WO2022270367A1 - 熱可塑性樹脂及びそれを含む光学レンズ - Google Patents
熱可塑性樹脂及びそれを含む光学レンズ Download PDFInfo
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- WO2022270367A1 WO2022270367A1 PCT/JP2022/023882 JP2022023882W WO2022270367A1 WO 2022270367 A1 WO2022270367 A1 WO 2022270367A1 JP 2022023882 W JP2022023882 W JP 2022023882W WO 2022270367 A1 WO2022270367 A1 WO 2022270367A1
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- thermoplastic resin
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
- C08G64/16—Aliphatic-aromatic or araliphatic polycarbonates
- C08G64/1608—Aliphatic-aromatic or araliphatic polycarbonates saturated
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- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
- G02B1/041—Lenses
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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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/64—Polyesters containing both carboxylic ester groups and carbonate groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/66—Polyesters containing oxygen in the form of ether groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
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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
- C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
- C08G64/20—General preparatory processes
- C08G64/30—General preparatory processes using carbonates
- C08G64/305—General preparatory processes using carbonates and alcohols
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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
- C08G85/00—General processes for preparing compounds provided for in this subclass
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/06—Ethers; Acetals; Ketals; Ortho-esters
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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
- C08L101/00—Compositions of unspecified macromolecular compounds
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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
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
- C08L67/025—Polyesters derived from dicarboxylic acids and dihydroxy compounds containing polyether sequences
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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
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
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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
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
- C08L69/005—Polyester-carbonates
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
Definitions
- the present invention relates to a thermoplastic resin and an optical lens containing the same. More particularly, the present invention relates to polycarbonate resins, polyester resins or polyester carbonate resins and optical lenses containing the same.
- Optical glass or optical resin is used as the material for the optical lenses used in the optical systems of various cameras such as cameras, film-integrated cameras, and video cameras.
- Optical glass is excellent in heat resistance, transparency, dimensional stability, chemical resistance, etc., but has problems of high material cost, poor moldability, and low productivity.
- optical lenses made of optical resins have the advantage that they can be mass-produced by injection molding, and polycarbonate, polyester carbonate, polyester resin, etc. are used as high refractive index materials for camera lenses.
- Patent Documents 1 to 5 When optical resins are used as optical lenses, heat resistance, transparency, low water absorption, chemical resistance, low birefringence, resistance to moist heat, etc. are required in addition to optical properties such as refractive index and Abbe number. Especially in recent years, there has been a demand for optical lenses having a high refractive index and high heat resistance, and various resins have been developed (Patent Documents 1 to 5).
- thermoplastic resins made from 2,2'-bis(2-hydroxyethoxy)-1,1'-binaphthalene have excellent optical properties and are useful as various optical materials (Patent Document 6. ).
- Patent Document 6. thermoplastic resins made from 2,2'-bis(2-hydroxyethoxy)-1,1'-binaphthalene have excellent optical properties and are useful as various optical materials.
- An object of the present invention is to provide a thermoplastic resin excellent in optical properties such as refractive index and Abbe's number, as well as excellent in heat resistance, and an optical lens using the same.
- the present inventors have found that by using a raw material obtained by introducing an aromatic ring into a diol compound having a binaphthalene structure, optical properties such as refractive index and Abbe number can be improved.
- the inventors have found that a thermoplastic resin excellent in heat resistance can be obtained, and have completed the present invention.
- R 1 to R 12 , Rk and Rp each independently represents a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, a cycloalkyl group having 5 to 20 carbon atoms, a cycloalkoxyl group having 5 to 20 carbon atoms, selected from an aryl group having 6 to 20 carbon atoms, a linear or branched alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, O, N and S represents a heteroaryl group having 6 to 20 carbon atoms or an aralkyl group having 7 to 20 carbon atoms containing one or more hetero ring atoms, X and Y
- thermoplastic resin according to ⁇ 2> R 1 to R 12 , Rk and Rp in the general formula (1) represent a hydrogen atom, X and Y represent a single bond, K 1 and K 2 represent —COOH or —COORq, and Rq is , the thermoplastic resin according to the above ⁇ 1> or ⁇ 2>, which represents an alkyl group having 1 to 5 carbon atoms.
- the thermoplastic resin contains a monomer-derived structural unit (B) represented by the following general formula (2) and/or a monomer-derived structural unit (C) represented by the following general formula (3). and the thermoplastic resin according to any one of ⁇ 1> to ⁇ 4> above.
- R a and R b each independently represents a hydrogen atom, a halogen atom, an optionally substituted alkyl group having 1 to 20 carbon atoms, or an alkoxyl group having 1 to 20 carbon atoms which may have a substituent.
- a and B each independently represents an optionally substituted alkylene group having 1 to 5 carbon atoms, m and n each independently represent an integer of 0 to 6, a and b each independently
- thermoplastic resin according to any one of ⁇ 1> to ⁇ 6>, further comprising a structural unit derived from at least one monomer selected from the following monomer group.
- R 1 and R 2 each independently represent a hydrogen atom, a methyl group or an ethyl group
- R 3 and R 4 each independently represent a hydrogen atom, a methyl group, an ethyl group or a represents an alkylene glycol of ⁇ 5.
- Raaa and Rbbb each independently represents a hydrogen atom, a halogen atom, an optionally substituted alkyl group having 1 to 20 carbon atoms, an optionally substituted carbon number 1 to 20 alkoxyl groups, optionally substituted C5 to C20 cycloalkyl groups, optionally substituted C5 to C20 cycloalkoxyl groups, optionally substituted an aryl group having 6 to 20 carbon atoms, an optionally substituted heteroaryl group having 6 to 20 carbon atoms containing one or more hetero ring atoms selected from O, N and S, a substituent an aryloxy group having 6 to 20 carbon atoms which may have; ⁇ 8> The thermoplastic resin according to any one of ⁇ 1> to ⁇ 7>, wherein the thermoplastic resin has a polystyrene equivalent weight average molecular weight (Mw) of 10,000 to 200,000.
- Mw polystyrene equivalent weight average molecular weight
- R 1 to R 12 , Rk and Rp each independently represents a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, a cycloalkyl group having 5 to 20 carbon atoms, a cycloalkoxyl group having 5 to 20 carbon atoms, selected from an aryl group having 6 to 20 carbon atoms, a linear or branched alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, O, N and S represents a heteroaryl group having 6 to 20 carbon atoms or an aralkyl group having 7 to 20 carbon atoms containing one or more hetero ring atoms, X and Y represent a single bond or an alkylene group having 1 to 5 carbon atoms, i and ii each independently represent an integer of 0 to 4, K 1 and K 2 each independently represents a
- thermoplastic resin composition according to ⁇ 12> An optical lens comprising the thermoplastic resin according to any one of ⁇ 1> to ⁇ 11> or the thermoplastic resin composition according to ⁇ 12>.
- An optical film comprising the thermoplastic resin according to any one of ⁇ 1> to ⁇ 11> above or the thermoplastic resin composition according to ⁇ 12> above.
- thermoplastic resin excellent in optical properties such as refractive index and Abbe's number, as well as excellent in heat resistance, and an optical lens containing the same.
- thermoplastic resin containing a monomer-derived structural unit (A) represented by the following general formula (1).
- R 1 to R 12 , Rk and Rp each independently represent a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, or a group having 5 to 20 carbon atoms (preferably 5 to 10, more preferably 6 to 8).
- R 1 to R 12 , Rk and Rp preferably each independently represent a hydrogen atom, a methyl group or a phenyl group, more preferably R 1 to R 12 , Rk and Rp all represent a hydrogen atom.
- X and Y represent a single bond or an alkylene group having 1 to 5 carbon atoms (preferably 1 to 3), preferably a single bond, a methylene group or an ethylene group, more preferably a single bond or a methylene group represents i and ii each independently represent an integer of 0 to 4, preferably an integer of 0 to 2; K 1 and K 2 each independently represent -OH, -COOH or -COORq, and Rq represents an alkyl group having 1 to 5 (preferably 1 to 3) carbon atoms.
- Rq preferably represents a methyl group, an ethyl group or a propyl group, more preferably a methyl group.
- R 1 to R 12 , Rk and Rp in general formula (1) represent a hydrogen atom
- X and Y represent a methylene group
- K 1 and K 2 represent —OH.
- R 1 to R 12 , Rk and Rp in general formula (1) represent a hydrogen atom
- X and Y represent a single bond
- K 1 and K 2 represent —COOH or —COORq
- Rq is carbon
- Embodiments representing alkyl groups of numbers 1 to 5 (preferably 1 to 3) are also preferred.
- the monomer represented by general formula (1) can be produced according to the method described in Adv. Synth. Catal. 2004, 346, 195-198. For example, it can be produced as shown in the following reaction scheme.
- thermoplastic resin of one embodiment of the present invention is polyester resin, polycarbonate resin, polyester carbonate resin, epoxy resin, polyurethane resin, polyacrylic acid ester resin, polymethacrylic acid ester resin, etc., but is not particularly limited. It is preferably a polyester resin or a polyester carbonate resin, and more preferably contains a structural unit (A) represented by the following formula. [Each symbol in the formula has the same meaning as in the general formula (1). ]
- the ratio of the structural unit (A) represented by the above formula to all structural units is not particularly limited, but it is preferably 1 to 90 mol% of all structural units. , more preferably 1 to 80 mol %, still more preferably 5 to 70 mol %, and particularly preferably 10 to 60 mol %. That is, the thermoplastic resin of one embodiment of the present invention is derived from an aliphatic dihydroxy compound that is generally used as a structural unit of polycarbonate resins and polyester carbonate resins, in addition to the structural unit (A) represented by the above formula. and structural units derived from aromatic dihydroxy compounds.
- various aliphatic dihydroxy compounds can be mentioned, and in particular, 1,4-cyclohexanedimethanol, tricyclodecanedimethanol, 1,3-adamantanedimethanol, 2,2-bis( 4-hydroxycyclohexyl)-propane, 3,9-bis(2-hydroxy-1,1-dimethylethyl)-2,4,8,10-tetraoxaspiro[5.5]undecane, 2-(5-ethyl -5-hydroxymethyl-1,3-dioxan-2-yl)-2-methylpropan-1-ol, isosorbide, 1,3-propanediol, 1,4-butanediol, 1,6-hexanediol, etc.
- aromatic dihydroxy compounds can be mentioned, but in particular 2,2-bis(4-hydroxyphenyl)propane [bisphenol A], bis(4-hydroxyphenyl)methane, 1,1-bis( 4-hydroxyphenyl)ethane, 2,2-bis(4-hydroxy-3,5-dimethylphenyl)propane, 4,4'-dihydroxydiphenyl, bis(4-hydroxyphenyl)cycloalkane, bis(4-hydroxyphenyl) ) oxide, bis(4-hydroxyphenyl) sulfide, bis(4-hydroxyphenyl) sulfone, bis(4-hydroxyphenyl) sulfoxide, and bis(4-hydroxyphenyl) ketone, bisphenoxyethanol fluorene, and the like.
- bisphenol A 2,2-bis(4-hydroxyphenyl)propane
- 1,1-bis( 4-hydroxyphenyl)ethane 1,1-bis( 4-hydroxyphenyl)ethane
- thermoplastic resin of one embodiment of the present invention preferably contains a monomer-derived structural unit (B) represented by the following general formula (2).
- R a and R b each independently represent a halogen atom, an optionally substituted alkyl group having 1 to 20 carbon atoms, an optionally substituted C 1 to 20 alkoxyl group, optionally substituted C5-20 cycloalkyl group, optionally substituted C5-20 cycloalkoxyl group, optionally substituted carbon an aryl group having 6 to 20 carbon atoms, an optionally substituted heteroaryl group having 6 to 20 carbon atoms containing one or more hetero ring atoms selected from O, N and S, having a substituent and an aryloxy group having 6 to 20 carbon atoms which may be optionally selected from the group consisting of —C ⁇ C—R h .
- R h is an optionally substituted aryl group having 6 to 20 carbon atoms, or an optionally substituted carbon containing one or more heterocyclic atoms selected from O, N and S represents a heteroaryl group of numbers 6 to 20;
- R a and R b preferably contain one or more heterocyclic atoms selected from a hydrogen atom, an optionally substituted aryl group having 6 to 20 carbon atoms, O, N and S, substituted a heteroaryl group having 6 to 20 carbon atoms which may have a group, more preferably a hydrogen atom, an aryl group having 6 to 20 carbon atoms which may have a substituent, still more preferably hydrogen It is an aryl group having 6 to 12 carbon atoms which may have atoms and substituents.
- X is a single bond or represents a fluorene group which may have a substituent. X is preferably a single bond or an optionally substituted fluorene group having 12 to 20 carbon atoms in total.
- a and B are each independently an optionally substituted alkylene group having 1 to 5 carbon atoms, preferably an alkylene group having 2 or 3 carbon atoms.
- m and n are each independently an integer of 0 to 6, preferably an integer of 0 to 3, more preferably 0 or 1.
- a and b are each independently an integer of 0 to 10, preferably an integer of 1 to 3, more preferably 1 or 2.
- structural unit (B) examples include those derived from 2,2'-bis(2-hydroxyethoxy)-1,1'-binaphthalene (BNE), DPBHBNA, and the like.
- thermoplastic resin of one embodiment of the present invention preferably has a monomer-derived structural unit (C) represented by the following general formula (3).
- R c and R d are each independently a halogen atom, an optionally substituted alkyl group having 1 to 20 carbon atoms, an optionally substituted C 1 to 20 alkoxyl groups, optionally substituted cycloalkyl groups having 5 to 20 carbon atoms, optionally substituted cycloalkoxyl groups having 5 to 20 carbon atoms, and optionally having substituents It is selected from the group consisting of good aryl groups having 6 to 20 carbon atoms.
- R c and R d preferably contain one or more heterocyclic atoms selected from a hydrogen atom, an optionally substituted aryl group having 6 to 20 carbon atoms, O, N and S, substituted a heteroaryl group having 6 to 20 carbon atoms which may have a group, more preferably a hydrogen atom, an aryl group having 6 to 20 carbon atoms which may have a substituent, still more preferably hydrogen It is an aryl group having 6 to 12 carbon atoms which may have atoms and substituents.
- Y 1 is a single bond, an optionally substituted fluorene group, or a structural formula represented by the following formulas (4) to (11), preferably , a single bond, or a structural formula represented by the following formula (4).
- R 61 , R 62 , R 71 and R 72 are each independently a hydrogen atom, a halogen atom, or an optionally substituted alkyl group having 1 to 20 carbon atoms.
- R aa and R bb have the same meanings as R a and R b in general formula (2) above.
- r and s are each independently an integer of 0 to 5000.
- a and B are each independently an optionally substituted alkylene group having 1 to 5 carbon atoms, preferably an alkylene group having 2 or 3 carbon atoms.
- p and q are each independently an integer of 0 to 4, preferably 0 or 1.
- a and b are each independently an integer of 0 to 10, preferably an integer of 0 to 5, more preferably an integer of 0 to 2. For example, 0 or 1.
- structural unit (C) examples include BPEF (9,9-bis(4-(2-hydroxyethoxy)phenyl)fluorene), BPPEF (9,9-bis(4-(2-hydroxyethoxy)-3- phenylphenyl)fluorene), 9,9-bis[6-(2-hydroxyethoxy)naphthalen-2-yl]fluorene (BNEF), bisphenol A, bisphenol AP, bisphenol AF, bisphenol B, bisphenol BP, bisphenol C, bis (4-hydroxyphenyl)-2,2-dichloroethylene, bisphenol E, bisphenol F, bisphenol G, bisphenol M, bisphenol S, bisphenol P, bisphenol PH, bisphenol TMC, bisphenol P-AP (4,4'-(1- phenylethylidene) bisphenol), bisphenol P-CDE (4,4'-cyclododecylidene bisphenol), bisphenol P-HTG (4,4'-(3,3,5-trimethylcyclohexylidene
- the thermoplastic resin of one embodiment of the present invention essentially comprises the structural unit (A), but includes a polymer containing the structural unit (B) and not containing the structural unit (C), a structural unit (C) containing the structural unit ( In addition to polymers not containing B), copolymers having the structural unit (B) and the structural unit (C), mixtures of polymers having the structural unit (B) and polymers having the structural unit (C), A combination of these may be used.
- the polymer containing the structural unit (C) and not containing the structural unit (B) include those having structural units of the following formulas (I-1) to (I-3).
- Examples of copolymers having structural units (C) include those having structural units of the following formulas (II-1) to (II-4).
- m and n are each an integer of 1 to 10, preferably an integer of 1 to 5, more preferably 1;
- the number of repeating units in formula (I-3) is an integer of 1 to 10, preferably an integer of 1 to 5, more preferably 1.
- the polymer having a plurality of types of structural units both a block copolymer having a large value of m and n, for example, 100 or more, and a random copolymer can be employed, but a random copolymer is preferable. More preferably, random copolymers in which the values of m and n are 1 are used.
- m and n are each independently an integer of 1 to 10, preferably an integer of 1 to 5, more preferably 1.
- a block copolymer having a large value of m and n for example, 100 or more, and a random copolymer can be employed, but a random copolymer is preferable. More preferably, random copolymers in which the values of m and n are 1 are used.
- the molar ratio of the structural unit (B) to the structural unit (C) is preferably from 1:99 to 99:1, more preferably from 10:90 to 90:10.
- the mass ratio of the polymer having the structural unit (B) and the polymer having the structural unit (C) is preferably 1:99 to 99:1, preferably 10:90 to 90:10. 15:85 to 85:15 is more preferred, and 30:70 to 70:30 is particularly preferred.
- the thermoplastic resin of one embodiment of the present invention also preferably contains structural units derived from at least one monomer selected from the following monomer group.
- R 1 and R 2 each independently represent a hydrogen atom, a methyl group or an ethyl group
- R 3 and R 4 each independently represent a hydrogen atom, a methyl group, an ethyl group or a represents an alkylene glycol of ⁇ 5.
- Raaa and Rbbb each independently represents a hydrogen atom, a halogen atom, an optionally substituted alkyl group having 1 to 20 carbon atoms, an optionally substituted carbon number 1 to 20 alkoxyl groups, optionally substituted C5 to C20 cycloalkyl groups, optionally substituted C5 to C20 cycloalkoxyl groups, optionally substituted an aryl group having 6 to 20 carbon atoms, an optionally substituted heteroaryl group having 6 to 20 carbon atoms containing one or more hetero ring atoms selected from O, N and S, a substituent an aryloxy group having 6 to 20 carbon atoms which may have;
- alcohol-based compounds such as phenol-based compounds that may be produced as by-products during production, and diol components or carbonic acid diesters that remain unreacted are present as impurities. may have.
- Alcoholic compounds such as phenolic compounds and carbonic acid diesters, which are impurities, can cause a decrease in strength and generation of odor when formed into a molded article.
- the content of the remaining phenolic compound is preferably 3000 mass ppm or less, more preferably 1000 mass ppm or less, and particularly preferably 300 mass ppm or less based on 100 mass% of the polycarbonate resin.
- the content of the remaining diol component is preferably 1000 mass ppm or less, more preferably 100 mass ppm or less, and particularly preferably 10 mass ppm or less based on 100 mass% of the polycarbonate resin.
- the content of the remaining carbonic acid diester is preferably 1000 mass ppm or less, more preferably 100 mass ppm or less, and particularly preferably 10 mass ppm or less based on 100 mass% of the polycarbonate resin.
- it is preferable that the content of compounds such as phenol and t-butylphenol is small, and that the content of these compounds is within the above range.
- the content of the phenolic compound remaining in the polycarbonate resin can be measured by a method of analyzing the phenolic compound extracted from the polycarbonate resin using gas chromatography.
- the content of the alcohol-based compound remaining in the polycarbonate resin can also be measured by a method of analyzing the alcohol-based compound extracted from the polycarbonate resin using gas chromatography.
- the contents of diol components and carbonic acid diesters remaining in the polycarbonate resin can also be measured by extracting these compounds from the polycarbonate resin and analyzing them using gas chromatography.
- by-product alcoholic compounds such as phenolic compounds, diol components, and carbonic acid diesters may be reduced to the extent that they are not detected. good too.
- the amount is very small, the plasticity can be improved when the resin is melted.
- each of the remaining phenolic compound, diol component, or diester carbonate is, for example, 0.01 mass ppm or more, 0.1 mass ppm or more, or 1 mass ppm or more with respect to 100 mass% of the polycarbonate resin.
- the content of the remaining alcohol compound may be, for example, 0.01 mass ppm or more, 0.1 mass ppm or more, or 1 mass ppm or more with respect to 100 mass% of the polycarbonate resin.
- by-product alcohol compounds such as phenolic compounds, diol components, and carbonic acid diesters in the polycarbonate resin are adjusted so as to fall within the above ranges by appropriately adjusting the polycondensation conditions and equipment settings. It is possible. It can also be adjusted by the conditions of the extrusion process after polycondensation.
- the residual amount of by-product alcoholic compounds such as phenolic compounds is related to the type of diester carbonate used in the polymerization of the polycarbonate resin, the polymerization reaction temperature, the polymerization pressure, and the like. By adjusting these, the residual amount of by-product alcoholic compounds such as phenolic compounds can be reduced.
- the content of the remaining by-product alcohol-based compound in the obtained polycarbonate resin is preferably 3000 mass ppm or less with respect to the polycarbonate resin (100 mass %).
- the content of the remaining alcohol-based compound is preferably 3000 mass ppm or less, more preferably 1000 mass ppm or less, and particularly preferably 300 mass ppm or less based on 100 mass% of the polycarbonate resin.
- thermoplastic resin ⁇ Physical properties of thermoplastic resin> (1) Refractive index (nD)
- one of the characteristics of the thermoplastic resin is that it has a high refractive index. is more preferable, and 1.65 to 1.68 is particularly preferable.
- the refractive index can be measured by the method described in Examples below.
- the Abbe number of the thermoplastic resin is preferably 15.0 to 26.0, more preferably 15.0 to 24.0, and 18.0 to 22.0. is particularly preferred. In the present invention, the Abbe number can be measured by the method described in Examples below.
- one of the characteristics of the thermoplastic resin is high heat resistance, and the glass transition temperature (Tg) is preferably 130 to 180 ° C., and at 135 to 170 ° C. It is more preferably 140 to 160°C, particularly preferably 140 to 160°C. In the present invention, the glass transition temperature can be measured by the method described in Examples below.
- the polystyrene equivalent weight average molecular weight of the thermoplastic resin is preferably 10,000 to 200,000, more preferably 10,000 to 100,000, and 10,000 to 80,000 is particularly preferred.
- thermoplastic resin composition Another embodiment of the invention is a thermoplastic resin composition comprising the thermoplastic resin described above and an additive.
- the thermoplastic resin composition of the present embodiment can be used in combination with a resin other than the thermoplastic resin of the present invention containing the above-described structural unit (A) within a range that does not impair the desired effects of the present embodiment.
- Such resins include, but are not limited to, polycarbonate resins, polyester resins, polyester carbonate resins, (meth)acrylic resins, polyamide resins, polystyrene resins, cycloolefin resins, acrylonitrile-butadiene-styrene copolymer resins, chloride At least one resin selected from the group consisting of vinyl resins, polyphenylene ether resins, polysulfone resins, polyacetal resins and methyl methacrylate-styrene copolymer resins can be used. Various known ones can be used as these, and they can be added to the thermoplastic resin composition singly or in combination of two or more.
- the thermoplastic resin composition preferably contains an antioxidant as the additive.
- an antioxidant it is preferable to contain at least one of a phenolic antioxidant and a phosphite antioxidant.
- phenolic antioxidants 1,3,5-tris(3,5-di-tert-butyl-4-hydroxyphenylmethyl)-2,4,6-trimethylbenzene, 1,3,5-tris(3 ,5-di-tert-butyl-4-hydroxybenzyl)-1,3,5-triazine e-2,4,6(1H,3H,5H)-trione, 4,4′,4′′-(1 -methylpropanyl-3-ylidene)tris(6-tert-butyl-m-cresol), 6,6'-di-tert-butyl-4,4'-butylidenedi-m-cresol, ocladecyl 3-(3, 5-di-tert-butyl-4-hydroxyphenyl)propionate, pentaery
- Phosphite antioxidants such as 2-ethylhexyldiphenylphosphite, isodecyldiphenylphosphite, triisodecylphosphite, triphenylphosphite, 3,9-bis(octadecyloxy)-2,4,8,10- Tetraoxy-3,9-diphosphaspiro[5.5]undecane, 3,9-bis(2,6-di-tert-butyl-4-methylphenoxy)-2,4,8,10-tetraoxa- 3,9-diphosphaspiro[5.5]undecane, 2,2′-methylenebis(4,6-di-tert-butylphenyl) 2-ethylhexylphosphite, tris(2,4-ditert-butylphenyl ) phosphite, tris(nonylphenyl)phosphite, tetra-C12-15-alky
- the antioxidant is preferably contained in an amount of 1 ppm to 3000 ppm by weight based on the total weight of the resin composition.
- the content of the antioxidant in the thermoplastic resin composition is more preferably 50 ppm to 2500 ppm by weight, more preferably 100 ppm to 2000 ppm by weight, and particularly preferably 150 ppm to 1500 ppm by weight. and more preferably 200 ppm to 1200 ppm by weight.
- the thermoplastic resin composition preferably contains a release agent as the additive.
- Ester compounds such as glycerin fatty acid esters such as mono- and diglycerides of glycerin fatty acid, glycol fatty acid esters such as propylene glycol fatty acid esters and sorbitan fatty acid esters, higher alcohol fatty acid esters, aliphatic polyhydric alcohols and aliphatic carboxylic acids are used as release agents. Full esters with acids, mono fatty acid esters, and the like can be mentioned. When an ester of an aliphatic polyhydric alcohol and an aliphatic carboxylic acid is used as the release agent, either a monoester, a full ester, or the like can be used.
- release agents include the following. Namely, sorbitan fatty acid esters such as sorbitan stearate, sorbitan laurate, sorbitan oleate, sorbitan trioleate, sorbitan tribehenate, sorbitan stearate, sorbitan tristearate, sorbitan caprylate; Propylene glycol fatty acid esters such as propylene glycol monostearate, propylene glycol monooleate, propylene glycol monobehenate, propylene glycol monolaurate, and propylene glycol monopalmitate; Higher alcohol fatty acid esters such as stearyl stearate; Glycerin monostearate, glycerin mono-12-hydroxystearate, etc.
- sorbitan fatty acid esters such as sorbitan stearate, sorbitan laurate, sorbitan oleate, sorbitan trioleate, sorbitan tribehenate, sorbitan stea
- the release agent is preferably contained in an amount of 1 ppm to 5000 ppm by weight based on the total weight of the resin composition.
- the content of the release agent in the thermoplastic resin composition is more preferably 50 wt ppm to 4000 wt ppm, still more preferably 100 wt ppm to 3500 wt ppm, and particularly preferably 500 wt ppm to 13000 wt ppm. and more preferably 1000 ppm to 2500 ppm by weight.
- additives may be added to the thermoplastic resin composition in addition to the antioxidant and release agent described above.
- additives that may be contained in the thermoplastic resin composition include compounding agents, catalyst deactivators, heat stabilizers, plasticizers, fillers, ultraviolet absorbers, rust inhibitors, dispersants, antifoaming agents, leveling agents, Examples include flame retardants, lubricants, dyes, pigments, bluing agents, nucleating agents, and clarifying agents.
- the content of additives other than antioxidants and release agents in the thermoplastic resin composition is preferably 10 wt ppm to 5.0 wt %, more preferably 100 wt ppm to 2.0 wt %. and more preferably 1000 ppm by weight to 1.0% by weight, but not limited thereto.
- the above additives may adversely affect the transmittance and should not be added in excess, eg the total amount added is within the above range.
- thermoplastic resin composition containing a modifier represented by the following general formula (1) and a thermoplastic resin.
- a modifier represented by the following general formula (1) has the same meaning as in general formula (1) described above. That is, the monomer represented by general formula (1) can also be used as a modifier.
- the above mass ratio may preferably be from 99:1 to 70:30, more preferably from 98:2 to 70:30, for example 99:1, 98:2, 97:3, 96: 4, 95:5, 94:6, 93:7, 92:8, 91:9, 90:10, 85:15, 80:20, 75:25, 70:30, and the like.
- the mass ratio of the thermoplastic resin to the modifier is within the above range, it is possible to provide a resin composition with high fluidity and good moldability.
- thermoplastic resin or thermoplastic resin composition (hereinafter simply referred to as "resin composition") of the present invention can be suitably used for optical members.
- An embodiment of the present invention provides an optical member containing the resin composition of the present invention.
- optical members include optical discs, transparent conductive substrates, optical cards, sheets, films, optical fibers, lenses, prisms, optical films, substrates, optical filters, hard coat films, etc. It is not limited to these.
- the resin composition of the present invention has a high fluidity and can be molded by a casting method, so it is particularly suitable for manufacturing thin optical members.
- the optical member produced using the resin composition of the present invention may be an optical lens.
- the optical member produced using the resin composition of the present invention may be an optical film.
- an optical member containing the resin composition of the present invention is produced by injection molding, it is preferable to perform molding under the conditions of a cylinder temperature of 260 to 350°C and a mold temperature of 90 to 170°C. More preferably, molding is carried out under conditions of a cylinder temperature of 270 to 320°C and a mold temperature of 100 to 160°C. If the cylinder temperature is higher than 350°C, the resin composition will decompose and color, and if it is lower than 260°C, the melt viscosity will be high and molding will be difficult. Moreover, when the mold temperature is higher than 170° C., it tends to be difficult to remove the molded piece made of the resin composition from the mold.
- the mold temperature is less than 90° C.
- the resin will harden too quickly in the mold during molding, making it difficult to control the shape of the molded piece, or the mold applied to the mold will not be sufficiently transferred. It is easy to become difficult.
- the resin composition can be suitably used for optical lenses.
- Optical lenses manufactured using the resin composition of the present invention have a high refractive index and excellent heat resistance, so conventionally, expensive high refractive index glass lenses have been used for telescopes, binoculars, television projectors, and the like. It can be used in various fields and is extremely useful.
- R 1 and R 2 each independently represent a hydrogen atom, a methyl group or an ethyl group
- R 3 and R 4 each independently represent a hydrogen atom, a methyl group, an ethyl group or a represents an alkylene glycol of ⁇ 5.
- Raaa and Rbbb each independently represents a hydrogen atom, a halogen atom, an optionally substituted alkyl group having 1 to 20 carbon atoms, an optionally substituted carbon number 1 to 20 alkoxyl groups, optionally substituted C5 to C20 cycloalkyl groups, optionally substituted C5 to C20 cycloalkoxyl groups, optionally substituted an aryl group having 6 to 20 carbon atoms, an optionally substituted heteroaryl group having 6 to 20 carbon atoms containing one or more hetero ring atoms selected from O, N and S, a substituent an aryloxy group having 6 to 20 carbon atoms which may have;
- a lens molded from a resin containing a structural unit derived from any of the monomers of the above formulas can be superimposed and used as a lens unit.
- the optical lens of the present invention is preferably implemented in the form of an aspherical lens if necessary.
- Aspherical lenses can eliminate spherical aberration with a single lens, so there is no need to combine multiple spherical lenses to remove spherical aberration, which helps reduce weight and molding costs. be possible. Therefore, aspherical lenses are particularly useful as camera lenses among optical lenses.
- the optical lens of the present invention is particularly useful as a material for thin, compact, and complicated-shaped optical lenses because of its high molding fluidity.
- the thickness of the central portion is preferably 0.05 to 3.0 mm, more preferably 0.05 to 2.0 mm, still more preferably 0.1 to 2.0 mm.
- the diameter is preferably 1.0 mm to 20.0 mm, more preferably 1.0 to 10.0 mm, still more preferably 3.0 to 10.0 mm.
- the lens is a meniscus lens having a convex surface on one side and a concave surface on the other side.
- the optical lens of the present invention can be molded by any method such as mold molding, cutting, polishing, laser processing, electrical discharge machining, and etching. Among these, mold molding is more preferable from the viewpoint of manufacturing cost.
- the resin composition can be suitably used for optical films.
- the optical film produced using the polycarbonate resin of the present invention is excellent in transparency and heat resistance, and thus is suitably used for films for liquid crystal substrates, optical memory cards, and the like.
- the molding environment must naturally be a low-dust environment, preferably class 6 or less, more preferably class 5 or less.
- refractive index (nD) Based on JIS B 7071-2: 2018, polycarbonate resin was molded to obtain a V block and used as a test piece. Measurement was performed at 23° C. with a refractometer (KPR-3000 manufactured by Shimadzu Corporation).
- Tg Glass transition temperature
- weight average molecular weight The weight average molecular weight of the resin was measured by a gel permeation chromatography (GPC) method and calculated in terms of standard polystyrene.
- GPC gel permeation chromatography
- ⁇ GPC device HLC-8420GPC manufactured by Tosoh Corporation ⁇ Column: TSKgel SuperHM-M ⁇ 3 manufactured by Tosoh Corporation TSKgel guard column SuperH-H ⁇ 1 manufactured by Tosoh Corporation TSKgel SuperH-RC ⁇ 1 manufactured by Tosoh Corporation ⁇ Detector: RI detector ⁇ Standard polystyrene: standard polystyrene kit PStQuick C manufactured by Tosoh Corporation ⁇ Sample solution: 0.2 mass% tetrahydrofuran solution ⁇ Eluent: tetrahydrofuran ⁇ Eluent flow rate: 0.6 mL/min ⁇ Column temperature: 40°C
- BINOL-DBAL (([1,1'-binaphthalene]-2,2'-diylbis(oxy))bis(4,1-phenylene))dimethanol (hereinafter referred to as "BINOL-DBAL”) represented by the following structural formula 7.50 kg (15.04 mol) of 9,9-bis[4-(2-hydroxyethoxy)phenyl]fluorene represented by the following structural formula (hereinafter referred to as "BPEF”) of 6.60 kg (15.04 mol) ), 6.64 kg (30.99 mol) of diphenyl carbonate (hereinafter referred to as "DPC”), and 12 ml of 2.5 ⁇ 10 ⁇ 2 mol/liter aqueous sodium hydrogen carbonate solution (3.0 ⁇ 10 ⁇ 4 mol, i.e.
- BPEF 9,9-bis[4-(2-hydroxyethoxy)phenyl]fluorene represented by the following structural formula (hereinafter referred to as "BPEF”) of 6.60 kg (15.04 mol)
- BINOL-2EO 2,2'-bis(2-hydroxyethoxy)-1,1'-binaphthalene represented by the following structural formula, 7.03 kg (16.02 mol) of 9,9-bis[4-(2-hydroxyethoxy)phenyl]fluorene (“BPEF”) of the formula, 7.07 kg (33.01 mol) of diphenyl carbonate (“DPC”), and 13 milliliters of a 2.5 ⁇ 10 ⁇ 2 mol/liter sodium hydrogen carbonate aqueous solution (3.2 ⁇ 10 ⁇ 4 mol, that is, 10 ⁇ 10 ⁇ 6 mol per 1 mol of the total dihydroxy compound) was used. Except for this, a polycarbonate resin was obtained in the same manner as in Example 1. The physical properties of the obtained polycarbonate resin are shown in Table 1 below.
- Example 2 Polycarbonate resins of Examples 2 to 6 were obtained in the same manner as in Example 1, except that the raw materials shown in Table 1 were used in the amounts shown in Table 1. The physical properties of the obtained polycarbonate resin are shown in Table 1 below.
- BINOL-DBALo (([1,1'-binaphthalene]-2,2'-diylbis(oxy))bis(3,1-phenylene))dimethanol
- DPBHBNA 6,6'-diphenyl-2,2'-bis-(2-hydroxyethoxy)-1,1'-binaphthyl
- the mixture was heated to 205° C. over 1 hour and stirred. After the raw materials were completely dissolved, the degree of pressure reduction was adjusted to 300 Torr over 15 minutes, and the conditions were maintained at 205° C. and 300 Torr for 90 minutes to carry out the transesterification reaction. Further, the temperature was raised to 240° C. at a rate of 37.5° C./hr and held at 240° C. and 300 Torr for 10 minutes. After that, it was adjusted to 150 Torr over 10 minutes and held at 240° C. and 150 Torr for 1 hour. After that, it was adjusted to 100 Torr over 20 minutes and held at 240° C. and 100 Torr for 10 minutes.
- the temperature was lowered to 1 Torr or less over 40 minutes, and the polymerization reaction was carried out under the conditions of 240° C. and 1 Torr with stirring for 10 minutes. After completion of the reaction, nitrogen was blown into the reactor to pressurize it, and the produced polyester carbonate resin was extracted while being pelletized to obtain a polyester carbonate resin.
- the physical properties of the obtained polyester carbonate resin are shown in Table 1 below.
- Example 8 A polyester carbonate resin of Example 8 was obtained in the same manner as in Example 7 except that the raw materials shown in Table 1 were used in the amounts shown in Table 1.
- the physical properties of the obtained polycarbonate resin are shown in Table 1 below. From the results in Table 1, Examples 1 to 8 using the monomer represented by the general formula (1) have a higher glass transition temperature than Comparative Example 1 that does not use the monomer, and have not only optical properties but also heat resistance. It can be seen that a thermoplastic resin having excellent properties can be obtained.
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Abstract
Description
<1> 下記一般式(1)で表されるモノマー由来の構成単位(A)を含む熱可塑性樹脂である。
R1~R12、Rk及びRpは、それぞれ独立に、水素原子、フッ素原子、塩素原子、臭素原子、ヨウ素原子、炭素数5~20のシクロアルキル基、炭素数5~20のシクロアルコキシル基、炭素数6~20のアリール基、炭素数1~10の直鎖状若しくは分岐状のアルキル基、炭素数2~10のアルケニル基、炭素数1~10のアルコキシ基、O、N及びSから選択される1つ以上のヘテロ環原子を含む炭素数6~20のヘテロアリール基、又は炭素数7~20のアラルキル基を表し、
X及びYは、単結合又は炭素数1~5のアルキレン基を表し、i及びiiは、それぞれ独立に0~4の整数を表し、K1及びK2は、それぞれ独立に、-OH、-COOH又は-COORqを表し、Rqは、炭素数1~5のアルキル基を表す。)
<2> ポリカーボネート樹脂、ポリエステル樹脂、又はポリエステルカーボネート樹脂である、上記<1>に記載の熱可塑性樹脂である。
<3> 前記一般式(1)におけるR1~R12、Rk及びRpが水素原子を表し、X及びYがメチレン基を表し、K1及びK2が-OHを表す、上記<1>又は<2>に記載の熱可塑性樹脂である。
<4> 前記一般式(1)におけるR1~R12、Rk及びRpが水素原子を表し、X及びYが単結合を表し、K1及びK2が-COOH又は-COORqを表し、Rqは、炭素数1~5のアルキル基を表す、上記<1>又は<2>に記載の熱可塑性樹脂である。
<5> 前記熱可塑性樹脂が、下記一般式(2)で表されるモノマー由来の構成単位(B)及び/又は下記一般式(3)で表されるモノマー由来の構成単位(C)を含む、上記<1>から<4>のいずれかに記載の熱可塑性樹脂である。
Ra及びRbは、それぞれ独立に、水素原子、ハロゲン原子、置換基を有してもよい炭素数1~20のアルキル基、置換基を有してもよい炭素数1~20のアルコキシル基、置換基を有してもよい炭素数5~20のシクロアルキル基、置換基を有してもよい炭素数5~20のシクロアルコキシル基、置換基を有してもよい炭素数6~20のアリール基、O、N及びSから選択される1つ以上のヘテロ環原子を含む、置換基を有してもよい炭素数6~20のヘテロアリール基、置換基を有してもよい炭素数6~20のアリールオキシ基、及び、-C≡C-Rhからなる群より選択され、
Rhは置換基を有してもよい炭素数6~20のアリール基、又は、O、N及びSから選択される1つ以上のヘテロ環原子を含む、置換基を有してもよい炭素数6~20のヘテロアリール基を表し、
Xは、単結合であるか、又は置換基を有してもよいフルオレン基を表し、
A及びBは、それぞれ独立に、置換基を有してもよい炭素数1~5のアルキレン基を表し、
m及びnは、それぞれ独立に、0~6の整数を表し、
a及びbは、それぞれ独立に、0~10の整数を表す。)
Rc及びRdは、それぞれ独立に、水素原子、ハロゲン原子、置換基を有してもよい炭素数1~20のアルキル基、置換基を有してもよい炭素数1~20のアルコキシル基、置換基を有してもよい炭素数5~20のシクロアルキル基、置換基を有してもよい炭素数5~20のシクロアルコキシル基、及び、置換基を有してもよい炭素数6~20のアリール基からなる群より選択され、
Y1は、単結合、置換基を有してもよいフルオレン基、又は下記式(4)~(11)で表される構造式のうちいずれかであり、
R61、R62、R71及びR72は、それぞれ独立して、水素原子、ハロゲン原子、置換基を有してもよい炭素数1~20のアルキル基、又は、置換基を有してもよい炭素数6~30のアリール基を表すか、あるいは、R61及びR62、又はR71及びR72が互いに結合して形成する、置換基を有してもよい炭素数1~20の炭素環又は複素環を表し、Raa及びRbbは、上記一般式(2)におけるRa及びRbと同義であり、
r及びsは、それぞれ独立して、0~5000の整数を表す。)
A及びBは、それぞれ独立に、置換基を有してもよい炭素数1~5のアルキレン基を表し、
p及びqは、それぞれ独立に、0~4の整数を表し、
a及びbは、それぞれ独立に、0~10の整数を表す。)
<6> 前記熱可塑性樹脂が、少なくとも、BPEF,BNE,BNEF及びDPBHBNAのいずれかに由来する構成単位を含む、上記<5>に記載の熱可塑性樹脂である。
<7> 前記熱可塑性樹脂が、更に、下記のモノマー群から選択される少なくとも一つのモノマーに由来する構成単位を含む、上記<1>から<6>のいずれかに記載の熱可塑性樹脂である。
<8> 前記熱可塑性樹脂のポリスチレン換算の重量平均分子量(Mw)が、10,000~200,000である、上記<1>から<7>のいずれかに記載の熱可塑性樹脂である。
<9> 前記熱可塑性樹脂の屈折率(nD)が、1.64~1.70である、上記<1>から<8>のいずれかに記載の熱可塑性樹脂である。
<10> 前記熱可塑性樹脂のアッベ数(ν)が、15.0~24.0である、上記<1>から<9>のいずれかに記載の熱可塑性樹脂である。
<11> 前記熱可塑性樹脂のガラス転移温度が、130~180℃である、上記<1>から<10>のいずれかに記載の熱可塑性樹脂である。
<12> 下記一般式(1)で表される改質剤と熱可塑性樹脂とを含む、熱可塑性樹脂組成物である。
R1~R12、Rk及びRpは、それぞれ独立に、水素原子、フッ素原子、塩素原子、臭素原子、ヨウ素原子、炭素数5~20のシクロアルキル基、炭素数5~20のシクロアルコキシル基、炭素数6~20のアリール基、炭素数1~10の直鎖状若しくは分岐状のアルキル基、炭素数2~10のアルケニル基、炭素数1~10のアルコキシ基、O、N及びSから選択される1つ以上のヘテロ環原子を含む炭素数6~20のヘテロアリール基、又は炭素数7~20のアラルキル基を表し、
X及びYは、単結合又は炭素数1~5のアルキレン基を表し、i及びiiは、それぞれ独立に0~4の整数を表し、K1及びK2は、それぞれ独立に、-OH、-COOH又は-COORqを表し、Rqは、炭素数1~5のアルキル基を表す。)
<13> 上記<1>から<11>のいずれかに記載の熱可塑性樹脂又は上記<12>に記載の熱可塑性樹脂組成物を含む、光学部材である。
<14> 上記<1>から<11>のいずれかに記載の熱可塑性樹脂又は上記<12>に記載の熱可塑性樹脂組成物を含む、光学レンズである。
<15> 上記<1>から<11>のいずれかに記載の熱可塑性樹脂又は上記<12>に記載の熱可塑性樹脂組成物を含む、光学フィルムである。
本発明の一実施形態は、下記一般式(1)で表されるモノマー由来の構成単位(A)を含む熱可塑性樹脂である。
R1~R12、Rk及びRpは、それぞれ独立に、水素原子、フッ素原子、塩素原子、臭素原子、ヨウ素原子、炭素数5~20(好ましくは5~10、より好ましくは6~8)のシクロアルキル基、炭素数5~20(好ましくは5~10)のシクロアルコキシル基、炭素数6~20(好ましくは6~12、より好ましくは6~10)のアリール基、炭素数1~10(好ましくは1~4、より好ましくは1~3、特に好ましくは1~2)の直鎖状若しくは分岐状のアルキル基、炭素数2~10(好ましくは2~5)のアルケニル基、炭素数1~10(好ましくは1~5)のアルコキシ基、O、N及びSから選択される1つ以上のヘテロ環原子を含む炭素数6~20(好ましくは6~15、より好ましくは6~12、特に好ましくは6~10)のヘテロアリール基、又は炭素数7~20(好ましくは7~10)のアラルキル基を表す。
R1~R12、Rk及びRpは、好ましくは、それぞれ独立に、水素原子、メチル基、又はフェニル基を表し、より好ましくは、R1~R12、Rk及びRpのすべてが、水素原子を表す。
X及びYは、単結合又は炭素数1~5(好ましくは1~3)のアルキレン基を表し、好ましくは、単結合、メチレン基、又はエチレン基を表し、より好ましくは、単結合又はメチレン基を表す。
i及びiiは、それぞれ独立に0~4の整数を表し、好ましくは0~2の整数を表す。
K1及びK2は、それぞれ独立に、-OH、-COOH又は-COORqを表し、Rqは、炭素数1~5(好ましくは1~3)のアルキル基を表す。Rqは、好ましくは、メチル基、エチル基又はプロピル基を表し、より好ましくはメチル基を表す。
また、一般式(1)におけるR1~R12、Rk及びRpが水素原子を表し、X及びYが単結合を表し、K1及びK2が-COOH又は-COORqを表し、Rqが、炭素数1~5(好ましくは1~3)のアルキル基を表す態様も好ましい。
つまり、本発明の一実施形態の熱可塑性樹脂は、上記式で表される構成単位(A)以外にも、一般的にポリカーボネート樹脂やポリエステルカーボネート樹脂の構成単位として用いられる脂肪族ジヒドロキシ化合物から誘導される構成単位や芳香族ジヒドロキシ化合物から誘導される構成単位を含むことができる。
具体的には、脂肪族ジヒドロキシ化合物としては、様々なものが挙げられるが、特に、1,4-シクロヘキサンジメタノール、トリシクロデカンジメタノール、1,3-アダマンタンジメタノール、2,2-ビス(4-ヒドロキシシクロヘキシル)-プロパン、3,9-ビス(2-ヒドロキシ-1,1-ジメチルエチル)-2,4,8,10-テトラオキサスピロ[5.5]ウンデカン、2-(5-エチル-5-ヒドロキシメチル-1,3-ジオキサン-2-イル)-2-メチルプロパン-1-オール、イソソルビド、1,3-プロパンジオール、1,4-ブタンジオール、1,6-ヘキサンジオール等が挙げられる。
芳香族ジヒドロキシ化合物としては、様々なものを挙げることができるが、特に2,2-ビス(4-ヒドロキシフェニル)プロパン〔ビスフェノールA〕、ビス(4-ヒドロキシフェニル)メタン、1,1-ビス(4-ヒドロキシフェニル)エタン、2,2-ビス(4-ヒドロキシ-3,5-ジメチルフェニル)プロパン、4,4’-ジヒドロキシジフェニル、ビス(4-ヒドロキシフェニル)シクロアルカン、ビス(4-ヒドロキシフェニル)オキシド、ビス(4-ヒドロキシフェニル)スルフィド、ビス(4-ヒドロキシフェニル)スルホン、ビス(4-ヒドロキシフェニル)スルホキシド、及びビス(4-ヒドロキシフェニル)ケトン、ビスフェノキシエタノールフルオレン等を挙げることができる。
Ra及びRbは、好ましくは、水素原子、置換基を有してもよい炭素数6~20のアリール基、O、N及びSから選択される1つ以上のヘテロ環原子を含む、置換基を有してもよい炭素数6~20のヘテロアリール基であり、より好ましくは、水素原子、置換基を有してもよい炭素数6~20のアリール基であり、さらに好ましくは、水素原子、置換基を有してもよい炭素数6~12のアリール基である。
一般式(2)において、A及びBは、それぞれ独立に、置換基を有してもよい炭素数1~5のアルキレン基であり、好ましくは、炭素数2又は3のアルキレン基である。
一般式(2)において、m及びnは、それぞれ独立に、0~6の整数であり、好ましくは0~3の整数であり、より好ましくは0又は1である。
一般式(2)において、a及びbは、それぞれ独立に、0~10の整数であり、好ましくは1~3の整数であり、より好ましくは1又は2である。
Rc及びRdは、好ましくは、水素原子、置換基を有してもよい炭素数6~20のアリール基、O、N及びSから選択される1つ以上のヘテロ環原子を含む、置換基を有してもよい炭素数6~20のヘテロアリール基であり、より好ましくは、水素原子、置換基を有してもよい炭素数6~20のアリール基であり、さらに好ましくは、水素原子、置換基を有してもよい炭素数6~12のアリール基である。
式(4)~(11)において、r及びsは、それぞれ独立して、0~5000の整数である。
式(I-3)の繰り返し単位数は、1~10の整数であり、好ましくは1~5の整数であり、より好ましくは1である。)
また、複数の種類の構成単位を有するポリマーとして、m及びnの値が例えば100以上と大きいブロック共重合体、及び、ランダム共重合体のいずれもが採用できるものの、ランダム共重合体が好ましく、より好ましくは、m及びnの値が1であるランダム共重合体が用いられる。
また、複数の種類の構成単位を有するポリマーとして、m及びnの値が例えば100以上と大きいブロック共重合体、及び、ランダム共重合体のいずれもが採用できるものの、ランダム共重合体が好ましく、より好ましくは、m及びnの値が1であるランダム共重合体が用いられる。
共重合体において、構成単位(B)と構成単位(C)とのモル比は、1:99~99:1であることが好ましく、10:90~90:10であることがより好ましく、15:85~85:15であることがさらに好ましく、30:70~70:30であることが特に好ましい。また、混合物においては、構成単位(B)を有するポリマーと構成単位(C)を有するポリマーとの質量比が、1:99~99:1であることが好ましく、10:90~90:10であることがより好ましく、15:85~85:15であることがさらに好ましく、30:70~70:30であることが特に好ましい。
不純物であるフェノール系化合物などのアルコール系化合物や炭酸ジエステルは、成形体としたときの強度低下や、臭気発生の原因ともなり得るため、これらの含有量は極力少ない程好ましい。
残存するジオール成分の含有量は、ポリカーボネート樹脂100質量%に対して、好ましくは1000質量ppm以下、より好ましくは100質量ppm以下、特に好ましくは10質量ppm以下である。
残存する炭酸ジエステルの含有量は、ポリカーボネート樹脂100質量%に対して、好ましくは1000質量ppm以下、より好ましくは100質量ppm以下、特に好ましくは10質量ppm以下である。
特に、フェノール、t-ブチルフェノールなどの化合物の含有量が、少ないことが好ましく、これらの化合物が上記範囲内であることが好ましい。
ポリカーボネート樹脂中に残存するアルコール系化合物の含有量についても、ポリカーボネート樹脂から抽出したアルコール系化合物を、ガスクロマトグラフィーを用いて分析する手法により測定することができる。
ポリカーボネート樹脂中に残存するジオール成分、炭酸ジエステルの含有量も、ポリカーボネート樹脂からこれらの化合物を抽出し、ガスクロマトグラフィーを用いて分析する手法により測定することができる。
残存するアルコール系化合物の含有量は、ポリカーボネート樹脂100質量%に対して、例えば、0.01質量ppm以上、0.1質量ppm以上、又は1質量ppm以上であってもよい。
(1)屈折率(nD)
本発明の一実施形態において、熱可塑性樹脂は高屈折率であることが特徴の一つであり、屈折率は、1.64~1.70であることが好ましく、1.64~1.69であることがより好ましく、1.65~1.68であることが特に好ましい。本発明において屈折率は、後述する実施例に記載の方法で測定することができる。
本発明の一実施形態において、熱可塑性樹脂のアッベ数は、15.0~26.0であることが好ましく、15.0~24.0であることがより好ましく、18.0~22.0であることが特に好ましい。本発明においてアッベ数は、後述する実施例に記載の方法で測定することができる。
本発明の一実施形態において、熱可塑性樹脂は、高耐熱性であることが特徴の一つであり、ガラス転移温度(Tg)は、130~180℃であることが好ましく、135~170℃であることがより好ましく、140~160℃であることが特に好ましい。本発明においてガラス転移温度は、後述する実施例に記載の方法で測定することができる。
本発明の一実施形態において、熱可塑性樹脂のポリスチレン換算重量平均分子量は、10,000~200,000であることが好ましく、10,000~100,000であることがより好ましく、10,000~80,000であることが特に好ましい。
本発明の別の実施形態は、上述した熱可塑性樹脂と添加剤とを含む熱可塑性樹脂組成物である。本実施形態の熱可塑性樹脂組成物は、本実施形態の所望とする効果を損なわない範囲で、上述した構成単位(A)を含む本発明の熱可塑性樹脂以外の樹脂を併用することができる。そのような樹脂としては、特に限定されないが、例えば、ポリカーボネート樹脂、ポリエステル樹脂、ポリエステルカーボネート樹脂、(メタ)アクリル樹脂、ポリアミド樹脂、ポリスチレン樹脂、シクロオレフィン樹脂、アクリロニトリル-ブタジエン-スチレン共重合樹脂、塩化ビニル樹脂、ポリフェニレンエーテル樹脂、ポリスルホン樹脂、ポリアセタール樹脂及びメチルメタクリレート-スチレン共重合樹脂からなる群より選択される少なくとも1つの樹脂が挙げられる。これらは種々既知のものを用いることができ、1種を単独で又は2種以上を併用して熱可塑性樹脂組成物に加えることができる。
熱可塑性樹脂組成物は、上記添加剤として酸化防止剤を含むことが好ましい。
酸化防止剤として、フェノール系酸化防止剤及びホスファイト系酸化防止剤の少なくとも一方を含むことが好ましい。
フェノール系酸化防止剤として、1,3,5-トリス(3,5-ジ-tert-ブチル-4-ヒドロキシフェニルメチル)-2,4,6-トリメチルベンゼン、1,3,5-トリス(3,5-ジ-tert-ブチル-4-ヒドロキシベンジル)-1,3,5-トリアジンe-2,4,6(1H,3H,5H)-トリオン、4,4’,4’’-(1-メチルプロパニル-3-イリデン)トリス(6-tert-ブチル-m-クレゾール)、6,6’-ジ-tert-ブチル-4,4’-ブチリデンジ-m-クレゾール、オクラデシル3-(3,5-ジ-tert-ブチル-4-ヒドロキシフェニル)プロピオネート、ペンタエリスリトール-テトラキス[3-(3,5-ジ-tert-ブチル-4-ヒドロキシフェニル)プロピオネート]、3,9-ビス{2-[3-(3-tert-ブチル-4-ヒドロキシ-5-メチルフェニル)プロピオニルオキシ]-1,1-ジメチルエチル}-2,4,8,10-テトラオキソスピロ[5.5]ウンデカン、ペンタエリスリトール-テトラキス[3-(3,5-ジ-tert-ブチル-4-ヒドロキシフェニル)プロピオネート]等が挙げられ、好ましくは、ペンタエリスリトール-テトラキス[3-(3,5-ジ-tert-ブチル-4-ヒドロキシフェニル)プロピオネート]である。
ホスファイト系酸化防止剤として、2-エチルヘキシルジフェニルフォスファイト、イソデシルジフェニルフォスファイト、トリイソデシルフォスファイト、トリフェニルフォスファイト、3,9-ビス(オクタデシルオキシ)-2,4,8,10-テトラオキシ-3,9-ジフォスファスピロ[5.5]ウンデカン、3,9-ビス(2,6-ジ-tert-ブチル-4-メチルフェノキシ)-2,4,8,10-テトラオキサ-3,9-ジフォスファスピロ[5.5]ウンデカン、2,2’-メチルエンビス(4,6-ジ-tert-ブチルフェニル)2-エチルヘキシルフォスファイト、トリス(2,4-ジtert-ブチルフェニル)フォスファイト、トリス(ノニルフェニル)フォスファイト、テトラ-C12-15-アルキル(プロパン-2,2-ジイルビス(4,1-フェニルエン))ビス(フォスファイト)、3,9-ビス(2,6-ジ-tert-ブチル-4-メチルフェノキシ)-2,4,8,10-テトラオキサ-3,9-ジフォスファスピロ[5.5]ウンデカン等が挙げられ、好ましくは、3,9-ビス(2,6-ジ-tert-ブチル-4-メチルフェノキシ)-2,4,8,10-テトラオキサ-3,9-ジフォスファスピロ[5.5]ウンデカンである。
酸化防止剤として、上述のいずれか1種類のみを用いても、2種類以上の混合物を用いてもよい。
熱可塑性樹脂組成物は、上記添加剤として離型剤を含むことが好ましい。
離型剤として、エステル化合物、例えば、グリセリン脂肪酸のモノ・ジグリセリド等のグリセリン脂肪酸エステル、プロピレングリコール脂肪酸エステル、ソルビタン脂肪酸エステル等のグリコール脂肪酸エステル、高級アルコール脂肪酸エステル、脂肪族多価アルコールと脂肪族カルボン酸とのフルエステルあるいはモノ脂肪酸エステル等が挙げられる。離型剤として、脂肪族多価アルコールと脂肪族カルボン酸とのエステルを用いる場合、モノエステル、フルエステル等、いずれも採用できるが、例えばモノエステル等のフルエステル以外であってもよい。
離型剤の具体例として、以下のものが挙げられる。
すなわち、ソルビタン ステアレート、ソルビタン ラウレート、ソルビタン オレート、ソルビタン トリオレート、ソルビタン トリベヘネート、ソルビタン ステアレート、ソルビタン トリステアレート、ソルビタン カプリレート等のソルビタン脂肪酸エステル;
プロピレングリコール モノステアレート、プロピレングリコール モノオレート、プロピレングリコール モノベヘネート、プロピレングリコール モノラウレート、プロピレングリコール モノパルミテート等のプロピレングリコール脂肪酸エステル;
ステアリル ステアレート等の高級アルコール脂肪酸エステル;
グリセリン モノステアレート、グリセリン モノ12-ヒドロキシステアレート等のグリセリン モノヒドロキシステアレート、グリセリン モノオレート、グリセリン モノベヘネート、グリセリン モノカプリレート、グリセリン モノカプレート、グリセリン モノラウレート等のモノグリセライド:グリセリンモノ・ジステアレート、グリセリンモノ・ジステアレート、グリセリンモノ・ジベヘネート、グリセリンモノ・ジオレート等のモノ・ジグリセライド:を含む、グリセリン脂肪酸エステルモノグリセライド;
グリセリン ジアセトモノ ラウレート等のグリセリン脂肪酸エステルアセチル化モノグリセライド;
クエン酸脂肪酸 モノグリセライド、コハク酸脂肪酸 モノグリセライド、ジアセチル酒石酸脂肪酸 モノグリセライド等のグリセリン脂肪酸エステル有機酸モノグリセライド;
ジグリセリン ステアレート、ジグリセリン ラウレート、ジグリセリン オレート、ジグリセリン モノステアレート、ジグリセリン モノラウレート、ジグリセリン モノミリステート、ジグリセリン モノオレート、テトラグリセリン ステアレート、デカグリセリン ラウレート、デカグリセリン オレート、ポリグリセリン ポリリシノレート等のポリグリセリン脂肪酸エステル等が挙げられる。
熱可塑性樹脂組成物には、上述の酸化防止剤及び離型剤以外にも、その他の添加剤を加えてもよい。例えば、熱可塑性樹脂組成物が含み得る添加剤として、配合剤、触媒失活剤、熱安定剤、可塑剤、充填剤、紫外線吸収剤、防錆剤、分散剤、消泡剤、レベリング剤、難燃剤、滑剤、染料、顔料、ブルーイング剤、核剤、透明化剤等が挙げられる。
熱可塑性樹脂組成物における酸化防止剤及び離型剤以外のその他の添加剤の含有量は、好ましくは10重量ppm~5.0重量%であり、より好ましくは100重量ppm~2.0重量%であり、さらに好ましくは1000重量ppm~1.0重量%であるが、これには限定されない。
上述の添加剤は、透過率に悪影響を与える可能性があり、過剰に添加しないことが好ましく、例えば、合計の添加量は上述の範囲内である。
本発明の熱可塑性樹脂又は熱可塑性樹脂組成物(以下、単に「樹脂組成物」と略す)は、光学部材に好適に用いることができる。本発明の一実施形態において、本発明の樹脂組成物を含む光学部材が提供される。本発明の一実施形態において、光学部材には、光ディスク、透明導電性基板、光カード、シート、フィルム、光ファイバー、レンズ、プリズム、光学膜、基盤、光学フィルター、ハードコート膜等が含まれるが、これらに限定されない。本発明の樹脂組成物は、高流動でキャスト法による成形が可能であるため、特に薄型の光学部材の製造に好適である。本発明の好ましい実施形態において、本発明の樹脂組成物を用いて製造される光学部材は、光学レンズであってよい。本発明の別の好ましい実施形態において、本発明の樹脂組成物を用いて製造される光学部材は、光学フィルムであってよい。
本発明の一実施形態において、樹脂組成物は、光学レンズに好適に用いることができる。本発明の樹脂組成物を用いて製造される光学レンズは、高屈折率であり、耐熱性に優れるため、望遠鏡、双眼鏡、テレビプロジェクター等、従来、高価な高屈折率ガラスレンズが用いられていた分野に用いることができ、極めて有用である。
例えばスマートフォンのレンズでは、構成単位(A)を含む熱可塑性樹脂から成形されたレンズと、式(II-1)~(II-4)のいずれかの構成単位を含む樹脂、あるいは、
上記式のいずれかのモノマーに由来する構成単位を含む樹脂から成形されたレンズとを、重ね合わせてレンズユニットとして用いることができる。
本発明の光学レンズは、金型成形、切削、研磨、レーザー加工、放電加工、エッチングなど任意の方法により成形される。この中でも、製造コストの面から金型成形がより好ましい。
本発明の一実施形態において、樹脂組成物は、光学フィルムに好適に用いることができる。特に、本発明のポリカーボネート樹脂を用いて製造される光学フィルムは、透明性及び耐熱性に優れるため、液晶基板用フィルム、光メモリーカード等に好適に使用される。
光学フィルムへの異物の混入を極力避けるため、成形環境も当然低ダスト環境でなければならず、クラス6以下であることが好ましく、より好ましくはクラス5以下である。
JIS B 7071-2:2018に基づき、ポリカーボネート樹脂を成形してVブロックを得て試験片とした。23℃にて屈折率計(島津製作所製KPR-3000)で測定した。
屈折率測定で用いたものと同様の試験片(Vブロック)を用い、屈折率計を用い、23℃下での波長486nm、589nm、656nmの屈折率を測定し、下記式を用いてアッベ数を算出した。
ν=(nD-1)/(nF-nC)
nD:波長589nmでの屈折率
nC:波長656nmでの屈折率
nF:波長486nmでの屈折率
JIS K7121―1987に基づき示差熱走査熱量分析計(株式会社日立ハイテクサイエンス製 X-DSC7000)により、10℃/分の昇温プログラムにて測定した。
樹脂の重量平均分子量は、ゲル浸透クロマトグラフィー(GPC)法によって測定し、標準ポリスチレン換算で算出した。使用装置、カラム、及び測定条件は以下の通りである。
・GPC装置:東ソー(株)製、HLC-8420GPC
・カラム:東ソー(株)製、TSKgel SuperHM-M ×3本
東ソー(株)製、TSKgel guardcolumn SuperH-H ×1本
東ソー(株)製、TSKgel SuperH-RC ×1本
・検出器:RI検出器
・標準ポリスチレン:東ソー(株)製、標準ポリスチレンキット PStQuick C
・試料溶液:0.2質量%テトラヒドロフラン溶液
・溶離液:テトラヒドロフラン
・溶離液流速:0.6mL/min
・カラム温度:40℃
原料として、下記構造式で表される(([1,1'-ビナフタレン]-2,2'-ジイルビス(オキシ))ビス(4,1-フェニレン))ジメタノール(以下、“BINOL-DBAL”と称する)を7.50kg(15.04モル)、下記構造式で表される9,9-ビス[4-(2-ヒドロキシエトキシ)フェニル]フルオレン(以下、“BPEF”と称する)を6.60kg(15.04モル)、ジフェニルカーボネート(以下、“DPC”と称する)を6.64kg(30.99モル)、及び2.5×10-2モル/リットルの炭酸水素ナトリウム水溶液12ミリリットル(3.0×10-4モル、即ち、ジヒドロキシ化合物の合計1モルに対して、10×10-6モル)を攪拌機及び留出装置付きの50リットル反応器に入れ、窒素置換を行った後、窒素雰囲気760Torrの下、1時間かけて205℃に加熱し攪拌した。原料の完全溶解後、15分かけて減圧度を150Torrに調整し、205℃、150Torrの条件で20分保持し、エステル交換反応を行った。さらに37.5℃/hrの速度で240℃まで昇温し、240℃、150Torrで10分保持した。その後、10分かけて120Torrに調整し、240℃、120Torrで70分保持した。その後、10分かけて100Torrに調整し、240℃、100Torrで10分間保持した。さらに40分かけて1Torr以下とし、240℃、1Torrの条件下で10分間攪拌下重合反応を行った。反応終了後、反応器内に窒素を反応系に導入して加圧し、生成したポリカーボネート樹脂をペレタイズしながら抜き出し、ポリカーボネート樹脂を得た。得られたポリカーボネート樹脂の物性を下記表1に示す。
なお、一般式(1)で表されるモノマーである“BINOL-DBAL”は、Adv. Synth. Catal. 2004, 346, 195-198に記載の方法にて得た。
原料として、下記構造式で表される2,2’-ビス(2-ヒドロキシエトキシ)-1,1’-ビナフタレン(以下、“BINOL-2EO”と称する)を6.00kg(16.02モル)、上記構造式で表される9,9-ビス[4-(2-ヒドロキシエトキシ)フェニル]フルオレン(“BPEF”)を7.03kg(16.02モル)、ジフェニルカーボネート(“DPC”)を7.07kg(33.01モル)、及び2.5×10-2モル/リットルの炭酸水素ナトリウム水溶液13ミリリットル(3.2×10-4モル、即ち、ジヒドロキシ化合物の合計1モルに対して、10×10-6モル)を用いた以外は、実施例1と同様にポリカーボネート樹脂を得た。得られたポリカーボネート樹脂の物性を下記表1に示す。
原料として、表1に示す物を表1に示す量で用いた以外は、実施例1と同様にして実施例2~6のポリカーボネート樹脂を得た。得られたポリカーボネート樹脂の物性を下記表1に示す。
DPBHBNA:6,6’-ジフェニル-2,2’-ビス-(2-ヒドロキシエトキシ)-1,1’-ビナフチル
原料として、BINOL-DBALを8.33kg(16.71モル)、下記構造式で表される2,2'-(((9H-フルオレン-9,9-ジイル)ビス(ナフタレン-6,2-ジイル))ビス(オキシ))ビス(エタノール-1-オール) (以下、“NOLE”または“BNEF”と称する)を2.00kg(3.71モル)、下記構造式で表される1,1′-ビナフタレン-2,2′-ジイルビスオキシビス酢酸(以下、“BINOL-DC”と称する)を6.72kg(16.71モル)、DPCを0.96kg(4.47モル)、触媒としてアルミニウム(III)アセチルアセトナート1.41g (生成樹脂量に対するAl量が7ppm)及び(4-メチルベンジル)ホスホン酸ジエチル1.69ml (生成樹脂量に対するP量が14ppm)を攪拌機及び留出装置付きの50リットル反応器に入れ、窒素置換を行った後、窒素雰囲気760Torrの下、1時間かけて205℃に加熱し攪拌した。原料の完全溶解後、15分かけて減圧度を300Torrに調整し、205℃、300Torrの条件で90分保持し、エステル交換反応を行った。さらに37.5℃/hrの速度で240℃まで昇温し、240℃、300Torrで10分保持した。その後、10分かけて150Torrに調整し、240℃、150Torrで1時間保持した。その後、20分かけて100Torrに調整し、240℃、100Torrで10分間保持した。さらに40分かけて1Torr以下とし、240℃、1Torrの条件下で10分間攪拌下重合反応を行った。反応終了後、反応器内に窒素を吹き込み加圧し、生成したポリエステルカーボネート樹脂をペレタイズしながら抜き出し、ポリエステルカーボネート樹脂を得た。得られたポリエステルカーボネート樹脂の物性を下記表1に示す。
Claims (15)
- 下記一般式(1)で表されるモノマー由来の構成単位(A)を含む熱可塑性樹脂。
R1~R12、Rk及びRpは、それぞれ独立に、水素原子、フッ素原子、塩素原子、臭素原子、ヨウ素原子、炭素数5~20のシクロアルキル基、炭素数5~20のシクロアルコキシル基、炭素数6~20のアリール基、炭素数1~10の直鎖状若しくは分岐状のアルキル基、炭素数2~10のアルケニル基、炭素数1~10のアルコキシ基、O、N及びSから選択される1つ以上のヘテロ環原子を含む炭素数6~20のヘテロアリール基、又は炭素数7~20のアラルキル基を表し、
X及びYは、単結合又は炭素数1~5のアルキレン基を表し、i及びiiは、それぞれ独立に0~4の整数を表し、K1及びK2は、それぞれ独立に、-OH、-COOH又は-COORqを表し、Rqは、炭素数1~5のアルキル基を表す。) - ポリカーボネート樹脂、ポリエステル樹脂、又はポリエステルカーボネート樹脂である、請求項1に記載の熱可塑性樹脂。
- 前記一般式(1)におけるR1~R12、Rk及びRpが水素原子を表し、X及びYがメチレン基を表し、K1及びK2が-OHを表す、請求項1又は2に記載の熱可塑性樹脂。
- 前記一般式(1)におけるR1~R12、Rk及びRpが水素原子を表し、X及びYが単結合を表し、K1及びK2が-COOH又は-COORqを表し、Rqは、炭素数1~5のアルキル基を表す、請求項1又は2に記載の熱可塑性樹脂。
- 前記熱可塑性樹脂が、下記一般式(2)で表されるモノマー由来の構成単位(B)及び/又は下記一般式(3)で表されるモノマー由来の構成単位(C)を含む、請求項1から4のいずれかに記載の熱可塑性樹脂。
Ra及びRbは、それぞれ独立に、水素原子、ハロゲン原子、置換基を有してもよい炭素数1~20のアルキル基、置換基を有してもよい炭素数1~20のアルコキシル基、置換基を有してもよい炭素数5~20のシクロアルキル基、置換基を有してもよい炭素数5~20のシクロアルコキシル基、置換基を有してもよい炭素数6~20のアリール基、O、N及びSから選択される1つ以上のヘテロ環原子を含む、置換基を有してもよい炭素数6~20のヘテロアリール基、置換基を有してもよい炭素数6~20のアリールオキシ基、及び、-C≡C-Rhからなる群より選択され、
Rhは置換基を有してもよい炭素数6~20のアリール基、又は、O、N及びSから選択される1つ以上のヘテロ環原子を含む、置換基を有してもよい炭素数6~20のヘテロアリール基を表し、
Xは、単結合であるか、又は置換基を有してもよいフルオレン基を表し、
A及びBは、それぞれ独立に、置換基を有してもよい炭素数1~5のアルキレン基を表し、
m及びnは、それぞれ独立に、0~6の整数を表し、
a及びbは、それぞれ独立に、0~10の整数を表す。)
Rc及びRdは、それぞれ独立に、水素原子、ハロゲン原子、置換基を有してもよい炭素数1~20のアルキル基、置換基を有してもよい炭素数1~20のアルコキシル基、置換基を有してもよい炭素数5~20のシクロアルキル基、置換基を有してもよい炭素数5~20のシクロアルコキシル基、及び、置換基を有してもよい炭素数6~20のアリール基からなる群より選択され、
Y1は、単結合、置換基を有してもよいフルオレン基、又は下記式(4)~(11)で表される構造式のうちいずれかであり、
R61、R62、R71及びR72は、それぞれ独立して、水素原子、ハロゲン原子、置換基を有してもよい炭素数1~20のアルキル基、又は、置換基を有してもよい炭素数6~30のアリール基を表すか、あるいは、R61及びR62、又はR71及びR72が互いに結合して形成する、置換基を有してもよい炭素数1~20の炭素環又は複素環を表し、Raa及びRbbは、上記一般式(2)におけるRa及びRbと同義であり、
r及びsは、それぞれ独立して、0~5000の整数を表す。)
A及びBは、それぞれ独立に、置換基を有してもよい炭素数1~5のアルキレン基を表し、
p及びqは、それぞれ独立に、0~4の整数を表し、
a及びbは、それぞれ独立に、0~10の整数を表す。) - 前記熱可塑性樹脂が、少なくとも、BPEF,BNE,BNEF及びDPBHBNAのいずれかに由来する構成単位を含む、請求項5に記載の熱可塑性樹脂。
- 前記熱可塑性樹脂が、更に、下記のモノマー群から選択される少なくとも一つのモノマーに由来する構成単位を含む、請求項1から6のいずれかに記載の熱可塑性樹脂。
- 前記熱可塑性樹脂のポリスチレン換算の重量平均分子量(Mw)が、10,000~200,000である、請求項1から7のいずれかに記載の熱可塑性樹脂。
- 前記熱可塑性樹脂の屈折率(nD)が、1.64~1.70である、請求項1から8のいずれかに記載の熱可塑性樹脂。
- 前記熱可塑性樹脂のアッベ数(ν)が、15.0~26.0である、請求項1から9のいずれかに記載の熱可塑性樹脂。
- 前記熱可塑性樹脂のガラス転移温度が、130~180℃である、請求項1から10のいずれかに記載の熱可塑性樹脂。
- 下記一般式(1)で表される改質剤と熱可塑性樹脂とを含む、熱可塑性樹脂組成物。
R1~R12、Rk及びRpは、それぞれ独立に、水素原子、フッ素原子、塩素原子、臭素原子、ヨウ素原子、炭素数5~20のシクロアルキル基、炭素数5~20のシクロアルコキシル基、炭素数6~20のアリール基、炭素数1~10の直鎖状若しくは分岐状のアルキル基、炭素数2~10のアルケニル基、炭素数1~10のアルコキシ基、O、N及びSから選択される1つ以上のヘテロ環原子を含む炭素数6~20のヘテロアリール基、又は炭素数7~20のアラルキル基を表し、
X及びYは、単結合又は炭素数1~5のアルキレン基を表し、i及びiiは、それぞれ独立に0~4の整数を表し、K1及びK2は、それぞれ独立に、-OH、-COOH又は-COORqを表し、Rqは、炭素数1~5のアルキル基を表す。) - 請求項1から11のいずれかに記載の熱可塑性樹脂又は請求項12に記載の熱可塑性樹脂組成物を含む、光学部材。
- 請求項1から11のいずれかに記載の熱可塑性樹脂又は請求項12に記載の熱可塑性樹脂組成物を含む、光学レンズ。
- 請求項1から11のいずれかに記載の熱可塑性樹脂又は請求項12に記載の熱可塑性樹脂組成物を含む、光学フィルム。
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