/00—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
- C08G75/20—Polysulfones
- C08G75/23—Polyethersulfones
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/34—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives
- C08G65/38—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols
- C08G65/40—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols (I) and other compounds (II), e.g. OH-Ar-OH + X-Ar-X, where X is halogen atom, i.e. leaving group
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/34—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives
- C08G65/38—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols
- C08G65/40—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives derived from phenols from phenols (I) and other compounds (II), e.g. OH-Ar-OH + X-Ar-X, where X is halogen atom, i.e. leaving group
- C08G65/4012—Other compound (II) containing a ketone group, e.g. X-Ar-C(=O)-Ar-X for polyetherketones
- C08G65/4056—(I) or (II) containing sulfur
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- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/34—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from hydroxy compounds or their metallic derivatives
- C08G65/46—Post-polymerisation treatment, e.g. recovery, purification, drying
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G75/00—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
- C08G75/20—Polysulfones
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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
- C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
- C08L71/08—Polyethers derived from hydroxy compounds or from their metallic derivatives
- C08L71/10—Polyethers derived from hydroxy compounds or from their metallic derivatives from phenols
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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
- C08L81/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen or carbon only; Compositions of polysulfones; Compositions of derivatives of such polymers
- C08L81/06—Polysulfones; Polyethersulfones
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/86—Signal analysis
- G01N30/8624—Detection of slopes or peaks; baseline correction
- G01N30/8631—Peaks
- G01N30/8634—Peak quality criteria
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/88—Integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86
Definitions
- the present invention relates to aromatic polysulfones and aromatic polysulfone compositions.
- This application claims priority based on Japanese Patent Application No. 2016-125965 filed in Japan on June 24, 2016, the contents of which are incorporated herein by reference.
- Aromatic polysulfone is an amorphous thermoplastic resin that has excellent heat resistance, mechanical properties, and transparency. Therefore, aromatic polysulfone is used as a molding material and film forming material in various applications such as electronic device parts. ing. Aromatic polysulfone is usually produced by subjecting an aromatic dihalogenosulfone compound and an aromatic dihydroxy compound to a polycondensation reaction in the presence of a base and a reaction solvent (see, for example, Patent Document 1).
- One method for producing a film using aromatic polysulfone as a forming material is a solution casting method.
- the solution casting method is widely known because it can obtain a film with less foreign matter and excellent thickness accuracy and surface smoothness.
- a solution in which aromatic polysulfone is dissolved hereinafter sometimes referred to as “aromatic polysulfone solution”
- aromatic polysulfone solution a solution in which aromatic polysulfone is dissolved
- a coating film is prepared with.
- a film is obtained by peeling this coating film from the metal substrate.
- the coating film is peeled from the metal substrate, if the adhesion between the coating film and the metal substrate is too strong, the film may be stretched or broken.
- an aromatic polysulfone having excellent peelability and an aromatic polysulfone composition containing this aromatic polysulfone are desired.
- the present invention has been made in view of such circumstances, and an object thereof is to provide an aromatic polysulfone having excellent peelability. Another object of the present invention is to provide an aromatic polysulfone composition containing this aromatic polysulfone.
- one embodiment of the present invention includes an aromatic polysulfone having at least one highly polar functional group at a terminal (hereinafter sometimes referred to as an aromatic polysulfone having a highly polar functional group),
- the ratio of the aromatic polysulfone having a highly polar functional group in the whole group polysulfone is 0.1% by mass or more and 11% by mass or less.
- an area of a signal attributed to an aromatic polysulfone having a highly polar functional group is calculated as follows: An aromatic polysulfone having a ratio obtained by dividing the total area of all signals attributed to the aromatic polysulfone by 0.1 to 11% by mass is provided.
- Ph 1 and Ph 2 each independently represent a phenylene group, and one or more hydrogen atoms of the phenylene group are each independently substituted with an alkyl group, an aryl group, or a halogen atom. May be. ]
- One embodiment of the present invention provides an aromatic polysulfone composition containing the above aromatic polysulfone.
- a filler is further included.
- an aromatic polysulfone having excellent peelability is provided.
- An aromatic polysulfone composition containing the aromatic polysulfone is also provided.
- an aromatic polysulfone comprising an aromatic polysulfone having at least one highly polar functional group at a terminal, The aromatic polysulfone has a signal area attributed to the aromatic polysulfone having a highly polar functional group in the chromatogram obtained by measurement by gel permeation chromatography under the following conditions.
- Aromatic polysulfone which is 0.1% or more and 11% or less with respect to the total area of all assigned signals.
- Ph 1 and Ph 2 each independently represent a phenylene group, and one or more hydrogen atoms of the phenylene group are each independently substituted with an alkyl group, an aryl group, or a halogen atom. It may be.
- Ph 3 The aromatic polysulfone according to [2], having 0.5 to 10 phenolic hydroxyl groups per 100 repeating units represented by the formula (1).
- An aromatic polysulfone composition comprising the aromatic polysulfone according to any one of [1] to [3].
- the aromatic polysulfone of the present embodiment typically has a divalent aromatic group (residue obtained by removing two hydrogen atoms bonded to the aromatic ring from the aromatic compound) and a sulfonyl group (—SO 2). 2- ) and a resin having a repeating unit containing an oxygen atom.
- the aromatic polysulfone preferably has a repeating unit represented by the formula (1) (hereinafter sometimes referred to as “repeating unit (1)”).
- a repeating unit represented by the formula (1) hereinafter sometimes referred to as “repeating unit (1)”.
- an aromatic polysulfone having a repeating unit (1) is referred to as an aromatic polyether sulfone.
- the repeating unit represented by the formula (2) hereinafter sometimes referred to as “repeating unit (2)”
- the repeating unit represented by the formula (3) hereinafter referred to as “repeating unit (3)”. May have at least one other repeating unit.
- Ph 1 and Ph 2 each independently represent a phenylene group; one or more hydrogen atoms of the phenylene group are each independently substituted with an alkyl group, an aryl group, or a halogen atom. It may be. ]
- Ph 3 and Ph 4 each independently represent a phenylene group; one or more hydrogen atoms of the phenylene group are each independently substituted with an alkyl group, an aryl group, or a halogen atom.
- R may be an alkylidene group, an oxygen atom or a sulfur atom.
- Ph 5 represents a phenylene group; one or more hydrogen atoms of the phenylene group may each independently be substituted with an alkyl group, an aryl group, or a halogen atom; n Is an integer of 1 to 3, and when n is 2 or more, a plurality of Ph 5 may be the same or different from each other. ]
- the phenylene group represented by any of Ph 1 to Ph 5 may independently be a p-phenylene group, an m-phenylene group, or an o-phenylene group. However, it is preferably a p-phenylene group.
- the alkyl group that may substitute a hydrogen atom of the phenylene group is preferably an alkyl group having 1 to 10 carbon atoms.
- Examples of the alkyl group having 1 to 10 carbon atoms include methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, isobutyl group, sec-butyl group, tert-butyl group, n-pentyl group, n Examples include -hexyl group, n-heptyl group, 2-ethylhexyl group, n-octyl group and n-decyl group.
- the aryl group that may substitute a hydrogen atom of the phenylene group is preferably an aryl group having 6 to 20 carbon atoms.
- Examples of the aryl group having 6 to 20 carbon atoms include phenyl group, o-tolyl group, m-tolyl group, p-tolyl group, 1-naphthyl group and 2-naphthyl group.
- the number thereof is preferably 2 or less and more preferably 1 for each phenylene group.
- the alkylidene group represented by R is preferably an alkylidene group having 1 to 5 carbon atoms.
- Examples of the alkylidene group having 1 to 5 carbon atoms include a methylene group, an ethylidene group, an isopropylidene group, and a 1-butylidene group.
- the aromatic polysulfone of the present embodiment preferably has 50 mol% or more, more preferably 80 mol% or more of the repeating unit (1) with respect to the total amount of all repeating units constituting the repeating unit. It is more preferable to have substantially only the repeating unit (1), and it is particularly preferable to have only the repeating unit (1). That is, the aromatic polysulfone of this embodiment preferably has 50 to 100 mol% of the repeating unit (1) with respect to the total amount of all repeating units constituting the aromatic polysulfone, and is 80 to 100 mol%. % Or less, more preferably 100 mol%.
- the aromatic polysulfone may have two or more repeating units (1) to (3) independently of each other.
- the aromatic polysulfone includes an aromatic polysulfone having at least one highly polar functional group at the terminal.
- aromatic polysulfone having at least one highly polar functional group at a terminal may be simply referred to as “aromatic polysulfone having a highly polar functional group”.
- the aromatic polysulfone of the present embodiment may be a mixture of an aromatic polysulfone having a highly polar functional group and an aromatic polysulfone not having a highly polar functional group, and having a highly polar functional group. You may be comprised only from aromatic polysulfone.
- the “highly polar functional group” specifically means a polar functional group having an acid separation constant smaller than that of a carboxy group.
- the highly polar functional group include a sulfonic acid group (—SO 2 OH), a sulfinic acid group (—SO 2 H), or a salt thereof.
- An aromatic polysulfone containing a sulfonic acid group, a sulfinic acid group or a salt thereof is produced by the decomposition of the repeating unit (1) in the aromatic polysulfone and reacting with moisture in the air or resin. Moreover, it can obtain by substituting the functional group (hydroxyl group or halogen atom) of the terminal of a polymer with the compound which has a highly polar functional group after the polymerization reaction mentioned later.
- the type of the highly polar functional group is specified by a matrix-assisted laser desorption / ionization (may be abbreviated as MALDI) method after fractionating an aromatic polysulfone having a highly polar functional group in GPC measurement described later. be able to.
- MALDI matrix-assisted laser desorption / ionization
- the highly polar functional group interacts with the surface of the adhesive or pressure-sensitive adhesive or with the reactive functional group present on the surface to chemically or electrically bond the aromatic polysulfone to the surface. For this reason, if the aromatic polysulfone contains too many highly polar functional groups, the peelability of the aromatic polysulfone may be lowered.
- the ratio of the aromatic polysulfone having a highly polar functional group to the whole aromatic polysulfone that is, the content ratio of the aromatic polysulfone having a highly polar functional group to the total mass of the aromatic polysulfone. Is 0.1 mass% or more and 11 mass% or less. The ratio may be 8% by mass or more and 11% by mass or less. When the ratio of the aromatic polysulfone having a highly polar functional group is within the above range, the peelability of the aromatic polysulfone can be improved.
- the content ratio of the aromatic polysulfone having a highly polar functional group is measured by a gel permeation chromatography (GPC) method. Specifically, in the chromatogram obtained when measured by the GPC method under the following conditions (measurement conditions and analysis conditions), a signal (hereinafter referred to as “component A”) attributed to the aromatic polysulfone having a highly polar functional group. Is divided by the total area of all signals attributed to the aromatic polysulfone.
- FIG. 1 is a chromatogram obtained when measured by the GPC method under the above conditions.
- “Shodex KF-803” manufactured by Showa Denko Co., Ltd. is a column for gel permeation chromatography filled with a styrene vinyl benzene copolymer resin and having an inner diameter ⁇ height of 8.0 mm ⁇ 300 mm. The particle size of the coalesced resin is 6 ⁇ m.
- Component A shown in FIG. 1 is attributed to an aromatic polysulfone having a highly polar functional group.
- the ratio obtained by dividing the area of component A by the total area of all signals attributed to aromatic polysulfone is the mass of aromatic polysulfone having a highly polar functional group corresponding to component A. This corresponds to the ratio of the total mass of aromatic polysulfone (total mass of aromatic polysulfone).
- the aromatic polysulfone having at least one highly polar functional group at the terminal and the aromatic polysulfone not having the highly polar functional group at the terminal have the same main chain skeleton, so that the detection light (UV: 277 nm) ) Is substantially the same. Therefore, the area of the detected signal corresponds to the mass.
- the aromatic polysulfone of the present embodiment contains an aromatic polysulfone having at least one highly polar functional group at the terminal, and is obtained by measurement using a gel permeation chromatography method under the above conditions.
- the ratio of the signal area attributed to the aromatic polysulfone having a highly polar functional group divided by the total area of all signals attributed to the aromatic polysulfone is 0.1% or more and 11% or less. It is an aromatic polysulfone. The ratio may be 8% or more and 11% or less.
- the aromatic polysulfone of the present embodiment contains an aromatic polysulfone having at least one highly polar functional group at the terminal, and in a chromatogram obtained when measured by gel permeation chromatography under the above conditions.
- the area of the signal attributed to the aromatic polysulfone having a highly polar functional group is 0.1% or more and 11% or less with respect to the total area of all signals attributed to the aromatic polysulfone, or It is an aromatic polysulfone which may be 8% or more and 11% or less.
- component A is not confirmed when lithium bromide is added to the eluent.
- component A is confirmed when lithium bromide is not added to the eluent.
- component A can be confirmed as a signal having a retention time earlier than the signal attributed to the aromatic polysulfone having no high-polar functional group at the terminal due to the ion exclusion effect. .
- the signal of the aromatic polysulfone having no highly polar functional group at the terminal is compared with the retention time of the aromatic polysulfone when N, N-dimethylformamide with 10 mM lithium bromide added to the eluent is used. This can be confirmed. That is, when N, N-dimethylformamide with 10 mM lithium bromide added to the eluent is used, aromatic polysulfone (aromatic polysulfone having at least one highly polar functional group at the terminal + highly polar functional group at the terminal).
- a signal having a retention time earlier than that of an aromatic polysulfone having no high-polar functional group at the terminal is assigned as a signal (component A) of the aromatic polysulfone having at least one high-polar functional group at the terminal. .
- the aromatic polysulfone of this embodiment it is preferable to have 0.5 to 10 phenolic hydroxyl groups per 100 repeating units represented by the formula (1).
- the number of reactive phenolic hydroxyl groups per 100 repeating units represented by the formula (1) is 0.5 or more and 10 or less, so that thermoplastic resins and thermosetting resins and aromatic polysulfones are alloyed.
- the aromatic polysulfone can be finely dispersed.
- the phenolic hydroxyl group may be 1 or more and 100 or less per 100 repeating units represented by the formula (1), or 1 or more and 1.82 or less.
- the number (A) of phenolic hydroxyl groups per 100 repeating units represented by the formula (1) is measured by NMR method. Specifically, in 1 H NMR measurement, the area (x) of signals attributed to four hydrogen atoms bonded to the phenol group in the repeating unit (1), and the carbon atom adjacent to the phenolic hydroxyl group, It can be calculated based on the following formula (S1) using the area (y) of the signal attributed to the two hydrogen atoms bonded to each other.
- A (y ⁇ 100 / x) ⁇ 2 (S1)
- 1 H NMR measurements are possible, but not particularly limited as long as the solvent can dissolve the aromatic polysulfone, and the like are preferable heavy dimethyl sulfoxide.
- the reduced viscosity (unit: dL / g) of the aromatic polysulfone of this embodiment is preferably 0.18 or more, and more preferably 0.22 or more and 0.80 or less.
- Aromatic polysulfone tends to improve heat resistance and strength / rigidity when formed into a molded product as the reduced viscosity is higher. However, if the aromatic polysulfone is too high, melting temperature and melt viscosity are likely to be high, and fluidity is likely to be low.
- the reduced viscosity is a value measured using an Ostwald type viscosity tube at 25 ° C. with a resin concentration in the N, N-dimethylformamide solution of 1.0 g / 100 ml.
- the number average molecular weight (Mn) of the aromatic polysulfone of this embodiment is preferably 6000 or more and 40000 or less, for example.
- the weight average molecular weight (Mw) of the aromatic polysulfone of this embodiment is preferably 9000 or more and 90000 or less, for example.
- the Mw / Mn value (polydispersity) of the aromatic polysulfone of the present embodiment is preferably 1.5 or more and 3.0 or less.
- the values of Mn, Mw, and Mw / Mn can be obtained by the method described in ⁇ Measurement of Mn and Mw of aromatic polysulfone described below, calculation of Mw / Mn>.
- the aromatic polysulfone of this embodiment can be produced by using an aromatic dihalogenosulfone compound and an aromatic dihydroxy compound as monomers and subjecting these monomers to a polycondensation reaction in the presence of a base in an organic solvent.
- the aromatic dihalogenosulfone compound and the aromatic dihydroxy compound correspond to the repeating unit constituting the aromatic polysulfone.
- the aromatic dihalogenosulfone compound may be a compound having an aromatic ring, a sulfonyl group, and two halogeno groups in one molecule.
- the aromatic dihydroxy compound should just be a compound which has an aromatic ring and two hydroxy groups in 1 molecule.
- the aromatic polysulfone having the repeating unit (1) uses a compound represented by the formula (4) (hereinafter sometimes referred to as “compound (4)”) as the aromatic dihalogenosulfone compound.
- compound (4) a compound represented by the formula (4)
- As an aromatic dihydroxy compound it can manufacture by using the compound (henceforth "compound (5)") represented by Formula (5).
- the aromatic polysulfone having the repeating unit (1) and the repeating unit (2) is represented by the formula (6) as the aromatic dihydroxy compound using the compound (4) as the aromatic dihalogenosulfone compound. It can be produced by using a compound (hereinafter sometimes referred to as “compound (6)”).
- the aromatic polysulfone having the repeating unit (1) and the repeating unit (3) is represented by the formula (7) as the aromatic dihydroxy compound using the compound (4) as the aromatic dihalogenosulfone compound. It can be produced by using a compound (hereinafter sometimes referred to as “compound (7)”).
- X 1 -Ph 1 -SO 2 -Ph 2 -X 2 (4)
- X 1 and X 2 each independently represent a halogen atom. Ph 1 and Ph 2 are as defined above.
- halogen atom represented by X 1 and X 2 examples include the same halogen atoms that may be substituted for the hydrogen atom of the phenylene group.
- Examples of the compound (4) include bis (4-chlorophenyl) sulfone and 4-chlorophenyl-3 ', 4'-dichlorophenylsulfone.
- Examples of the compound (5) include bis (4-hydroxyphenyl) sulfone, bis (4-hydroxy-3,5-dimethylphenyl) sulfone and bis (4-hydroxy-3-phenylphenyl) sulfone.
- Examples of the compound (6) include 2,2-bis (4-hydroxyphenyl) propane, 2,2-bis (4-hydroxyphenyl) hexafluoropropane, bis (4-hydroxyphenyl) sulfide, bis (4- Hydroxy-3-methylphenyl) sulfide and bis (4-hydroxyphenyl) ether.
- Examples of the compound (7) include hydroquinone, resorcin, catechol, phenylhydroquinone, 4,4′-dihydroxybiphenyl, 2,2′-dihydroxybiphenyl, 3,5,3 ′, 5′-tetramethyl-4,4 Examples include '-dihydroxybiphenyl, 2,2'-diphenyl-4,4'-dihydroxybiphenyl and 4,4'-dihydroxy-p-quarterphenyl.
- aromatic dihalogenosulfone compounds other than the compound (4) examples include 4,4'-bis (4-chlorophenylsulfonyl) biphenyl.
- a halogeno group and a hydroxy group in the molecule such as 4-hydroxy-4 ′-(4-chlorophenylsulfonyl) biphenyl, are used.
- a compound having a group can also be used.
- each of the aromatic dihalogenosulfone compound and the aromatic dihydroxy compound may be used alone or in combination of two or more. May be.
- the polycondensation of the aromatic dihalogenosulfone compound and the aromatic dihydroxy compound is preferably performed using an alkali metal salt of carbonic acid as a base. Moreover, it is preferable to carry out in an organic solvent as a polycondensation solvent, and it is more preferable to use the alkali metal carbonate of a carbonate as a base, and to carry out in an organic solvent.
- the alkali metal salt of carbonic acid may be an alkali carbonate that is a normal salt (ie, alkali metal carbonate), or an alkali bicarbonate that is an acidic salt (ie, alkali hydrogen carbonate, alkali metal bicarbonate). It may be a mixture of these (alkali carbonate and alkali bicarbonate).
- alkali carbonate for example, sodium carbonate and potassium carbonate are preferable.
- sodium bicarbonate also referred to as sodium bicarbonate
- potassium bicarbonate also referred to as potassium bicarbonate
- the type of organic solvent is not particularly limited, but is preferably an aprotic polar solvent.
- the boiling point of the organic solvent is not particularly limited, but is preferably 100 ° C. or higher and 400 ° C. or lower, and more preferably 100 ° C. or higher and 350 ° C. or lower.
- organic solvents examples include sulfoxides such as dimethyl sulfoxide; amides such as dimethylformamide, dimethylacetamide, and N-methyl-2-pyrrolidone; sulfolane (also referred to as 1,1-dioxothyrane), dimethyl sulfone, diethyl sulfone, and diisopropyl.
- Sulfones such as sulfone and diphenylsulfone; hydrogen atoms bonded to nitrogen atoms such as 1,3-dimethyl-2-imidazolidinone and 1,3-diethyl-2-imidazolidinone may be substituted. Examples thereof include compounds having a urea skeleton.
- dimethyl sulfoxide dimethylformamide, dimethylacetamide, N-methyl-2-pyrrolidone, sulfolane, diphenyl sulfone or 1,3-dimethyl-2-imidazolidinone
- dimethyl sulfoxide, dimethylformamide More preferred is dimethylacetamide, N-methyl-2-pyrrolidone, sulfolane or 1,3-dimethyl-2-imidazolidinone.
- organic solvents may be used alone or in combination of two or more.
- the melting temperature in the first stage is preferably 40 ° C. or higher and 180 ° C. or lower.
- the reaction temperature of the second stage polycondensation is preferably 180 ° C. or higher and 400 ° C. or lower. If no side reaction occurs, the higher the polycondensation temperature, the faster the target polycondensation proceeds, and the higher the degree of polymerization of the resulting aromatic polysulfone. As a result, aromatic polysulfone tends to have a high reduced viscosity. However, in fact, the higher the polycondensation temperature, the easier side reactions similar to the above occur, and the degree of polymerization of the resulting aromatic polysulfone decreases. Therefore, in consideration of the degree of this side reaction, it is necessary to adjust the polycondensation temperature so that an aromatic polysulfone having a predetermined reduced viscosity can be obtained.
- the blending ratio of the aromatic dihalogenosulfone compound to the aromatic dihydroxy compound is preferably 80 mol% or more and 120 mol% or less, and more preferably 90 mol% or more and 110 mol% or less.
- the use ratio of the alkali metal carbonate of carbonic acid relative to the aromatic dihydroxy compound is preferably 90 mol% or more and 130 mol% or less, more preferably 95 mol% or more and 120 mol% or less as an alkali metal.
- aromatic polysulfone tends to have a high reduced viscosity.
- the temperature is gradually raised to the reflux temperature of the organic solvent while reducing by-product water. After reaching the reflux temperature of the organic solvent, it is preferable to keep the temperature for a predetermined time.
- the predetermined time is preferably 1 hour or more and 50 hours or less, and more preferably 2 hours or more and 30 hours or less. If no side reaction occurs, the longer the polycondensation time, the more the target polycondensation proceeds, and the higher the degree of polymerization of the aromatic polysulfone obtained. As a result, aromatic polysulfone tends to have a high reduced viscosity.
- the terminal functional group of the polymer may be substituted with a compound having a highly polar functional group after the polymerization reaction.
- a compound having a functional group that reacts with the X 1 , X 2 or phenolic hydroxyl group at the terminal of the polymer and a highly polar functional group hereinafter sometimes referred to as an end cap agent
- an end cap agent By reacting with the obtained polymer, an aromatic polysulfone having at least one highly polar functional group at the terminal can be obtained.
- This reaction can be easily performed by adding an end cap agent when the polymerization reaction is completed.
- the end cap agent include 4-hydroxybenzenesulfonic acid, 3-hydroxybenzenesulfonic acid, (4-hydroxyphenyl) phosphonic acid, and alkali metal salts thereof.
- the alkali metal salt of unreacted carbonic acid and the by-produced alkali halide are reduced from the reaction mixture obtained in the second stage by filtration, extraction, centrifugation, etc.
- a solution obtained by dissolving polysulfone in an organic solvent (hereinafter sometimes referred to as “aromatic polysulfone solution”) is obtained.
- aromatic polysulfone solution is obtained from the aromatic polysulfone solution by reducing the organic solvent.
- Examples of the method of reducing the organic solvent from the aromatic polysulfone solution include a method of reducing the organic solvent directly from the aromatic polysulfone solution under reduced pressure or pressure.
- a method of reducing the organic solvent directly from the aromatic polysulfone solution under reduced pressure or pressure there is a method in which an aromatic polysulfone solution and an aromatic polysulfone poor solvent are mixed to precipitate the aromatic polysulfone, and the organic solvent is reduced by filtration or centrifugation.
- the precipitated aromatic polysulfone may be repeatedly washed with a poor solvent for aromatic polysulfone as necessary.
- the aromatic polysulfone thus obtained is a mixture in which an aromatic polysulfone having a highly polar functional group and an aromatic polysulfone not having a highly polar functional group are mixed at a predetermined ratio.
- the ratio of the aromatic polysulfone having a high polar functional group to the whole aromatic polysulfone that is, the high polar functional group relative to the total mass of the aromatic polysulfone is changed).
- the content ratio of the aromatic polysulfone possessed can be adjusted.
- an example of a method for adjusting the content ratio of the aromatic polysulfone having a highly polar functional group will be described in detail.
- a mixture of aromatic polysulfone and a predetermined solvent are mixed.
- a solvent that dissolves the aromatic polysulfone having no higher polar functional group more easily than the aromatic polysulfone having the higher polar functional group is used.
- examples of such a solvent include dichloromethane and chloroform. Of these, dichloromethane is preferred because of the large difference in solubility in these aromatic polysulfones.
- the aromatic polysulfone having no highly polar functional group is eluted from the aromatic polysulfone mixture toward the predetermined solvent existing around the aromatic polysulfone mixture. To do. At this time, aromatic polysulfone having a highly polar functional group is also eluted, but the amount of elution is smaller than that of aromatic polysulfone having no highly polar functional group. In the solvent), the ratio of the aromatic polysulfone having a highly polar functional group is lowered.
- the ratio of the aromatic polysulfone that does not have the high polar functional group decreases, and as a result, the high polar functional group is reduced.
- the ratio of the aromatic polysulfone is increased.
- this mixture (mixture of aromatic polysulfone + predetermined solvent) is separated into a solid and a solution using filtration, centrifugation, or the like.
- the predetermined solvent By reducing the predetermined solvent from the solid and the solution, it is possible to separate into a component containing a large amount of aromatic polysulfone having a highly polar functional group and a component containing a small amount of aromatic polysulfone having a highly polar functional group.
- Examples of the method for reducing the predetermined solvent include the methods exemplified in the method for reducing the organic solvent in the third stage.
- Such an operation may be repeated until the aromatic polysulfone having a highly polar functional group has a desired ratio. Also, two or more types of aromatic polysulfones having different ratios of aromatic polysulfone having a highly polar functional group are prepared, and appropriately blended depending on the ratio of the desired aromatic polysulfone having a highly polar functional group. Good.
- the ratio of the aromatic polysulfone having a highly polar functional group contained in the aromatic polysulfone of the present embodiment can be adjusted in this way.
- the aromatic polysulfone composition of the present embodiment preferably contains the aromatic polysulfone described above and further contains a filler. Moreover, you may further contain resin other than aromatic polysulfone.
- the content of the aromatic polysulfone is preferably 20 to 95% by mass with respect to the total mass of the aromatic polysulfone composition.
- filler examples include fibrous fillers, plate-like fillers, spherical fillers, powdery fillers, irregularly shaped fillers, and whiskers.
- fibrous filler examples include glass fiber, PAN-based carbon fiber, pitch-based carbon fiber, silica-alumina fiber, silica fiber, alumina fiber, other ceramic fiber, liquid crystal polymer (sometimes abbreviated as LCP) fiber, and aramid fiber. And polyethylene fibers. Moreover, whiskers, such as a wollastonite and a potassium titanate fiber, are also mentioned.
- Examples of the plate filler include talc, mica, graphite, and wollastonite.
- Examples of the spherical filler include glass beads and glass balloons.
- powder filler examples include calcium carbonate, dolomite, barium clay sulfate, titanium oxide, carbon black, conductive carbon, and fine silica.
- irregularly shaped fillers examples include glass flakes and irregularly shaped glass fibers.
- the filler content is preferably 0 to 250 parts by weight, more preferably 0 to 70 parts by weight, still more preferably 0 to 50 parts by weight, and particularly preferably 0 to 25 parts by weight with respect to 100 parts by weight of the aromatic polysulfone. .
- resins other than aromatic polysulfone include polyamide, polyester, polyphenylene sulfide, polycarbonate, polyphenylene ether, aromatic polyketone, polyetherimide, phenol resin, epoxy resin, polyimide resin, and modified products thereof.
- the content of the resin other than aromatic polysulfone is preferably 5 to 2000 parts by mass, more preferably 10 to 1000 parts by mass, and further preferably 20 to 500 parts by mass with respect to 100 parts by mass of aromatic polysulfone.
- the aromatic polysulfone composition of the present embodiment may further contain an organic solvent.
- the organic solvent may be added later when preparing the aromatic polysulfone composition, or may be included in advance in the aromatic polysulfone.
- an organic solvent the same organic solvent as exemplified in the production method of the present embodiment can be used.
- the content of the organic solvent is preferably 0 to 1 part by mass with respect to 100 parts by mass of the aromatic polysulfone.
- the aromatic polysulfone composition of this embodiment can contain various materials as needed as long as the effects of the present invention are not impaired.
- materials include coloring components, lubricants, various surfactants, antioxidants, thermal stabilizers, other various stabilizers, ultraviolet absorbers, and antistatic agents.
- the content of other components is preferably 0 to 1 part by mass with respect to 100 parts by mass of the aromatic polysulfone.
- the aromatic polysulfone composition of the present embodiment is The aromatic polysulfone described above; And at least one component selected from the group consisting of a filler, a resin other than aromatic polysulfone, an organic solvent, and other components.
- an aromatic polysulfone excellent in peelability and an aromatic polysulfone composition containing the aromatic polysulfone are provided.
- aromatic polysulfone of this embodiment is An aromatic polysulfone comprising an aromatic polysulfone having at least one highly polar functional group at its end,
- the aromatic polysulfone is Having a repeating unit represented by the above formula (1), preferably a repeating unit obtained by polycondensation reaction of bis (4-chlorophenyl) sulfone and bis (4-hydroxyphenyl) sulfone;
- the area of the signal attributed to the aromatic polysulfone having a highly polar functional group in the chromatogram obtained by the gel permeation chromatography method under the following conditions is the total signal attributed to the aromatic polysulfone.
- Aromatic polysulfone which may be from 0.1% to 11%, or from 8% to 11%, based on the total area.
- Sample injection volume 5 ⁇ L
- Column temperature 40 ° C
- Eluent N, N-dimethylformamide
- Eluent flow rate 0.5 mL / min
- Detector UV-visible spectrophotometer (UV) Detection wavelength: 277 nm
- UV-visible spectrophotometer (UV) Detection wavelength 277 nm
- Mw / Mn The weight average molecular weight (Mw), number average molecular weight (Mn) and polydispersity (Mw / Mn) of the aromatic polysulfone were determined by GPC measurement. Note that Mn and Mw were measured twice, and the average values thereof were determined to be Mn and Mw, respectively, and the average value of Mw / Mn was determined.
- reaction mixed solution was diluted with NMP and cooled to room temperature, so that unreacted potassium carbonate and by-produced potassium chloride were precipitated.
- an aromatic polysulfone solution obtained by dissolving aromatic polysulfone in NMP was obtained.
- this solution was dropped into water to precipitate aromatic polysulfone, and unnecessary NMP was reduced by filtration to obtain a precipitate.
- the obtained precipitate was repeatedly washed with water and heated and dried at 150 ° C. to obtain aromatic polysulfone.
- FIG. 2 is a chromatogram of Production Example 1 obtained by the above content measurement.
- the aromatic polysulfone having a highly polar functional group (component A) in the chromatogram shown in FIG. 2 was fractionated and analyzed by the MALDI method. As a result, it was found that the highly polar functional group was sulfonic acid or sulfinic acid. It was.
- Example 1 1 part by mass of the aromatic polysulfone obtained in Production Example 1 and about 10 parts by mass of dichloromethane were mixed, shaken at room temperature, and allowed to stand for 1 hour. After standing, the upper layer dissolved in dichloromethane was extracted to obtain a solution in which aromatic polysulfone was dissolved. Dichloromethane was distilled off from this solution and dried to obtain the aromatic polysulfone of Example 1.
- Table 1 shows Mw, Mw / Mn, and the number (A) of phenolic hydroxyl groups per 100 repeating units represented by the formula (1) of the aromatic polysulfones of Examples and Comparative Examples.
- Example 2 The aromatic polysulfone of Example 2 was obtained by mixing 100 parts by mass of the aromatic polysulfone of Example 1 and 100 parts by mass of the aromatic polysulfone of Production Example 1. The ratio of aromatic polysulfone having a highly polar functional group calculated from the mixing ratio of Example 1 and Production Example 1 is shown in Table 2.
- Example 3 The aromatic polysulfone of Example 3 was obtained by mixing 30 parts by weight of the aromatic polysulfone of Example 1 and 70 parts by weight of the aromatic polysulfone of Production Example 1. The ratio of aromatic polysulfone having a highly polar functional group calculated from the mixing ratio of Example 1 and Production Example 1 is shown in Table 2.
- Table 2 shows the results of evaluation of the peelability of the aromatic polysulfones of Examples and Comparative Examples.
- the aromatic polysulfone of Examples 1 to 3 has a ratio of aromatic polysulfone having a high polar functional group to the whole aromatic polysulfone (that is, high polar functional group relative to the total mass of the aromatic polysulfone). Since the content ratio of the aromatic polysulfone possessed was 11 mass% or less, the peel strength at 260 ° C. and 280 ° C. was relatively low, and the peelability was excellent.
- the aromatic polysulfone of Comparative Example 1 is a ratio of the aromatic polysulfone having a high polar functional group to the whole aromatic polysulfone (that is, the content ratio of the aromatic polysulfone having a high polar functional group to the total mass of the aromatic polysulfone). ) Is greater than 11% by mass, the peel strength at 260 ° C. and 280 ° C. is relatively high and the peelability is poor.
- an aromatic polysulfone excellent in peelability and an aromatic polysulfone composition containing the aromatic polysulfone can be provided, which is industrially useful.
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Abstract
Description
本願は、2016年6月24日に、日本に出願された特願2016-125965号に基づき優先権を主張し、その内容をここに援用する。
また、フィルムの伸びを避けるために、剥離工程に時間を要すると、生産性が低下することがある。
[条件]
試料注入量:5μL
カラム:昭和電工株式会社製「Shodex KF-803」
カラム温度:40℃
溶離液:N,N-ジメチルホルムアミド
溶離液流量:0.5mL/分
検出器:紫外可視分光光度計(UV)
検出波長:277nm
-Ph1-SO2-Ph2-O- (1)
[式(1)中、Ph1およびPh2は、それぞれ独立に、フェニレン基を表し、フェニレン基の1個以上の水素原子は、それぞれ独立に、アルキル基、アリール基またはハロゲン原子で置換されていてもよい。]
[1]末端に少なくとも一つの高極性官能基を有する芳香族ポリスルホンを含む芳香族ポリスルホンであって、
前記芳香族ポリスルホンは、下記条件下で、ゲル浸透クロマトグラフィー法により測定したとき得られるクロマトグラムにおける、前記高極性官能基を有する芳香族ポリスルホンに帰属されるシグナルの面積が、前記芳香族ポリスルホンに帰属される全シグナルの合計の面積に対して、0.1%以上11%以下である、芳香族ポリスルホン。
[条件]
試料注入量:5μL
カラム:昭和電工株式会社製「Shodex KF-803」
カラム温度:40℃
溶離液:N,N-ジメチルホルムアミド
溶離液流量:0.5mL/分
検出器:紫外可視分光光度計(UV)
検出波長:277nm
[2]式(1)で表される繰返し単位を有する、[1]に記載の芳香族ポリスルホン。
-Ph1-SO2-Ph2-O- (1)
[式(1)中、Ph1およびPh2は、それぞれ独立に、フェニレン基を表し、前記フェニレン基の1個以上の水素原子は、それぞれ独立に、アルキル基、アリール基またはハロゲン原子で置換されていてもよい。]
[3]フェノール性水酸基を、前記式(1)で表される繰返し単位100個あたり0.5個以上10個以下有する、[2]に記載の芳香族ポリスルホン。
[4][1]~[3]のいずれかに1つに記載の芳香族ポリスルホンを含む、芳香族ポリスルホン組成物。
[5]さらに、フィラーを含む、[4]に記載の芳香族ポリスルホン組成物。
本実施形態の芳香族ポリスルホンは、典型的には、2価の芳香族基(芳香族化合物から、その芳香環に結合した水素原子を2個除いてなる残基)と、スルホニル基(-SO2-)と、酸素原子とを含む繰返し単位を有する樹脂である。
[式(1)中、Ph1およびPh2は、それぞれ独立に、フェニレン基を表し;前記フェニレン基の1個以上の水素原子は、それぞれ独立に、アルキル基、アリール基またはハロゲン原子で置換されていてもよい。]
[式(2)中、Ph3およびPh4は、それぞれ独立に、フェニレン基を表し;前記フェニレン基の1個以上の水素原子は、それぞれ独立に、アルキル基、アリール基またはハロゲン原子で置換されていてもよく:Rは、アルキリデン基、酸素原子または硫黄原子である。]
[式(3)中、Ph5は、フェニレン基を表し;前記フェニレン基の1個以上の水素原子は、それぞれに独立に、アルキル基、アリール基またはハロゲン原子で置換されていてもよく;nは、1~3の整数であり、nが2以上である場合、複数存在するPh5は、互いに同一でも異なっていてもよい。]
すなわち、本実施形態の芳香族ポリスルホンは、これを構成する全繰返し単位の合計量に対して、繰返し単位(1)を50モル%以上100モル%以下有することが好ましく、80モル%以上100モル%以下有することがより好ましく、100モル%有することが特に好ましい。
なお、芳香族ポリスルホンは、繰返し単位(1)~(3)を、互いに独立に、2種以上有していてもよい。
本実施形態の芳香族ポリスルホンは、1つの側面として、高極性官能基を有する芳香族ポリスルホンと高極性官能基を有さない芳香族ポリスルホンとの混合物であってもよく、高極性官能基を有する芳香族ポリスルホンのみから構成されていてもよい。
試料注入量:5μL
カラム:昭和電工株式会社製「Shodex KF-803」
カラム温度:40℃
溶離液:N,N-ジメチルホルムアミド
溶離液流量:0.5mL/分
検出器:紫外可視分光光度計(UV)
検出波長:277nm
ソフトウエア:株式会社島津製作所製、「LabSolutions」
Width:70秒
Slope:1000uV/分
Drift:0uV/分
最小面積/高さ:1000カウント
解析開始時間:0分
解析終了時間:22分
上記昭和電工株式会社製「Shodex KF-803」は、スチレンビニルベンゼン共重合体樹脂を充填した内径×高さが8.0mm×300mmのゲル浸透クロマトグラフィー用カラムであり、前記スチレンビニルベンゼン共重合体樹脂の粒径は6μmである。
図1に示す成分Aは、高極性官能基を有する芳香族ポリスルホンに帰属される。本実施形態において、成分Aの面積を芳香族ポリスルホンに帰属される全シグナルの合計の面積で除することで得られる割合は、成分Aに相当する高極性官能基を有する芳香族ポリスルホンの質量が、芳香族ポリスルホン全体の質量(芳香族ポリスルホンの総質量)に占める割合に対応する。なお、末端に少なくとも一つの高極性官能基を有する芳香族ポリスルホンと、末端に高極性官能基を有さない芳香族ポリスルホンとは、その主鎖骨格が同一であるため、検出光(UV:277nm)に対するモル吸光係数が略同一である。したがって、検出されたシグナルの面積と、質量とは対応する。
すなわち、1つの側面として、本実施形態の芳香族ポリスルホンは、末端に少なくとも一つの高極性官能基を有する芳香族ポリスルホンを含み、上記条件下で、ゲル浸透クロマトグラフィー法により測定したとき得られるクロマトグラムにおいて、前記高極性官能基を有する芳香族ポリスルホンに帰属されるシグナルの面積を、前記芳香族ポリスルホンに帰属される全シグナルの合計の面積で除した割合が0.1%以上11%以下である、芳香族ポリスルホンである。前記割合は、8%以上11%以下であってもよい。
別の側面として、本実施形態の芳香族ポリスルホンは、末端に少なくとも一つの高極性官能基を有する芳香族ポリスルホンを含み、上記条件下で、ゲル浸透クロマトグラフィー法により測定したとき得られるクロマトグラムにおける、前記高極性官能基を有する芳香族ポリスルホンに帰属されるシグナルの面積が、前記芳香族ポリスルホンに帰属される全シグナルの合計の面積に対して、0.1%以上11%以下であり、または8%以上11%以下であってもよい、芳香族ポリスルホンである。
別の側面として、フェノール性水酸基は、式(1)で表される繰返し単位100個あたり1個以上2個以下であってもよく、1個以上1.82個以下であってもよい。
A=(y×100/x)×2 (S1)
ここで、還元粘度は、オストワルド型粘度管を使用して、25℃で、N,N-ジメチルホルムアミド溶液中の樹脂濃度が1.0g/100mlで測定した値である。
本実施形態の芳香族ポリスルホンの数平均分子量(Mn)は、例えば、6000以上、40000以下であることが好ましい。
本実施形態の芳香族ポリスルホンの重量平均分子量(Mw)は、例えば、9000以上、90000以下であることが好ましい。
本実施形態の芳香族ポリスルホンのMw/Mnの値(多分散度)は1.5以上、3.0以下であることが好ましい。
Mn、MwおよびMw/Mnの値は、<後述する芳香族ポリスルホンのMnおよびMwの測定、Mw/Mnの算出>に記載の方法により得ることができる。
本実施形態の芳香族ポリスルホンは、芳香族ジハロゲノスルホン化合物および芳香族ジヒドロキシ化合物をモノマーとして、これらのモノマーを、有機溶媒中、塩基存在下で重縮合反応させることにより製造することができる。
芳香族ジハロゲノスルホン化合物および芳香族ジヒドロキシ化合物は、芳香族ポリスルホンを構成する繰返し単位に対応するものである。そして、芳香族ジハロゲノスルホン化合物は、一分子中に芳香環と、スルホニル基と、2個のハロゲノ基とを有する化合物であればよい。また、芳香族ジヒドロキシ化合物は、一分子中に芳香環と、2個のヒドロキシ基とを有する化合物であればよい。
[式(4)中、X1およびX2は、それぞれ独立に、ハロゲン原子を表す。Ph1およびPh2は、前記と同義である。]
[式(5)中、Ph1およびPh2は、前記と同義である。]
[式(6)中、Ph3、Ph4およびRは、前記と同義である。]
[式(7)中、Ph5およびnは、前記と同義である。]
芳香族ジハロゲノスルホン化合物と芳香族ジヒドロキシ化合物との重縮合は、塩基として炭酸のアルカリ金属塩を用いて行われることが好ましい。また、重縮合溶媒として有機溶媒中で行われることが好ましく、塩基として炭酸のアルカリ金属塩を用い、かつ、有機溶媒中で行われることがより好ましい。
芳香族ポリスルホンの製造方法では、第1段階として、芳香族ジハロゲノスルホン化合物と、芳香族ジヒドロキシ化合物とを、有機溶媒に溶解させる。第2段階として、第1段階で得られた溶液に、炭酸のアルカリ金属塩を加えて、芳香族ジハロゲノスルホン化合物と芳香族ジヒドロキシ化合物とを重縮合反応させる。第3段階として、第2段階で得られた反応混合物から、未反応の塩基、副生成物(塩基としてアルカリ金属塩を用いた場合には、ハロゲン化アルカリ)、および有機溶媒を低減して、芳香族ポリスルホンを得る。
そのため、この副反応の度合いも考慮して、所定の還元粘度を有する芳香族ポリスルホンが得られるように、重縮合時間を調整する必要がある。
本実施形態では、この混合物に対して所定の操作を行うことにより、芳香族ポリスルホン全体に占める高極性官能基を有する芳香族ポリスルホンの割合(すなわち、芳香族ポリスルホンの総質量に対する高極性官能基を有する芳香族ポリスルホンの含有割合)を調整することができる。
以下、高極性官能基を有する芳香族ポリスルホンの含有割合を調整する方法の一例について詳述する。
本実施形態の芳香族ポリスルホン組成物は、上述した芳香族ポリスルホンを含み、さらにフィラーも含むことが好ましい。また、芳香族ポリスルホン以外の樹脂をさらに含んでもよい。
本実施形態の芳香族ポリスルホン組成物中、前記芳香族ポリスルホンの含有量は、前記芳香族ポリスルホン組成物の総質量に対して、20~95質量%が好ましい。
本実施形態におけるフィラーとしては、例えば繊維状フィラー、板状フィラー、球状フィラー、粉状フィラー、異形フィラー、ウイスカーなどが挙げられる。
本実施形態の芳香族ポリスルホン組成物は、さらに有機溶媒を含んでいてもよい。なお、有機溶媒は芳香族ポリスルホン組成物を調製するときに後から添加してもよいし、芳香族ポリスルホンに予め含まれていてもよい。このような有機溶媒として、本実施形態の製造方法で例示した有機溶媒と同様のものを使用することができる。
有機溶媒の含有量は、芳香族ポリスルホン100質量部に対して、0~1質量部が好ましい。
本実施形態の芳香族ポリスルホン組成物は、本発明の効果を損なわない限り、必要に応じて、種々の材料を含むことができる。このような材料としては、例えば着色成分、潤滑剤、各種界面活性剤、酸化防止剤、熱安定剤、その他各種安定剤、紫外線吸収剤、帯電防止剤などが挙げられる。
その他成分の含有量は、芳香族ポリスルホン100質量部に対して、0~1質量部が好ましい。
上述した芳香族ポリスルホンと、
フィラー、芳香族ポリスルホン以外の樹脂、有機溶媒、及びその他の成分からなる群から選択される少なくとも1つの成分と、を含む。
末端に少なくとも一つの高極性官能基を有する芳香族ポリスルホンを含む芳香族ポリスルホンであって、
前記芳香族ポリスルホンは、
上記式(1)で表される繰返し単位、好ましくは、ビス(4-クロロフェニル)スルホンおよびビス(4-ヒドロキシフェニル)スルホンを縮重合反応させて得られる繰り返し単位を有し;
下記条件下で、ゲル浸透クロマトグラフィー法により測定したとき得られるクロマトグラムにおける、前記高極性官能基を有する芳香族ポリスルホンに帰属されるシグナルの面積が、前記芳香族ポリスルホンに帰属される全シグナルの合計の面積に対して、0.1%以上11%以下である、または8%以上11%以下であってもよい、芳香族ポリスルホン。
[条件]
試料注入量:5μL
カラム:昭和電工株式会社製「Shodex KF-803」
カラム温度:40℃
溶離液:N,N-ジメチルホルムアミド
溶離液流量:0.5mL/分
検出器:紫外可視分光光度計(UV)
検出波長:277nm
前記芳香族ポリスルホンは、所定の条件で剥離強度を測定したとき、260℃での剥離強度が0.66N/cm2以下であり、かつ280℃での剥離強度が1.51N/cm2以下である芳香族ポリスルホンであることが好ましい。
なお、本実施例では、芳香族ポリスルホンの測定および評価を、以下の条件により行った。
芳香族ポリスルホンの重量平均分子量(Mw)、数平均分子量(Mn)および多分散度(Mw/Mn)は、GPC測定により求めた。なお、MnおよびMwはいずれも2回測定し、その平均値を求めて、それぞれMnおよびMwとし、Mw/Mnの平均値を求めた。
試料:10mM臭化リチウム含有N,N-ジメチルホルムアミド溶液1mLに対し、芳香族ポリスルホン0.002gを配合
試料注入量:100μL
カラム(固定相):東ソー株式会社製「TSKgel GMHHR-H」(7.8mmφ×300mm)を2本直列に連結
カラム温度:40℃
溶離液(移動相):10mM臭化リチウム含有N,N-ジメチルホルムアミド
溶離液流量:0.8mL/分
検出器:示差屈折率計(RI)+光散乱光度計(LS)
標準試薬:ポリスチレン
分子量算出法:光散乱光度計(LS)の測定結果から絶対分子量を算出
芳香族ポリスルホン全体に占める高極性官能基を有する芳香族ポリスルホンの割合(すなわち、芳香族ポリスルホンの総質量に対する高極性官能基を有する芳香族ポリスルホンの含有割合)は、GPC測定において芳香族ポリスルホンに帰属されるシグナルの合計の面積で、高極性官能基を有する芳香族ポリスルホンに帰属されるシグナルの面積を除することにより求めた。
装置:株式会社島津製作所製、「Nexera X2」
試料:N,N-ジメチルホルムアミド溶液1mLに対し、芳香族ポリスルホン0.001gを配合
試料注入量:5μL
カラム(固定相):昭和電工株式会社製「Shodex KF-803」(8.0mmφ×300mm)
カラム温度:40℃
溶離液(移動相):N,N-ジメチルホルムアミド
溶離液流量:0.5mL/分
検出器:紫外可視分光光度計(UV)
検出波長:277nm
ソフトウエア:株式会社島津製作所製、「LabSolutions」
Width(W):70秒
Slope(S):1000uV/分
Drift(D):0uV/分
最小面積/高さ(M):1000カウント
解析開始時間:0分
解析終了時間:22分
式(1)で表される繰返し単位100個あたりのフェノール性水酸基の数(A)は、1H NMR測定により求めた。具体的には、1H NMR測定において、繰返し単位(1)中のフェノール基に結合した4つの水素原子に帰属されるシグナルの面積(x)と、フェノール性水酸基の2つ隣の炭素原子とそれぞれ結合した2つの水素原子に帰属されるシグナルの面積(y)とを用いて、下記式(S1)に基づいて算出した。
A=(y×100/x)×2 (S1)
装置:Varian Inc.製、「Varian NMR System PS400WB」
磁場強度:9.4T(400MHz)
プローブ:Varian Inc.製、「Varian 400 DB AutoX WB Probe」(5mm)
測定法:シングルパルス法
測定温度:50℃
測定溶媒:重ジメチルスルホキシド(TMS含有)
待ち時間:10秒
パルス照射時間:11.9μ秒(90°パルス)
積算回数:64回
外部標準:TMS(0ppm)
[製造例1]
撹拌機、窒素導入管、温度計、および先端に受器を付したコンデンサーを備えた重合槽内で、ビス(4-クロロフェニル)スルホン85.46質量部、ビス(4-ヒドロキシフェニル)スルホン75.08質量部、炭酸カリウム43.54質量部およびN-メチル-2-ピロリドン(以下、「NMP」と言うことがある。)165質量部を混合し、190℃で6時間反応させた。次いで、得られた反応混合溶液を、NMPで希釈し、室温まで冷却して、未反応の炭酸カリウムおよび副生した塩化カリウムを析出させた。これらの無機塩をろ過により低減することで、芳香族ポリスルホンがNMPに溶解してなる芳香族ポリスルホン溶液を得た。さらに、この溶液を水中に滴下し、芳香族ポリスルホンを析出させ、ろ過により不要なNMPを低減することで、析出物を得た。得られた析出物を、水で繰返し洗浄し、150℃で加熱乾燥させることで、芳香族ポリスルホンを得た。
製造例1で得られた芳香族ポリスルホン1質量部と、ジクロロメタン約10質量部とを混合し、室温で振とうした後、1時間静置した。静置後、ジクロロメタンに溶解した上層を抜き出し、芳香族ポリスルホンが溶解してなる溶液を得た。この溶液からジクロロメタンを留去し、乾燥させることで、実施例1の芳香族ポリスルホンを得た。
製造例1の芳香族ポリスルホンをそのまま用いた。
実施例1の芳香族ポリスルホン100質量部および製造例1の芳香族ポリスルホン100質量部を混合することで、実施例2の芳香族ポリスルホンを得た。実施例1および製造例1の混合比から算出した高極性官能基を有する芳香族ポリスルホンの割合を表2に示す。
実施例1の芳香族ポリスルホン30質量部および製造例1の芳香族ポリスルホン70質量部を混合することで、実施例3の芳香族ポリスルホンを得た。実施例1および製造例1の混合比から算出した高極性官能基を有する芳香族ポリスルホンの割合を表2に示す。
加熱容器内で、実施例1~3および比較例の芳香族ポリスルホン15質量部およびNMP85質量部を混合し、60℃で2時間撹拌することで、淡黄色の芳香族ポリスルホン溶液を得た。これを、厚さ3mmのガラス板の一面にフィルムアプリケーターを用いて塗布した後、高温熱風乾燥器を用いて60℃で乾燥することで、芳香族ポリスルホンの塗膜を形成した。この塗膜を、窒素を流しながら、250℃で熱処理することで、ガラス板上に厚さ30μmの芳香族ポリスルホンフィルムを形成した。このフィルムをガラス板から剥離することにより、芳香族ポリスルホンフィルムを得た。
引張速度:5mm/分
温度:23℃
湿度:50%
Claims (5)
- 末端に少なくとも一つの高極性官能基を有する芳香族ポリスルホンを含む芳香族ポリスルホンであって、
前記芳香族ポリスルホンは、下記条件下で、ゲル浸透クロマトグラフィー法により測定したとき得られるクロマトグラムにおける、前記高極性官能基を有する芳香族ポリスルホンに帰属されるシグナルの面積が、前記芳香族ポリスルホンに帰属される全シグナルの合計の面積に対して、0.1%以上11%以下である、芳香族ポリスルホン。
[条件]
試料注入量:5μL
カラム:昭和電工株式会社製「Shodex KF-803」
カラム温度:40℃
溶離液:N,N-ジメチルホルムアミド
溶離液流量:0.5mL/分
検出器:紫外可視分光光度計(UV)
検出波長:277nm - 式(1)で表される繰返し単位を有する、請求項1に記載の芳香族ポリスルホン。
-Ph1-SO2-Ph2-O- (1)
[式(1)中、Ph1およびPh2は、それぞれ独立に、フェニレン基を表し、前記フェニレン基の1個以上の水素原子は、それぞれ独立に、アルキル基、アリール基またはハロゲン原子で置換されていてもよい。] - フェノール性水酸基を、前記式(1)で表される繰返し単位100個あたり0.5個以上10個以下有する、請求項2に記載の芳香族ポリスルホン。
- 請求項1~3のいずれかに1項に記載の芳香族ポリスルホンを含む、芳香族ポリスルホン組成物。
- さらに、フィラーを含む、請求項4に記載の芳香族ポリスルホン組成物。
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US10899889B2 (en) | 2021-01-26 |
CN109328207B (zh) | 2021-11-12 |
KR20190021240A (ko) | 2019-03-05 |
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US20190185625A1 (en) | 2019-06-20 |
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JP6967511B2 (ja) | 2021-11-17 |
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