WO2016089123A1 - 고분자, 이의 제조방법 및 이를 포함하는 전해질막 - Google Patents
고분자, 이의 제조방법 및 이를 포함하는 전해질막 Download PDFInfo
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- WO2016089123A1 WO2016089123A1 PCT/KR2015/013093 KR2015013093W WO2016089123A1 WO 2016089123 A1 WO2016089123 A1 WO 2016089123A1 KR 2015013093 W KR2015013093 W KR 2015013093W WO 2016089123 A1 WO2016089123 A1 WO 2016089123A1
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- 0 *c(cc1)ccc1F Chemical compound *c(cc1)ccc1F 0.000 description 2
- WICNCWOMDSFCQU-UHFFFAOYSA-N CC(C(c(cc1)ccc1-c1cc(-c2ccc(CO)cc2)cc(-c2ccc(CC(c(cc3)ccc3F)=O)cc2)c1)=O)c(cc1)ccc1F Chemical compound CC(C(c(cc1)ccc1-c1cc(-c2ccc(CO)cc2)cc(-c2ccc(CC(c(cc3)ccc3F)=O)cc2)c1)=O)c(cc1)ccc1F WICNCWOMDSFCQU-UHFFFAOYSA-N 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G75/00—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
- C08G75/20—Polysulfones
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- 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
- C08J5/2206—Films, membranes or diaphragms based on organic and/or inorganic macromolecular compounds
- C08J5/2218—Synthetic macromolecular compounds
- C08J5/2256—Synthetic macromolecular compounds based on macromolecular compounds obtained by reactions other than those involving carbon-to-carbon bonds, e.g. obtained by polycondensation
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G75/00—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
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- C—CHEMISTRY; METALLURGY
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G75/00—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
- C08G75/14—Polysulfides
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- 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
- 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
- C08J5/2287—After-treatment
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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
- C08L65/00—Compositions of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain; Compositions of derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L81/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen or carbon only; Compositions of polysulfones; Compositions of derivatives of such polymers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
- H01M10/0565—Polymeric materials, e.g. gel-type or solid-type
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
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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
- C08J2381/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen, or carbon only; Polysulfones; Derivatives of such polymers
- C08J2381/06—Polysulfones; Polyethersulfones
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present application relates to a polymer, a method for preparing the same, and an electrolyte membrane including the same.
- the present application is to provide a polymer, a method for producing the same and an electrolyte membrane including the same.
- An exemplary embodiment of the present application is a brancher represented by the formula (1); And it provides a polymer comprising a repeating unit represented by the formula (A).
- L 1 to L 3 are the same as or different from each other, and each independently a direct bond, -SO 2- , -CO-, or -S-,
- R 1 to R 7 are the same as or different from each other, and each independently hydrogen; heavy hydrogen; Halogen group; Nitrile group; Nitro group; Hydroxyl group; Cyano group; C 1 to C 60 straight or branched alkyl; C 2 Through C 60 Straight or branched alkenyl; C 2 to C 60 straight or branched alkynyl; C 3 to C 60 monocyclic or polycyclic cycloalkyl; C 2 to C 60 monocyclic or polycyclic heterocycloalkyl; C 6 Through C 60 Monocyclic or polycyclic aryl; C 2 Through C 60 Monocyclic or polycyclic heteroaryl; And an amine group, the substituents may be substituted or unsubstituted with halogen,
- n, p, q, r and s are the same as or different from each other, and each independently an integer of 0 to 4,
- t is an integer from 0 to 3
- R 1 to R 7 are each an integer of 2 or more, a plurality of R 1 to R 7 are the same as or different from each other,
- v means the number of repeating units, an integer from 1 to 1000,
- L 11 and L 12 are the same as or different from each other, and are each independently -S- or -SO 2- ,
- X 1 and X 2 are the same as or different from each other, and are each independently represented by any one of Formulas 2 to 4,
- L 4 is selected from a direct bond, -CZ 2 Z 3- , -CO-, -O-, -S-, -SO 2- , -SiZ 2 Z 3 -and a substituted or unsubstituted divalent fluorene group Which one,
- Z 2 and Z 3 are the same as or different from each other, and each independently one selected from hydrogen, an alkyl group, a trifluoromethyl group (-CF 3 ), and a phenyl group,
- S 1 to S 5 are the same as or different from each other, and each independently hydrogen; heavy hydrogen; Halogen group; Cyano group; Nitrile group; Nitro group; Hydroxyl group; Substituted or unsubstituted alkyl group; A substituted or unsubstituted heterocycloalkyl group; A substituted or unsubstituted cycloalkyl group; Substituted or unsubstituted alkoxy group; Substituted or unsubstituted alkenyl group; Substituted or unsubstituted silyl group; Substituted or unsubstituted boron group; Substituted or unsubstituted amine group; Substituted or unsubstituted aryl group; Substituted or unsubstituted heteroaryl group; -SO 3 H; -SOO 3 - M + ; -COOH; -COO - M + ; -PO 3 H
- a to e are the same as or different from each other, and each independently an integer of 0 or more and 4 or less,
- f is an integer of 1 or more and 5 or less.
- An exemplary embodiment of the present application provides an electrolyte membrane including the polymer.
- An exemplary embodiment of the present application provides a battery including the electrolyte membrane.
- a to C are each a halogen group
- L 1 to L 3 are the same as or different from each other, and each independently a direct bond, -SO 2- , -CO-, or -S-,
- R 1 to R 7 are the same as or different from each other, and each independently hydrogen; heavy hydrogen; Halogen group; Nitrile group; Nitro group; Hydroxyl group; Cyano group; C 1 to C 60 straight or branched alkyl; C 2 Through C 60 Straight or branched alkenyl; C 2 to C 60 straight or branched alkynyl; C 3 to C 60 monocyclic or polycyclic cycloalkyl; C 2 to C 60 monocyclic or polycyclic heterocycloalkyl; C 6 Through C 60 Monocyclic or polycyclic aryl; C 2 Through C 60 Monocyclic or polycyclic heteroaryl; And an amine group, the substituents may be substituted or unsubstituted with halogen,
- n, p, q, r and s are the same as or different from each other, and each independently an integer of 0 to 4,
- t is an integer from 0 to 3
- R 1 to R 7 are each an integer of 2 or more, a plurality of R 1 to R 7 are the same as or different from each other,
- L 4 is selected from a direct bond, -CZ 2 Z 3- , -CO-, -O-, -S-, -SO 2 -,-SiZ 2 Z 3 -and a substituted or unsubstituted divalent fluorene group Which one,
- Z 2 and Z 3 are the same as or different from each other, and each independently one selected from hydrogen, an alkyl group, a trifluoromethyl group (-CF 3 ), and a phenyl group,
- S 1 to S 5 are the same as or different from each other, and each independently hydrogen; heavy hydrogen; Halogen group; Cyano group; Nitrile group; Nitro group; Hydroxyl group; Substituted or unsubstituted alkyl group; A substituted or unsubstituted heterocycloalkyl group; A substituted or unsubstituted cycloalkyl group; Substituted or unsubstituted alkoxy group; Substituted or unsubstituted alkenyl group; Substituted or unsubstituted silyl group; Substituted or unsubstituted boron group; Substituted or unsubstituted amine group; Substituted or unsubstituted aryl group; Substituted or unsubstituted heteroaryl group; -SO 3 H; -SOO 3 - M + ; -COOH; -COO - M + ; -PO 3 H
- a to e are the same as or different from each other, and each independently an integer of 0 or more and 4 or less, and 0 ⁇ d + e ⁇ 6,
- f is an integer of 1 or more and 5 or less.
- An exemplary embodiment of the present application comprises the steps of preparing a polymer according to the manufacturing method of the polymer.
- It provides a method for producing an electrolyte membrane comprising the step of forming a membrane using the prepared polymer.
- the polymer according to the exemplary embodiment of the present application is novel and has high possibility of being used as various materials or raw materials thereof.
- the polymer according to the exemplary embodiment of the present application includes a brancher having a plurality of active regions, thereby having high activity, and having an -S- or -SO 2 -linking group, which has excellent physical and chemical resistance properties. It works.
- the electrolyte membrane including the polymer according to the exemplary embodiment of the present application is excellent in mechanical properties and chemical properties of the membrane, and has an effect of having high ion conductivity even under high humidity conditions.
- Figure 1 is a graph measuring the hydrogen ion conductivity of the polymer electrolyte membrane and Nafion membrane prepared in Preparation Example 3 of the present application.
- Figure 2 is a mass data showing the result of the synthesis confirmation of the brancher manufactured in Preparation Example 1 of the present application.
- An exemplary embodiment of the present application is a brancher represented by the formula (1); And it provides a polymer comprising a repeating unit represented by the formula (A).
- the brancher serves to link or crosslink the chain in the polymer.
- Branches may be formed in the polymer chain according to the structure or the number of the branchers, or the chains may be crosslinked with each other to form a mesh-like structure.
- the brancher is a trivalent organic group, which may be combined with additional units in each of three directions to extend the polymer chain.
- the polymer according to the exemplary embodiment of the present application includes a brancher having a plurality of active regions in the core structure itself, and thus has high activity, and physical properties and chemical resistance characteristics may vary depending on the type of linking group of the brancher. It can exhibit excellent effects.
- Linker of the brancher L 1 to L 3 may be a direct bond, -SO 2- , -CO- or -S-.
- the mechanical properties and chemical resistance of the polymer may be excellent.
- the following mechanism may cause acidic acid, which may increase the reactivity, thereby degrading chemical resistance.
- R is the same as defined in R 1 to R 7 of Formula 1
- n, m and p are the same as defined in Formula 1.
- the capping group at the end of the brancher may be a halogen group, -OH, -SH and the like.
- the capping machine It may mean a substituent connected to.
- the sulfur linker is a linking group in which the compound is released by condensation polymerization and remains in the chain.
- the sulfur linker may be the case that HF is removed and only sulfur (-S-) remains in the chain when the dihalogen-based monomer and the dithiol-based monomer are polymerized.
- the sulfonyl (-SO 2- ) linking group may be, for example, in the form of the sulfur (-S-) linking group is oxidized.
- the sulfur (-S-) or sulfonyl (-SO 2- ) linker is not easily decomposed compared to the conventional oxygen (-O-) linker has an excellent chemical stability effect.
- examples of the halogen group include fluorine, chlorine, bromine or iodine.
- the alkyl group may be a straight chain or branched chain, carbon number is not particularly limited but is preferably 1 to 60, specifically 1 to 40, more specifically 1 to 20. Specific examples include, but are not limited to, methyl, ethyl, propyl, isopropyl, butyl, t-butyl, pentyl, hexyl and heptyl groups.
- the alkenyl group may be linear or branched chain, carbon number is not particularly limited, but is preferably 2 to 60, specifically 2 to 40, more specifically 2 to 20.
- the alkoxy group may be linear or branched chain, carbon number is not particularly limited, but is preferably 1 to 60, specifically 1 to 40, more specifically 1 to 20.
- the cycloalkyl group is not particularly limited, but is preferably 3 to 60 carbon atoms, specifically 3 to 40 carbon atoms, more specifically 5 to 20 carbon atoms, and particularly preferably a cyclopentyl group and a cyclohexyl group.
- the heterocycloalkyl group includes one or more of S, O, and N, and is not particularly limited, but is preferably 2 to 60 carbon atoms, specifically 2 to 40 carbon atoms, and more specifically 3 to 20 carbon atoms.
- the number of carbon atoms is not particularly limited, but is preferably 1 to 60, specifically 1 to 40, more specifically 1 to 20.
- Specific examples of the amine group include methylamine group, dimethylamine group, ethylamine group, diethylamine group, phenylamine group, naphthylamine group, biphenylamine group, anthracenylamine group, and 9-methyl-anthracenylamine group. , Diphenylamine group, phenylnaphthylamine group, ditolylamine group, phenyltolylamine group, triphenylamine group and the like, but are not limited thereto.
- the aryl group may be monocyclic or polycyclic, and the carbon number is not particularly limited, but is preferably 6 to 60, specifically 6 to 40, and more specifically 6 to 20.
- Specific examples of the aryl group include phenyl group, biphenyl group, terphenyl group, naphthyl group, vinaphthyl group, anthracenyl group, phenanthrenyl group, pyrenyl group, perylenyl group, tetrasenyl group, chrysenyl group, fluorenyl group and ace
- Polycyclic aromatics such as a naphthasenyl group, a triphenylene group, and a fluoranthene group, etc. are mentioned, but it is not limited to this.
- the heteroaryl group includes at least one of S, O and N as a hetero atom, and the carbon number is not particularly limited, but is preferably 2 to 60, specifically 2 to 40, and more specifically 3 to 20.
- Specific examples of heteroaryl groups include pyridyl, pyrrolyl, pyrimidyl, pyridazinyl, furanyl, thienyl, imidazolyl, pyrazolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, triazolyl, Furazanyl, oxadiazolyl, thiadiazolyl, dithiazolyl, tetrazolyl, pyranyl, thiopyranyl, diazinyl, oxazinyl, thiazinyl, dioxynyl, triazinyl, tetrazinyl, quinolyl, iso Quinolyl, quinazolinyl
- substituted or unsubstituted is deuterium; Halogen group; Nitrile group; Nitro group; Hydroxyl group; Cyano group; C 1 to C 60 straight or branched alkyl; C 2 Through C 60 Straight or branched alkenyl; C 2 to C 60 straight or branched alkynyl; C 3 to C 60 monocyclic or polycyclic cycloalkyl; C 2 to C 60 monocyclic or polycyclic heterocycloalkyl; C 6 Through C 60 Monocyclic or polycyclic aryl; Substituted or unsubstituted with one or more substituents selected from the group consisting of C 2 to C 60 monocyclic or polycyclic heteroaryl, or substituted or unsubstituted with a substituent having a structure of two or more selected from the group consisting of substituents exemplified above. it means. As described above, when two or more substituents have a linked structure, the two or more substituents have a linked structure, the two or more
- L 11 and L 12 are the same as each other.
- L 11 and L 12 are -S-.
- L 11 and L 12 are —SO 2 —.
- At least one of L 11 and L 12 in the formula A is -SO 2- .
- v is an integer of 2 or more, and at least one of the plurality of L 11 and L 12 is —SO 2 —.
- the polymer when at least one of the linking groups L 11 and L 12 includes -SO 2- , it is not easily decomposed and chemical stability is superior to that when both L 11 and L 12 include only -S- or -O-. Can be effective. Furthermore, when both of the linking groups L 11 and L 12 in the polymer are -SO 2- , the chemical stability can be further improved. Accordingly, since the polymer according to the exemplary embodiment has a small change in molecular weight, the electrolyte membrane including the polymer may exhibit an excellent durability.
- the R One To R 7 They are the same as or different from each other, and each independently hydrogen; heavy hydrogen; Halogen group; An alkyl group of C 1 to C 10 ; And-(CF 2 ) uCF 3 , and u may be an integer of 0 to 5.
- the m, n and p are the same as or different from each other, and may each independently be 0 or 1.
- the m, n and p are the same as or different from each other, and each independently 0 or 1, and when m, n and p are each 1, the terminal linking group in the benzene ring ( ) And R 1 to R 3 may be substituted at ortho, meta, and para positions.
- the linking group of the terminal in the benzene ring ( And R 1 to R 3 may be substituted at the ortho position.
- the R One To R 3 They are the same as or different from each other, and each independently hydrogen; heavy hydrogen; Halogen group; An alkyl group of C 1 to C 10 ; And-(CF 2 ) uCF 3 , and u may be an integer of 0 to 5.
- the R One To R 3 They are the same as or different from each other, and each independently hydrogen; Halogen group; An alkyl group of C 1 to C 10 ; And-(CF 2 ) uCF 3 , and u may be an integer of 0 to 5.
- At least one of the R One To R 3 Is a halogen group; An alkyl group of C 1 to C 10 ; And-(CF 2 ) uCF 3 , and u may be an integer of 0 to 5.
- the benzene ring contains a substituent capable of activating the end group of the brancher (which may be represented as a leaving group or a capping group), particularly fluoroalkyl, it may have an effect of increasing the reactivity to favor polymerization. .
- At least one of R 1 to R 3 is any one selected from halogen or-(CF 2 ) uCF 3 , the u may be an integer of 0 to 2.
- the R One To R 3 It is-(CF 2 ) uCF 3 ,
- the u may be 0 or 1.
- the q, r, s and t may be zero.
- the R 4 To R 7 It may be hydrogen.
- the L One To L 3 It is the same as or different from each other, and each independently may be -S- or -SO 2- .
- the L One To L 3 It may be -SO 2- .
- the polymer may include a brancher containing a sulfone group, thereby effectively exhibiting the properties of the polymer without deteriorating physical properties due to the increase of the sulfone group.
- the sulfon group of the brancher serves to activate a living group at the end, so that high-molecular-weight materials can be synthesized when the brancher is applied, thereby serving to enhance mechanical properties.
- by including a sulfone structure in the polymer it can exhibit an excellent chemical resistance properties.
- the polymer may be a copolymer, and the copolymer may include an alternating copolymer, a block copolymer, a random copolymer, a graft copolymer ( graft copolymer) and the like.
- the polymer according to the exemplary embodiment of the present application may have a copolymer structure including a repeating unit other than the repeating unit of Formula A.
- the repeating unit represented by Formulas 2 to 4 may be any one selected from the following structural formulas.
- Q and Q ' are the same as or different from each other, and each independently hydrogen; -SO 3 H; -SOO 3 - M + ; -COOH; -COO - M + ; -PO 3 H 2 ; -PO 3 H - M + and -PO 3 2 - may be selected from 2M +, wherein M may be sodium, potassium or lithium.
- the brancher represented by Formula 1 may be any one selected from the following structural formula, each weight average molecular weight is as follows.
- Weight average molecular weight (Mw) about 70 to 800,000
- the content of the brancher represented by Formula 1 may be 0.5 to 50% by weight, specifically 1 to 10% by weight relative to the polymer solids.
- the content of the brancher is in the above range, it is possible to increase the molecular weight and to strengthen the mechanical properties by forming the network structure of the polymer.
- the weight average molecular weight of the polymer may be 5,000 or more and 5,000,000 or less, specifically 50,000 or more and 1,000,000 or less.
- the mechanical properties of the material including the polymer may not be reduced, and solubility of the polymer may be maintained.
- an exemplary embodiment of the present application provides an electrolyte membrane including the polymer.
- the thickness of the electrolyte membrane is preferably 5 to 200 ⁇ m, more preferably 10 to 100 ⁇ m.
- the thickness of the electrolyte membrane is preferably 5 to 200 ⁇ m, more preferably 10 to 100 ⁇ m.
- an exemplary embodiment of the present application provides a battery including the electrolyte membrane.
- the cell may be a fuel cell or a redox flow cell.
- an exemplary embodiment of the present application provides a fuel cell including the electrolyte membrane.
- a fuel cell is an energy conversion device that converts chemical energy of a fuel directly into electrical energy.
- a fuel cell is a power generation method that uses fuel gas and an oxidant and generates electric power by using electrons generated during the redox reaction.
- the membrane electrode assembly (MEA) of the fuel cell includes a cathode, an anode, and an electrolyte membrane, that is, an ion conductive electrolyte membrane as an electrochemical reaction between hydrogen and oxygen.
- the electrolyte membrane according to the present invention When the electrolyte membrane according to the present invention is used as an ion exchange membrane of a battery, the aforementioned effects can be obtained.
- an exemplary embodiment of the present application provides a redox flow battery including the electrolyte membrane.
- the redox flow battery (redox flow battery) is an electrochemical storage device that stores the chemical energy of an active material directly as electrical energy. It is a system in which the active material contained in the electrolyte is oxidized, reduced, and charged and discharged. to be.
- the redox flow battery uses a principle that charges and discharges are exchanged when electrons containing active materials having different oxidation states meet with an ion exchange membrane interposed therebetween.
- a redox flow battery is composed of a tank containing an electrolyte solution, a battery cell in which charging and discharging occurs, and a circulation pump for circulating the electrolyte solution between the tank and the battery cell, and the unit cell of the battery cell includes an electrode, an electrolyte, and an ion. Exchange membrane.
- the electrolyte membrane according to the present application is used as an ion exchange membrane of a redox flow battery, the aforementioned effects can be obtained.
- a to C are each a halogen group
- L 1 to L 3 are the same as or different from each other, and each independently a direct bond, -SO 2- , -CO-, -O-, or -S-,
- R 1 to R 7 are the same as or different from each other, and each independently hydrogen; heavy hydrogen; Halogen group; Nitrile group; Nitro group; Hydroxyl group; Cyano group; C 1 to C 60 straight or branched alkyl; C 2 Through C 60 Straight or branched alkenyl; C 2 to C 60 straight or branched alkynyl; C 3 to C 60 monocyclic or polycyclic cycloalkyl; C 2 to C 60 monocyclic or polycyclic heterocycloalkyl; C 6 Through C 60 Monocyclic or polycyclic aryl; C 2 Through C 60 Monocyclic or polycyclic heteroaryl; And an amine group, the substituents may be substituted or unsubstituted with halogen,
- n, p, q, r and s are the same as or different from each other, and each independently an integer of 0 to 4,
- t is an integer from 0 to 3
- R 1 to R 7 are each an integer of 2 or more, a plurality of R 1 to R 7 are the same as or different from each other,
- L 4 is selected from a direct bond, -CZ 2 Z 3- , -CO-, -O-, -S-, -SO 2- , -SiZ 2 Z 3 -and a substituted or unsubstituted divalent fluorene group Which one,
- Z 2 and Z 3 are the same as or different from each other, and each independently one selected from hydrogen, an alkyl group, a trifluoromethyl group (-CF 3 ), and a phenyl group,
- S 1 to S 5 are the same as or different from each other, and each independently hydrogen; heavy hydrogen; Halogen group; Cyano group; Nitrile group; Nitro group; Hydroxyl group; Substituted or unsubstituted alkyl group; A substituted or unsubstituted heterocycloalkyl group; A substituted or unsubstituted cycloalkyl group; Substituted or unsubstituted alkoxy group; Substituted or unsubstituted alkenyl group; Substituted or unsubstituted silyl group; Substituted or unsubstituted boron group; Substituted or unsubstituted amine group; Substituted or unsubstituted aryl group; Substituted or unsubstituted heteroaryl group; -SO 3 H; -SOO 3 - M + ; -COOH; -COO - M + ; -PO 3 H
- a to e are the same as or different from each other, and each independently an integer of 0 or more and 4 or less, and 0 ⁇ d + e ⁇ 6,
- f is an integer of 1 or more and 5 or less.
- Formula 1-A may be the same as the definition of Formula 1 except for A to C.
- Chemical Formulas 2-A to 4-A may be the same as the definitions of Chemical Formulas 2 to 4 except for D to I.
- the polymer in the manufacturing method of the polymer, includes a -S- linking group, and further comprising the step of oxidizing at least a portion of the -S- linking group of the polymer to -SO 2- Can be.
- the -S- linking group refers to a linking group of -S-, wherein -SH group, which is D to I in Formulas 2-A to 4-A, is formed by H falling off during the polymerization process. That is, the -S- linking group condensation-polymerizes the monomer represented by any one of the above formula 2-A to 4-A with another monomer or brancher, and thus the monomer represented by any one of the above formula 2-A to 4-A. It may mean a -S- linking group of the polymer chain formed by the -SH group as a terminal group.
- the linking group -SO 2 -in the polymer In the case of including the linking group -SO 2 -in the polymer, it is not easily decomposed compared to the case containing only -S- or -O- can exhibit an excellent chemical stability effect, and furthermore, the linking group in the polymer all -SO 2 In the case of-, the chemical stability can be further increased. In addition, since there is little change in the molecular weight, the electrolyte membrane including the polymer may exhibit an excellent durability.
- the oxidation may be performed using an oxidation solution.
- the oxidizing solution can enhance the chemical durability by changing the linking group -S- of the polymer skeleton to -SO 2- .
- the oxidizing solution may include an acid and hydrogen peroxide.
- the acid treatment since the acid treatment is performed at the same time as the oxidation, there is an advantage that does not require a separate acid treatment process.
- the acid may be acetic acid, sulfuric acid, formic acid, and the like, but is not limited thereto.
- an exemplary embodiment of the present application comprises the steps of preparing a polymer according to the manufacturing method of the polymer.
- It provides a method for producing an electrolyte membrane comprising the step of forming a membrane using the prepared polymer.
- before or after the forming of the film may include the step of oxidizing at least a portion of the -S- linking group in the polymer to -SO 2- .
- reaction mixture was then stirred for 4 hours in an oil bath at 140 ° C. to remove benzene by scratching the molecular sieves of the Dean-Stark apparatus with reflux and then the reaction temperature was increased to 175 ° C. The temperature was raised and polycondensation was carried out for 6 hours.
- the temperature of the reactant was reduced to room temperature, diluted with the addition of NMP, the diluted reactant was poured into excess distilled water to separate the copolymer from the solvent, filtered and dried in a vacuum oven at 80 ° C. for at least one day.
- a polymer was prepared. The weight average molecular weight of the polymer was 250,000.
- the solution was filtered through a glass filter (pore size 3) to remove dust and the like.
- a vacuum of 10% (w / V) of the filtrate was simultaneously heated to 120 ° C. to remove NMP in the filtrate, thereby preparing a solution of about 20% (w / V).
- the polymer electrolyte membrane of was prepared.
- the polymer electrolyte membrane prepared above was immersed in an oxidizing solution (mixed solution of acetic acid (200 ml), sulfuric acid (5 ml) and hydrogen peroxide (5 ml) at room temperature for one day to prepare a final poly (sulfone) electrolyte membrane.
- an oxidizing solution mixed solution of acetic acid (200 ml), sulfuric acid (5 ml) and hydrogen peroxide (5 ml) at room temperature for one day to prepare a final poly (sulfone) electrolyte membrane.
- the polymer according to an embodiment of the present application can be seen that the increase rate of hydrogen conductivity according to the increase in relative humidity is higher than Nafion.
- it can be confirmed that at high relative humidity of 80% or more, it has higher hydrogen ion conductivity than Nafion.
- the polymer according to the exemplary embodiment of the present application has not only chemical resistance and high mechanical properties by itself, but the electrolyte membrane including the polymer has high ion conductivity and may have an effect of improving performance of a battery.
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Abstract
Description
Claims (16)
- 하기 화학식 1로 표시되는 브랜처; 및 하기 화학식 A로 표시되는 반복단위를 포함하는 고분자:[화학식 1]상기 화학식 1에 있어서, L1 내지 L3는 서로 동일하거나 상이하고, 각각 독립적으로 직접결합, -SO2-, -CO- 또는 -S-이며,R1 내지 R7은 서로 동일하거나 상이하고, 각각 독립적으로 수소; 중수소; 할로겐기; 니트릴기; 니트로기; 히드록시기; 시아노기; C1 내지 C60의 직쇄 또는 분지쇄의 알킬; C2 내지 C60의 직쇄 또는 분지쇄의 알케닐; C2 내지 C60의 직쇄 또는 분지쇄의 알키닐; C3 내지 C60의 단환 또는 다환의 시클로알킬; C2 내지 C60의 단환 또는 다환의 헤테로시클로알킬; C6 내지 C60의 단환 또는 다환의 아릴; C2 내지 C60의 단환 또는 다환의 헤테로아릴; 및 아민기 중에서 선택되는 어느 하나이며, 상기 치환기들은 할로겐으로 치환 또는 비치환될 수 있고,m, n, p, q, r 및 s는 서로 동일하거나 상이하고, 각각 독립적으로 0 내지 4의 정수이며,t는 0 내지 3의 정수이고,상기 m, n, p, q, r, s 및 t가 각각 2 이상의 정수일 때, 복수의 R1 내지 R7은 서로 동일하거나 상이하며,[화학식 A]상기 화학식 A에 있어서,v는 반복단위 수를 의미하고, 1 내지 1000의 정수이며,L11 및 L12는 서로 동일하거나 상이하고, 각각 독립적으로 -S- 또는 -SO2-이며,X1 및 X2는 서로 동일하거나 상이하고, 각각 독립적으로 하기 화학식 2 내지 4 중 어느 하나로 표시되며,[화학식 2][화학식 3][화학식 4]상기 화학식 2 내지 화학식 4에서,L4는 직접결합, -CZ2Z3-, -CO-, -O-, -S-, -SO2-, -SiZ2Z3- 및 치환 또는 비치환된 2가의 플루오렌기 중에서 선택되는 어느 하나이고,Z2 및 Z3 는 서로 동일하거나 상이하며, 각각 독립적으로 수소, 알킬기, 트리플루오로메틸기(-CF3) 및 페닐기 중에서 선택되는 어느 하나이고,S1 내지 S5는 서로 동일하거나 상이하며, 각각 독립적으로 수소; 중수소; 할로겐기; 시아노기; 니트릴기; 니트로기; 히드록시기; 치환 또는 비치환된 알킬기; 치환 또는 비치환된 헤테로시클로알킬기; 치환 또는 비치환된 시클로알킬기; 치환 또는 비치환된 알콕시기; 치환 또는 비치환된 알케닐기; 치환 또는 비치환된 실릴기; 치환 또는 비치환된 붕소기; 치환 또는 비치환된 아민기; 치환 또는 비치환된 아릴기; 치환 또는 비치환된 헤테로아릴기; -SO3H; -SOO3 -M+; -COOH; -COO-M+; -PO3H2; -PO3H-M+ 및 -PO3 2 -2M+ 중에서 선택되는 어느 하나이고, 상기 M은 1족 원소이며,a 내지 e는 서로 동일하거나 상이하고, 각각 독립적으로 0 이상 4 이하인 정수이며, 0≤d+e≤6이고,f는 1 이상 5 이하의 정수이다.
- 청구항 1에 있어서, 상기 R1 내지 R7은 서로 동일하거나 상이하고, 각각 독립적으로 수소; 중수소; 할로겐기; C1 내지 C10의 알킬기; 및 -(CF2)uCF3 중에서 선택되는 어느 하나이며, 상기 u는 0 내지 5의 정수인 것인 고분자.
- 청구항 1에 있어서, 상기 m, n 및 p는 서로 동일하거나 상이하고, 각각 독립적으로 0 또는 1인 것인 고분자.
- 청구항 1에 있어서, 상기 q, r, s 및 t는 0인 것인 고분자.
- 청구항 1에 있어서, L1 내지 L3는 서로 동일하거나 상이하고, 각각 독립적으로 -S- 또는 -SO2-인 것인 고분자.
- 청구항 1에 있어서, L1 내지 L3는 -SO2-인 것인 고분자.
- 청구항 1에 있어서, 상기 화학식 1로 표시되는 브랜처의 함량은 고분자 고형분 대비 0.5 내지 50 중량%인 것인 고분자.
- 청구항 1에 있어서, 상기 고분자의 중량평균분자량은 5,000 내지 5,000,000인 것인 고분자.
- 청구항 1 내지 8 중 어느 한 항에 따른 고분자를 포함하는 전해질막.
- 청구항 9에 있어서, 상기 전해질막의 두께는 5 내지 200 ㎛인 것인 전해질막.
- 청구항 9의 전해질막을 포함하는 전지.
- a) 1,3,5-트리페닐벤젠 및 디할로겐계 페닐을 반응시켜 하기 화학식 1-A로 표시되는 브랜처를 제조하는 단계;b) 상기 브래처 및 하기 화학식 2-A 내지 4-A로 표시되는 단량체 중 적어도 하나를 중합하여 고분자를 제조하는 단계를 포함하는 것인 고분자의 제조방법:[화학식 1-A]상기 화학식 1-A에 있어서,A 내지 C는 각각 할로겐기이고,L1 내지 L3는 서로 동일하거나 상이하고, 각각 독립적으로 직접결합, -SO2-, -CO- 또는 -S-이며,R1 내지 R7은 서로 동일하거나 상이하고, 각각 독립적으로 수소; 중수소; 할로겐기; 니트릴기; 니트로기; 히드록시기; 시아노기; C1 내지 C60의 직쇄 또는 분지쇄의 알킬; C2 내지 C60의 직쇄 또는 분지쇄의 알케닐; C2 내지 C60의 직쇄 또는 분지쇄의 알키닐; C3 내지 C60의 단환 또는 다환의 시클로알킬; C2 내지 C60의 단환 또는 다환의 헤테로시클로알킬; C6 내지 C60의 단환 또는 다환의 아릴; C2 내지 C60의 단환 또는 다환의 헤테로아릴; 및 아민기 중에서 선택되는 어느 하나이며, 상기 치환기들은 할로겐으로 치환 또는 비치환될 수 있고,m, n, p, q, r 및 s는 서로 동일하거나 상이하고, 각각 독립적으로 0 내지 4의 정수이며,t는 0 내지 3의 정수이고,상기 m, n, p, q, r, s 및 t가 각각 2 이상의 정수일 때, 복수의 R1 내지 R7은 서로 동일하거나 상이하며,[화학식 2-A][화학식 3-A][화학식 4-A]상기 화학식 2-A 내지 화학식 4-A에 있어서,D 내지 I는 -SH이고,L4는 직접결합, -CZ2Z3-, -CO-, -O-, -S-, -SO2-, -SiZ2Z3- 및 치환 또는 비치환된 2가의 플루오렌기 중에서 선택되는 어느 하나이고,Z2 및 Z3 는 서로 동일하거나 상이하며, 각각 독립적으로 수소, 알킬기, 트리플루오로메틸기(-CF3) 및 페닐기 중에서 선택되는 어느 하나이고,S1 내지 S5는 서로 동일하거나 상이하며, 각각 독립적으로 수소; 중수소; 할로겐기; 시아노기; 니트릴기; 니트로기; 히드록시기; 치환 또는 비치환된 알킬기; 치환 또는 비치환된 헤테로시클로알킬기; 치환 또는 비치환된 시클로알킬기; 치환 또는 비치환된 알콕시기; 치환 또는 비치환된 알케닐기; 치환 또는 비치환된 실릴기; 치환 또는 비치환된 붕소기; 치환 또는 비치환된 아민기; 치환 또는 비치환된 아릴기; 치환 또는 비치환된 헤테로아릴기; -SO3H; -SOO3 -M+; -COOH; -COO-M+; -PO3H2; -PO3H-M+ 및 -PO3 2 -2M+ 중에서 선택되는 어느 하나이고, 상기 M은 1족 원소이며,a 내지 e는 서로 동일하거나 상이하고, 각각 독립적으로 0 이상 4 이하인 정수이며, 0≤d+e≤6이고,f는 1 이상 5 이하의 정수이다.
- 청구항 12에 있어서, 상기 고분자는 -S- 연결기를 포함하고, 상기 -S- 연결기의 적어도 일부를 -SO2-로 산화시키는 단계를 더 포함하는 것인 고분자의 제조방법.
- 청구항 13에 있어서, 상기 산화는 산화용액을 이용하여 수행되는 것인 고분자의 제조방법.
- 청구항 12의 고분자의 제조방법에 따라 고분자를 제조하는 단계; 및상기 제조된 고분자를 이용하여 막을 형성하는 단계를 포함하는 전해질막의 제조방법.
- 청구항 15에 있어서, 상기 막을 형성하는 단계 이전 또는 이후에 고분자 중 -S- 연결기의 적어도 일부를 -SO2-로 산화시키는 단계를 포함하는 것인 전해질막의 제조방법.
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JP2017527564A JP6628054B2 (ja) | 2014-12-02 | 2015-12-02 | 高分子およびその製造方法、並びにそれを含む電解質膜 |
CN201580066012.7A CN107001633B (zh) | 2014-12-02 | 2015-12-02 | 聚合物、该聚合物的制备方法以及包含该聚合物的电解质膜 |
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CN108598539A (zh) * | 2018-04-03 | 2018-09-28 | 宁波帝杨电子科技有限公司 | 一种钒电池用电解质隔膜及其制备方法 |
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JP6628054B2 (ja) | 2020-01-08 |
US20170327655A1 (en) | 2017-11-16 |
KR20160066531A (ko) | 2016-06-10 |
EP3228642B1 (en) | 2019-02-13 |
CN107001633A (zh) | 2017-08-01 |
JP2018504466A (ja) | 2018-02-15 |
CN107001633B (zh) | 2019-07-02 |
EP3228642A1 (en) | 2017-10-11 |
EP3228642A4 (en) | 2018-06-27 |
US11034808B2 (en) | 2021-06-15 |
KR101710284B1 (ko) | 2017-03-08 |
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