WO2006025219A1 - 新規なポリマー、新規な化合物、新規なポリマーの製造方法、新規な化合物の製造方法及び青色発光素子 - Google Patents
新規なポリマー、新規な化合物、新規なポリマーの製造方法、新規な化合物の製造方法及び青色発光素子 Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D271/00—Heterocyclic compounds containing five-membered rings having two nitrogen atoms and one oxygen atom as the only ring hetero atoms
- C07D271/02—Heterocyclic compounds containing five-membered rings having two nitrogen atoms and one oxygen atom as the only ring hetero atoms not condensed with other rings
- C07D271/10—1,3,4-Oxadiazoles; Hydrogenated 1,3,4-oxadiazoles
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F226/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen
- C08F226/06—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen by a heterocyclic ring containing nitrogen
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/12—Light sources with substantially two-dimensional radiating surfaces
- H05B33/14—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material, or by the simultaneous addition of the electroluminescent material in or onto the light source
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/10—Organic polymers or oligomers
- H10K85/141—Organic polymers or oligomers comprising aliphatic or olefinic chains, e.g. poly N-vinylcarbazol, PVC or PTFE
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/14—Macromolecular compounds
- C09K2211/1441—Heterocyclic
- C09K2211/1475—Heterocyclic containing nitrogen and oxygen as heteroatoms
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/649—Aromatic compounds comprising a hetero atom
- H10K85/656—Aromatic compounds comprising a hetero atom comprising two or more different heteroatoms per ring
- H10K85/6565—Oxadiazole compounds
Definitions
- Novel polymer, novel compound, novel polymer production method, novel compound production method, and blue light emitting device
- the present invention relates to a novel polymer, a novel compound, a novel polymer production method, a novel compound production method, and a blue light-emitting device, and more particularly, as a light-emitting compound capable of forming a blue light-emitting device.
- Polymer as useful blue light-emitting substance, compound useful as monomer for producing this polymer, method for producing the polymer, method for producing the compound, and blue light-emitting device comprising a light-emitting layer containing the polymer About.
- Patent Document 1 JP 2000-143558 A
- Patent Document 2 JP 2000-143569
- Patent Document 3 JP 2000-143778
- Patent Document 4 JP 2000-150162
- Patent Document 1 As a general explanation in Patent Document 1, a substance is described in which oxadiazole is at the center of a molecule and aromatic rings are bonded symmetrically on both sides of oxaziazole.
- the blue light-emitting compound proposed in Patent Document 1 has a large steric hindrance at both ends of the molecule.
- New triphenylsilyl group, triphenylmethylphenol group, and fluorene group are introduced and bonded.
- the only specific compound having an oxadiazole ring has the following chemical structure.
- the light emitting compound described in Patent Document 3 is a polymer and has the following structure.
- the light-emitting compound described in Patent Document 4 is also a polymer and has the following structure.
- the light emitting compounds described in Patent Documents 3 and 4 have a double bond in the main chain, deterioration of the polymer over time is expected, and a light emitting device using this light emitting compound has a light emitting lifetime. Concerned about short.
- the light emission luminance of the light emitting device using the specifically produced light emitting compound was 50 to 1700 cdZm 2 .
- the light emission luminance of the light emitting device using the specifically produced light emitting compound was 1000 to 2500 cdZm 2 .
- the practical light emission luminance of the light emitting element is desired to be a larger value and to have a long light emission lifetime.
- the blue light-emitting compound described in Patent Document 2 has an unsaturated double bond in the vicinity of both ends in the molecule, as is apparent from the above structural formula. Therefore, even if the bulky substituents Arl, Ar2, Ar4, Ar5 are substituted at both ends of the molecule, the degradation of the molecule based on double bonds is expected, and therefore the emission lifetime is long and the light emitting device is realized. I cannot expect.
- the present invention can produce a blue light emitting polymer that emits light with high brightness and can emit light over a long period of time, and has excellent durability.
- PROBLEM TO BE SOLVED To provide a compound useful as a color luminescent monomer, a method for producing the polymer, a method for producing the compound, and a blue light emitting device comprising a light emitting layer containing the polymer and Z or the compound. And
- the first means for solving the above-mentioned problems of the present invention is as follows:
- Ar 1 represents any one group represented by the following general formulas (2) to (6)
- Ar 2 represents the following general formula (7) to (7) (12) represents any one group represented by R1
- R 1 represents a hydrogen atom or a methyl group.
- R represents a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, and m represents an integer of 1 to 4.
- a plurality of R bonded to the benzene ring may be the same or different from each other.
- R is as defined above, and n represents an integer of 1 to 3.
- a plurality of R bonded to the benzene ring may be the same as or different from each other.
- R and m are as defined above, and o represents an integer of 1 to 2.
- a plurality of R bonded to the benzene ring may be the same or different from each other.
- R may be the same as or different from each other.
- R is the same as described above, and two Rs may be the same as or different from each other. ]
- R is as defined above, and q represents an integer of 1 to 5.
- R, m and n are the same as described above, and the plurality of R bonded to the benzene ring may be the same as or different from each other.
- R, m and n are the same as described above, and the plurality of R bonded to the benzene ring may be the same or different.
- R and m are the same as described above, and the plurality of R bonded to the benzene ring may be the same as or different from each other. ]
- R is the same as described above, and the two Rs may be the same as or different from each other.
- a third means for solving the problems of the present invention is as follows:
- a fourth means for solving the problems of the present invention is as follows:
- a blue light emitting device comprising a light emitting layer containing the polymer described in 1 and Z or the compound described in 2 above between a pair of electrodes.
- a polymer having a repeating unit represented by the general formula (1) a compound useful as a monomer for producing the polymer, a method for producing the polymer, and the compound And a blue light emitting device comprising a light emitting layer containing the polymer and Z or the compound.
- the polymer capable of emitting blue light represented by the formula (1) does not have an unsaturated bond in the main chain, it is less likely to deteriorate over time due to oxidation of a double bond under severe conditions. . Therefore, the light emitting device obtained using the polymer capable of emitting blue light according to the present invention has a long light emission lifetime.
- the polymer represented by the formula (1) has a rigid molecular structure which is not easily deteriorated because the oxadiazole ring and the aromatic ring are alternately bonded to the side chain.
- two oxadiazole rings are bonded to one side chain of the side chain bonded to the polymer main chain, the polarity is increased and the solubility in the solvent is improved.
- the alternating bond structure of the oxadiazole ring and the aromatic ring contained in the side chain greatly contributes to blue light emission.
- the polymer emits light with high brightness, can emit light for a long time, and is a blue light-emitting polymer excellent in durability. Therefore, the light-emitting layer forming the blue light-emitting element is used.
- the monomer represented by the formula (13) which is a raw material for the polymer represented by the formula (1), has an alternating bond structure of an oxadiazole ring and an aromatic ring. Due to its structure, it is a low-molecular compound that emits light with high brightness and emits light for a long time.
- a light emitting device having a light emitting layer using a polymer having a structure represented by the formula (1) and a low molecular compound having a structure represented by Z or the formula (13) has a high luminance. It can emit blue light and has a long life.
- the polymer of the present invention comprises a repeating unit represented by the following general formula (1).
- Ar 1 represents any one group represented by the general formulas (2) to (6), and Ar 2 represents the general formulas (7) to ( Any one group represented by 12) is shown.
- R 1 represents a hydrogen atom or a methyl group.
- R in Ar 1 represented by the general formulas (2) to (6) and Ar 2 represented by the general formulas (7) to (12) is a carbon number. 1 to 20 alkyl groups. Specifically, a methyl group, an ethyl group, a propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a sec-butinole group, a tert-butinole group, an n-pentinole group, a sec-pentinole group, and a tert-pentinole group Hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl .
- alkyl groups Specifically,
- m represents an integer of 1 to 4. Therefore, the benzene ring can be bonded to 1 to 4 Rs. A plurality of R bonded to the benzene ring may be the same or different from each other.
- n represents an integer of 1 to 3. Therefore, Each benzene ring can be bonded to 1 to 3 Rs. A plurality of R bonded to each benzene ring may be the same or different.
- Ar 1 represented by the general formula (4) m represents an integer of 1 to 4, and o represents an integer of 1 to 2. Therefore, one benzene ring can be bonded to 1 to 4 Rs, and the other benzene ring can be bonded to 1 to 2 Rs.
- a plurality of R bonded to each benzene ring may be the same as or different from each other.
- m represents an integer of 1 to 4. Therefore, the benzene ring can be bonded to 1 to 4 Rs. A plurality of R bonded to the benzene ring may be the same or different from each other.
- q represents an integer of 1 to 5. Therefore, the benzene ring can be bonded to 1 to 5 Rs. A plurality of R bonded to the benzene ring may be the same as or different from each other.
- m represents an integer of 1 to 4
- n represents an integer of 1 to 3. Accordingly, one benzene ring can be bonded to 1 to 4 Rs, and the other benzene ring can be bonded to 1 to 3 Rs.
- a plurality of R bonded to each benzene ring may be the same as or different from each other.
- m represents an integer of 1 to 4
- n represents an integer of 1 to 3. Accordingly, one benzene ring can be bonded to 1 to 4 Rs, and the other benzene ring can be bonded to 1 to 3 Rs.
- a plurality of R bonded to each benzene ring may be the same as or different from each other.
- m represents an integer of 1 to 4. Therefore, the benzene ring can be bonded to 1 to 4 Rs.
- bonded with a benzene ring may mutually be same, or may differ.
- the two Rs may be the same or different from each other.
- the polymer of the present invention having a repeating unit represented by the general formula (1)
- the average molecular weight force s is 1000-200000.
- the polymer of the present invention is a blue light emitting polymer that emits light with high brightness, can emit light over a long period of time, and has excellent durability, and thus forms a blue light emitting element. It is a polymer useful as a light emitting layer.
- CH 2 CCC-- A r 1 - CC- A r i ⁇ -. N- N " have 3)
- Equation (13) ⁇ Ar 2 and R 1 are the same as described above.
- the compound of the present invention represented by the general formula (13) is useful as a monomer for producing a polymer having a repeating unit represented by the general formula (1).
- the monomer having the structure represented by the formula (13) is useful as a blue light-emitting substance.
- the method for producing a polymer according to 1 of the present invention is a method for producing the polymer described in 2 above by superimposing.
- Polymerization of the compound represented by the general formula (13) also proceeds due to radical polymerization and ionic polymerization! Therefore, as a polymerization method for polymerizing the monomer represented by the general formula (13), a deviation between a normal radical polymerization method and an ionic polymerization method can be employed.
- a radical polymerization method is recommended as an industrial polymerization method.
- the radical polymerization method may be any of bulk polymerization method, suspension polymerization method, emulsion polymerization method and solution polymerization method.
- the polymerization conditions for carrying out radical polymerization the polymerization conditions employed for radical polymerization of ordinary monomers such as methyl methacrylate can be employed.
- radical polymerization initiators such as azobisisobutyoxy-tolyl (AIBN), benzoyl peroxide (BPO), etc. And the like, and dimethylformamide (DMF), chlorobenzene or the like as a solvent
- the polymerization reaction can be carried out at 110 to 140 ° C. for 50 to 200 hours.
- a dispersant such as polybutyl alcohol, a mixture of calcium phosphate and dodecylbenzenesulfonate can be used, and in order to obtain the polymer having a desired molecular weight, ethyl alcohol or the like is appropriately used.
- the polymerization terminator can also be used.
- the polymerization reaction may be carried out under normal pressure, or under reduced pressure or under pressure, but is usually carried out under normal pressure.
- the polymer production process may be a batch process or a continuous process, but a continuous process is preferred from the viewpoint of production efficiency.
- the method for producing a compound described in 2 above of the present invention is a method for producing a compound represented by the following general formula (14) by a ring-closing reaction.
- the compound represented by the general formula (14) is heat-treated at 100 to 120 ° C for 6 to 12 hours in the presence of, for example, phosphorus trichloride monoxide (POC1).
- POC1 phosphorus trichloride monoxide
- reaction temperature should be a temperature at which the double bond of the compound represented by the general formula (14) is not broken. No solvent is required.
- the compound represented by the general formula (14) is obtained by, for example, reacting a compound represented by the following general formula (15) with a (meth) acrylic acid chloride represented by the following formula (16). Can be manufactured.
- R 1 is the same as described above.
- the reaction can be performed, for example, by using pyridine as a catalyst and a polar solvent such as DMF or dioxane as a solvent at 50 to 120 ° C for 2 to: LO time.
- a polar solvent such as DMF or dioxane
- the compound represented by the general formula (15) is produced, for example, by reacting a compound represented by the following general formula (17) with a hydrazine represented by the following formula (18). be able to.
- the reaction can be carried out, for example, by treating at 60 to 70 ° C for 4 to 5 hours using pyridine or the like as a catalyst.
- a solvent is not particularly required.
- the compound represented by the general formula (17) is produced, for example, by reacting a compound represented by the following general formula (19) with a compound represented by the following general formula (20). It can be done.
- Ar 1 is the same as described above.
- Ar 2 is the same as described above.
- the blue light-emitting device of the present invention is a device having a light-emitting layer containing the polymer described in 1 and Z or the compound described in 2 above between a pair of electrodes. is there.
- FIG. 1 is a cross-sectional view schematically showing an example of the blue light-emitting element of the present invention.
- the blue light-emitting element 1 includes a transparent substrate 2, an anode 3, a hole injection layer 4, a hole transport layer 5, a light-emitting layer 6, an electron transport layer 7, an electron injection layer 8, and a cathode 9 stacked in that order. It is made up of.
- Each layer constituting the blue light emitting element 1 is formed on a transparent substrate 2, and examples of the transparent substrate 2 include a glass substrate, a plastic substrate, and a silicon substrate.
- anode 3 various materials can be adopted as long as the work function is large and transparent.
- ITO indium tin oxide
- In O In O
- SnO Tin Oxide
- ZnO Zinc Oxide
- CdO CdO
- This non-uniform thickness of the anode 3 affects the film thickness of the light emitting layer, so that smoothness is required.
- the anode 3 is formed on the transparent substrate 2 by chemical vapor deposition, spray pyrolysis, vacuum deposition, electron beam deposition, sputtering, ion beam sputtering, ion plating, ion assist. It can be formed by a method such as vapor deposition.
- a triphenylamine compound for example, , N, N 'Diphenyl N, N' Di (m-tolyl) monobenzidine (TPD), N, ⁇ '-di (naphthalene-1-yl) - ⁇ , ⁇ '-Diphenyl- Hydrazone compounds such as benzidine ( ⁇ -NPD), stilbene compounds such as stilbenebis [ ⁇ - (1-naphthyl) - ⁇ -phenol] benzidine compounds, heterocyclic compounds, ⁇ -electron starburst
- Examples of such a layer include a hole transport material.
- the hole injection layer 4 and the hole transport layer 5 may be integrated as a hole injection / transport layer.
- the hole injection layer 4 and the hole transport layer 5 can be formed by a vapor deposition method or a coating method, for example, a spin casting method, a coating method, or a dip method.
- the light-emitting layer 6 is a layer containing a light-emitting compound, and the light-emitting layer 6 has a polymer having a repeating unit represented by the general formula (1) of the present invention, and A blue light emitting layer comprising the compound represented by the general formula (13) of the present invention.
- the light emitting layer 6 can be formed by a vapor deposition method, a coating method, such as a spin casting method, a coating method, or a dip method.
- the electron transport layer 7 is made of, for example, a 1, 3, 4-oxadiazole derivative or a 1, 2, 4-triazole derivative.
- This electron transport layer 7 can also be formed by a vapor deposition method, a coating method, such as a spin casting method, a coating method, or a dipping method.
- Examples of the electron injection layer 8 include 2, 5 bis (1 naphthyl) 1, 3, 4 oxadiazole (BND), 2- (4-tert butylphenol) -5- (4 biphenyl). ) — Oxadiazole derivatives such as 1, 3, 4-oxadiazole, 2, 5 bis (5′-tert-butyl-2 ′ benzoxazolyl) thiophene, tris (8 quinolinolato) aluminum complex (A lq3), benzoquinolinol Mention may be made of layers that also form forces, such as metal complex materials such as beryllium complex (Bebq2).
- the electron injection layer 8 can be formed by a vapor deposition method, a coating method, such as a spin casting method, a coating method, or a dipping method.
- the cathode 9 is made of a substance having a low work function, and can be formed of, for example, a simple metal such as Mg, Ag, an aluminum alloy, or calcium metal, or a metal alloy.
- a preferred cathode is an alloy electrode of aluminum and a small amount of lithium.
- the cathode 9 is formed on the surface of each layer formed on the transparent substrate 2 by chemical vapor deposition or spraying. It can be formed by a method such as ilolysis, vacuum deposition, electron beam deposition, sputtering, ion beam sputtering, ion plating, or ion-assisted deposition.
- the blue light-emitting element 1 having such a layer structure, holes are injected from the anode 3 into the hole injection layer 4 through the hole transport layer 5 by flowing current, and the cathode 9 Then, electrons are injected toward the light emitting layer 6 containing the light emitting compound. In the light emitting layer 6, electrons and holes are combined to excite the phosphor (light emitting compound) of the light emitting layer 6, and light is emitted and energy is released when the excited state returns to the ground state.
- the thickness of the light-emitting element 1 is usually 0.1 to 0.3 ⁇ m.
- the light emitting layer contains a polymer having a repeating unit represented by the general formula (1), and the polymer emits light with high luminance.
- the polymer since it is a blue light-emitting polymer that can emit light for a long time and has excellent durability, an excellent blue light-emitting element in which the characteristics of the polymer are directly reflected.
- the blue light-emitting device of the present invention can also be formed by having a light-emitting layer containing a low molecular weight compound having the structure represented by the general formula (13).
- the compound represented by the general formula (13) is a low molecular weight compound that emits light with high brightness and emits light over a long period of time. Therefore, it has excellent blue light emission that directly reflects the characteristics of this compound. It becomes an element.
- the light emitting layer can be formed by vapor deposition of the low molecular compound.
- a 2 L three-necked flask was charged with 3.72 ml of pyridine and a solution of 10 g of the compound represented by the following formula (21) dissolved in TH F 600 ml, and this was charged with 10 g of the compound represented by the following formula (22).
- a solution in which 500 ml of tetrahydrofuran (THF) was dissolved was added dropwise over 30 minutes, and then stirred at 60 ° C. for 1 hour to obtain a reaction solution.
- THF tetrahydrofuran
- FIG. 2 shows an infrared absorption (IR) spectrum and FIG. 3 shows a nuclear magnetic resonance (NMR) spectrum of the solid. From the IR spectrum and NMR spectrum, the solid was identified as a compound represented by the following formula (24).
- reaction solution was put into a beaker containing ice and black mouth form and washed twice with water, and then water and black mouth form were distilled off. Subsequently, the black mouth form was further collected and filtered, and the black mouth form was distilled off from the filtrate, washed with water, and washed with methyl alcohol to obtain a solid.
- the IR ⁇ vector of the solid is shown in Fig. 4, and the NMR ⁇ vector is shown in Fig. 5. From the IR spectrum and NMR spectrum, the solid was identified as a compound represented by the following formula (25).
- the reaction solution was obtained by flowing.
- reaction solution was put into a beaker containing water and filtered to obtain a yellow powder.
- This yellow powder was washed with water three times and then with methyl alcohol. Subsequently, after extraction with chloroform, it was washed twice with water and dried by an evaporator to obtain a solid.
- Fig. 8 shows the IR ⁇ vector of the polymer. From the IR ⁇ vector, the polymer was identified as a polymer having a repeating unit represented by the following formula (27).
- Fig. 9 shows the fluorescence spectrum of the polymer. This fluorescence spectrum confirmed that the polymer was a polymer that emitted blue light.
- reaction solution was put into a beaker containing ice, and the solution obtained by removing the ice was extracted with black mouth form. Subsequently, the black form was distilled off to obtain a solid.
- reaction solution was put into a beaker containing ice and black mouth form and stirred to separate chloroform and ice water. Subsequently, black mouth form was further added, and the filtrate power obtained by filtration was also distilled off to obtain a solid.
- the IR ⁇ vector of the solid is shown in Fig. 12, and the NMR ⁇ vector is shown in Fig. 13. Based on this IR spectrum and NMR vector, the solid was identified as a compound represented by the following formula (32).
- the reaction solution was obtained by refluxing at 90 ° C for 4 hours.
- reaction solution was put into a beaker containing water, filtered, and the filtrate was washed with water, followed by washing with methyl alcohol. Subsequently, after extraction with black mouth form, recrystallization with acetone monomethyl alcohol gave a solid.
- the IR ⁇ vector of the polymer is shown in Fig. 16, and the NMR ⁇ vector is shown in Fig. 17. From the IR vector and NMR vector, the polymer was identified as a polymer represented by the following formula (34).
- FIG. 18 shows the fluorescence spectrum of the polymer. This fluorescence spectrum confirmed that the polymer was a blue light emitting polymer.
- a blue light-emitting element 1 shown in FIG. 1 was produced. Each layer is as follows.
- Each of these layers was laminated by a vacuum deposition method.
- the light-emitting device manufactured in this manner was a blue light-emitting device with high emission luminance and excellent durability.
- FIG. 1 is a cross-sectional view schematically showing an example of a blue light emitting device of the present invention.
- FIG. 2 is an IR vector chart of the compound obtained in Production Example B-1.
- FIG. 3 is an NMR vector chart of the compound obtained in Production Example B-1.
- FIG. 4 is an IR ⁇ vector chart of the compound obtained in Production Example C-1.
- FIG. 5 is an NMR vector chart of the compound obtained in Production Example C-1.
- FIG. 6 is an IR vector chart of the compound obtained in Production Example D-1.
- FIG. 7 is an NMR spectrum chart of the compound obtained in Production Example D-1.
- FIG. 8 is an IR ⁇ vector chart of the polymer obtained in Production Example E-1.
- FIG. 9 is a fluorescence spectrum chart of the polymer obtained in Production Example E-1.
- FIG. 10 is an IR ⁇ vector chart of the compound obtained in Production Example B-2.
- FIG. 11 is a NMR vector chart of the compound obtained in Production Example B-2.
- FIG. 12 is an IR ⁇ vector chart of the compound obtained in Production Example C-2.
- FIG. 13 is an NMR vector chart of the compound obtained in Production Example C2.
- FIG. 14 is an IR vector chart of the compound obtained in Production Example D-2.
- FIG. 15 is an NMR spectrum chart of the compound obtained in Production Example D-2.
- FIG. 16 is an IR ⁇ vector chart of the polymer obtained in Production Example E-2.
- FIG. 17 is an NMR vector chart of the polymer obtained in Production Example E-2.
- FIG. 18 is a fluorescence spectrum chart of the polymer obtained in Production Example E-2. Explanation of symbols
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Cited By (2)
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JP2010032750A (ja) * | 2008-07-29 | 2010-02-12 | Brother Ind Ltd | 表示装置の製造方法 |
JP2014075605A (ja) * | 2006-09-08 | 2014-04-24 | Konica Minolta Inc | 有機エレクトロルミネッセンス素子 |
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JPS62949A (ja) * | 1985-06-26 | 1987-01-06 | Konishiroku Photo Ind Co Ltd | ハロゲン化銀写真感光材料 |
JPH06107615A (ja) * | 1991-01-30 | 1994-04-19 | Elf Atochem Sa | 2,5−ジアリール−1,3,4−オキサジアゾールヒドロキシエステル、ヒドロキシ酸及びアセトキシ酸、並びにそれらの合成方法 |
JPH11514657A (ja) * | 1995-11-06 | 1999-12-14 | バイエル・アクチエンゲゼルシヤフト | フルオロプロペニルオキサジアゾール及びその有害生物防除剤としての使用 |
JP2000087027A (ja) * | 1998-09-11 | 2000-03-28 | Fuji Photo Film Co Ltd | 有機エレクトロルミネツセンス素子材料およびそれを使用した有機エレクトロルミネツセンス素子 |
JP2003221484A (ja) * | 2001-11-09 | 2003-08-05 | Jsr Corp | 発光性重合体組成物並びに有機エレクトロルミネッセンス素子およびその製造方法 |
-
2005
- 2005-08-18 WO PCT/JP2005/015047 patent/WO2006025219A1/ja active Application Filing
- 2005-08-25 TW TW094129057A patent/TW200615270A/zh unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62949A (ja) * | 1985-06-26 | 1987-01-06 | Konishiroku Photo Ind Co Ltd | ハロゲン化銀写真感光材料 |
JPH06107615A (ja) * | 1991-01-30 | 1994-04-19 | Elf Atochem Sa | 2,5−ジアリール−1,3,4−オキサジアゾールヒドロキシエステル、ヒドロキシ酸及びアセトキシ酸、並びにそれらの合成方法 |
JPH11514657A (ja) * | 1995-11-06 | 1999-12-14 | バイエル・アクチエンゲゼルシヤフト | フルオロプロペニルオキサジアゾール及びその有害生物防除剤としての使用 |
JP2000087027A (ja) * | 1998-09-11 | 2000-03-28 | Fuji Photo Film Co Ltd | 有機エレクトロルミネツセンス素子材料およびそれを使用した有機エレクトロルミネツセンス素子 |
JP2003221484A (ja) * | 2001-11-09 | 2003-08-05 | Jsr Corp | 発光性重合体組成物並びに有機エレクトロルミネッセンス素子およびその製造方法 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014075605A (ja) * | 2006-09-08 | 2014-04-24 | Konica Minolta Inc | 有機エレクトロルミネッセンス素子 |
JP2010032750A (ja) * | 2008-07-29 | 2010-02-12 | Brother Ind Ltd | 表示装置の製造方法 |
Also Published As
Publication number | Publication date |
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TW200615270A (en) | 2006-05-16 |
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