WO2020036434A1 - 폴리머, 그 정공 수송 재료로서의 사용, 및 그것을 포함하는 유기 전자 디바이스 - Google Patents
폴리머, 그 정공 수송 재료로서의 사용, 및 그것을 포함하는 유기 전자 디바이스 Download PDFInfo
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- WO2020036434A1 WO2020036434A1 PCT/KR2019/010358 KR2019010358W WO2020036434A1 WO 2020036434 A1 WO2020036434 A1 WO 2020036434A1 KR 2019010358 W KR2019010358 W KR 2019010358W WO 2020036434 A1 WO2020036434 A1 WO 2020036434A1
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- C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
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- C09D165/00—Coating compositions based on macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain; Coating compositions based on derivatives of such polymers
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- H10K85/631—Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine
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Definitions
- the present invention relates to a polymer comprising, as a repeating unit, a fluorene derivative substituted with an aromatic amino group at the 4 or 5 position in the main chain, and a hole transport material, a hole injection material, a hole in an organic electronic device (also referred to as an organic electronic device).
- a method of use as a material such as an injection / transport material, a host material of a light emitting layer, and / or an electron blocking / exciter blocking layer, and an organic electronic device comprising the polymer.
- an organic electroluminescent device organic EL device
- An organic electronic device is an element which requires the transportation of electric charge between the electrode and organic substance layer which comprise a device using the hole and / or the electron.
- An organic electronic device can be divided into two types according to an operation principle as follows. In a device of the first kind, excitons are formed in an organic layer by photons incident on the device from an external light source, the excitons are separated into electrons and holes, and these electrons and holes are transported to separate electrodes, respectively. It is an electronic device of the type which uses electromotive force. The second type of device applies a voltage to two or more separate electrodes or flows a current through the device, injecting holes and / or electrons into the organic semiconductor layer in contact with each electrode, and injecting the injected electrons and holes into the device.
- a device of the first kind includes, for example, an organic solar cell and an organic photoconductor (OPC).
- OPC organic photoconductor
- the second type of device includes, for example, an organic light emitting device, more specifically an organic electro luminescence (EL) device, and an organic transistor.
- EL organic electro luminescence
- an organic EL device usually has a structure including an organic material layer including an anode and a cathode, and a light emitting layer disposed between these electrodes.
- light emission is generated from the light emitting material using energy of excitons generated by recombination of holes and electrons injected from the anode and the cathode, respectively.
- the organic substance layer of organic electroluminescent device has a multilayered structure which consists of several layer which consists of different materials, each having a different function, in order to improve the characteristic of the organic electroluminescent device, for example, luminous efficiency, and these multiple
- the layer of consists of a hole injection layer, a hole transport layer, a light emitting layer, an electron carrying layer, an electron injection layer, etc., for example.
- one of these layers may be responsible for some of them, so some of these layers may be omitted.
- a hole blocking layer, an electron blocking layer, and / or a hole blocking layer for confining holes, electrons, and / or excitons in the planarization layer for enhancing the flatness of the electrode surface, the light emitting layer, It can also be included in an organic layer.
- an organic EL device having such a structure, when a voltage is applied between two electrodes, holes are injected from the anode, electrons are injected into the organic material layer from the cathode, and the injected holes and electrons are bonded to the light-emitting molecules. Thus, an exciton having a higher energy than the bottom state energy of the molecule is formed, and light emission occurs when the excitons return to the bottom state.
- Such an organic EL device is a self-luminous type light emitting device, and has characteristics such as high brightness, high efficiency, low driving voltage, wide viewing angle, high contrast, and high-speed response as compared with a liquid crystal device using a conventional backlight. It is known.
- the material used as the organic material layer can be classified into a light emitting material and a charge injection / transport material, for example, a hole injection material, a hole transport material, an electron transport material, an electron injection material, or the like according to its function. Can be.
- the light emitting material can be classified into blue, green, and red light emitting materials and yellow and orange light emitting materials necessary for achieving a better natural color depending on the light emitting color.
- the light emitting layer is formed of only one material, the problem may occur that the maximum light emission wavelength is shifted to a long wavelength due to intermolecular interactions, resulting in a decrease in color purity, or a decrease in efficiency of the device due to light emission attenuation effects.
- a host / impurity system containing a light emitting material and a host material can be used for the light emitting layer.
- an aromatic amine compound for example, NPB (N, N'-bis (naphthalen-1-yl) -N, N'-bis (phenyl)- Benzidine), TPD (N, N'-bis (3-methylphenyl) -N, N'-bis (phenyl) -benzidine), ⁇ -NPD (N, N'-di (1-naphthyl) -N, N '-Diphenylbenzidine), TAPC (1,1-bis [4- [N, N-di (p-tolyl) amino] phenyl] cyclo hexane] and the like are known.
- NPB N, N'-bis (naphthalen-1-yl) -N, N'-bis (phenyl)- Benzidine
- TPD N, N'-bis (3-methylphenyl) -N, N'-bis (phenyl) -benzidine
- ⁇ -NPD N, N'-di (1-na
- a hole transporting polymer has also been studied as a material capable of using a solution method, for example, a spin coating method, in a device manufacturing process.
- a solution method for example, a spin coating method
- Japanese Unexamined Patent Application Publication No. 2015-519424 International Publication No. 2013/156125 discloses a crosslink containing an aromatic amino group in a main chain as an electron transporting material capable of forming an organic layer of an organic EL device by spin coating.
- An organic EL device using a polymer and a crosslinkable polymer for the hole injection layer is described, and the life and operating voltage of the device are described to be superior to those of the polymer of the prior art.
- Japanese Unexamined Patent Application Publication No. 2015-516487 discloses a hole transporting polymer containing an aromatic amino group in its main chain and having a biphenyl group and a substituted fluorenyl group as side chain aromatic groups.
- the publication discloses that the polymer is used as a hole transporting layer of an organic EL device, and that the obtained organic EL device is superior in life and operating voltage to the polymer according to the prior art.
- Japanese Unexamined Patent Application Publication No. 2015-514839 International Publication No. 2013/156130 describes a polymer containing an aromatic amino group in the main chain and having an aromatic substituent at the ortho position of the aromatic group in the side chain.
- the publication discloses that the polymer is used as a hole transporting layer of an organic EL device, and that the obtained organic EL device is superior in life and operating voltage to the polymer according to the prior art.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2015-519424
- Patent Document 2 Japanese Patent Application Laid-Open No. 2015-516487
- Patent Document 3 Japanese Patent Application Laid-Open No. 2015-514839
- organic electroluminescent (EL) devices aromatic amine compounds having various chemical structures including polymers have been studied and developed so far, There is still a need to develop materials with better properties or materials with new chemical structures that have not been known to date.
- the present invention provides novel materials useful as hole transport materials for organic electronic devices, in particular organic EL devices.
- this invention provides the polymer demonstrated below.
- the polymers of the present invention are suitable for use as hole transport materials for organic electronic devices.
- the invention also provides an organic electronic device, in particular an organic EL device, having an organic layer comprising the polymer of the invention.
- the polymer of this invention is a polymer in which 40-100 mol% of all the repeating units which comprise a polymer consist of repeating units represented by following formula (1).
- * represents a coupling
- R1, R3, R4, R5, R6, and R8 are each independently a hydrogen atom, a deuterium atom, a fluorine atom, a CN group, an NRaRb group (Ra and Rb are independently substituted or unsubstituted alkyl groups having 1 to 30 carbon atoms, A substituted or unsubstituted aryl group having 6 to 30 ring atoms, and a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms, and a substituted or unsubstituted C1 to A group selected from the group consisting of an alkyl group of 30, a substituted or unsubstituted aryl group having 6 to 30 ring atoms, and a heteroaryl group having 5 to 30 substituted or substituted ring atoms,
- R4 and R5 is an aromatic amino group represented by the following formula (A) or (B),
- Ar1 represents a substituted or unsubstituted arylene group having 6 to 30 ring atoms, or a substituted or unsubstituted heteroarylene group having 5 to 30 ring atoms,
- Ar2 and Ar3 each independently represent a substituted or unsubstituted aryl group having 6 to 30 ring atoms or a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms,
- R9 and R10 are each independently a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 ring atoms, and a substituted or unsubstituted hetero atom having 5 to 30 rings
- R9 and R10 together with the carbon atom in formula (1) to which they are attached form a substituted or unsubstituted cycloalkyl ring having 3 to 10 ring atoms or form a substituted or unsubstituted spirofluorene ring .
- the group different from the repeating unit which exists in the terminal of a polymer is not put in the repeating unit which comprises a polymer. Moreover, it originates in the compound used as a monomer at the time of a polymer synthesis
- the polymer of the present invention in addition to the repeating unit represented by the formula (1), at least one repeating unit represented by the following formula (2) to formula (4) Furthermore, it is preferable that the sum total of the repeating unit represented by Formula (1) and the repeating unit represented by Formula (2)-Formula (4) is 60-100 mol% of all the repeating units which comprise a polymer.
- the repeating unit represented by formula (2) has a different chemical structure from the repeating unit represented by formula (1),
- * represents a coupling
- R1 ', R3', R4 ', R5', R6 ', and R8' are each independently a hydrogen atom, a deuterium atom, a fluorine atom, a CN group, an NRaRb group (Ra and Rb are independently substituted or unsubstituted) A group selected from the group consisting of an alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 ring atoms, and a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms; Or a group selected from the group consisting of an unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 ring atoms, and a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms.
- Indicates are each independently a hydrogen atom,
- R 9 'and R 10' are each independently a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, an substituted or unsubstituted aryl group having 6 to 30 ring atoms, and a substituted or unsubstituted ring member having 5 to 30 atoms Heteroaryl group of; Or R9 'and R10' together with the carbon atom in formula (2) to which they are bonded form a substituted or unsubstituted cycloalkyl ring having 3 to 10 ring atoms or form a substituted or unsubstituted spirofluorene ring. Form.
- * represents a coupling
- Ar12 represents a substituted or unsubstituted aryl group having 6 to 30 ring atoms or a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms;
- Ar11 and Ar21 are each independently substituted or unsubstituted An arylene group having 6 to 30 ring atoms is shown.
- * represents a coupling
- Ar12 and Ar22 each independently represent a substituted or unsubstituted aryl group having 6 to 30 ring atoms, or a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms;
- Ar11, Ar21, and Ar31 are Each independently represents a substituted or unsubstituted arylene group having 6 to 30 ring atoms.
- the repeating unit represented by the formula (4) is the repeating unit represented by the following formula (5), or the repeating unit represented by the formula (4) is the repeating unit represented by the formula (5) It is preferable that all or one part of what is included, ie, the repeating unit represented by Formula (4), is a repeating unit represented by Formula (5).
- Ar11 and Ar21 and Ar12 and Ar22 have the meaning defined by formula (4),
- R1 ', R3', R4 ', R5', R6 ', R8', R9 ', and R10' have the meaning defined in the formula (2).
- the polymer which concerns on one preferable aspect of this invention is a repeating unit represented by Formula (2) only as a repeating unit represented by Formula (2)-Formula (4). It is to include.
- the polymer of this invention consists only of the repeating unit of Formula (1) and Formula (2), or in addition to the repeating unit of Formula (1) and Formula (2), it is other than Formula (3) and (4) It may include a repeating unit of.
- the polymer chain is a repeating unit of Formula (1), and At least 1 type of repeating unit represented by Formula (2)-Formula (4) is comprised by it connected alternately, or a polymer chain is comprised by the repeating unit of Formula (1), and Formula (2)-Formula (4) It is preferable to include the block which the at least 1 sort (s) of repeating unit displayed alternately connected.
- the at least 1 sort (s) of repeating unit represented by Formula (2)-Formula (4) mentioned above is a repeating unit represented by Formula (2), Therefore, as a polymer of this invention, the polymer chain is Composed of repeating units represented by formula (1) and repeating units represented by formula (2), and they are alternately connected or polymer chains are represented by repeating units of formula (1) and formula (2) It is preferred to include blocks in which repeating units are alternately connected.
- R4 which is not represented by R1, R3, R6, R8, said Formula (A) or (B) in Formula (1), and said Formula (A) Or R5, not represented by (B), is each independently selected from the group consisting of a hydrogen atom, a deuterium atom, an unsubstituted alkyl group having 1 to 30 carbon atoms, and an unsubstituted aryl group having 6 to 30 ring atoms Qi
- R9 and R10 are each an unsubstituted or aryl group having 6 to 30 ring atoms substituted with an alkyl group having 1 to 30 carbon atoms; Or R9 and R10 together with the carbon atom in formula (1) to which they are attached form a spirofluorene ring unsubstituted or substituted with an alkyl group having 1 to 30 carbon atoms,
- Ar2 and Ar3 in Formulas (A) and (B) are each an unsubstituted or aryl group having 6 to 30 ring atoms substituted with an alkyl group having 1 to 30 carbon atoms, and Ar1 in Formula (B) is unsubstituted or It is preferable that it is the arylene group of 6-30 ring
- R1 ', R3', R4 ', R5', R6 ', and R8' are respectively independently a hydrogen atom and a deuterium atom.
- R1 ', R3', R4 ', R5', R6 ', and R8' are respectively independently a hydrogen atom and a deuterium atom.
- R 9 'and R 10' each independently represent an unsubstituted alkyl group having 1 to 30 carbon atoms or an aryl group having 6 to 30 ring atoms substituted with an unsubstituted or alkyl group having 1 to 30 carbon atoms; Or R9 'and R10' form an unsubstituted or unsubstituted cycloalkyl ring having 3 to 6 ring atoms which are unsubstituted or substituted with an alkyl group having 1 to 30 carbon atoms together with the carbon atom of formula (1) to which they are attached; It is preferable to form a spirofluorene ring substituted with an alkyl group having 1 to 30 carbon atoms.
- the polymer of the present invention includes a repeating unit having a crosslinkable group for crosslinking the polymer chains in the polymer chain, a crosslinkable group for crosslinking the polymer chains at the polymer terminal, Or a combination thereof. Therefore, the polymer in this case is a crosslinkable polymer which has a crosslinkable group.
- crosslinkable group for crosslinking the aforementioned polymer chains are an alkenyl group, a group represented by the following formula, or a combination thereof:
- * represents the position couple
- the latter is particularly preferred.
- the number of repeating units of the polymer of this invention mentioned above is 10-1000 on average per molecule of polymer, but it is not specifically limited to this range.
- the present invention provides a crosslinkable polymer comprising a crosslinkable polymer having a crosslinkable group in the polymer chain and / or at the polymer end described above and a crosslinking agent capable of reacting with the crosslinkable group of the polymer to crosslink the polymer chain. Also provided are compositions.
- the present invention also provides a method of using the polymer as a hole transport material for an organic electronic device, for example, an organic EL device. That is, this invention provides the hole transport material for organic electronic devices containing any one of the polymers mentioned above.
- the polymer in this case may be crosslinkable or not crosslinkable, it is preferable that it is a crosslinkable polymer.
- the present invention also provides a method of using a crosslinkable polymer composition comprising a crosslinkable polymer having a crosslinkable group and a crosslinking agent as the hole transport material for an organic electronic device, for example, an organic EL device. That is, this invention provides the hole transport material for organic electronic devices containing the crosslinkable polymer composition mentioned above. Since this material crosslinks a crosslinkable polymer using a crosslinking agent, the film which is insoluble with respect to the organic solvent can be formed.
- the present invention also provides an organic electronic device comprising a cured product of any of the polymers of the present invention described above.
- the polymer of the present invention is contained in one or more organic layers of an organic electronic device, for example, an organic EL device, and the organic layer is, for example, a hole injection layer, a hole transport layer, a light emitting layer, an electron blocking layer, an exciton blocking layer, It may be one or more layers selected from a charge generating layer, a charge transport layer and the like.
- the present invention also provides an organic electronic device comprising a crosslinked polymer obtained from the crosslinkable polymer composition described above.
- the present invention also provides a method for producing an organic electronic device by forming at least one organic layer on a substrate using the polymer of the present invention, the method comprising the steps of: It is formed by the method containing a process.
- the step of crosslinking the crosslinkable group is further included.
- This method also includes a case where one step overlaps with the next step, for example, so that the crosslinking of the crosslinking group starts before the organic solvent completely evaporates.
- the present invention also provides a method for forming an organic electronic device by forming at least one organic layer on a substrate using the crosslinkable polymer composition of the present invention described above, and the method comprises at least one of the organic electronic devices.
- Four organic layers are formed by the method including the following steps.
- This method also includes a case where one step overlaps with the next step so that, for example, the crosslinking between the crosslinkable polymer and the crosslinking group of the crosslinking agent starts before the organic solvent completely evaporates.
- 1 is a diagram showing a typical structure of an organic EL device.
- polymer is used to mean a compound containing two or more repeating units regardless of its molecular weight. Therefore, what is normally called an oligomer is contained in the “polymer” of this invention.
- alkyl group in the present specification includes a linear alkyl group, a branched alkyl group, and a cyclic alkyl (cycloalkyl group).
- linear or branched alkyl groups include methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, tert-butyl, pentyl, hexyl, 2-ethylhexyl, octyl, heptyl, nonyl, decyl, undecylenate Sil, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, and octadecyl groups, and possible linear and branched isomers thereof, including but not limited to these.
- cyclic alkyl groups include cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, and alkyl groups containing these cyclic alkyl partial structures, for example cyclopentylmethyl, cyclopentylethyl, cyclohexylmethyl, cyclohexyl Ethyl group etc. are mentioned, It is not limited to these.
- an "aryl group” refers to an aromatic hydrocarbon group and includes both monocyclic and polycyclic groups.
- aryl groups include phenyl, biphenyl, terphenyl, fluorenyl, spirobifluorenyl, naphthyl, anthracenyl, phenanthryl, acenaphthylenyl, fluoranthhenyl, pyrenyl, chrysenyl, triphenyl
- an aryl group is not limited to these.
- the fluorenyl group is also included in a broad aryl group or a substituted aryl group.
- the "arylene group” refers to a divalent group in which one hydrogen atom is further removed from the "aryl group”.
- heteroaryl group refers to an aromatic heterocyclic group containing one or more hetero atoms as ring constituent atoms
- the heteroaryl group includes both monocyclic and polycyclic groups.
- heteroaryl groups include, for example, indenyl group, benzoindenyl group, pyrrolyl group, indolyl group, carbazolyl group, furanyl group, benzofuranyl group, dibenzofuranyl group (in particular, dibenzofuran-1-yl group, Dibenzofuran-2-yl group, dibenzofuran-3-yl group, and dibenzothiophen-4-yl group), thiophenyl group, benzothiophenyl group, dibenzothiophenyl group (in particular, dibenzothiophen-1-yl group, Dibenzothiophen-2-yl group, dibenzothiophen-3-yl group, and dibenzothiophen-4-yl group), selenophen
- heterocyclic group is also included in the polycyclic aromatic ring, and one of the rings contains a hetero atom as a ring constituent atom.
- heteroarylene group refers to a divalent group in which one hydrogen atom is further removed from the “heteroaryl group”.
- substituted of "substituted or unsubstituted” means that the group to which the term “substitution” is further substituted with one or more arbitrary groups unless otherwise specified, which is used herein. Applies to all substituted groups described.
- the substituent in this case is not particularly limited, but deuterium atom, cyano group, fluorine group, alkyl group having 1 to 30 carbon atoms, aryl group having 6 to 30 ring atoms, heteroaryl group having 5 to 30 ring atoms, Monoarylamino group or diarylamino group (aryl group is an aryl group having 6 to 30 ring atoms), monoheteroarylamino group and diheteroaryl group (heteroaryl group is a heteroaryl group having 5 to 30 ring atoms), Arylheteroarylamino group (aryl group is an aryl group having 6 to 30 ring atoms, heteroaryl group is a heteroaryl group having 5 to 30 ring atoms), trialkylsilyl group (alkyl group is an alkyl group having 1 to 30 carbon atoms) , And a triarylsilyl group (aryl group is an aryl group having 6 to 30 ring atoms) is
- This substituent is a deuterium atom, an aryl group having 6 to 30 ring carbon atoms, a monoarylamino group or a diarylamino group (the aryl group is an aryl group having 6 to 30 ring atoms), and a triarylsilyl group (an aryl group is a ring It is especially preferable to select from the group which consists of an aryl group of 6-30 atoms of constituent atoms).
- alkyl, aryl, and heteroaryl are as described above.
- the "polymer” of this invention contains both an oligomer and a polymer as mentioned above.
- the polymer of this invention is a polymer in which 40-100 mol% of all the repeating units which comprise a polymer consist of repeating units represented by following formula (1).
- the group different from the repeating unit which exists in the terminal of a polymer is not put in the repeating unit which comprises a polymer.
- the polymer obtained when the bisboronic acid ester derivative is excessively used for the dibromo compound The terminal group of is a boronic acid ester group, in which case the boronic acid ester group itself is not called a repeating unit.
- the terminal group becomes a phenyl group, but in this case, the phenyl group constitutes a polymer. Do not put in repeat units. On the other hand, it originates in the compound used as a monomer at the time of a polymer synthesis
- * represents a coupling
- the terminal group may be, for example, a group possessed by the monomer used in the polymerization, a group derived by chemical reaction from the group, or a group derived from the terminal blocking agent when a terminal blocking agent is used.
- R1, R3, R4, R5, R6, and R8 are each independently a hydrogen atom, a deuterium atom, a fluorine atom, a CN group, an NRaRb group (Ra and Rb are independently substituted or unsubstituted C1-30, preferably Is a group consisting of 1 to 12, more preferably 1 to 8, an alkyl group, a substituted or unsubstituted aryl group having 6 to 30 ring atoms, and a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms.
- each aryl group is independently phenyl, biphenyl, terphenyl, fluorenyl, spirobifluorenyl, naphthyl, anthracenyl, phenanthryl, acenaphthylenyl, fluoranthenyl, pyrenyl, chrysenyl, It is preferable that it is a group chosen from triphenylenyl and a perrylenyl group.
- each heteroaryl group is independently an indenyl group, a benzoindenyl group, a pyrrolyl group, an indolyl group, a carbazolyl group, a furanyl group, a benzofuranyl group, a dibenzofuranyl group (in particular, a dibenzofuran-1-yl group, Dibenzofuran-2-yl group, dibenzofuran-3-yl group, and dibenzothiophen-4-yl group), thiophenyl group, benzothiophenyl group, dibenzothiophenyl group (in particular, dibenzothiophen-1-yl group, Dibenzothiophen-2-yl group, dibenzothiophen-3-yl group, and dibenzothiophen-4-yl group), selenophenyl group, benzoselenophenyl group, dibenzoselenophenyl group (especially dibenzoselenophene) -1-yl group
- R4 or R5 is a following formula (A) or (B):
- Ar1 represents a substituted or unsubstituted arylene group having 6 to 30 ring atoms, or a substituted or unsubstituted heteroarylene group having 5 to 30 ring atoms.
- arylene and heteroarylene groups are as described above.
- As an arylene group group especially chosen from phenylene, biphenylene, terphenylene, and naphthylene is preferable.
- Ar2 and Ar3 each independently represent a substituted or unsubstituted aryl group having 6 to 30 ring atoms or a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms.
- aryl group are as described above.
- the polymer of this invention is characterized by including the repeating unit which has an aromatic amino group represented by Formula (A) or (B) as at least one of R ⁇ 4> and R ⁇ 5> represented by said Formula (1).
- R9 and R10 are each independently a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 ring atoms, and a substituted or unsubstituted ring. Or a group selected from the group consisting of a heteroaryl group having 5 to 30 constituent atoms, or R9 and R10 are substituted or unsubstituted with 3 to 10 ring atoms with the carbon atom in formula (1) to which they are bonded; You may form the cycloalkyl ring or you may form the substituted or unsubstituted spirofluorene ring.
- R9 and R10 are alkyl groups, especially unsubstituted alkyl groups, or substituted or unsubstituted aryl groups, or R9 and R10 together preferably form a substituted or unsubstituted spirofluorene ring, and preferably a substituted aryl group and substituted spiro
- a substituent of a fluorene ring a C1-C30, Preferably it is a C1-C12, More preferably, a C1-C8 alkyl group is mentioned.
- a substituted or unsubstituted cycloalkyl ring which R9 and R10 may be formed together a substituted or unsubstituted cyclopropyl, cyclobutyl, cyclopentyl, and cyclohexyl ring can be mentioned.
- the substituent in this case is 1 to 30 carbon atoms, preferably 1 to 12 carbon atoms, more preferably an alkyl group of 1 to 8 carbon atoms, and unsubstituted or 1 to 30 carbon atoms, preferably 1 to 12 carbon atoms, more preferably.
- the aryl group of 6-30 ring structure atoms substituted with the alkyl group of 1-8 is mentioned.
- Ra and Rb are each independently substituted or unsubstituted C1-30, preferably Is a group consisting of 1 to 12, more preferably 1 to 8, an alkyl group, a substituted or unsubstituted aryl group having 6 to 30 ring atoms, and a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms.
- R 1, R 3, R 6, R 8, and R 4 or R 5 not represented by the above formula (A) or (B) are each independently a hydrogen atom, a deuterium atom, or an unsubstituted group. It is a group selected from the group consisting of an alkyl group having 1 to 30, preferably 1 to 12, preferably 1 to 8 carbon atoms, and an unsubstituted aryl group having 6 to 30 ring atoms.
- R9 and R10 are each independently C1-C30, Preferably C1-C12, More preferably, C1-C8 alkyl group, and Unsubstituted or C1-C30, Preferably Preferably a group selected from the group consisting of aryl groups having 6 to 30 ring atoms substituted with 1 to 12, more preferably 1 to 8 alkyl groups, or R9 and R10 are unsubstituted together or have 1 to 30 carbon atoms. It may be preferably forming a spirofluorene ring substituted with 1 to 12, more preferably 1 to 8 alkyl groups.
- Ar 2 and Ar 3 in Formulas (A) and (B) are each unsubstituted or substituted with an alkyl group having 1 to 30, preferably 1 to 12, more preferably 1 to 8 carbon atoms.
- Specific alkyl and aryl groups can be selected from the specific ones described above, but are not limited thereto.
- Preferred examples of the repeating unit represented by formula (1) include the following formulas:
- R9 and R10, Ar1, Ar2, and Ar3 are as having defined in the said Formula (1).
- Particularly preferred R9 and R10 are unsubstituted C1-30, preferably 1-12, more preferably 1-8 alkyl groups, and unsubstituted aryl groups having 6-30 ring members, particularly phenyl groups, It is group selected from a biphenyl group and a naphthyl group.
- R9 and R10 also form an unsubstituted or spirofluorene ring substituted with an alkyl group having 1 to 30, preferably 1 to 12, more preferably 1 to 8 carbon atoms. to be.
- R9 and R10 are as defined for formula (1), Preferably, R9 and R10 are independently an unsubstituted alkyl group having 1 to 8 carbon atoms, a phenyl group, a biphenyl group, or a naphthyl group, or R9 And R 10 together form an unsubstituted or spirofluorene ring substituted with an alkyl group having 1 to 30 carbon atoms, preferably 1 to 12, more preferably 1 to 8 carbon atoms, as described above.
- the polymer of the present invention is, in addition to the repeating unit represented by the formula (1), at least represented by the following formulas (2) to (4), particularly preferably formula (2) It further contains 1 type of repeating unit.
- the sum total of the repeating unit represented by Formula (1) and the repeating unit represented by Formula (2)-(4) becomes like this. Preferably it is 60-100 mol% of the all repeating units which comprise a polymer, More preferably, it is 80- 100 mol%.
- the repeating unit represented by the formula (2) is different in chemical structure from the repeating unit represented by the formula (1).
- * represents a coupling
- R1 ', R3', R4 ', R5', R6 ', and R8' are each independently a hydrogen atom, a deuterium atom, a fluorine atom, a CN group, an NRaRb group (Ra and Rb are independently , Substituted or unsubstituted carbon atoms of 1 to 30, preferably 1 to 12, more preferably 1 to 8 alkyl groups, substituted or unsubstituted aryl groups having 6 to 30 ring atoms, and substituted or unsubstituted A group selected from the group consisting of a heteroaryl group having 5 to 30 ring atoms), a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, preferably 1 to 12, more preferably 1 to 8 carbon atoms, substituted or unsubstituted A group selected from the group consisting of a ring-containing aryl group having 6 to 30 ring atoms and a substituted
- each aryl group is independently phenyl, biphenyl, terphenyl, fluorenyl, spirobifluorenyl, naphthyl, anthracenyl, phenanthryl, acenaphthylenyl, fluoranthhenyl, pyrenyl, chrysenyl, It is preferable that it is a group chosen from triphenylenyl and a perrylenyl group.
- each heteroaryl group is independently an indenyl group, benzoindenyl group, pyrrolyl group, indolyl group, carbazolyl group, furanyl group, benzofuranyl group, dibenzofuranyl group (in particular, dibenzofuran-1-yl group, di Benzofuran-2-yl group, dibenzofuran-3-yl group, and dibenzothiophen-4-yl group), thiophenyl group, benzothiophenyl group, dibenzothiophenyl group (especially dibenzothiophen-1-yl group, di Benzothiophen-2-yl group, dibenzothiophen-3-yl group, and dibenzothiophen-4-yl group), selenophenyl group, benzoselenophenyl group, dibenzoselenophenyl group (especially, dibenzoselenophene- 1-yl group, dibenzoselenophen-2-yl group
- R ⁇ 9> 'and R ⁇ 10>' are each independently substituted or unsubstituted C1-C30, Preferably it is 1-12, More preferably, it is an alkyl group of 1-8, a substituted or unsubstituted ring component atom.
- An aryl group having 6 to 30 atoms and a substituted or unsubstituted heteroaryl group having 5 to 30 atoms, or R 9 'and R 10' are ring-bonded together with the carbon atom in formula (2) to which they are bonded It may form a substituted or unsubstituted cycloalkyl ring having 3 to 10 atoms, or may form a substituted or unsubstituted spirofluorene ring.
- examples of the alkyl group, the aryl group, and the heteroaryl group are as described above.
- R ⁇ 9> 'and R ⁇ 10>' are an alkyl group, especially an unsubstituted alkyl group or a substituted or unsubstituted aryl group, As a substituent of a substituted aryl group, it is C1-C30, Preferably it is 1-12, More preferably, it is 1 And an alkyl group of ⁇ 8.
- Examples of the substituted or unsubstituted cycloalkyl ring which R9 'and R10' may form together with the carbon atom to which they are bonded include substituted or unsubstituted cyclopropyl, cyclobutyl, cyclopentyl, and cyclohexyl ring. have.
- the substituent in this case is 1 to 30 carbon atoms, preferably 1 to 12 carbon atoms, more preferably 1 to 8 alkyl groups, and an aryl group having 6 to 30 ring atoms.
- the repeating unit in the case where R9 'and R10' in formula (2) form a spirofluorene ring together with the carbon atom to which they are bonded is a following formula:
- R1 ', R3', R4 ', R5', R6 ', and R8' are as defined for Formula (2), and Ra 'and Rb' are each independently deuterium, substituted or Unsubstituted carbon atoms of 1 to 30, preferably 1 to 12, more preferably 1 to 8 alkyl groups, substituted or unsubstituted aryl groups having 6 to 30 ring atoms, and substituted or unsubstituted ring members
- a group selected from the group consisting of a number of 5 to 30 heteroaryl groups, p 'and q' respectively represent the number of Ra 'and Rb' substituents and are independently 0 to 4)
- R1 ', R3', R4 ', R5', R6 ', and R8' are respectively independently a hydrogen atom, a deuterium atom, and A group selected from the group consisting of an unsubstituted or aryl group having 6 to 30 ring atoms substituted with an alkyl group having 1 to 30, preferably 1 to 12, particularly preferably 1 to 8 carbon atoms;
- R 9 'and R 10' are each independently unsubstituted C1-30, preferably 1-12, particularly preferably 1-8 alkyl groups, or unsubstituted or 1-30 carbon atoms, preferably 1 ⁇ 12, more preferably an aryl group having 6 to 30 ring atoms substituted with an alkyl group of 1 to 8, or R 9 ′ and R 10 ′ are unsubstituted with 1 to 8 carbon atoms 30, preferably 1 to 12, more preferably form a cycloalkyl ring having 3 to 6 ring atoms substituted with an alkyl group of 1 to 8, unsubstituted or 1 to 30 carbon atoms, preferably 1 It is preferable to form the spirofluorene ring substituted by -12, More preferably, the alkyl group of 1-8.
- * represents a coupling
- the terminal group may be, for example, a group possessed by the monomer used in the polymerization, a group derived from a known chemical reaction from the group, or a group derived from the terminal blocking agent when a terminal blocking agent is used.
- Ar12 represents a substituted or unsubstituted aryl group having 6 to 30 ring atoms, or a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms.
- Ar11 and Ar21 each independently represent a substituted or unsubstituted arylene group having 6 to 30 ring atoms.
- each aryl group is independently phenyl, biphenyl, terphenyl, fluorenyl, spirobifluorenyl, naphthyl, anthracenyl, phenanthryl, acenaphthylenyl, fluoranthhenyl, pyrenyl, chrysenyl, It is preferable that it is a group chosen from triphenylenyl and a perrylenyl group.
- each heteroaryl group is independently an indenyl group, benzoindenyl group, pyrrolyl group, indolyl group, carbazolyl group, furanyl group, benzofuranyl group, dibenzofuranyl group (in particular, dibenzofuran-1-yl group, di Benzofuran-2-yl group, dibenzofuran-3-yl group, and dibenzothiophen-4-yl group), thiophenyl group, benzothiophenyl group, dibenzothiophenyl group (especially dibenzothiophen-1-yl group, di Benzothiophen-2-yl group, dibenzothiophen-3-yl group, and dibenzothiophen-4-yl group), selenophenyl group, benzoselenophenyl group, dibenzoselenophenyl group (especially, dibenzoselenophene- 1-yl group, dibenzoselenophen-2-yl group
- * represents a coupling
- Ar12 and Ar22 each independently represent a substituted or unsubstituted aryl group having 6 to 30 ring atoms, or a substituted or unsubstituted heteroaryl group having 5 to 30 ring atoms;
- Ar11, Ar21, and Ar31 are Each independently represents a substituted or unsubstituted arylene group having 6 to 30 ring atoms.
- the repeating unit represented by the above formula (4) may be a repeating unit, a part or all of which is represented by the following formula (5).
- Ar11 and Ar21 and Ar12 and Ar22 have the meaning defined by said Formula (4).
- R1 ', R3', R4 ', R5', R6 ', R8', R9 ', and R10' have the meaning defined in the formula (2).
- the repeating units represented by the formula (5) are also included in the repeating units represented by the formulas (1) to (4) (even if not specifically mentioned), and this point is described below.
- any repeating unit may be included.
- additional repeating units include Japanese Patent Application Laid-Open No. 2015-519424 (International Publication No. 2013/156125), Japanese Patent Application Laid-Open No. 2015-516487 (International Publication No. 2013/156129), and Japanese Patent Application Laid-Open No. 2015-514839.
- repeating units of polymers described in International Publication No. 2013/05798 and / or International Publication No. 2016/047536 may be mentioned, but are not limited thereto.
- the repeating unit which has a crosslinking group for crosslinking polymer chains can also be used.
- a particularly preferable one is a repeating unit represented by formula (2) as the repeating unit represented by formulas (2) to (4) in addition to the repeating unit represented by formula (1) of (ii). It contains only units.
- the polymer of this invention consists only of the repeating unit of Formula (1) and Formula (2), or in addition to the repeating unit of Formula (1) and Formula (2), Formula (3) and (4) Other repeating units may be included.
- the polymer chain containing a repeating unit of formula (1) and at least one repeating unit represented by formulas (2) to (4), the polymer chain,
- the repeating unit represented by Formula (2) are comprised alternately connected, or
- the polymer chain is formed by alternately connecting a repeating unit represented by formula (1) and at least one repeating unit represented by formulas (2) to (4), preferably a repeating unit represented by formula (2) It is desirable to include blocks that are present.
- the polymer of the present invention includes a repeating unit having a crosslinkable group for crosslinking the polymer chains in the polymer chain, a crosslinkable group for crosslinking the polymer chains at the polymer terminal, or It can be included in combination. Therefore, the polymer in this case is a crosslinkable polymer which has a crosslinkable group. As for crosslinking in this case, crosslinking by a covalent bond is preferable.
- crosslinkable group which can be used for the polymer of this invention
- Paragraph 0089 of Unexamined-Japanese-Patent No. 2015-519424-0115, Paragraph 0128-0149 of Unexamined-Japanese-Patent No. 2015-516487, and International Publication No. 2016, for example are mentioned. Any of those described on page 11 of / 047536 may be used, but is not limited thereto.
- Particularly preferred examples of the crosslinkable group for crosslinking the polymer chains of the polymer of the present invention include an alkenyl group and the following formula:
- Groups or combinations thereof. These groups introduce
- the crosslinkable group can be introduced into the polymer chain by converting to.
- a method of introducing a benzocyclobutene group as the terminal end group of the polymer for example, a method using a compound such as compound MM1 or MM2 having a benzocyclobutene group described in US Patent Application Publication No.
- R1 ', R3', R4 ', R5', R6 ', R8', R9 ', and R10' of the repeating unit represented by these has a crosslinkable group.
- the kind of crosslinkable group is not specifically limited, Alkenyl group, especially a terminal alkenyl group, and / or a benzocyclobutene group are preferable.
- R1 ', R3', R4 ', R5', R6 ', R8', R9 ', and R10' other than a crosslinkable group have the meaning prescribed
- the repeating unit which has a crosslinkable group is It does not include in the repeating unit of Formula (2).
- the method for producing the polymer of the present invention can be carried out using a known chemical reaction in the art, and the method is not particularly limited, but for example, the "*" of the repeating unit represented by the formulas (1) to (5).
- the polymer of this invention can be manufactured by preparing the monomer which has the functional group which can couple
- Such coupling reactions include a method of forming a carbon-carbon bond by coupling an aryl dihalide and an aryldiboronic acid ester described in Japanese Patent Application Laid-Open No. 2015-519424 and the like as a prior art document using a palladium catalyst.
- a compound having one functional group capable of performing the above-mentioned coupling reaction is used as a terminal blocker, and the terminal group is introduced by reacting it with the polymer terminal at the end of the polymerization step. can do.
- a crosslinkable group can be introduced into the polymer terminal by using a terminal blocker having a crosslinkable group together with a functional group involved in the coupling reaction.
- control of the degree of polymerization of the polymer of this invention ie, control of the average number of repeating units contained in 1 molecule of polymers, can be performed by adjusting the molar ratio of the heterogeneous monomer to be used.
- the terminal group of the polymer of the present invention may be, for example, a group possessed by the monomer used for polymerization, a group derived by a chemical reaction from the group, or a group derived from the terminal blocker when a terminal blocker is used.
- the terminal blocking agent of the polymer is a compound for introducing the above-described benzocyclobutene group or alkenyl group into the polymer terminal or, for example, the formulas described in paragraphs 0221 and 11 described in International Publication No. 2016/047536 ( The compound represented by 1M), the boronic acid derivative of benzocyclobutene, bromomer, etc. described in the Example of Unexamined-Japanese-Patent No.
- 2013/057908 may be sufficient.
- the polymer terminal blocking agent having no crosslinkable group include aryl monoboronic acid and aryl monobromide, and for example, phenylboronic acid described in paragraph 0470 of US Patent Application Publication No. 2017/0283546. Can be mentioned.
- the molecular weight of the polymer according to the present invention is not particularly limited.
- the number of repeating units of the polymer is preferably 10 to 1000 per molecule of polymer, but is not particularly limited to this range.
- the number of repeating units which an average molecule of a polymer has is averaged, when the method of synthesizing a polymer using the coupling reaction of the arylbisboronic acid ester and aryl dihalide described in the Example of this specification is used, the polymer From the molar ratio of each monomer used when synthesize
- the stoichiometrically used reactors exist at both ends of each polymer molecule, so that half the number of moles of the excess reactor is the polymer molecule. It is considered to be equal to the number of minutes. From the number of moles of this polymer molecule and the number of moles of the monomer used in the polymerization reaction, the average value of the repeating units contained per molecule of the polymer can be obtained. As for the polymer of this invention, it is preferable that the number of repeating units per molecule calculated
- the polymer of the present invention may or may not have a crosslinkable group in the polymer chain and / or at the polymer end, when the polymer of the present invention has a crosslinkable group, the polymer can react with the crosslinkable group to crosslink the polymer chain. You may use as a curable polymer composition combining the crosslinking agent and the polymer of this invention.
- the polymer of the present invention has a crosslinkable group capable of self-crosslinking or a combination of two or more crosslinkable groups capable of causing a crosslinking reaction, for example, the polymer has an alkenyl group and a benzocyclobutene group, the use of a crosslinking agent must be used.
- a crosslinking agent for example, a compound having two or more groups independently selected from benzocyclobutene groups and alkenyl groups in one molecule may be used, and for example, two benzocyclobutene groups in one molecule may be used.
- the compound etc. which have two alkenyl groups in 1 molecule are mentioned.
- the compound which has two or more alkenyl groups in 1 molecule can be used as a crosslinking agent.
- the polymer of the present invention has a crosslinkable group
- a compound capable of reacting with the crosslinkable group of the polymer to form a chemical bond to crosslink the polymer chain can be used as a crosslinking agent of the polymer.
- Which hardener is used can be easily determined by one skilled in the art based on common knowledge.
- the crosslinkable group known to be capable of crosslinking reaction by irradiation with electron beam, ultraviolet ray, X-ray, microwave or the like the above-described energy ray irradiation may be performed instead of the use of the crosslinking agent or with the use of the crosslinking agent.
- the present invention provides a crosslinkable polymer comprising a crosslinkable polymer having a crosslinkable group in the polymer chain and / or at the polymer end as described above and a crosslinking agent capable of reacting with the crosslinkable group of the polymer to crosslink the polymer chain.
- compositions are also provided.
- this crosslinkable polymer composition is apply
- the polymer of this invention has an arylamino group in a side chain, and can be used as a hole transport material for hole transport materials, especially an organic electronic device, especially an organic EL device. Therefore, this invention also provides the organic electronic device containing the polymer mentioned above as a hole transport material.
- the organic layer which can use the polymer of the present invention may be, for example, one or more layers selected from a hole injection layer, a hole transport layer, a light emitting layer, an electron blocking layer, an exciton blocking layer, a charge generating layer, a charge transport layer, and the like. When using the polymer of this invention for a light emitting layer, it can use as a host material.
- the polymer of this invention has a crosslinkable group, an organic layer excellent in the organic solvent resistance containing a crosslinked polymer can be formed by crosslinking a polymer in the organic layer of an organic electronic device.
- the polymer having an arylamino group of the present invention is suitable for use as a hole transport material, especially as a hole transport material for organic electronic devices.
- a hole transport material for organic electronic devices especially as an organic electronic device, an organic electroluminescent device (organic EL device) is preferable.
- the present invention also provides a method of using the polymer as a hole transport material for an organic electronic device, particularly an organic EL device.
- the crosslinkable polymer or the crosslinkable polymer may not be sufficient as the polymer of this invention for using as a hole transport material in an organic electronic device, it is preferable that it is a crosslinkable polymer.
- crosslinking the polymer can form a film substantially insoluble in the organic solvent, even when a new organic layer is laminated on the organic layer formed of the polymer, even when a solution method using an organic solvent, for example, a spin coating method is used,
- the adverse effect which a polymer layer receives from an organic solvent can be eliminated, or an adverse effect can be reduced.
- the crosslinkable polymer composition containing the polymer of this invention and a crosslinking agent is prepared, and the solution of this composition, generally the solution melt
- the organic electronic device in which the polymer of the present invention is used may be any electronic device known in the art using an organic material, and is not limited to a specific electronic device, but may be an organic light emitting device, an organic solar cell, or an organic photoconductor (OPC). And a device selected from the group consisting of a drum and an organic transistor. It is preferable that especially the device of this invention is an organic light emitting device, especially an organic EL device.
- the polymer of the formula (1) of the present invention is useful as a hole transport material for use in an organic electronic device.
- the hole transport material of the present invention can be included in one or more organic layers of an organic electronic device, and the organic layer includes a hole injection layer, a hole transport layer, a light emitting layer, in particular a host material of the light emitting layer, an electron blocking layer, and an exciton blocking layer, and And a charge generating layer and a charge transporting layer.
- Organic electroluminescence device organic EL device
- the organic EL device generally includes a first electrode and a second electrode and at least one organic layer disposed therebetween, and at least one of the first electrode and the second electrode is a light transmissive electrode.
- a voltage is applied between these two electrodes to inject holes from the anode into the organic layer, and electrons are injected from the cathode, the holes and electrons recombine in the organic material layer, and are contained in the organic material layer using energy of excitons generated by recombination.
- the luminous material which emits light emits.
- the organic EL device has a structure in which light emission from the organic material layer is taken out from the light transmissive electrode side.
- the device structure of the organic EL device is not limited to one, and various device structures have been proposed.
- the organic material layer of the organic EL device of the present invention may be a single layer structure composed of one layer or a multilayer structure of two or more layers including a light emitting layer.
- a multilayer structure for example, a structure in which a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, or the like is laminated may be used.
- the polymer of the formula (1) of the present invention can be used in organic EL devices of all light emission methods and structures. Therefore, in the organic electroluminescent device containing the polymer of Formula (1) of this invention, the system of light emission and a device structure are not limited to a specific thing.
- the organic EL device is known to be fluorescent, phosphorescent and delayed fluorescent according to the light emitting mechanism of the light emitting material, but the polymer of the formula (1) of the present invention can be applied to any type of organic EL device. Can be used
- FIG. 1 is a substrate
- 2 is an anode
- 3 is a hole injection layer
- 4 is a hole transport layer
- 5 is an organic light emitting layer
- 6 is an electron transport layer
- 7 is a cathode.
- the organic electroluminescent device of the structure as shown in FIG. 1 is called organic electroluminescent device of a forward structure.
- the organic EL device of the present invention may have such a forward structure, but the organic EL device is not limited to this structure, and the organic EL device having a reverse structure, that is, a substrate, a cathode, an electron transport layer, an organic light emitting layer, a hole transport layer, a hole injection layer, and an anode You may have a structure laminated sequentially. In addition, some of these organic layers may be omitted. Moreover, the organic EL device of this invention is not limited to the thing of the device structure mentioned above, You may have any well-known device structure as a structure of organic EL device.
- the polymer of the formula (1) of the present invention is a hole injection layer for injecting holes from an electrode into an organic layer in an organic electronic device, a hole transport layer for transporting holes in an organic layer, and a hole injection and transport layer having both functions. It can be used as an organic material for injecting and / or transporting holes. Moreover, the polymer of Formula (1) can also be used as a material of an electron blocking layer, a material of an exciton blocking layer, and / or a host material of a light emitting layer.
- the polymer of formula (1) is one or more layers selected from a hole injection layer, a hole transport layer, a light emitting layer, an electron blocking layer, and an exciton blocking layer It can be used as a material for forming a.
- the polymer of this invention when using the polymer of this invention for a light emitting layer, it is preferable to use as a host material with respect to a light emitting dopant.
- the organic EL device according to the present invention can be manufactured using a known method for producing an organic EL device and a material used for an organic EL device, provided that the polymer of formula (1) is used in an organic layer.
- the organic EL device according to the present invention uses a physical vapor deposition (PVD) method, such as sputtering or electron beam deposition, to deposit a metal, an alloy, or a metal oxide having conductivity, and a combination thereof, on the substrate to the anode.
- PVD physical vapor deposition
- sputtering or electron beam deposition to deposit a metal, an alloy, or a metal oxide having conductivity, and a combination thereof, on the substrate to the anode.
- an organic material layer including at least one layer selected from among a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and the like, and then depositing a material which can be used as a cathode thereon.
- the organic EL device may be made by sequentially depositing a cathode material, an organic material layer, and an anode material on a substrate. It is also possible to omit some of the organic material layers described above and to add organic material layers other than those described above.
- the material for the anode it is usually preferable to use a material having a large work function to facilitate hole injection into the organic material layer.
- the anode material used in the present invention include metals such as vanadium, chromium, copper, zinc and gold, or alloys thereof; zinc oxide, indium oxide, indium tin oxide (ITO), indium zinc oxide (IZO), and the like.
- the material for the cathode it is usually preferable to use a material having a small work function to facilitate electron injection into the organic material layer.
- the cathode material include metals such as magnesium, calcium, sodium, potassium, titanium, indium, yttrium, lithium, gadolinium, aluminum, silver, tin and lead or alloys thereof; LiF / Al or LiO 2 / Al and the like. Although the substance of a multilayer structure etc. are mentioned, It is not limited to these.
- the polymer of Formula (1) of this invention may be used, when using the polymer of Formula (1) for a positive hole transport layer, a light emitting layer, etc., together with the polymer of Formula (1) or Formula ( Instead of the polymer of 1), compounds other than the polymer of the formula (1) may be used as the material of the hole injection layer.
- the hole injection material is a material capable of smoothly receiving holes from the anode at a low voltage, and has a maximum peak orbit (HOMO) of the hole injection material opposite to the anode adjacent to the work function of the anode material and the hole injection layer. It is preferable that it is between HOMO of an organic material layer.
- the hole injection material examples include metal porphyrins, oligothiophenes, arylamine-based organics, hexanitrile hexaazatriphenylene-based organics, quinacridone-based organics, perylene-based organics, anthraquinones and polyaniline and polythiophene.
- a conductive polymer of the type etc. are mentioned, It is not limited to these.
- a material of a hole transport layer although the polymer of Formula (1) of this invention may be used, when using the polymer of Formula (1) for a hole injection layer, a light emitting layer, etc., together with the polymer of Formula (1) or a formula ( Instead of the polymer of 1), compounds other than the polymer of the formula (1) may be used as the material for the hole transport layer.
- the hole transport material is a material capable of moving holes to the light emitting layer by receiving holes from the anode or the hole injection layer, and a material having a high hole mobility is suitable.
- arylamine compound examples include an arylamine compound; a carbazole compound; an anthracene compound; a pyrene compound; a conductive polymer, and a block copolymer in which a conjugated portion and a nonconjugated portion are present. It is not limited.
- the light emitting material is a material capable of receiving holes and electrons transported from the hole transporting layer and the electron transporting layer, recombining them, and emitting light in the visible light region using the energy of excitons generated, and good quantum efficiency for fluorescence or phosphorescence emission.
- the luminescent material examples include 8-hydroxy-quinoline aluminum complex (Alq 3 ); carbazole compound; dimerized styryl compound; bis-methyl-8-hydroxyquinoline paraphenylphenol aluminum complex (Balq); 10 -Hydroxybenzoquinoline metal compound; benzoxazole, benzothiazole and benzoimidazole-based compound; anthracene-based compound; pyrene-based compound; poly (p-phenylenevinylene) (PPV) -based polymer; spiro (spiro) compounds; polyfluorene, rubrene; and perylene compounds; and the like, but are not limited to these.
- Alq 3 8-hydroxy-quinoline aluminum complex
- carbazole compound dimerized styryl compound
- 10 -Hydroxybenzoquinoline metal compound benzoxazole, benzothiazole and benzoimidazole-based compound
- the light emitting layer may be formed of only a light emitting material, or may be formed by using the light emitting material as a light emitting dopant in combination with a host material. It is a well known method to use a light emitting material in combination with a host material in an organic EL device.
- the electron transporting material a material capable of smoothly receiving the injection of electrons from the cathode and moving it to the light emitting layer, and preferably using a substance having a high electron mobility.
- the electron transporting material include Al complexes of 8-hydroxyquinoline; complexes containing Alq 3 ; organic radical compounds; hydroxyflavone-metal complexes; anthracene-based compounds; pyrene-based compounds; benzoxazole and benzo Thiazole and benzoimidazole-based compounds; pyridine-based compounds; phenanthroline-based compounds; quinoline-based compounds; quinazoline-based compounds and the like, but are not limited thereto.
- a planarization layer for planarizing the electrode surface as needed a layer selected from a hole blocking layer, an electron blocking layer, and an exciton blocking layer for confinement to an organic layer intended for holes, electrons, and excitons; It can also be used for an organic EL device, and such a technique is a well-known technique.
- the well-known technique regarding organic electroluminescent device can be applied to the organic electroluminescent device containing the polymer of Formula (1) of this invention.
- a method for forming the organic material layer of the organic electronic device a method known in the art may be used.
- a solution method such as spin coating, dip coating, doctor blade coating, screen printing, inkjet printing, or thermal transfer may be used as a method of forming an organic layer. .
- the organic layer containing the polymer of this invention it is preferable to use the solution method. Therefore, in one method of manufacturing the organic electronic device which contains the polymer of this invention in an organic layer, it is preferable to form at least 1 organic layer of an organic electronic device by the method including the following processes.
- the polymer contains a crosslinking group, further crosslinking the crosslinking group.
- a thickness of a "thin film” is not specifically limited, It is the thickness required in the organic film which comprises an organic electronic device.
- Another method of forming the organic layer comprising the polymer of the present invention for producing an organic electronic device is to use one or more organic layers on a substrate using the curable polymer composition comprising the crosslinkable polymer and crosslinking agent of the present invention described above. It is a method of forming. In this method, it is preferable to form at least one organic layer of an organic electronic device by the method containing the following processes.
- the organic solvent for dissolving the polymer or the polymer and the crosslinking agent is not particularly limited, and any organic solvent capable of dissolving the target polymer or polymer and the crosslinking agent can be used.
- the organic solvent that can be used include a hydrocarbon solvent such as toluene and xylene, an ether solvent such as tetrahydrofuran and ethylene glycol di, provided that the polymer or the polymer and the crosslinking agent can be dissolved.
- Ketone solvents such as ethyl ether,
- ethyl solvent such as methyl ethyl ketone
- ethyl acetate ethyl acetate, butyl acetate, etc., or a mixture thereof is mentioned.
- a method of applying the organic solution of the polymer or the polymer composition onto the substrate methods such as the above-described solution method, for example, spin coating method and inkjet printing method, can be used, but are not limited thereto.
- the method of evaporating an organic solvent is not specifically limited, For example, the method of heating under normal pressure or reduced pressure, or the method of evaporating a solvent at normal temperature under normal pressure or reduced pressure is mentioned.
- the method and conditions for crosslinking the crosslinkable group of the polymer or the method and conditions for advancing the reaction between the polymer and the crosslinking agent known methods and conditions can be used depending on the type of the crosslinkable group.
- a method of heating a polymer or a film containing a polymer and a crosslinking agent there may be mentioned a method of heating a polymer or a film containing a polymer and a crosslinking agent, and a method of irradiating an electron beam, ultraviolet ray, X-ray, microwave or the like to the film containing the polymer. .
- the crosslinking reaction when the crosslinkable group crosslinks by heating, the crosslinking reaction may proceed even in a step of evaporating the organic solvent by heating. Therefore, the formation method of the said organic layer includes the case where one or more process progresses overlapping with the next process.
- the polymer of the formula (1) according to the present invention is not limited to the organic EL device described above by using the hole transporting property, and other organic electronic devices such as organic solar cells, organic photoconductors, organic light sensors, It can be used as a material for devices such as organic transistors.
- organic electronic devices such as organic solar cells, organic photoconductors, organic light sensors.
- the operating principle and device structure of these devices are known in the art.
- reaction mixture was stirred at -70 ° C for another 1 hour. 21.8 g of benzophenone (119 mmol) was then dissolved in 100 ml of THF, and the resulting solution was added dropwise to the reaction mixture at -70 ° C. At the end of the addition, the reaction mixture was slowly warmed up to room temperature, inactivated with NH 4 Cl, and then the solvent was evaporated with a rotary evaporator. 510 ml of acetic acid were carefully added to the liquid from which the solvent was evaporated, and 100 ml of fuming hydrochloric acid was next added.
- reaction mixture was heated to 75 ° C. and maintained at this temperature for 4 hours. A white solid precipitated during this time. The reaction mixture was then cooled to room temperature, and the precipitated solid was separated by suction filtration and washed with methanol.
- reaction mixture was then partitioned between toluene and water, the organic phase washed three times with water, dried over Na 2 SO 4 and filtered, and the solvent was evaporated with a rotary evaporator.
- reaction mixture was filtered through celite at room temperature.
- the solvent was removed under reduced pressure and the remaining solid was recrystallized from acetonitrile.
- the generated solid was separated by filtration and dried in vacuo.
- reaction mixture was filtered through celite at room temperature.
- the solvent was removed under reduced pressure and the remaining solid was recrystallized from acetonitrile.
- the generated solid was separated by filtration and dried in vacuo.
- MM11 to MM15 were used to synthesize the polymer of the present invention. These compounds are described in the specification of US Patent Application Publication No. 2017/0283546 A1, and for the synthesis thereof, etc., see the publication.
- MM1 has the following formula:
- the reaction vessel was placed under an inert gas atmosphere, and Compound MM11 (1.3 g, 1.43 mmol), Compound A (0.7 g, 1.45 mmol), Compound MM13 (70 mg, 0.152 mmol), Compound MM15 (80 mg, 0.151 mmol), and dichlorobis (Tris-o-methoxyphenylphosphine) palladium (1.3 mg) and toluene (42 ml) were added and the mixture was heated to 105 ° C.
- Compound MM11 1.3 g, 1.43 mmol
- Compound A 0.7 g, 1.45 mmol
- Compound MM13 70 mg, 0.152 mmol
- Compound MM15 80 mg, 0.151 mmol
- dichlorobis Tris-o-methoxyphenylphosphine
- reaction solution was cooled, washed once with water, twice with 10% by mass aqueous hydrochloric acid solution, twice with 3% by mass ammonia aqueous solution, and twice with water, and the resulting solution was added dropwise into methanol to precipitate.
- the precipitate was dissolved in toluene and purified by passing the solution through an alumina column and a silica gel column in this order.
- the obtained solution was added dropwise in methanol, the mixture was stirred, and the resulting precipitate was isolated by filtration and dried.
- the yield of polymer 1 was 1.4 g.
- the calculated value of the average repeating unit number per molecule of the obtained polymer is 10. Moreover, the ratio of the repeating unit (compound A) of Formula (1) contained in all the repeating units in a polymer is 45.6 mol%. Moreover, the ratio of the repeating unit (compounds A and MM11) of Formula (1) and (2) contained in all the repeating units in a polymer is 90.5 mol%.
- reaction solution was cooled, washed once with water, twice with 10% by mass aqueous hydrochloric acid solution, twice with 3% by mass ammonia aqueous solution, and twice with water, and the resulting solution was added dropwise into methanol to precipitate.
- the precipitate was dissolved in toluene and purified by passing the solution through an alumina column and a silica gel column in this order.
- the obtained solution was added dropwise in methanol, the mixture was stirred, and the resulting precipitate was isolated by filtration and dried.
- the yield of polymer 2 was 1.5 g.
- the calculated value of the average repeating unit number per molecule of the obtained polymer is 34.7.
- the ratio of the repeating unit (compound B) of Formula (1) contained in all the repeating units in a polymer is 48.5 mol%.
- the ratio of the repeating unit (compounds B and MM14) of Formula (1) and (2) contained in all the repeating units in a polymer is 90.1 mol%.
- the reaction vessel was placed under an inert gas atmosphere, and Compound MM11 (1.3 g, 1.43 mmol), Compound C (0.8 g, 1.27 mmol), Compound MM13 (70 mg, 0.152 mmol), Compound MM15 (80 mg, 0.151 mmol), Dichlorobis (Tris-o-methoxyphenylphosphine) palladium (1.3 mg) and toluene (42 ml) were added and the mixture was heated to 105 ° C.
- Compound MM11 1.3 g, 1.43 mmol
- Compound C 0.8 g, 1.27 mmol
- Compound MM13 70 mg, 0.152 mmol
- Compound MM15 80 mg, 0.151 mmol
- Dichlorobis Tris-o-methoxyphenylphosphine
- reaction solution was cooled, washed once with water, twice with 10% by mass aqueous hydrochloric acid solution, twice with 3% by mass ammonia aqueous solution, and twice with water, and the resulting solution was added dropwise into methanol to precipitate.
- the precipitate was dissolved in toluene and purified by passing the solution through an alumina column and a silica gel column in this order.
- the obtained solution was added dropwise in methanol, the mixture was stirred, and the resulting precipitate was isolated by filtration and dried.
- the yield of polymer 3 was 1.4 g.
- the calculated value of the average repeating unit number per molecule of the obtained polymer is 21.6. Moreover, the ratio of the repeating unit (compound C) of Formula (1) contained in all the repeating units in a polymer is 42.3 mol%. Moreover, the ratio of the repeating unit (compounds C and MM11) of Formula (1) and (2) contained in all the repeating units in a polymer is 89.9 mol%.
- reaction solution was cooled, washed once with water, twice with 10% by mass aqueous hydrochloric acid solution, twice with 3% by mass ammonia aqueous solution, and twice with water, and the resulting solution was added dropwise into methanol to precipitate.
- the precipitate was dissolved in toluene and purified by passing the solution through an alumina column and a silica gel column in this order.
- the obtained solution was added dropwise in methanol, the mixture was stirred, and the resulting precipitate was isolated by filtration and dried.
- the yield of polymer 4 was 1.3 g.
- the calculated value of the average repeating unit number per molecule of the obtained polymer is 28.6.
- the ratio of the repeating unit (compound D) of Formula (1) contained in all the repeating units in a polymer is 48.1 mol%.
- the ratio of the repeating unit (compounds D and MM14) of Formula (1) and (2) contained in all the repeating units in a polymer is 90.1 mol%.
- the inside of the reaction vessel was placed under an inert gas atmosphere, and Compound B (1.1 g, 1.49 mmol), Compound A (0.7 g, 1.45 mmol), Compound MM13 (70 mg, 0.152 mmol), Compound MM15 (80 mg, 0.151 mmol), and dichlorobis (Tris-o-methoxyphenylphosphine) palladium (1.3 mg) and toluene (42 ml) were added and the mixture was heated to 105 ° C.
- Compound B 1.1 g, 1.49 mmol
- Compound A 0.7 g, 1.45 mmol
- Compound MM13 70 mg, 0.152 mmol
- Compound MM15 80 mg, 0.151 mmol
- dichlorobis Tris-o-methoxyphenylphosphine
- reaction solution was cooled, washed once with water, twice with 10% by mass aqueous hydrochloric acid solution, twice with 3% by mass ammonia aqueous solution, and twice with water, and the resulting solution was added dropwise into methanol to precipitate.
- the precipitate was dissolved in toluene and purified by passing the solution through an alumina column and a silica gel column in this order.
- the obtained solution was added dropwise in methanol, the mixture was stirred, and the resulting precipitate was isolated by filtration and dried.
- the yield of polymer 5 was 1.0 g.
- the calculated value of the average repeating unit number per molecule of the obtained polymer is 12.5. Moreover, the ratio of the repeating unit (compound A and compound B) of Formula (1) contained in all the repeating units in a polymer is 90.7 mol%. Moreover, the ratio of the repeating unit (compounds A and B) of Formula (1) and (2) contained in all the repeating units in a polymer is 90.7 mol%.
- the reaction vessel was placed under an inert gas atmosphere, and Compound MM11 (1.3 g, 1.43 mmol), Compound MM12 (1.1 g, 1.21 mmol), Compound MM13 (70 mg, 0.152 mmol), Compound MM15 (80 mg, 0.151 mmol), Dichlorobis (Tris-o-methoxyphenylphosphine) palladium (1.3 mg) and toluene (42 ml) were added and the mixture was heated to 105 ° C.
- Compound MM11 1.3 g, 1.43 mmol
- Compound MM12 1.1 g, 1.21 mmol
- Compound MM13 70 mg, 0.152 mmol
- Compound MM15 80 mg, 0.151 mmol
- Dichlorobis Tris-o-methoxyphenylphosphine
- reaction solution was cooled, washed once with water, twice with 10% by mass aqueous hydrochloric acid solution, twice with 3% by mass ammonia aqueous solution, and twice with water, and the resulting solution was added dropwise into methanol to precipitate.
- the precipitate was dissolved in toluene and purified by passing the solution through an alumina column and a silica gel column in this order.
- the obtained solution was added dropwise in methanol, the mixture was stirred, and the resulting precipitate was isolated by filtration and dried.
- the calculated value of the average repeating unit number per molecule of the obtained polymer is 37.9.
- This reference polymer contains an aromatic amine structure in the polymer main chain, but does not have an aromatic amino group in the polymer side chain.
- the composition for forming a hole injection layer was coated by the spin coating method on the glass panel in which the ITO anode was formed, and the coating film which has a film thickness of 60 nm was obtained.
- substrate with this coating film was heated at 200 degreeC for 10 minutes, after making the coating film insoluble, it was left to cool to room temperature naturally, and the hole injection layer was obtained.
- the composition used for forming the hole injection layer was a PEDOT: PSS aqueous solution (poly (3,4-ethylenedioxythiophene): polystyrenesulfonic acid, product name: Baytron) obtained from Starck-V Tech.
- the polymer 1 and xylene were mixed so that the polymer 1 concentration might be 0.7 mass%, and the composition for forming a positive hole transport layer was obtained.
- the hole injection layer was coated with a composition for forming a hole transport layer by spin coating to obtain a coating film having a thickness of 20 nm.
- the substrate on which the coating film was formed was heated at 180 ° C. for 60 minutes to insolubilize the coating film, and then allowed to cool to room temperature naturally to obtain a hole transport layer.
- ADN 9,10-di (2-naphthyl) anthracene
- D1 1,6-bis (N, N-diphenylamino) pyrene
- xylene 1.3 It mixed so that it might become ADN concentration of mass% and D1 concentration of 0.05 mass%, and obtained the composition for forming a light emitting layer.
- the hole transport layer of the substrate including the anode, the hole injection layer, and the hole transport layer obtained above was coated by the spin coating method with the composition for forming the light emitting layer described above to obtain a coating film having a thickness of 60 nm.
- substrate with this coating film was heated at 130 degreeC for 20 minutes, after evaporating a solvent, it was left to cool to room temperature naturally and the light emitting layer was obtained.
- a deposition apparatus for forming an electron transport layer from about 10 -4 to were deposited one by one electron transport layer in a vacuum degree of about 10 -5 Pa.
- the electron transport layer was formed with a layer thickness of about 25 nm using Alq 3 (tris (8-quinolinato) aluminum).
- the substrate is transferred to a deposition apparatus for forming a metal layer, and the electron injection layer and the second electrode are deposited at a vacuum degree of about 10 ⁇ 4 to about 10 ⁇ 5 Pa, thereby producing an organic EL device.
- the electron injection layer was formed with a layer thickness of about 1 nm using lithium fluoride (LiF), and the second electrode was formed with a thickness of about 100 nm using aluminum (Al).
- the organic electroluminescent device of Example 1 was produced.
- the organic EL device of Examples 2-5 was produced by performing the process substantially the same as the process of Example 1 except having formed the hole transport layer using either of polymers 2-5 instead of the polymer 1.
- An organic EL device of Comparative Example 1 was produced by carrying out the same steps as those described in Example 1, except that the hole transport layer was formed by using the reference polymer instead of the polymer 1.
- Table 1 shows the evaluation results of the respective organic EL devices produced in Examples 1 to 5 and Comparative Example 1.
- the light emission characteristic of the produced organic electroluminescent device was evaluated by the current density of 10 mA / cm ⁇ 2> using C9920-11 luminance light distribution characteristic measuring apparatus of Hamamatsu Photonics.
- the LT95 represents the time until the luminance of the device reaches a value of 95% of the initial luminance, and the larger the value, the longer the lifetime of the device can be estimated.
- the lifespan of the organic EL device according to Examples 1 to 5 of the present invention in which the hole transport layer is formed using the polymers 1 to 5 according to the embodiment disclosed in the present specification is that of Comparative Example 1 It can be seen that it is significantly improved compared to the life of the device.
- the compound of the present invention can be used as a hole transporting material for organic optoelectronic devices, particularly organic EL devices.
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Abstract
Description
정공 수송층 | LT95(비교예 1을 1.0 으로 했을 때의 상대값) | |
예 1 | 폴리머 1 | 1.9 |
예 2 | 폴리머 2 | 1.8 |
예 3 | 폴리머 3 | 1.7 |
예 4 | 폴리머 4 | 1.7 |
예 5 | 폴리머 5 | 1.4 |
비교예 1 | 참조 폴리머 | 1.0 |
Claims (18)
- 폴리머를 구성하는 전체 반복 단위의 40~100몰%가 하기 식 (1)로 표시되는 반복 단위로 이루어지는 폴리머:식 (1)에서,*는 폴리머쇄 중의 이웃하는 반복 단위 또는 말단기와의 결합 부위를 나타내며,R1, R3, R4, R5, R6, 및 R8은 각각 독립적으로, 수소 원자, 중수소 원자, 불소 원자, CN기, NRaRb기(Ra 및 Rb는 독립적으로 치환 또는 비치환된 탄소수 1~30의 알킬기, 치환 또는 비치환된 고리 구성 원자수 6~30의 아릴기, 및 치환 또는 비치환된 고리 구성 원자수 5~30의 헤테로아릴기로 이루어지는 군으로부터 선택되는 기를 나타낸다), 치환 또는 비치환된 탄소수 1~30의 알킬기, 치환 또는 비치환된 고리 구성 원자수 6~30의 아릴기, 및 치환 또는 비치환된 고리 구성 원자수 5~30의 헤테로아릴기로 이루어지는 군으로부터 선택되는 기를 나타내고,단, R4 및 R5 중 적어도 하나는 하기 식 (A) 또는 (B)로 표시되는 방향족 아미노기이며,식 (A) 및 (B) 중, Ar1은, 치환 또는 비치환된 고리 구성 원자수 6~30의 아릴렌기 혹은 치환 또는 비치환된 고리 구성 원자수 5~30의 헤테로아릴렌기를 나타내고,Ar2 및 Ar3은 각각 독립적으로 치환 또는 비치환된 고리 구성 원자수 6~30의 아릴기 혹은 치환 또는 비치환된 고리 구성 원자수 5~30의 헤테로아릴기를 나타내며,R9 및 R10은 각각 독립적으로 치환 또는 비치환된 탄소수 1~30의 알킬기, 치환 또는 비치환된 고리 구성 원자수 6~30의 아릴기, 및 치환 또는 비치환된 고리 구성 원자수 5~30의 헤테로아릴기로 이루어지는 군으로부터 선택되는 기를 나타내거나; 혹은 R9 및 R10은 그들이 결합하고 있는 식 (1) 중의 탄소 원자와 함께 고리 구성 원자수 3~10의 치환 또는 비치환된 시클로알킬 고리를 형성하거나, 또는 치환 또는 비치환된 스피로플루오렌 고리를 형성한다.
- 청구항 1에 있어서,상기 식 (1)로 표시되는 반복 단위에 더해, 하기 식 (2)~(4)로 표시되는 적어도 1종의 반복 단위를 더 포함하고,식 (1)로 표시되는 반복 단위와 식 (2)~(4)로 표시되는 반복 단위의 합계가, 폴리머를 구성하는 전체 반복 단위의 60~100몰%이며,식 (2)로 표시되는 반복 단위는 식 (1)로 표시되는 반복 단위와는 화학 구조가 다른 것인 폴리머:식 (2) 중, *는 폴리머쇄 중의 이웃하는 반복 단위 또는 말단기와의 결합 부위를 나타내고,R1', R3', R4', R5', R6', 및 R8'는 각각 독립적으로, 수소 원자, 중수소 원자, 불소 원자, CN기, NRaRb기(Ra 및 Rb는 독립적으로, 치환 또는 비치환된 탄소수 1~30의 알킬기, 치환 또는 비치환된 고리 구성 원자수 6~30의 아릴기, 및 치환 또는 비치환된 고리 구성 원자수 5~30의 헤테로아릴기로 이루어지는 군으로부터 선택되는 기를 나타낸다), 치환 또는 비치환된 탄소수 1~30의 알킬기, 치환 또는 비치환된 고리 구성 원자수 6~30의 아릴기, 및 치환 또는 비치환된 고리 구성 원자수 5~30의 헤테로아릴기로 이루어지는 군으로부터 선택되는 기를 나타내고,R9'및 R10'는 각각 독립적으로 치환 또는 비치환된 탄소수 1~30의 알킬기, 치환 또는 비치환된 고리 구성 원자수 6~30의 아릴기, 및 치환 또는 비치환된 고리 구성 원자수 5~30의 헤테로아릴기를 나타내거나; 혹은 R9'및 R10'는 그들이 결합하고 있는 식 (2) 중의 탄소 원자와 함께 고리 구성 원자수 3~10의 치환 또는 비치환된 시클로알킬 고리를 형성하거나, 또는 치환 또는 비치환된 스피로플루오렌 고리를 형성하며,식(3) 중, *는 폴리머쇄 중의 이웃하는 반복 단위 또는 말단기와의 결합 부위를 나타내고,Ar12는, 치환 또는 비치환된 고리 구성 원자수 6~30의 아릴기 혹은 치환 또는 비치환된 고리 구성 원자수 5~30의 헤테로아릴기를 나타내고;Ar11 및 Ar21은 각각 독립적으로, 치환 또는 비치환된 고리 구성 원자수 6~30의 아릴렌기를 나타내며,식 (4) 중, *는 폴리머쇄 중의 이웃하는 반복 단위 또는 말단기와의 결합 부위를 나타내고,Ar12 및 Ar22는 각각 독립적으로, 치환 또는 비치환된 고리 구성 원자수 6~30의 아릴기, 혹은 치환 또는 비치환된 고리 구성 원자수 5~30의 헤테로아릴기를 나타내며,Ar11, Ar21, 및 Ar31은 각각 독립적으로 치환 또는 비치환된 고리 구성 원자수 6~30의 아릴렌기를 나타낸다.
- 청구항 2에 있어서,상기 식 (1)로 표시되는 반복 단위에 더해, 상기 식 (2) 내지 (4)로 표시되는 반복 단위로서 상기 식 (2)로 표시되는 반복 단위만을 포함하는 것인 폴리머.
- 청구항 2에 있어서,상기 폴리머의 쇄가, 상기 식 (1)의 반복 단위와 상기 식 (2) 내지 (4)로 표시되는 적어도 1종의 반복 단위가 교대로 연결되어 구성되어 있거나; 또는 상기 폴리머의 쇄가, 상기 식 (1)의 반복 단위와 상기 식 (2) 내지 (4)로 표시되는 적어도 1종의 반복 단위가 교대로 연결되어 있는 블록을 포함하는 것인 폴리머.
- 청구항 4에 있어서,상기 폴리머의 쇄가, 상기 식 (1)의 반복 단위와 상기 식 (2)로 표시되는 반복 단위가 교대로 연결되어 구성되어 있거나; 또는 상기 폴리머의 쇄가, 상기 식 (1)의 반복 단위와 상기 식 (2)로 표시되는 반복 단위가 교대로 연결되어 있는 블록을 포함하는 것인 폴리머.
- 청구항 1에 있어서,상기 식 (1)에 있어서, R1, R3, R6, R8, 상기 식 (A) 또는 (B)로 표시되지 않는 R4, 및 상기 식 (A) 또는 (B)로 표시되지 않는 R5가 각각 독립적으로, 수소 원자, 중수소 원자, 비치환된 탄소수 1~30의 알킬기, 및 비치환된 고리 구성 원자수 6~30의 아릴기로 이루어지는 군으로부터 선택되는 기이고,R9 및 R10은 각각 비치환된 또는 탄소수 1~30의 알킬기로 치환된 고리 구성 원자수 6~30의 아릴기이거나; 또는 R9 및 R10은 그들이 결합하고 있는 상기 식 (1) 중의 탄소 원자와 함께 비치환된 또는 탄소수 1~30의 알킬기로 치환된 스피로플루오렌 고리를 형성하고,상기 식 (A) 및 (B)의 Ar2 및 Ar3이 각각 비치환된 또는 탄소수 1~30의 알킬기로 치환된 고리 구성 원자수 6~30의 아릴기이며,상기 식 (B)의 Ar1이 비치환된 또는 탄소수 1~30의 알킬기로 치환된 고리 구성 원자수 6~30의 아릴렌기인 것인 폴리머.
- 청구항 2에 있어서,상기 식 (2)에 있어서, R1', R3', R4', R5', R6', 및 R8'는 각각 독립적으로, 수소 원자, 중수소 원자, 및 비치환된 또는 탄소수 1~30의 알킬기로 치환된 고리 구성 원자수 6~30의 아릴기로 이루어지는 군으로부터 선택되는 기를 나타내고,R9'및 R10'는 각각 독립적으로 비치환된 탄소수 1~30의 알킬기, 또는 비치환된 또는 탄소 원자수 1~30의 알킬기로 치환된 고리 구성 원자수 6~30의 아릴기를 나타내거나; 혹은 R9'및 R10'는 그들이 결합하고 있는 상기 식 (1)의 탄소 원자와 함께 비치환된 또는 탄소수 1~30의 알킬기로 치환된 고리 구성 원자수 3~6의 시클로알킬 고리를 형성하거나, 또는 비치환된 또는 탄소수 1~30의 알킬기로 치환된 스피로플루오렌 고리를 형성하는 것인 폴리머.
- 청구항 1에 있어서,폴리머쇄끼리 가교하기 위한 가교성기를 갖는 반복 단위를 폴리머쇄 중에 포함하거나, 폴리머쇄끼리 가교하기 위한 가교성기를 폴리머 말단에 포함하거나, 또는 그들의 조합을 포함하는 것인 폴리머.
- 청구항 1에 있어서,반복 단위의 수가 1분자당 평균 10~1000인 것인 폴리머.
- 청구항 9 또는 청구항 10에 기재된 폴리머와, 상기 폴리머가 갖는 가교성기와 반응하여 폴리머쇄를 가교할 수 있는 가교제를 포함하는 것인 가교성 폴리머 조성물.
- 청구항 1 내지 청구항 11 중 어느 한 항에 기재된 폴리머를 포함하는 유기 전자 디바이스용 정공 수송 재료.
- 청구항 12에 기재된 가교성 폴리머 조성물을 포함하는 유기 전자 디바이스용 정공 수송 재료.
- 청구항 1 내지 청구항 11 중 어느 한 항에 기재된 폴리머의 경화물을 포함하는 유기 전자 디바이스.
- 청구항 12에 기재된 가교성 폴리머 조성물로부터 얻어지는 가교된 폴리머를 포함하는 유기 전자 디바이스.
- 기판 상에 1개 이상의 유기층을 형성시켜 유기 전자 디바이스를 제조하는 방법에 있어서,적어도 1개의 유기층을 이하의 공정을 포함하는 방법에 의해 형성하는 것인 유기 전자 디바이스의 제조 방법:상기 공정은, 청구항 1 내지 청구항 11 중 어느 한 항에 기재된 폴리머를 유기 용제에 녹여 폴리머 용액을 조제하는 공정,상기 폴리머 용액을 기재 상에 적용하는 공정, 및상기 유기 용제를 증발시켜 폴리머 박막을 형성하는 공정을 포함하고,여기서 상기 폴리머가 가교성기를 포함하는 경우, 가교성기를 가교시키는 공정을 더 포함한다.
- 기판 상에 1개 이상의 유기층을 형성시켜 유기 전자 디바이스를 제조하는 방법에 있어서,적어도 1개의 유기층을 이하의 공정을 포함하는 방법에 의해 형성하는 것인 유기 전자 디바이스의 제조 방법:상기 공정은, 청구항 12에 기재된 가교성 폴리머 조성물을 유기 용제 중에 포함하는 용액을 조제하는 공정,상기 용액을 기재 상에 적용하는 공정,상기 유기 용제를 증발시켜 가교성 폴리머 및 가교제를 포함하는 박막을 형성하는 공정, 및상기 가교성 폴리머와 가교제를 반응시켜 가교시키는 공정을 포함한다.
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Publication number | Publication date |
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KR20200144141A (ko) | 2020-12-28 |
JP2020026505A (ja) | 2020-02-20 |
CN112218905B (zh) | 2023-04-18 |
CN112218905A (zh) | 2021-01-12 |
EP3789419B1 (en) | 2023-07-26 |
KR102442334B1 (ko) | 2022-09-08 |
EP3789419A4 (en) | 2021-07-14 |
EP3789419A1 (en) | 2021-03-10 |
US20210115186A1 (en) | 2021-04-22 |
JP6866333B2 (ja) | 2021-04-28 |
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