WO2007132901A1 - ブロックコポリマー - Google Patents
ブロックコポリマー Download PDFInfo
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- WO2007132901A1 WO2007132901A1 PCT/JP2007/060076 JP2007060076W WO2007132901A1 WO 2007132901 A1 WO2007132901 A1 WO 2007132901A1 JP 2007060076 W JP2007060076 W JP 2007060076W WO 2007132901 A1 WO2007132901 A1 WO 2007132901A1
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- microphase
- block copolymer
- styrene
- separation structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F297/00—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
- C08F297/02—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type
- C08F297/026—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type polymerising acrylic acid, methacrylic acid or derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F297/00—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
- C08F297/02—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F212/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
- C08F212/02—Monomers containing only one unsaturated aliphatic radical
- C08F212/04—Monomers containing only one unsaturated aliphatic radical containing one ring
- C08F212/06—Hydrocarbons
- C08F212/12—Monomers containing a branched unsaturated aliphatic radical or a ring substituted by an alkyl radical
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F293/00—Macromolecular compounds obtained by polymerisation on to a macromolecule having groups capable of inducing the formation of new polymer chains bound exclusively at one or both ends of the starting macromolecule
- C08F293/005—Macromolecular compounds obtained by polymerisation on to a macromolecule having groups capable of inducing the formation of new polymer chains bound exclusively at one or both ends of the starting macromolecule using free radical "living" or "controlled" polymerisation, e.g. using a complexing agent
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/20—Manufacture of shaped structures of ion-exchange resins
- C08J5/22—Films, membranes or diaphragms
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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
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
Definitions
- the present invention relates to a block copolymer, and more particularly to a block copolymer that exhibits a microphase separation structure.
- Block copolymers are molded resin, adhesive 'adhesive, adhesive tape support, impact resistance improved resin, tackifier, dispersant, surface modifier, compatibilizer, separation membrane, elastic fiber, high It is being used or studied for applications such as molecular surfactants, pharmaceutical preparations, medical materials, antifouling paints, and super-water-repellent films.
- the micro phase separation structure of the block copolymer is used as a mask, the pattern is transferred and processed at the nanoscale, and recording devices such as flash memory, optical recording disk, hard disk, etc. (See, for example, Patent Document 1.) o
- the micro phase separation structure is used as a mask, so that the domain size of the phase separation structure can be arbitrarily controlled. Is desirable.
- the micro phase separation structure is a phenomenon seen in polymers having different molecular weights with a molecular weight distribution of tens of thousands or more, in which polymers having different polarities and incompatible with each other are combined in a block manner.
- Columnar structures and lamellar structures are known, and the domain size is about 10 to: LOOnm.
- This micro phase separation structure does not appear if the polarity difference between polymers of different polarities is too small, and conversely if it is too large, a macro phase separation structure appears instead of a micro phase separation structure. A difference is necessary.
- the domain structure in the mixture phase separation structure is determined by the composition ratio of the block copolymer, and the domain size is determined by the molecular weight of the block polymer.
- an intermediate layer called an interface layer exists around the domain of the microphase separation structure. It is also known. This interfacial layer tends to become larger as the polarity difference between polymers of different polarities is smaller.
- styrene Z methinomethacrylate block copolymer There is a styrene Z methinomethacrylate block copolymer.
- the interfacial layer of this styrene Z methylolene methacrylate block copolymer is relatively large. For example, if the size of the domain of the sea-island structure in which this block copolymer is expressed is about 20 nm or less, the molecular weight needs to be tens of thousands or less, but in this case, the microphase separation structure is almost observed.
- Patent Document 2 describes that a microphase separation structure is formed using a diblock copolymer in which a polystyrene chain and a polymethyl methacrylate chain are linked.
- the diblock copolymer used here has an average molecular weight of 65,000 (however, the mass average molecular weight or the number average molecular weight is unknown), and the proportion of polymethyl methacrylate chains in the copolymer is 20 wt% or 80 wt%. It is.
- the size (domain size) of the dot part of the microphase separation structure is the smallest, 30 nm.
- Patent Document 3 describes that a microphase-separated structure is formed using a diblock copolymer of polystyrene and polyisoprene.
- Non-Patent Documents 1 and 2 include microphases using triblock copolymers that also have polystyrene), poly (2-hydroxyethyl methacrylate) (H), and poly (methyl methacrylate) (M) forces.
- Mn number average molecular weight
- Mw / Mn l.
- a film having a number average molecular weight (Mn) of 134,000 is formed on a substrate and then heated at 190 ° C. for 5 days to develop a microphase separation structure. In this case, the dot size is about 20 nm.
- a mass average molecular weight or number average molecular weight is 50,000 or less and a clear microphase separation structure has been formed.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2003-258296
- Patent Document 2 Japanese Patent Laid-Open No. 2005-118936
- Patent Document 3 Japanese Patent Laid-Open No. 2006-327853
- Non-patent literature l Macromolucules 2001, 34, 7477— 7488
- Non-Patent Document 2 Macromolucules 2002, 35, 1319-1325
- An object of the present invention is to provide a block copolymer that can form a microphase-separated structure even with a small molecular weight, and that can form a microphase-separated structure with a small domain size.
- styrene Z (meth) acrylic acid ester block copolymer a part of the styrene-based repeating structure has a styrene power having a water-repellent group.
- a part of the repeating structure of (meth) acrylic acid ester has a repeating structure that also has (meth) acrylic acid and Z or polar group-containing (meth) acrylic acid ester power.
- the polarity difference of each block of the block copolymer can be adjusted moderately, whereby a microphase-separated structure can be formed even if the molecular weight is small, and the domain We found that it is possible to produce block copolymers that are small in size and capable of forming microphase-separated structures, which resulted in the completion of the invention.
- R is a hydrogen atom, a fluorine atom, a (R) Si group, a C linear, branched or cyclic alkyl group).
- n 1
- Each R is independently a linear, branched or cyclic alkyl of C.
- R represents a hydrogen atom or a linear alkyl group of C.
- R represents a hydrogen atom, C
- R 2 1-6 3 1 represents a linear, branched or cyclic alkyl group or an R (R) group.
- R is OH group, C linear, branched or cyclic alkylene group
- Cyclic alkyloxy group COOH group, COCH group, acetylethylacetone group, phosphate group, amino group
- R (R) is a combination of m R and R
- m represents an integer of 1 or more) and represents a segment which is a homopolymer or a random or block copolymer consisting of at least one repeating unit represented by C represents A, B or A—B.
- At least one segment of each A has a water repellent group, or at least one segment of each B has a polar group
- Block ⁇ polymer
- each A and each B may be composed of the same repeating unit. Or a block copolymer according to (1) above, which may have different repeating unit forces,
- microphase separation structure according to the above (3) or (4), wherein the microphase separation structure is a sea-island structural force having a domain size of 20 nm or less
- Block copolymer force A method for producing a microphase-separated structure according to (10) above, which contains a segment having a styrene-based repeating unit force,
- Block copolymer force The method for producing a microphase-separated structure according to any one of the above (10) force (12), which is a block copolymer represented by formula (I),
- FIG. 1 is a view showing a result of observing the surface of a substrate coated with the PStZP (MA / MMA) block copolymer of Example 1 and annealed in an atomic force microscope (AFM) phase mode.
- PStZP MA / MMA
- AFM atomic force microscope
- FIG. 2 is a diagram showing the results of observing the surface of a substrate coated with the PSt / P (MA / MMA) block copolymer of Example 2 and annealed in an atomic force microscope (AFM) phase mode.
- AFM atomic force microscope
- FIG. 3 is a diagram showing the results of observing the surface of a substrate coated with PStZP (HEMA / MMA) block copolymer of Example 3 and annealed in an atomic force microscope (AFM) phase mode.
- PStZP HEMA / MMA
- FIG. 4 is a view showing a result of observing the surface of a substrate coated with PStZP (HEMA / MMA) block copolymer of Example 4 and annealed in an atomic force microscope (AFM) phase mode.
- PStZP HEMA / MMA
- FIG. 5 is a diagram showing the results of observing the surface of a substrate coated with the PStZPMMA diblock copolymer of Comparative Example 1 in an atomic force microscope (AFM) phase mode.
- AFM atomic force microscope
- FIG. 6 is a diagram showing the result of observing the surface of a substrate coated with the PSt / P (MA / MMA) block copolymer of Comparative Example 2 in an atomic force microscope (AFM) phase mode.
- AFM atomic force microscope
- R is a hydrogen atom, fluorine atom, (R) Si group, C linear, branched or cyclic alkyl.
- R in the “(R 3) Si group” is each independently a linear, branched or cyclic alkyl group of C
- C 1 linear, branched or cyclic alkyl group means methyl, ethyl, propyl, iso
- Linear or branched alkyl groups such as propyl, butyl, isobutyl, sec butyl and tert butyl, pentyl, hexyl, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cyclopropylmethyl, cyclobutylmethyl, cyclopentyl Includes cyclic alkyl groups such as methyl.
- C aryl group refers to phenol, xylyl, 1-naphthyl, 2-naphthyl, biphenyl
- C aryl aryl group means benzyl, phenethyl, phenylpropyl, phenol
- Heterocyclic group includes thiophene 2-yl, thiophene-3 yl, furan-2 yl, furan-3-yl, pyrrole-1-yl, pyrrole-2-yl, imidazole-1-yl, ⁇ Midazol 2 yl, pyrazole 1 yl, pyrazole 3 yl, thiazole 2 yl, thiazole 4 yl, oxazole 2 yl, oxazole 4 yl, isoxazole 3 yl, isoxax Zol-4yl, pyrimidine 2yl, pyrimidine-4-yl, pyridine-2-yl, pyridine-3-yl, pyrrolidine-2-yl, pyrrolidine 3-yl, benzothiophene 2-yl Benzothiophene 3-yl, benzofuran 2-yl, benzofuran 3-yl, indole 1-2-yl, indole
- C 1 linear, branched or cyclic fluorinated alkyl group means fluoromethyl, trifluoro
- (R) Si groups include trimethylsilyl, triethylsilyl, triprovirsilyl, tree i—
- Provir silyl dimethyl-i-propyl silyl, jetyl-i-propyl silyl, tributyl silyl, tert-butyl dimethyl silyl, pentyl dimethyl silyl, hexyl dimethyl silyl, phenyl C-C alkyl silyl, 1 naphthyl C-C alkyl silyl, 2-
- Water-repellent group represents all of the substituents R except a hydrogen atom.
- R represents a hydrogen atom or a C 4 linear alkyl group.
- C linear alkyl group and “C linear, branched or cyclic alkyl group” are
- 1-20 represents a linear, branched or cyclic alkylene group. Also
- R is an OH group, a C linear, branched or cyclic alkyloxy group, a COOH group, CO
- R (R) represents that R is bonded to R.
- m is an integer greater than 1
- the cyclic alkyl group is a C straight chain in the repeating unit represented by the above formula ( ⁇ ).
- C linear, branched or cyclic alkylene group means methylene, ethylene, trimethyl
- Poly group is a substituent of R, excluding C straight, branched or cyclic alkyl groups Represents everything.
- the block copolymer represented by the following formula (I) of the present invention is shown below.
- the block copolymers represented by the formula (I) are classified into the following three types.
- each A and each B is a homopolymer or a random or block copolymer.
- each A or each B may have the same or different repeating units.
- each A or each B is the same, it can be expressed by the structural formula of A-B where there is no distinction between A and A or B and B.
- At least one segment of A has a force having a water repellent group, or at least one segment of B has a polar group. This means that the case where at least one segment of A has a water-repellent group and at least one segment of B has a polar group is also included.
- the styrene-based repeating unit having a water-repellent group and the styrene-based repeating unit having no water-repellent group may be either a random copolymer or a block copolymer. The same applies to a (meth) acrylic acid ester-based repeating unit having a polar group and a (meth) acrylic acid ester-based repeating unit having no polar group.
- Model cases included in each type are shown below. However, it shows the case where each segment of A, B and C consists of 6 repeating units.
- the block copolymer included in the present invention is not limited to these examples.
- the intermediate segment has a repeating unit having a water-repellent group or a polar group.
- the block copolymer of the present invention has a mass average molecular weight (Mw) of 50,000 or less, and those having a weight average molecular weight of 40,000 or less, 30,000 or less, or 20,000 or less can be prepared according to the purpose.
- the mass average molecular weight (Mw) here is a numerical value obtained by gel permeation chromatography (GPC) method using polystyrene as a standard product. Even with such a molecular weight, a microphase separation structure with a small domain size can be reliably formed.
- the molecular weight distribution is not particularly limited, but is preferably 1.3 or less, particularly preferably 1.2 or less.
- the limit of the amount of contamination of alkali metal, alkaline earth metal, transition metal, etc. in the block copolymer of the present invention is different depending on the application. Usually, lOOppm or less, preferably 50ppm or less, more preferably lppm It is as follows. In particular, when used for semiconductor devices, the limit of the amount of metal contamination is lOOppb or less, preferably 50 ppb or less.
- the styrene-based repeat represented by the formula ( ⁇ ) in the block copolymer of the present invention Regarding the content ratio of the segment consisting of unit force and the segment composed of the (meth) acrylate-based repeating unit represented by the formula (III), the segment composed of styrene-based repeating units in the entire block copolymer. but more preferably to be 2-98 mol 0/0 is a preferred instrument 5-95 mol% and more preferably fixture 10 to 90 mol%.
- Segment A has the formula (II)
- a homopolymer or a random or block copolymer having at least one kind of repeating unit represented by The substituent R is as described above.
- the monomer which is a raw material includes the following compounds.
- mono-substituted styrene is preferable, and monoalkyl-substituted styrene, monotrifluoromethyl-substituted styrene, and monosilyl-substituted styrene are particularly preferable.
- 4-tert-butyl styrene, 4 trifluoro examples include romethyl styrene and 4-trimethylsilyl styrene.
- a homopolymer or a random or block copolymer having at least one kind of repeating unit represented by The substituents R and R are as described above.
- the monomer which is a raw material includes the following compounds.
- (meth) acrylic acid and hydroxy group-containing (meth) acrylic acid ester are preferable, and (meth) acrylic acid, (meth) acrylic acid 2-hydroxyethyl and the like are particularly preferable. Can be mentioned.
- Segment C may be segment A or segment B, or segment A and B combined with segment A and segment B.
- the monomer as the raw material is the same as the above-mentioned styrene monomer or (meth) acrylic ester monomer.
- a styrene-based repeating unit force is a force that has a water-repellent group.
- a (meth) acrylate-based repeating unit force segment that has no polar group is also a styrene-based repeating unit force.
- the proportion of the repeating unit of styrene having a water-repellent group in the segment is 5 to: preferably LOO mol%, more preferably 10 to 95 mol%, more preferably 20 to 90 mol% More preferably it is.
- the styrene-based repeating unit force is The proportion of the repeating unit of styrene having a water-repellent group in the block chain varies depending on the content of the polar group in the block chain that also has a (meth) acrylic acid ester-based repeating unit force. It is preferably more than 0 and not more than 100 mol%, more preferably more than 0 and not more than 95 mol%, still more preferably more than 0 and not more than 90 mol%.
- (Meth) acrylic ester-based segments that have a repeating unit force have polar groups
- a styrene-based repeating unit force that has no water-repellent group is a (meth) acrylic ester-based segment
- the ratio of the repeating unit of the (meth) acrylic acid ester group having a polar group occupied in the segment is preferably 5 to 100 mol%, and preferably 10 to 90 mol%. More preferably, it is 15 to 80 mol%.
- a (meth) acrylate ester In the case of a block copolymer having a styrene-based repeating unit force having a water-repellent group and a (meth) acrylate-based repeating unit force having a polar group, a (meth) acrylate ester
- the ratio of the (meth) acrylate-based repeating unit having a polar group in the block chain that also has the repeating unit force of the system depends on the content of the water-repellent group in the block chain that has the styrene-based repeating unit force. will vary, it generally is not more than 80 mol% beyond a more preferred device 0 can exceed 100 mole 0/0 preferably fixture 0 not more than more than 0 90 mol% or less Is even better.
- the block copolymer of the present invention can be easily synthesized by a known living polymerization method.
- Living radical polymerization does not require protection of functional groups.
- the preferred living-on polymerization is capable of strictly controlling the composition and molecular weight.
- the hydroxyl group can be generated by protecting with an alkylsilyl group such as a trimethylsilyl group or a triethylsilyl group, followed by deprotection, and after polymerization of a monomer having an epoxy group, the ring can be opened with an acid or the like. Can be generated.
- Acetylacetone group can be generated by the action of diketene using a hydroxyl group-containing polymer.
- deprotection for generating a functional group such as a hydroxyl group or a carboxyl group may be performed immediately after polymerization of the block copolymer, or a polymer having a polar group protected may be subjected to, for example, a photoacid generator or a thermal acid generator.
- An agent may be added and after the formation of the polymer film, acid may be generated to deprotect. The latter is preferred when the solubility of the block copolymer in the solvent is low or when the block copolymer is used in a membrane.
- the microphase-separated structure formed by the block copolymer of the present invention has a sea-island structure, a columnar structure, a lamellar structure, and the like.
- the microphase separation structure is an object having a microphase separation structure. Examples of the object include a thin film, but are not limited thereto.
- the domain size is 20 nm or less, and those with a size of 15 nm or less can be prepared. This domain size is determined by filtering the solution obtained by dissolving the block copolymer in a solvent, spin-coating on the substrate, heating and annealing the substrate surface, and the atomic force microscope (AFM) phase mode.
- AFM atomic force microscope
- the domain size of 20 nm or less means that 50% or more of the domain is 20 nm or less, but 70% or more is preferably in the above range, preferably 80% or more. More preferably, 90% or more is in the above range.
- a thin film is produced by dissolving the block copolymer in an appropriate solvent, coating the substrate by a method such as spin coating, and drying.
- a film is formed, and this film is annealed for a long time around the glass transition temperature of the polymer.
- the microphase-separated structure using the block copolymer of the present invention comprises a thin film coated by a method such as a spin coating method at 30 to 200 ° C, preferably 50 to 150 ° C, more preferably 70 to 70 ° C from the glass transition temperature.
- the annealing temperature is a temperature in the range of 30 ° C before and after the glass transition temperature of the polymer used, and a temperature 0 to 30 ° C higher than the glass transition temperature is 10 to 30 ° C higher than the preferred glass transition temperature. Temperature is more preferred.
- a method for returning to the annealing temperature it is important to return it for a predetermined time, and the method is arbitrary.
- a clear phase separation structure may not be obtained. Therefore, a method of gradually returning from a temperature 20 to 200 ° C. higher than the glass transition temperature to the annealing temperature under vacuum is preferable.
- This method is applicable not only to the block copolymer represented by the formula (I) but also to all block copolymers.
- Solvents used to dissolve the block copolymer include, for example, a block copolymer having a polar group that has good solubility, a thin film can be made uniform when coating by a method such as spin coating, and drying after coating.
- those having suitability from the viewpoint of little remaining solvent and those having a boiling point of 100 ° C. or more can be used alone or in a mixed solvent.
- an aryl solvent may be used depending on the type of polymer that is preferably dissolved in a ketone solvent or an ester solvent.
- cyclohexanone propylene glycol monomethyl ether acetate, ethyl lactate, ⁇ -petit-mouthed ratatatone, ⁇ -force prolatathone, and xylene.
- propylene glycol monomethyl ether acetate, ethyl lactate and the like are particularly preferable.
- the amount of solvent used varies depending on the film thickness, for example, when forming a thin film, but the solvent is used so that the block copolymer is usually 15 wt% or less, preferably 8 wt% or less, more preferably 2% or less. It is preferable to do this.
- the mixed phase separation structure can be fixed at room temperature.
- the melted block copolymer can be formed into a desired shape by an injection molding method, a hot press method, a transfer molding method or the like, and then annealed to form a microphase separation structure.
- a mask for transferring a pattern using the block copolymer of the present invention forms a microphase separation structure by forming a block copolymer film or molded body, and then forms one of the polymers. It can be obtained by selectively removing the phase, thereby forming a porous membrane or structure having a nanometer order pattern.
- Mixing phase separation structural force One method of selectively removing one polymer phase includes differences in thermal decomposability between both polymer phases, differences in decomposability with respect to energy rays, and differences in dry etching rates. The method of using can be mentioned.
- ECHMA 1-Ethylcyclohexyl methacrylate
- SiOEMA 2-trimethylsiloxetyl methacrylate
- PMMA Polymethyl methacrylate
- PHEMA Polyhydroxyethyl methacrylate
- PBSt Poly p-tertiary butino styrene
- PSt / PMA / PMMA Triblock copolymer of PSt, PMA and PMMA
- PSt / P HEMA / MMA: random copolymer of HEMA and MMA and block copolymer of PSt
- PBSt / PMMA Diblock copolymer of PBSt and PMMA
- PBSt / P (MA / MMA) A random copolymer of MA and MMA and a block copolymer of PBSt.
- PStZPHEMAZPMMA Triblock copolymer of PSt, PHEMA and PMMA Solvents, initiators and additives
- NBL 1. OM normal butyl lithium solution
- NBL1.07 g (2.57 mmol) was added to THF454.8 g to which LiCll. 92 g (l.72 mmol) was added, and the mixture was stirred at room temperature for 30 minutes to remove moisture and the like in the system.
- 23.6 g (226.3 mmol) of St monomer were calcined.
- 7 g (l. 68 mmol) of NBLO. was initiated for polymerization.
- DPEl. 03 g (5.71 mmol) was added and stirred for 10 minutes.
- the obtained block copolymer was dissolved in a mixed solvent of toluene and ethanol to make a 10 wt% solution, and deprotection reaction was carried out using sulfuric acid at 70 ° C. for 180 minutes.
- Example 2 Using this polymer B, a sample with a thickness of 37 nm obtained in the same manner as in Example 1 was measured in the AFM phase mode, and a clear sea-island phase separation structure with a diameter of about 7 nm was observed (Fig. 2). .
- Example 3 PSt / P (HEMA / MMA) block copolymer
- the obtained polymer was dissolved in THF to make a 10 wt% solution, and deprotection reaction was performed using hydrochloric acid at room temperature for 30 minutes.
- Example 5 PSt / P (HEMA / MMA) block copolymer
- NBL1.02 g (2.45 mmol) was added to THF44.5 g supplemented with LiCll. 88 g (l. 69 mmol), and the mixture was stirred at room temperature for 30 minutes to remove moisture and the like in the system. — 40 ° C [After cooling, DBuMgO. 71 g (l. Ommol) and BSt monomer 34.0 g (212.2 mmol) were added. In this solution, 76 g (l.82 mmol) of NBLO. was stirred at 40 ° C. for 10 minutes, and then 1.01 g (5.60 mmol) of DPE was stirred for 10 minutes.
- Example 2 Using this polymer F, a 48 nm thick sample obtained in the same manner as in Example 1 was measured in the AFM phase mode, and a clear sea-island phase separation structure with a diameter of about l nm was observed.
- Example 7 PBSt / P (MA / MMA) block copolymer
- the obtained polymer was dissolved in a mixed solvent of toluene and ethanol to make a 10 wt% solution, and deprotection reaction was performed using sulfuric acid at 70 ° C. for 180 minutes.
- Example 2 Using this polymer G, a 47 nm thick sample obtained in the same manner as in Example 1 was measured in the AFM phase mode, and a clear sea-island phase separation structure having a diameter of about l nm was observed.
- the obtained polymer was dissolved in THF to make a 10 wt% solution, and deprotection reaction was performed using hydrochloric acid at room temperature for 30 minutes.
- Example 9 PStZPMAZPMMA Triblock Copolymer
- Example 1 Using this polymer I, a 45 nm thick sample obtained in the same manner as in Example 1 was measured in the AFM phase mode, and a clear sea-island phase separation structure with a diameter of about 19 nm was observed.
- PStZP (MAZMMA) block copolymer A of Example 1 When a 46 nm thick sample obtained by the same method as in 1 was measured in AFM phase mode, no clear phase separation structure was observed (Fig. 5).
- a microphase separation structure can be formed even with a small molecular weight, and a microphase separation structure with a small domain size can be formed. Therefore, for example, a mask for transferring a pattern can be manufactured, and an electronic material such as a recording device having a high density and a clean pattern can be manufactured using this mask.
Description
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Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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US12/300,512 US8193285B2 (en) | 2006-05-16 | 2007-05-16 | Block copolymers |
KR1020107011403A KR101046551B1 (ko) | 2006-05-16 | 2007-05-16 | 블록 코폴리머 |
EP07743511.3A EP2019120B1 (en) | 2006-05-16 | 2007-05-16 | Block copolymers |
CN2007800171037A CN101443371B (zh) | 2006-05-16 | 2007-05-16 | 嵌段共聚物 |
JP2008515595A JP5457027B2 (ja) | 2006-05-16 | 2007-05-16 | ブロックコポリマー |
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JP2006-137083 | 2006-05-16 | ||
JP2006137083 | 2006-05-16 |
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WO2007132901A1 true WO2007132901A1 (ja) | 2007-11-22 |
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PCT/JP2007/060076 WO2007132901A1 (ja) | 2006-05-16 | 2007-05-16 | ブロックコポリマー |
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US (1) | US8193285B2 (ja) |
EP (1) | EP2019120B1 (ja) |
JP (1) | JP5457027B2 (ja) |
KR (2) | KR101046551B1 (ja) |
CN (1) | CN101443371B (ja) |
WO (1) | WO2007132901A1 (ja) |
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JP2009209271A (ja) * | 2008-03-04 | 2009-09-17 | Kyoto Institute Of Technology | ナノ構造材料の製造方法、ナノ構造材料及びその利用 |
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KR101840960B1 (ko) * | 2013-12-17 | 2018-03-21 | 아르끄마 프랑스 | 스티렌 및 메틸 메타크릴레이트 기재의 비구조화 블록 코폴리머를 사용하는 블록 코폴리머 필름의 나노구조화 방법, 및 나노구조화 블록 코폴리머 필름 |
JP2017501270A (ja) * | 2013-12-17 | 2017-01-12 | アルケマ フランス | スチレン及びメタクリル酸メチルをベースとする非構造化ブロックコポリマーを用いるブロックコポリマーフィルムのナノ構造化のための方法、並びにナノ構造ブロックコポリマーフィルム |
JPWO2016043005A1 (ja) * | 2014-09-17 | 2017-04-27 | 富士フイルム株式会社 | パターン形成方法、電子デバイスの製造方法、電子デバイス、ブロック共重合体、及び、ブロック共重合体の製造方法 |
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JP5457027B2 (ja) | 2014-04-02 |
CN101443371A (zh) | 2009-05-27 |
JPWO2007132901A1 (ja) | 2009-09-24 |
KR101007166B1 (ko) | 2011-01-12 |
US8193285B2 (en) | 2012-06-05 |
CN101443371B (zh) | 2011-09-07 |
EP2019120A4 (en) | 2009-07-01 |
KR20100070380A (ko) | 2010-06-25 |
EP2019120B1 (en) | 2016-04-13 |
KR101046551B1 (ko) | 2011-07-05 |
US20090253867A1 (en) | 2009-10-08 |
EP2019120A1 (en) | 2009-01-28 |
KR20080112368A (ko) | 2008-12-24 |
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