WO2004039859A1 - 高分子化合物およびそれを用いた高分子発光素子 - Google Patents
高分子化合物およびそれを用いた高分子発光素子 Download PDFInfo
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Definitions
- the present invention relates to a polymer compound and a polymer light emitting device using the polymer compound (hereinafter sometimes referred to as polymer LED).
- High molecular weight light-emitting materials and charge transport materials have been studied in various ways because they are soluble in solvents and can form layers in light-emitting elements by a coating method, unlike low molecular weight materials.
- Polymeric compounds having units are known (for example, WO 99/54385). Further, although a polymer compound having a symmetrical repeating unit is known, the emission intensity is not sufficient (Japanese Patent Laid-Open No. 2002-284662).
- An object of the present invention is to provide a novel polymer compound having strong emission intensity and a polymer light-emitting device using the polymer compound.
- a polymer compound having a specific structure in a repeating unit is useful as a light emitting material, a charge transporting material, etc., and completed the present invention. did.
- the present invention relates to a polymer compound containing a repeating unit represented by the following formula (1) or (2) and having a number average molecular weight in terms of polystyrene of 10 3 to L 0 8 .
- Ar 1 and A r 2 each independently represents a trivalent aromatic hydrocarbon group or a trivalent heterocyclic group.
- RR 2 , R 3 , R 4 , R 5 , R 6 , R 7 and R 8 are each independently a hydrogen atom, a halogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryloxy group, an aryl group.
- R 1 and R 2 , R 3 and R 4 may be bonded to each other to form a ring.
- X 1 and X 2 are never the same.
- X 1 and Ar 2 are bonded to the adjacent carbon in the aromatic ring of Ar 1
- X 2 and Ar 1 are bonded to the adjacent carbon in the aromatic ring of Ar 2 .
- Ar 3 and Ar 4 each independently represents a trivalent aromatic hydrocarbon group or a trivalent heterocyclic group.
- X 3 and X 4 each independently represent N, B, P, C (R 9 ) or S i (R 1 () ).
- R 9 and R 111 are each independently a hydrogen atom, a halogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkyloxy group.
- X 3 and X 4 are never the same.
- X 3 and Ar 4 are bonded to the adjacent carbon in the aromatic ring of Ar 3
- X 4 and Ar 3 are bonded to the adjacent carbon in the aromatic ring of Ar 4 . Best Mode of Invention
- Ar l , Ar 2 , Ar 3 and A r 4 are each independently Further, it represents a trivalent aromatic hydrocarbon group or a trivalent heterocyclic group.
- the trivalent aromatic hydrocarbon group means a remaining atomic group obtained by removing three hydrogen atoms from a benzene ring or condensed ring, and usually has 6 to 60 carbon atoms, preferably 6 to 20 carbon atoms.
- the following compounds are exemplified.
- the carbon number of the trivalent aromatic hydrocarbon group does not include the carbon number of the substituent.
- the trivalent heterocyclic group means a remaining atomic group obtained by removing three hydrogen atoms from a heterocyclic compound, and the carbon number is usually 4 to 60, preferably 4 to 20.
- the heterocyclic group may have a substituent, and the carbon number of the heterocyclic group does not include the carbon number of the substituent.
- a heterocyclic compound is an organic compound having a cyclic structure in which not only carbon atoms but also atoms such as oxygen, sulfur, nitrogen, phosphorus, boron, and potassium are included in the ring. What is included in the ring.
- Examples of the trivalent heterocyclic group include the following.
- R ′ is independently a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an alkylthio group, an alkylamino group, an aryl group, an aryloxy group, an arylthio group, an arylamino group, an aryl. It represents an alkyl group, an aryloxy group, an arylalkylthio group, an arylalkylamino group, an acyloxy group, an amido group, an arylalkylene group, an arylalkylinyl group, a monovalent heterocyclic group or a cyano group.
- R ′ ′ each independently represents a hydrogen atom, an alkyl group, an aryl group, an aryl group, a substituted silyl group, an acyl group, or a monovalent heterocyclic group.
- Examples of the substituent that may be present on the trivalent aromatic hydrocarbon group or the trivalent heterocyclic group include a halogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryloxy group, and an aryl group.
- X 1 and X 2 are never the same. In the formula, 1 to!
- ⁇ are each independently a hydrogen atom, a halogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryloxy group, an aryloxy group, an arylalkyl group, an arylalkyloxy group, Arylalkylthio group, acyl group, acyloxy group, amide group, acid imide group, imine residue, amino group, substituted amino group, substituted silyl group, substituted silyloxy group, substituted silylthio group, substituted silylamino group, monovalent hetero Represents a cyclic group, an arylenyl alkenyl group, an arylethylinyl group, a strong loxyl group or a cyano group.
- Examples of —X 1 —X 2 — include groups exemplified in the following (26), (27) and (28).
- groups of the formulas (27) and (28) are preferable, and groups of the formula (28) are more preferable.
- repeating unit represented by the formula (1) include a group represented by the following formulas (29) to (33), and these aromatic hydrocarbon cages or heterocyclic rings. Examples are groups having a substituent.
- a group represented by the formula (2 9) to the formula (3 2) and a group further having a substituent on the aromatic hydrocarbon group or the heterocyclic ring are preferable, and represented by the formula (2 9) And a group further having a substituent on the aromatic hydrocarbon group or heterocyclic ring are more preferable.
- substituents examples include a halogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an aryl alkyl group, an arylalkyloxy group, an arylalkylthio group, an acyl group, Acyloxy group, amide group, acid imide group, imine residue, amino group, substituted amino group, substituted silyl group, substituted silyloxy group, substituted silylthio group, substituted silylamino group, monovalent heterocyclic group, aryl alkenyl group An arylethynyl group, a strong lpoxyl group or a cyano group, which may be bonded to each other to form a ring.
- the repeating unit represented by the above formula (1) is preferably a repeating unit represented by the following formula (3) from the viewpoint of fluorescence intensity, and more preferably a repeating unit represented by the following formula (4): is there.
- R 11 and R 12 each independently represent a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an arylalkyl group or a monovalent heterocyclic group, and may be bonded to each other to form a ring.
- R 3 , R 4 , R 5 , R 6 , R 7 and R 8 represent the same meaning as described above.
- R 13 , R 14 , R 15 , R 16 , R 17 and R 18 are each independently a hydrogen atom, halogen atom, alkyl group, alkyloxy group, alkylthio group, aryl group, aryloxy group , Arylthio group, arylalkyl group, arylalkyloxy group, arylalkylthio group, acyl group, acyloxy group, amide group, acid imide group, imine residue, amino group, substituted amino group, substituted silyl group Represents a substituted silyloxy group, a substituted silylthio group, a substituted silylamino group, a monovalent heterocyclic group, a arylalkenyl group, an arylethynyl group, a strong loxyl group or a cyano group.
- R 14 and R 15 and R 16 and R 17 may be bonded to each other to form a ring such as an aromatic ring or a heterocyclic ring.
- X 5 in the above formula (4) is particularly preferably an oxygen atom.
- Ar 3 and Ar 4 in the above formula (2) each independently represent a trivalent aromatic hydrocarbon group or a trivalent heterocyclic group.
- X 3 and X 4 each independently represent N, B, P, C (R 9 ) or S i (R 10 ). However, X 3 and X 4 are never the same.
- R 9 and R 111 each independently represent a hydrogen atom, a halogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkyloxy group.
- Group, arylalkylthio group, acyl group, acyloxy group, amide group, acid imide group, imine residue, amino group, substituted amino group, substituted silyl group, substituted silyloxy group, substituted silylthio group, substituted silylamino group, monovalent complex Represents a cyclic group, an arylenylalkenyl group, an arylethylinyl group, a carboxyl group or a cyano group.
- X 3 in formula (2) is C (R 9 ) or S i (R 10 )
- R 9 and R 1 each independently represent the same meaning as described above), and more preferably C (R 9 ).
- X 3 X 4 — includes groups exemplified in the following formulas (34), (35), and (36).
- groups of the formulas (35) and (36) are preferable, and groups of the formula (36) are more preferable.
- halogen atom examples include fluorine, chlorine, bromine and iodine.
- the alkyl group may be linear, branched or cyclic, and may have a substituent.
- the number of carbon atoms is usually about 1 to 20, specifically, methyl group, ethyl group, propyl group, i-propyl group, butyl group, i-butyl group, t-butyl group, pentyl group, Xyl group, cyclohexyl group, heptyl group, octyl group, 2-ethylhexyl group, nonyl group, decyl group, 3,7-dimethyloctyl group, lauryl group, trifluoromethyl group, pendefluoro group, Examples thereof include a monofluorobutyl group, a perfluorinated hexyl group, and a perfluorinated octyl group.
- the alkyloxy group may be linear, branched or cyclic, and may have a substituent.
- the number of carbon atoms is usually about 1 to 20, specifically, a methoxy group, an ethoxy group, a propyloxy group, an i-propyloxy group, a butoxy group, an i-butoxy group, a t-butoxy group, a pentyloxy group, a hexyloxy group.
- Examples thereof include an ethoxy group, a perfluorobutoxy group, a perfluorohexyl group, a perfluorooctyl group, a methoxymethyloxy group, and a 2-methoxyethyloxy group.
- the alkylthio group may be linear, branched or cyclic, and may have a substituent.
- the number of carbon atoms is usually about 1 to 20, specifically, methylthio group, Tylthio, propylthio, i-propylthio, butylthio, i-butylthio, t-butylthio, pentylthio, hexylthio, cyclohexylthio, heptylthio, octylthio, 2-ethylhexylthio Group, a nonylthio group, a decylthio group, a 3,7-dimethyloctylthio group, a laurylthio group, a trifluoromethylthio group, and the like.
- the aryl group may have a substituent, and usually has about 3 to 60 carbon atoms. Specifically, a phenyl group, to ( 12 alkoxyl group (where the carbon number is 1 (The following also applies.), ( ⁇ To ⁇ 1 2 alkylphenyl group, 1-naphthyl group, 2-naphthyl group, penufluorophenyl group, pyridyl group, pyridazinyl group, Examples include pyrimidyl group, pyrazyl group, triazyl group and the like.
- the aryloxy group may have a substituent on the aromatic ring, and the carbon number is usually about 3 to 60, specifically, a phenoxy group, to (: 12 alkoxy oxy group). Examples thereof include alkylphenoxy group, 1-naphthyloxy group, 2-naphthyloxy group, penufluorophenyloxy group, pyridyloxy group, pyridazinyloxy group, pyrimidyloxy group, pyrazyloxy group, triazyloxy group and the like.
- the arylthio group may have a substituent on the aromatic ring, and usually has about 30 to 60 carbon atoms. Specifically, a phenylthio group, a ⁇ C alkoxyphenylthio group. Group ( ⁇ ⁇ . Alkylphenylthio group, 1-naphthylthio group, 2-naphthylthio group, penufluorophenylthio group, pyridylthio group, pyridazinylthio group, pyrimidylthio group, pyrazylthio group, triazylthio group and the like.
- the arylalkyl group may have a substituent, and usually has about 7 to 60 carbon atoms.
- the phenyl group is an alkyl group, and the alkoxyphenyl-( ⁇ The alkyl group, (: alkylphenyl—
- the arylalkyloxy group may have a substituent, and is it usually carbon number? ⁇ 60, specifically, Phenylou ⁇ (: 1 2 alkoxy group, ⁇ (: 1 2 . Rukokishifue two Roux ( ⁇ - alkoxy, C, ⁇ (: 12 alkylphenyl - C t -C 12 alkoxy group, 1 one-naphthyl - alkoxy group, 2-Nafuchiru C, etc. -C 12 alkoxy groups and the like .
- the reel alkyl thio group may have a substituent, the carbon number of usually about 7 to 60, in particular, phenyl - ( ⁇ - (12 alkylthio group, ⁇ C 12 Arukokishifue two Lou ⁇ ( 12 alkylthio group, ( ⁇ ⁇ (: 12 alkylphenyl—Ci C alkylthio group, 1-naphthyl—Ci C alkylthio group, 2—naphthyl—C i—C 2 alkylthio group, etc.).
- the acyl group usually has about 2 to 20 carbon atoms. Specifically, the acetyl group, the pionyl group, the propylyl group, the isoptylyl group, the pivaloyl group, the benzoyl group, the trifluoroacetyl group, the pentafluoro group, and the like. Examples include a lobenzoyl group.
- the acyloxy group usually has about 2 to 20 carbon atoms. Specifically, it is an acetoxy group, a propionyloxy group, a petityloxy group, an isoptyryloxy group, a bivalyloxy group, a benzoyloxy group, a trifluoroacetyl group. Examples thereof include a xy group and a pen benzoyl fluoro group.
- the amide group usually has about 2 to 20 carbon atoms.
- Examples include a formamide group, a diacetamido group, a dipropioamide group, a dibutyroamide group, a dibenzamide group, a ditrifluoroacetamide group, and a dipentafluorine benzamide group.
- Examples of the acid imide group include a succinimide group and a fumaric acid imide group.
- the imine residue has about 2 to 20 carbon atoms, and specific examples thereof include compounds represented by the following structural formulas. ,
- the substituted amino group usually has about 1 to 40 carbon atoms. Specifically, a methylamino group, a dimethylamino group, an edylamino group, a jetylamino group, a propylamino group, a dipropylamino group, an isopropylamino group, a diisopropylamino group , Ptylamino group, Isoptylamino group, t-Ptylamino group, Pentylamino group, Hexylamino group, Cyclohexylamino group, Heptylamino group, Octylamino group, 2-Ethylhexylamino group, Nonylamino group, Decylamino group, 3, 7 —Dimethyl Octylamino group, Laurylamino group, Cyclopentylamino group, Dicyclopentylamino group, Cyclohexylamino group, Dicyclohexylamino
- substituted silyl groups include trimethylsilyl group, triethylsilyl group, tri-n-propylsilyl group, tri-i-propylsilyl group, t-butylsilyldimethylsilyl group, triphenylsilyl group, tri-p-xylylsilyl group, tribenzylsilyl group, diphenyl
- substituted silyl groups include trimethylsilyl group, triethylsilyl group, tri-n-propylsilyl group, tri-i-propylsilyl group, t-butylsilyldimethylsilyl group, triphenylsilyl group, tri-p-xylylsilyl group, tribenzylsilyl group, diphenyl
- Examples thereof include an enylmethylsilyl group, a t-butyldiphenylsilyl group, and a dimethylphenylsilyl group.
- substituted silyloxy groups include trimethylsilyloxy group, triethylsilyloxy group, tri-n-propylsilyloxy group, tree i-proylsilyloxy group, tert-butylsilyldimethylsilyloxy group, triphenylsilyl Examples thereof include an oxy group, a tri-P-xylylsilyloxy group, a tribenzylsilyloxy group, a diphenylmethylsilyloxy group, a t-butyldiphenylsilyloxy group, and a dimethylphenylsilyloxy group.
- substituted silylthio groups include trimethylsilylthio group, triethylsilylthio group, tri-n-propylsilylthio group, trii-propylsilylthio group, t-butylsilyldimethylsilylthio group, triphenylsilylthio group, trie p- Examples thereof include xylylsilylthio group, tribenzylsilylthio group, diphenylmethylsilylthio group, t-butyldiphenylsilylthio group, and dimethylphenylsilylthio group.
- substituted silylamino group examples include trimethylsilylamino group, triethylsilylamino group, tri-n-propylsilylamino group, tri-i-propylsilylamino group, t-butylsilyldimethylsilylamino group, triphenylsilylamino group, ⁇ Lee P-xylylsilylamino group, tribenzylsilylamino group, diphenylmethylsilylamino group, t-butyldiphenylsilylamino group, dimethylphenylsilylamino group, di (trimethylsilyl) amino group, di (triethylsilyl) amino group, di (Tree n-propylsilyl) amino group, di (tree i-propylsilyl) amino group, di (t-butylsilyldimethylsilyl) amino group, di (triphenylsilyl) amino group, di (
- a monovalent heterocyclic group refers to the remaining atomic group obtained by removing one hydrogen atom from a heterocyclic compound. Yes, the number of carbon atoms is usually about 4 to 60. Specifically, there are a chenyl group, ( ⁇ to 0 12 alkyl enyl group, pyrrolyl group, furyl group, pyridyl group, ⁇ C alkyl pyridyl group, imidazolyl group. And pyrazolyl group, triazolyl group, oxazolyl group, thiazole group, thiadiazole group and the like.
- examples of the monovalent heterocyclic group in the present invention include a heteroaryloxy group and a heteromercapto group.
- the heteroaryloxy group refers to an atomic group in which one hydrogen atom is replaced with an oxygen atom from a heterocyclic compound, and usually has about 4 to 60 carbon atoms.
- Heteroaryl mercapto group refers to an atomic group in which one hydrogen atom is substituted with a sulfur atom from a heterocyclic compound, and usually has about 4 to 60 carbon atoms, specifically, a chain mercapto group, ( ⁇ ⁇ (Alkyl cheryl mercapto group, pyrrolyl mercapto group, furyl mercapto group, pyridyl mercapto group, ( ⁇ ⁇ (: 1 2 alkyl pyridyl mercapto group, imidazolyl mercapto group, pyrazolyl mercapto group, triazolyl mercapto group, Examples are oxazolyl mercapto group, thiazol mercapto group, thiadiazole mercapto group and the like.
- an alkyloxycarbonyl group instead of a strong lpoxyl group (one COOH), an alkyloxycarbonyl group, an aryloxycarbonyl group, an arylalkyloxycarbonyl group or a heteroaryloxy force in which the hydrogen of the strong lpoxyl group is substituted with another group
- An example is a sulfonyl group.
- the alkyloxy group in the alkyloxycarbonyl group include the groups exemplified in the above alkyloxy group.
- Examples of the aryloxy group in the aryloxycarbonyl group include groups exemplified in the above aryloxy group.
- Examples of the arylalkyloxy group in the arylalkyloxycarbonyl group include the groups exemplified in the above arylalkyloxy group.
- Examples of the heteroaryloxy group in the heteroarylcarbonyl group include the groups exemplified in the above heteroaryloxy group.
- aryl group in the aryl group and the aryl group examples are the same as the above-mentioned aryl group.
- the polymer compound of the present invention may contain two or more repeating units represented by the formulas (1) and (2).
- the polymer compound of the present invention may contain a repeating unit other than the repeating units represented by the formula (1) and the formula (2) as long as the fluorescence property and the charge transport property are not impaired. Further, the total of the repeating units represented by the formula (1) and the formula (2) is preferably 10 mol% or more of the total repeating units, more preferably 50 mol% or more, and further preferably 80 mol%. That's it.
- the polymer compound of the present invention has the following formula (5), formula (6), formula (7) or formula (1) in addition to the repeating units represented by formulas (1) and (2). It is preferable to include a repeating unit represented by 8).
- Ar 5 , Ar 6 , and Ar 7 each independently represent an arylene group, a divalent heterocyclic group, or a divalent group having a metal complex structure.
- X 6 represents _C ⁇ C one, one N (R 2 1 ) one, or — (S i R 2 2 R 2 3 ) y —.
- X 7 — CR 1 9 CR 2 .
- R 19 and R 20 each independently represent a hydrogen atom, an alkyl group, an aryl group, a monovalent heterocyclic group, a strong lpoxyl group or a cyano group.
- R 2 1, R 2 2 and R 2 3 are each independently a hydrogen atom, an alkyl group, Ariru group, a monovalent heterocyclic group or ⁇ reel alkyl group.
- a represents an integer of 0 to 1.
- b represents an integer of 1 to 12.
- the arylene group is an atomic group obtained by removing two hydrogen atoms from an aromatic hydrocarbon, and the number of carbon atoms constituting the ring is usually about 6 to 60, preferably 6 to 20 It is.
- the aromatic hydrocarbon includes those having a condensed ring and those having two or more independent benzene rings or condensed rings bonded directly or through a group such as vinylene.
- the arylene group includes a phenylene group (for example, formulas 1 to 3 in the figure below), a naphthalene diyl group (formulas 4 to 13 in the figure below), an anthracenedyl group (formulas 14 to 19 in the figure below), biphenyl diol.
- Group (formula 20-25 in the figure below), fluorene monozyl group (formula 36-38 in the figure below), terfene rugyl group (formula 26-28 in the figure below), stilbene diyl (formula A-D in the figure below), Examples include distilbene-zyl (formulas E and F in the figure below) and fused ring compound groups (formulas 29 to 38 in the figure below).
- a phenylene group, a biphenylene group, a fluorene diyl group, and a stilbene-diyl group are preferable.
- the divalent heterocyclic group means an atomic group remaining after removing two hydrogen atoms from a heterocyclic compound, and the number of carbon atoms constituting the ring is usually about 3 to 60.
- heterocyclic compound refers to an organic compound having a cyclic structure in which not only carbon atoms but also hetero atoms such as oxygen, sulfur, nitrogen, phosphorus, boron and arsenic are included in the ring. The thing included in.
- Examples of the divalent heterocyclic group include the following.
- Divalent heterocyclic group containing nitrogen as a heteroatom Divalent heterocyclic group containing nitrogen as a heteroatom; pyridine-diyl group (formulas 3 9 to 4 4 in the figure below), diazaphenylene group (formulas 4 to 4 8 in the figure below), quinoline diyl group (formula in the figure below) 4 9-6 3), quinoxaline dil group (formula 6 4-6 8), acrylidine dil group (formula 6 9-7 2), bipyridyl dil group (formula 7 3-7 5), phenol Mouth ringyl group (Formulas 7 6 to 7 8 in the figure below), etc.
- a group containing silicon, nitrogen, sulfur, selenium, etc. as a heteroatom and having a fluorene structure (formulas 7 9 to 9 3 in the figure below).
- Examples include groups in which a 5-membered condensed heterocyclic group containing oxygen, nitrogen, sulfur, etc. as a hetero atom is substituted with a phenyl group, a furyl group, or a chenyl group: (Formula 1 20 to 1 2 5 in the figure below).
- the divalent group having a metal complex structure is a remaining divalent group obtained by removing two hydrogen atoms from an organic ligand of a metal complex having an organic ligand.
- the organic ligand usually has about 4 to 60 carbon atoms, for example, 8-quinolinol. And derivatives thereof, benzoquinolinol and derivatives thereof, 2-phenylene pyridine and derivatives thereof, 2-phenylene benzothiazole and derivatives thereof, 2 phenyl benzoxazol and derivatives thereof, porphyrin and derivatives thereof, and the like. It is done.
- Examples of the central metal of the complex include aluminum, zinc, beryllium, iridium, platinum, gold, europium, and terbium.
- Examples of the metal complex having an organic ligand include a low-molecular fluorescent material, a metal complex known as a phosphorescent material, and a triplet light-emitting complex.
- divalent group having a metal complex structure examples include the following (1 2 6 to 1 3 2).
- R is independently a hydrogen atom, a halogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryloxy group, an aryloxy group.
- Arylalkyl group, arylalkyloxy group, arylalkylthio group, acyl group, acyloxy group, amide group, imide group, imine residue, amino group, substituted amino group, substituted silyl group, substituted silyloxy group, substituted silylthio group Represents a substituted silylamino group, a monovalent heterocyclic group, an arylalkenyl group, an arylethynyl group, a strong loxyl group, or a cyano group.
- the carbon atom of the group of formulas 1 to 13 2 may be replaced with a nitrogen atom, an oxygen atom or a sulfur atom, and a hydrogen atom may be replaced with a fluorine atom.
- a repeating unit represented by the above formula (5) in the following formula (9), formula (10), formula (11), formula (12), formula (13), or formula (14) It is preferable from the viewpoint of light emission intensity that the repeating unit shown is included.
- R 2 4 is a halogen atom, an alkyl group, Arukiruokishi group, alkylthio O group, Ariru group, Ariruokishi group, Ariruchio group, ⁇ reel alkyl group, ⁇ reel alkyl O alkoxy group, ⁇ reel alkyl thio group, Ashiru group, Acyloxy group, amide group, acid imide group, imino group, amino group, substituted amino group, substituted silyl group, substituted silyloxy group, substituted silylthio group, substituted silylamino group, monovalent heterocyclic group, aryl alkenyl group, aryl ethynyl group Represents a strong lpoxyl group or a cyano group.
- c represents an integer of 0-4.
- Specific examples of the formula (9) include the following repeating units.
- R 25 and R 26 are each independently a halogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryloxy group, an aryloxy group, an arylalkyl group, an arylalkyloxy group, Arylalkylthio group, acyl group, acyloxy group, amide group, acid imide group, imino group, amino group, Represents a substituted amino group, a substituted silyl group, a substituted silyloxy group, a substituted silylthio group, a substituted silylamino group, a monovalent heterocyclic group, an arylalkenyl group, an arylethylinyl group, a strong loxyl group or a cyano group.
- d and e each independently represent an integer from 0 to 3.
- R 2 7 and R 30 each independently represent a halogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryloxy group, an aryloxy group, an arylalkyl group, an arylalkyloxy group, Arylalkylthio group, acyl group, acyloxy group, amide group, acid imide group, imino group, amino group, substituted amino group, substituted silyl group, substituted silyloxy group, substituted silylthio group, substituted silylamino group, monovalent heterocyclic ring Represents a group, an arylalkenyl group, an arylethynyl group, a strong loxyl group or a cyano group.
- each R 2 8 and R 2 9 independently represents a hydrogen atom, an alkyl group, Ariru group, monovalent heterocyclic group, a force Rupokishiru group or ⁇ cyano group.
- Specific examples of formula (11) include the following repeating units:
- R 3 1 is a halogen atom, an alkyl group, an alkyloxy group, an alkylthio group.
- h represents an integer of 0-2.
- a r 8 and A r 9 each independently represent an arylene group, a divalent heterocyclic group or a divalent group having a metal complex structure.
- i and j each independently represents 0 or 1.
- X s represents 0, S, S 0, S 0 2 , S e, or Te.
- R 3 2 and: 3 3 are each independently a halogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryloxy group, an aryloxy group, an arylalkyl group, an arylalkyloxy group, Arylalkylthio group, acyl group, acyloxy group, amide group, acid imide group, imino group, amino group, substituted amino group, substituted silyl group, substituted silyloxy group, substituted silylthio group, substituted silylamino group, monovalent heterocyclic ring Represents a group, an arylalkenyl group, an arylethynyl group, a strong loxyl group or a cyano group.
- k and 1 each independently represent an integer from 0 to 4.
- X 9 represents ⁇ , S, SO, S0 2 , Se, Te, N—R 3 4 , or Si R 3 5 R 3 6 .
- X 1 1 each independently represent N or C—R 3 7 .
- R 3 4 , R 3 5 , R 3 6 and R 3 7 each independently represents a hydrogen atom, an alkyl group, an aryl group, an aryl alkyl group or a monovalent heterocyclic group.
- R 3 8 and R 4 3 are each independently a halogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryloxy group, an aryloxy group, an arylalkyloxy group, an arylalkyloxy group.
- R 3 9, R 4 °, the R 4 1 and R 4 2 are each independently, be TABLE hydrogen atom, an alkyl group, Ariru group, monovalent heterocyclic group, a carboxyl group or Shiano group.
- a r 1 ° represents an arylene group, a divalent heterocyclic group or a divalent group having a metal complex structure.
- the polymer compound of the present invention may contain a repeating unit represented by the following formula (15) in addition to the repeating unit represented by the formulas (1) and (2) from the viewpoint of increasing the fluorescence intensity. preferable.
- Ai ⁇ i Ai ⁇ s Ar 1 3 and A r 1 4 represent respectively ⁇ Li one independently alkylene group or a divalent heterocyclic group.
- Ar 15 , Ar 16 and Ar 17 each independently represent an aryl group or a monovalent heterocyclic group.
- o and p each independently represent 0 or 1, 0 ⁇ + ⁇ 1.
- repeating unit represented by the above formula (15) include the repeating units of the following formulas 133 to 140.
- R has the same definition as that of the above formulas 1 to 1 3 2.
- a plurality of Rs are contained in one structural formula, but they may be the same or different groups.
- R when R contains an aryl group or a heterocyclic group as a part thereof, they may further have one or more substituents.
- R in which R includes an alkyl chain, they may be linear, branched or cyclic, or a combination thereof. When they are not linear, for example, an isoamyl group, 2 -Ethylhexyl group, 3,7-dimethyloctyl group, cyclohexyl group, 4_ ⁇ ⁇ ( 12 alkyl hexyl hexyl group etc. are examples.
- a branched alkyl chain is included.
- a plurality of R may be connected to form a ring. Further, when R is a group containing an alkyl chain, the alkyl chain may be interrupted by a group containing a hetero atom.
- the hetero atom include an oxygen atom, a sulfur atom, and a nitrogen atom.
- repeating unit represented by the above formula (15) is preferable. Of these, the repeating unit represented by the following formula (15-2) is preferred.
- R 6 5, R 6 6 and R 6 7 are each independently a halogen atom, alkyl group, Arukiruokishi group, an alkylthio group, an alkylamino group, Ariru group, ⁇ Riruokishi group, Ariruchio group, Ariruamino group, ⁇ Lylalkyl group, arylalkyloxy group, arylalkylthio group, arylalkylamino group, acyl group, acyloxy group, amide group, imine residue, substituted silyl group, substituted silyloxy group, substituted silylthio group, substituted silylamino group Group, a monovalent heterocyclic group, an aryl alkenyl group, an arylethynyl group or a cyano group.
- q and r each independently represent an integer of 0 to 4.
- s represents an integer of 1 to 2.
- t is an integer from 0 to 5.
- the repeating unit may be linked with a non-conjugated unit, or the repeating unit may contain those non-conjugated moieties.
- the polymer compound of the present invention may be a lanthanum, a block or a graft copolymer, or a polymer having an intermediate structure thereof, for example, a random copolymer having a block property.
- a random copolymer or a block or graft copolymer having a block property rather than a completely random copolymer is used. I like it. If the main chain is branched and there are 3 or more ends, dendrimers are included.
- the terminal group of the polymer compound of the present invention may be protected with a stable group, because if the radically active group remains as it is, there is a possibility that the light emission characteristics and lifetime when the device is made will be reduced.
- Those having a conjugated bond continuous with the conjugated structure of the main chain are preferred, and examples thereof include a structure in which the aryl group or heterocyclic group is bonded via a carbon-carbon bond.
- substituents described in Chemical Publication No. 10 of JP-A-9-45 4 78 are exemplified.
- polymer compound of the present invention is terminated with the following formulas (1 a), (2 a), (3 a), (3 b), May have the structural unit represented by (4 a) or (4 b) c
- Z 1 represents a hydrogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkyloxy group, an arylalkylthio group, a substituted amino group, or a substituted silyl group.
- Ar 1 Ar 2 , R 11 , R 12 and X 5 are the same as above.
- Z 1 represents a hydrogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkyloxy group, an arylalkylthio group, a substituted amino group, a substituted silyl group.
- R 11 R 12 , R 13 , R 14 , R 15 , R 16 , R 17 , R 18 , X 5 and Z 1 are the same as above.
- the number average molecular weight in terms of polystyrene of the polymer compound of the present invention is from 10 3 to 10 8 , preferably from 10 4 to 10 6 .
- Examples of the good solvent for the polymer compound of the present invention include black mouth form, salt methylene chloride, dichloroethane, tetrahydrofuran, toluene, xylene, mesitylene, tetralin, decalin and n-butylbenzene. Although it depends on the structure and molecular weight of the polymer compound, it can usually be dissolved in these solvents by 0.1% by weight or more.
- the polymer compound of the present invention is preferably a polymer compound having liquid crystallinity.
- the polymer compound having liquid crystallinity means that a molecule containing the polymer compound exhibits a liquid crystal phase.
- the liquid crystal phase can be confirmed by a polarizing microscope, differential scanning calorimetry, X-ray diffraction measurement, and the like.
- Alignment techniques are generally known as liquid crystal alignment techniques, such as “Fundamentals and Applications of Liquid Crystals” (Masamoto Masakazu, Kakuda Kyoji, Industrial Research Society 1991) Chapter 5, “ Structure and Physical Properties of Ferroelectric Liquid Crystals "(Josuke Fukuda and Hideo Takezoe, Corona, 1990) The method described in Chapter 7, “Liquid Crystal”, No. 3 ⁇ No. 1 (1999) pages 3 to 16 can be used. Of these, the rubbing method, the photo-alignment method, the shear stress application method and the pulling coating method are simple, useful and easy to use as the alignment method.
- the rubbing method is a method of lightly rubbing the substrate surface with a cloth or the like.
- a glassy polymer film or the like can be used.
- cloth for rubbing the substrate cloth such as gauze, polyester, cotton, nylon and rayon can be used.
- the alignment film include polyimide, polyamide, PVA, polyester, and nylon, and a commercially available alignment film for liquid crystal can also be used.
- the alignment film can be formed by spin coating or flexographic printing. The cloth used for rubbing can be appropriately selected according to the alignment film to be used.
- the photo-alignment method is a method of providing an alignment function by forming an alignment film on a substrate and irradiating polarized UV light or obliquely irradiating UV light.
- the alignment film include polyimide, polyamide, and polyvinyl cinnamate, and a commercially available alignment film for liquid crystal can also be used.
- the alignment can be performed by sandwiching the aligned polymer material between the substrates subjected to the above-described treatment. At this time, it is necessary to make the substrate a temperature of the liquid crystal phase or isotropic phase. The temperature may be set before or after the high molecular material is sandwiched between the substrates. Alternatively, the polymer material may be simply applied onto a substrate that has been subjected to an orientation treatment.
- the shear stress application method is a method in which another substrate is placed on a polymer material placed on the substrate, and the upper substrate is shifted in one direction at a temperature at which it becomes a liquid crystal phase or an isotropic phase. At this time, a substrate having a higher degree of orientation can be obtained by using a substrate that has been subjected to an orientation treatment as described in the rubbing method or optical orientation method.
- the substrate glass, polymer film or the like can be used, and what is displaced by stress may be a metal rod or the like instead of the substrate.
- the pull-up coating method is a technique in which a substrate is immersed in a polymer solution and pulled up. High minute
- the organic solvent used in the solution and the substrate pulling speed are not particularly limited, but can be selected and prepared according to the degree of orientation of the polymer.
- a polymer having liquid crystallinity can be used, for example, as a light source for polarized light emission when used as a polymer LED, and is useful for increasing the mobility of charges when used as a thin film transistor.
- polymer compounds having repeating units represented by the formulas (1), (3), (4) and (20-0) are represented by the following formulas (16-1), (17-1), It can be produced by condensation polymerization using the compound represented by (18-1) and (20) as one of the raw materials.
- Ar 1 Ar 2 , X 1 and X 2 represent the same meaning as described above.
- X 5 , R 11 , R 12 , R 13 R, R 1 R 16 , R 17 and R 18 have the same meaning as described above.
- R 13 , R 14 , R 15 , R 16 , R 17 and R 18 have the same meaning as described above.
- Ar Ar 2 , X 1 and X 2 are the same as above.
- Y 1 and Y 2 are each independently a halogen atom, an alkyl sulfonate group, an aryl sulfonate group, an aryl alkyl sulfonate group, a borate ester group, a sulfone methyl group, a phosphonium methyl group, a phosphonate methyl group, Represents a monohalogenated methyl group, boric acid group, formyl group, or vinyl group.
- Y 2 has the same meaning as above.
- R 11 R 12 , R 13 , R 14 , R 15 , R 16 , R 17 , R 18 , X 5 , Y 1 and Y 2 represent the same meaning as described above.
- R 13 , R 14 , R 15 , R 16 , R 17 , R 18 , Y 1 and Y 2 represent the same meaning as described above.
- Y 1 and Y 2 are independently a halogen atom, an alkyl sulfonate group, an aryl sulfonate group, an aryl alkyl sulfonate group, a borate ester group, or boric acid from the viewpoint of synthesizing and functional group conversion. It is preferable to be a group.
- High molecular compounds having repeating units represented by formulas (2), (23), (24) and (25) are represented by the following formulas (2-1), (23-1), (24-1) and The compound represented by (25-1) can be produced by condensation polymerization using one of the raw materials.
- Ar 3 , Ar 4 , X 3 and X 4 represent the same meaning as described above.
- X 13 represents a boron atom, a nitrogen atom or a phosphorus atom.
- R 45 , R 46 , R 47 , R 48 , R 49 , R 5Q are each independently a hydrogen atom, a halogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group.
- R 4 6 and R 4 7 , R 4 8 and R 4 9 may be linked to each other to form a ring.
- R 5 1 represents an alkyl group, Ariru group, ⁇ Li Ruarukiru group or monovalent heterocyclic group.
- X 14 represents a boron atom, a nitrogen atom or a phosphorus atom.
- R 5 2 , R 5 3 , R 5 4 , R 5 5 , R 5 6 , and R 5 7 are each independently a hydrogen atom, a halogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryl group Roxy group, arylthio group, arylalkyl group, arylalkyloxy group, arylalkylthio group, acyl group, acyloxy group, amide group, imide group, imine residue, amino group, substituted amino group, It represents a substituted silyl group, a substituted silyloxy group, a substituted silylthio group, a substituted silylamino group, a monovalent heterocyclic group, an aryl alkenyl group, an aryl ethynyl group, a strong
- R 5 3 and R 5 4 , R 5 5 and R 5 6 may be linked to each other to form a ring.
- R 5 8 represents an alkyl group, ⁇ aryl group, ⁇ Li one Ruarukiru group or monovalent heterocyclic group.
- R 5 9, R 6 ° , R 6 1, R 6 2, R 6 3 , and R 6 4 are each independently a hydrogen atom, a halogen atom, an alkyl group, Arukiruokishi group, an alkylthio group, Ariru group, Ariruokishi group , Arylthio group, arylalkyl group, arylalkyloxy group, arylalkylthio group, acyl group, acyloxy group, alkyl group Imido group, Imido group, Imine residue, Amino group, Substituted amino group, Substituted silyl group, Substituted silyloxy group, Substituted silylthio group, Substituted silylamino group, Monovalent heterocyclic group, Aryl alkenyl group, Aryl ethynyl group, Forced loxyl Indicates a group or cyano group.
- R 6 0 and R 6 1
- Ar 3 , Ar 4 , X 3 and X 4 are the same as above.
- Y 3 and Y 4 are each independently a halogen atom, an alkyl sulfonate group, an aryl sulfonate group, an aryl alkyl sulfonate group, a borate ester group, a sulfone methyl group, a phosphonium methyl group, or a phosphonate methyl group.
- X 1 3, R 45, R 46, R 47, R 48, R 49, R 50 and R 5 1 is as defined above.
- Y 3 and ⁇ 4 are each independently a halogen atom, an alkyl sulfonate group, a 7 aryl sulfonate group, a 7 aryl alkyl sulfonate group, a borate ester group, a sulfone methyl group, a phosphonium methyl group, or a phosphonate. It represents a methyl group, a monooctalogenated methyl group, a boric acid group, a formyl group, or a biel group.
- X 1 4, R 5 2 , R 5 3, R 5 4, R 5 5, R 5 6, R 5 7 and R 5 8 are as defined above.
- ⁇ 5 and ⁇ 6 are each independently a halogen atom, alkylsulfo Nate group, aryl sulfonate group, arylalkyl sulfonate group, boric acid ester group, sulfonium methyl group, phosphonium methyl group, phosphonate methyl group, monohalogenated methyl group, boric acid group, formyl Group or vinyl group.
- R 5 9, R 6 ° , R 6 1, R 6 2, R 6 3 , and R 6 4 are as defined above.
- Y 7 and Y 8 are each independently an eight-rogen atom, an alkyl sulfonate group, an aryl sulfonate group, an aryl sulfonate group, a borate ester group, a sulfonylmethyl group, a phosphonium methyl group, a phosphonate methyl group, or a monohalogen group.
- Y 3 , Y 4 , Y 5 , Y 6 , Y 7 and Y 8 are each independently a halogen atom, alkyl sulfonate group, aryl sulfonate group, An alkyl sulfonate group, a borate group or a borate group is preferred.
- the polymer compound having a repeating unit represented by the above formulas (1), (3), (4) and (20-0) of the present invention is represented by the following formulas (16-2), (17-2), (17 -3), (18-2), (18-3), (20-2) and (20-3) are added as one of the raw materials, and the terminal structure is favored by condensation polymerization. Can be controlled.
- Ar 1 Ar 2 , X 1 , X 2 and Y 2 are the same as above.
- ⁇ 1 is a hydrogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryloxy group, an arylalkyl group, an arylalkyl group, an arylalkyloxy group, an arylalkylthio group, a substituted amino group, a substituted silyl group, 1 Valent heterocyclic group, Nyl group or arylenetinyl group is represented.
- Ar Ar 2 , R 11 , R 12 , X 5 , Y 2 and Z 1 represent the same meaning as described above.
- Ar Ar 2 , R 11 , R 12 , X 5 and Y 1 represent the same meaning as described above.
- Zeta 2 is a hydrogen atom, an alkyl group, Arukiruokishi group, an alkylthio group, Ariru group, ⁇ Riruokishi group, Ariruchio group, ⁇ reel alkyl group, ⁇ Li one Ruarukiruoki shea group, ⁇ reel alkyl thio group, substituted amino group, substituted silyl group, Represents a monovalent heterocyclic group, an arylalkenyl group or an aryletenyl group.
- R 11 R 12 , R 13 , R 14 , R 15 , R 16 , R 17 , R 18 , X 5 , Y 2 and Z 1 represent the same meaning as described above.
- R 13 , R 14 , R 15 , R 16 , R 17 , R 18 , Y 2 and Z 1 represent the same meaning as described above.
- R 13 , R 14 , R 15 , R 16 , R 17 , R 18 , Y 1 and Z 2 represent the same meaning as described above.
- the polymer compound having a repeating unit represented by the above formulas (2), (23), (24) and (25) of the present invention has the following formulas (2-2), (23-2), (23-3) ), (24-2), (24-3), (25-2) and (25-3) are added as one of the raw materials, and the terminal structure is preferred by condensation polymerization. Can be controlled.
- ⁇ 3 represents a hydrogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkyloxy group, an arylalkylthio group, a substituted amino group, a substituted silyl group , Monovalent heterocyclic groups, Represents a alkenyl group or an arylethyl group;
- Z 4 represents a hydrogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryloxy group, an aryloxy group, an aryl group, an arylalkyloxy group, an arylalkylthio group, a substituted amino group, a substituted silyl group.
- ⁇ 5 represents a hydrogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkyloxy group, an arylalkylthio group, a substituted amino group, Substituted silyl group, monovalent heterocyclic group, aryl alkenyl group or aryl Represents the Lucer group.
- Z 6 is a hydrogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an arylalkyl group, an arylalkyloxy group, an arylalkylthio group, It represents a substituted amino group, a substituted silyl group, a monovalent heterocyclic group, an aryl alkenyl group or an arylethyl group.
- R 59 , R 6 °, R 61 , R 6 2 , R 6 3 , R 64 and Y 8 represent the same meaning as described above.
- Z 7 is a hydrogen atom, an alkyl group, an alkyloxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an aryl alkyl group, an arylalkyloxy group, an arylalkylthio group, a substituted amino group, It represents a substituted silyl group, a monovalent heterocyclic group, an aryl alkenyl group or an aryl ethynyl group.
- R 5 9 and R 6 . , R 6 1 , R 6 2 , R 6 3 , R 6 4 and Y 7 represent the same meaning as described above.
- Z 8 is a hydrogen atom, an alkyl group, an alkyloxy group, an alkyl group Group, aryl group, aryloxy group, arylthio group, arylalkyl group, arylalkyloxy group, arylalkylthio group, substituted amino group, substituted silyl group, monovalent heterocyclic group, arylalkylene Represents a group or an aryl group.
- Y ′ Y 4 is independently a halogen atom, an alkyl sulfonate group, an alkyl group from the viewpoint of synthesis and functional group conversion. It is preferably a monosulfonate group, an arylalkylsulfonate group, a borate group or a borate group, more preferably a halogen atom.
- alkyl sulfonate group examples include a methane sulfonate group, an ethane sulfonate group, and a trifluoromethane sulfonate group.
- aryl sulfonate group examples include a benzene sulfonate group and a ⁇ -toluene sulfonate group.
- sulfonate group examples include a benzyl sulfonate group.
- boric acid ester group examples include groups represented by the following formulae.
- Examples of the sulfomethyl group include groups represented by the following formulae.
- Examples of the phosphonium methyl group include groups represented by the following formulae.
- Examples of the phosphonate methyl group include groups represented by the following formulae.
- R ' represents an alkyl group, an aryl group or an aryl group.
- Examples of the monohalogenated methyl group include a methyl fluoride group, a methyl chloride group, a methyl bromide group, and a methyl iodide group.
- the (16 1), (17 1) or (18 1) among the compounds represented by the conversion child to a compound Gi ⁇ ganma 4 has other functional groups from compounds of halogen atoms You can.
- a borate group the presence of a palladium catalyst and a base according to the method described in J. Org. Chem., 7508 (1 995) or after reacting with a metalation reagent and reacting with a borate ester below, it can be synthesized by a method of reacting with dipolane. ⁇
- the functional group of the compound represented by X 1 X, (2-1), (23-1) or (24-1) can be converted by the same method. The same applies to the following functional group conversion reaction.
- Metalization reagents include methyllithium, n-butyllithium, sec-butyllithium, alkyllithium such as monobutyllithium, arylelithium such as phenyllithium, naphthyllithium, and tolyllithium, lithium diisopropyl pyramide, Examples include lithium amides such as lithium-2,2,6,6-tetramethylpiperidide and lithium hexamethyldisilazide, and magnesium metal. Examples of boric acid esters include trimethoxyporane and triethoxyborane.
- boric acid group it can be synthesized by a method of hydrolyzing the boric acid ester group compound under an acid or basic condition.
- the above boric acid group or boric acid ester group compound is reacted with a peroxide. Then, it can be synthesized by a method of reacting with a sulfonate reagent in the presence of a base.
- Examples of the peroxide include hydrogen peroxide, t-butyl hydroperoxide, peracetic acid, perbenzoic acid and the like.
- Bases include tertiary amines such as trimethylamine, triethylamine, triisopropylamine, tri-n-butylamine, diisopropylethylamine, N, N, N ', N, and tetramethylethylenediamine.
- Pyridines such as pyridine and 4-dimethylaminopyridine are exemplified.
- sulfonation reagents include alkyl sulfonyl chlorides such as methane sulfonyl chloride and trifluoro sulfonyl chloride, alkyl sulfonic anhydrides such as methyl sulfonic anhydride and trifluoromethane sulfonic anhydride, benzene Aryl sulfonyl chlorides such as sulfonyl chloride, p-toluenesulfonyl chloride, allylic sulfonic anhydrides such as benzene sulfonic anhydride, p-toluene sulfonic anhydride, aryls such as benzyl sulfonyl chloride Examples include arylsulfonylsulfonic acid anhydrides such as alkylsulfonium chloride and benzylsulfonic acid anhydrous.
- a formyl group it can be synthesized by a method in which a compound having a halogen atom is reacted with a metalation reagent and then reacted with N, N-dimethylformamide.
- Y 'Y 4 is Ru or a method of halogenation are exemplified after the reaction with formaldehyde after reaction with the metal reagent of the compound of halogen atoms.
- Examples of the reducing agent include sodium borohydride, lithium aluminum hydride, diisobutyl aluminum hydride, hydrogen and the like.
- Examples of the halogenating reagent include chlorination reagents such as carbon tetrachloride, N-chlorosuccinimide, and thionyl chloride, and bromination reagents such as carbon tetrabromide, N-promosuccinimide, phosphorus tribromide, and phosphorus bromide. Illustrated. The metalation reagent is the same as above.
- a sulfomethyl group it can be synthesized by a method of reacting a compound of the above monooctalogenated methyl group with a sulfide.
- sulfide examples include diallyl sulfides such as dimethyl sulfide and jetyl sulfide, cyclic sulfides such as tetrahydrothiophene, and aryl sulfides such as diphenyl sulfide and ditolyl sulfide.
- diallyl sulfides such as dimethyl sulfide and jetyl sulfide
- cyclic sulfides such as tetrahydrothiophene
- aryl sulfides such as diphenyl sulfide and ditolyl sulfide.
- a phosphonium methyl group it can be synthesized by a method of reacting the above monohalogenated methyl group compound with phosphine.
- phosphine examples include trimethylphosphine, triethylphosphine, And triarylalkylphosphine such as triphenylphosphine and tritolylphosphine.
- a phosphonate methyl group it can be synthesized by a method of reacting the above monohalogenated methyl group compound with a phosphite.
- phosphites examples include trimethyl phosphite and triethyl phosphite.
- Gi ⁇ ganma 4 is synthesized by the He ck reaction of the compound with ethylene halogen atom.
- the compound represented by the above formula (16-2) can be synthesized from, for example, a compound in which Y 1 and Y 2 are bromine atoms among the corresponding compounds represented by (16-1).
- the reaction scheme is shown below.
- (2-2), (17-2), (17 1 3), (18-2), (18-3), (20-2), (20 3), (23 1 2) , (23-3), (24-2), (24-3), (25-2), (25-3) can also be synthesized.
- As a method of condensation polymerization when a vinylene group is included in the main chain, it can be produced, for example, by the method described in JP-A-5-202355 using other monomers as necessary.
- R H, alkyl
- the monomer can be dissolved in an organic solvent and reacted, for example, with an alkali or a suitable catalyst at a temperature not lower than the melting point of the organic solvent and not higher than the boiling point.
- an alkali or a suitable catalyst for example, “Organic Reactions”, Vol. 14, pp. 270-490, John Wiley & Sons, Inc., 1965, “Organic Reactions” rganic Reactions), 27, 345-390, John Wi 1ey & Sons, Inc., 1982, "Or gan ic Synth he ses.” )
- “Organic Reactions” Vol. 14, pp. 270-490, John Wiley & Sons, Inc., 1965, “Organic Reactions” rganic Reactions), 27, 345-390, John Wi 1ey & Sons, Inc., 1982, "Or gan ic Synth he ses.” )
- Collective Vol. 6 C o 1 1 ecti V e vo
- Ru may be a known method described, for example.
- the organic solvent varies depending on the compound and reaction used, it is generally preferable that the solvent used is sufficiently deoxygenated to allow the reaction to proceed in an inert atmosphere in order to suppress side reactions. Similarly, it is preferable to perform a dehydration treatment. (However, this is not the case in the case of a two-phase reaction with water such as the Suzuki coupling reaction.)
- an alkali and a suitable catalyst are added suitably. These may be selected according to the reaction used.
- the alkali or catalyst is preferably one that is sufficiently dissolved in the solvent used in the reaction.
- a method of mixing an alkali or a catalyst slowly stir the reaction solution under an inert atmosphere such as argon or nitrogen and add a solution of the catalyst or the catalyst.
- a method of slowly adding the reaction solution to the solution is exemplified.
- the purity affects the light emitting characteristics. Therefore, after the monomer before polymerization is purified by methods such as distillation, sublimation purification, recrystallization, etc. Polymerization is preferred, and after the synthesis, purification treatment such as reprecipitation purification and fractionation by chromatography is preferred.
- the respective monomers may be mixed and reacted at once, or may be divided and mixed as necessary.
- reaction conditions are described.
- an alkali equivalent to the functional group of the monomer is used, preferably 1 to 3 equivalents.
- the alkali include, but are not limited to, metal alcoholates such as potassium tert-butoxide, sodium-t-butoxide, sodium ethylate, lithium methylate, octadeide reagents such as sodium hydride, sodium amide, etc. Amides and the like can be used.
- the solvent N, N-dimethylformamide, tetrahydrofuran, dioxane, toluene and the like are used.
- the reaction can be allowed to proceed at a reaction temperature of usually from room temperature to about 1550.
- the reaction time is, for example, 5 minutes to 40 hours, but it is sufficient that the polymerization proceeds sufficiently, and it is not necessary to leave the reaction for a long time after the reaction is completed. 4 hours.
- the concentration during the reaction is poor if the reaction is too dilute, and if the concentration is too high, it becomes difficult to control the reaction. Therefore, select a concentration within the range from about 0.0 lwt% to the maximum concentration at which it dissolves. Usually, it is in the range of 0.1 wt% to 2 Owt%.
- N, N-dimethylformamide is a solvent having a relatively high boiling point such as N-methylpyrrolidone
- reaction temperature is about 80 to 160
- reaction time is about 1 to 100 hours.
- inorganic bases such as potassium carbonate, sodium carbonate, barium hydroxide, triethylamine, etc.
- an inorganic salt such as organic base, cesium fluoride or the like in an equivalent amount or more, preferably 1 to 10 equivalents with respect to the monomer.
- the inorganic salt may be reacted as an aqueous solution in a two-phase system.
- the solvent include N, N-dimethylformamide, toluene, dimethochetan, tetrahydrofuran and the like.
- a temperature of about 50 to 160 is preferably used. The temperature may be raised to near the boiling point of the solvent and refluxed.
- the reaction time is about 1 to 200 hours.
- a monomer prepared separately by reacting a halide with metal Mg in an ether solvent such as tetrahydrofuran, jetyl ether, or dimethoxyethane to prepare a Grignard reagent solution.
- An example is a method of mixing a solution and adding a nickel or palladium catalyst while paying attention to excess reaction, and then reacting the mixture while raising the temperature and refluxing.
- the Grignard reagent is used in an amount equivalent to or more, preferably 1 to 1.5 equivalents, more preferably 1 to 1.2 equivalents, relative to the monomer.
- the reaction can be performed according to a known method.
- a compound represented by the following formula (18-1) can be produced by reacting a compound represented by the following formula (19) in the presence of an acid.
- R 14 R 15 R 16 R 17 (In the formula, R 1 1 to 1 8 , Y 1 and ⁇ 2 are the same as above.)
- R 4 4 represents a hydrogen atom, an alkyl group, an aryl group, an aryl alkyl group or a monovalent heterocyclic group.
- the acid used in the synthesis of (18-1) above may be either Lewis acid or Bronsted acid. Hydrochloric acid, bromic acid, hydrofluoric acid, sulfuric acid, nitric acid, formic acid, acetic acid, propionic acid, sulfur Examples include acids, benzoic acid, boron fluoride, aluminum chloride, tin (IV) chloride, iron (11) chloride, titanium tetrachloride or mixtures thereof.
- the reaction temperature is preferably -80 ° C to the boiling point of the solvent.
- Solvents used in the reaction include saturated hydrocarbons such as pentane, hexane, heptane, octane, and cyclohexane, unsaturated hydrocarbons such as benzene, toluene, ethylbenzene, and xylene, carbon tetrachloride, chloroform, and dichloromethane.
- Halogenated saturated hydrocarbons such as chlorobutane, bromobutane, black-opened pentane, bromopentane, black-open hexane, bromohexane, chlorocyclohexane, and promotic hexane; Halogenated unsaturated hydrocarbons, methanol, ethanol, propanol, isopropanol, butanol, tert-butyl alcohol and other alcohols, formic acid, acetic acid, propionic acid and other carboxylic acids, dimethyl ether, jetyl ether , Ethers such as methyl tert-butyl ether, tetrahydrofuran, tetrahydropyran, dioxane, etc., inorganic acids such as hydrochloric acid, bromic acid, hydrofluoric acid, sulfuric acid, nitric acid, etc.
- a mixed solvent may be used.
- reaction for example, it can be obtained by usual post-treatment such as quenching with water, extraction with an organic solvent, and evaporation of the solvent.
- the product can be isolated and purified by methods such as preparative chromatography and recrystallization.
- each of X X 2 independently represents a halogen atom, an alkyl sulfonate group, an aryl sulfonate group, an aryl alkyl sulfonate group, a boric acid ester group, or a boric acid group.
- the compound represented by the above formula (19) can be synthesized by reacting the compound represented by the following formula (20) with a Grignard reagent or an organic Li compound.
- the Grignard reagents used in the above reaction include methylmagnesium chloride, methylmagnesium bromide, ethylmagnesium chloride, ethylmagnesium bromide, propylmagnesium chloride, propylmagnesium bromide, butylmagnesium chloride, butylmagnesium bromide, hexylmagnesium bromide Octylmagnesium bromide, decylmagnesium bromide, arylmagnesium chloride, arylmagnesium chloride, benzylmagnesium chloride, phenylmagnesium bromide, naphthylmagnesium bromide, and tolylmagnesium bromide.
- organic Li compound examples include methyl lithium, ethyl lithium, propyl lithium, butyl lithium, phenyl lithium, naphthyl lithium, benzyl lithium, trityl lithium and the like.
- the reaction method is not particularly limited, but the reaction can be carried out in an inert gas atmosphere such as nitrogen or argon in the presence of a solvent.
- the reaction temperature is -8 (TC to the boiling point of the solvent.
- Solvents used in the reaction include saturated hydrocarbons such as pentane, hexane, heptane, octane, and cyclohexane, benzene, toluene, ethylbenzene, and xylene.
- unsaturated hydrocarbons such as unsaturated hydrocarbons, dimethyl ether, jetyl ether, methyl-t-butyl ester, terahydrofuran, terahydropyran, dioxane and the like, and even if a single solvent or a mixed solvent thereof is used. Good.
- reaction for example, it can be obtained by usual post-treatment such as quenching with water, extraction with an organic solvent, and evaporation of the solvent.
- the product can be isolated and purified by methods such as preparative chromatography and recrystallization.
- the present invention provides a compound represented by the following formula (2 2) among the compounds represented by the above formula (20) by reacting the compound represented by the following formula (2 1) with sodium perborate. Can be manufactured.
- the reaction method can be carried out in the presence of a carboxylic acid solvent such as acetic acid, trifluoroacetic acid, propionic acid or butyric acid.
- a carboxylic acid solvent such as acetic acid, trifluoroacetic acid, propionic acid or butyric acid.
- the reaction temperature is preferably from o ° c to the boiling point of the solvent.
- reaction for example, it can be obtained by usual post-treatment such as quenching with water, extraction with an organic solvent, and evaporation of the solvent.
- the product can be isolated and purified by methods such as preparative chromatography and recrystallization.
- bases used include metal hydrides such as lithium hydride, sodium hydride, and lithium hydride, and organic lithium reagents such as methyl lithium, n-butyl lithium, sec-butyl lithium, t-butyl lithium, and phenyl lithium.
- Grignard reagents such as rumagnesium chloride, lithium diisopropylamide, lithium hexamethyldisilazide, sodium hexamethyldisilazide, alkali metal amides such as strong hexamethyldisilazide, lithium hydroxide, sodium hydroxide
- inorganic bases
- halides include methyl chloride, methyl bromide, methyl iodide, chloro chloride, chloro bromide, chloro iodide, propyl chloride, propyl bromide, propyl iodide, butyl chloride, butyl bromide, and butyl iodide.
- the reaction can be carried out in the presence of a solvent under an inert gas atmosphere such as nitrogen or argon.
- the reaction temperature is preferably from ⁇ 80 ° C. to the boiling point of the solvent.
- Solvents used in the reaction include saturated hydrocarbons such as pentane, hexane, heptane, octane, and cyclohexane, unsaturated hydrocarbons such as benzene, toluene, ethylbenzene, and xylene, dimethyl ether, jetyl ether, methyl-t
- Examples include ethers such as ptyl ether, tetrahydrofuran, tetrahydropyran, dioxane, etc., single solvent, trimethylamine, triethylamine, ⁇ , ⁇ , ⁇ ', N' — tetramethylethylenediamine, pyridine, etc.
- Amines such as ⁇ , ⁇ -dimethylformamide, ⁇ , ⁇ -dimethylacetamide, ⁇ , ⁇ -jetylacetamide, ⁇ -methylmorpholine oxide, ⁇ -methyl-2-pyridone Etc., using a single solvent or a mixture of these May be.
- reaction for example, it can be obtained by usual post-treatment such as quenching with water, extraction with an organic solvent, and evaporation of the solvent.
- the product can be isolated and purified by methods such as preparative chromatography and recrystallization.
- the compounds represented by the above formulas (2-1), (16-1), (17-1), (18-1-1), (23-1) or (24-1) are represented by ⁇ 1 ⁇ ⁇ It can be converted into materials such as medical and agrochemical intermediates and organic electronic materials by derivatization and polymerization reaction of 6 parts.
- the polymer compound of the present invention can also be used as a material for electronic devices. It can also be used as an organic semiconductor for Rungis evening, a dye for lasers, and a material for organic solar cells.
- the polymer compound of the present invention has fluorescence or phosphorescence in the solid state and can be used as a polymer light emitter (high molecular weight light emitting material). Further, the polymer compound has an excellent electron transport ability, and can be suitably used as a polymer LED material or a charge transport material.
- the polymer LED using the polymer light emitter is a high-performance polymer LED that can be driven with low voltage and high efficiency.
- the polymer LED can be preferably used for a backlight of a liquid crystal display, a curved or flat light source for illumination, a segment type display element, a dot matrix flat panel display, and the like.
- the polymer compound of the present invention is also used as a conductive thin film material such as a laser dye, an organic solar cell material, an organic semiconductor for organic transistors, a light-emitting thin film, a conductive thin film, or an organic semiconductor thin film. be able to.
- the polymer LED of the present invention has an organic layer between electrodes composed of an anode and a cathode, and the organic layer contains the polymer compound of the present invention.
- the organic layer may be any of a light emitting layer, a hole transport layer, an electron transport layer, and the like, but the organic layer is preferably a light emitting layer.
- the light emitting layer refers to a layer having a function of emitting light
- the hole transport layer refers to a layer having a function of transporting holes
- the electron transport layer has a function of transporting electrons.
- the electron transport layer and the hole transport layer are collectively referred to as a charge transport layer. Two or more light emitting layers, hole transport layers, and electron transport layers may be used independently.
- the organic layer is a light emitting layer
- the light emitting layer which is an organic layer may further contain a hole transport material, an electron transport material or a light emitting material.
- the light-emitting material refers to a material that exhibits fluorescence and / or phosphorescence.
- the mixing ratio of the hole transport material is lwt% to 80 wt%, preferably 5 wt% to 6 wt% with respect to the entire mixture. 0 wt%.
- the mixing ratio of the electron transport material is 1 wt% to 80 wt%, preferably 5 wt% to 6 Owt%, based on the entire mixture.
- the mixing ratio of the light emitting material to the whole mixture is 1 wt% to 8 Owt%, preferably 5 wt% to 6 Owt%.
- the mixing ratio of the light emitting material with respect to the whole mixture is lwt% to 50wt%, preferably 5wt%.
- the total amount of the hole transport material and the electron transport material is lwt% to 5 Owt%, preferably 5 wt% to 4 Owt%.
- Content of the polymer compound of the present invention Is 99 wt% to 2 O wt%.
- the hole transport material, the electron transport material, and the light emitting material to be mixed known low molecular compounds and high molecular compounds can be used, but it is preferable to use a high molecular compound.
- fluorescent materials for low molecular weight compounds include naphthalene derivatives and anthracene Or its derivatives, perylene or its derivatives, dyes such as polymethine, xanthene, coumarin, and cyanine, metal complexes of 8-hydroxyquinoline or its derivatives, aromatic amines, tetraphenylcyclopentene Alternatively, a derivative thereof, tetraphenylbutadiene, or a derivative thereof can be used.
- JP-A-57-51781 and 59-194393 can be used.
- the polymer compound of the present invention can be mixed with at least one material selected from a hole transport material, an electron transport material, and a light emitting material, and used as a light emitting material or a charge transport material.
- at least one material selected from a hole transport material, an electron transport material, and a light emitting material and used as a light emitting material or a charge transport material.
- two or more polymer compounds of the present invention may be used.
- the content ratio of at least one material selected from the hole transport material, electron transport material, and luminescent material and the polymer compound of the present invention may be determined according to the use, but in the case of the use of the luminescent material, The same content ratio as in the light emitting layer is preferable.
- the film thickness of the light-emitting layer of the polymer LED of the present invention varies depending on the material used, and may be selected so that the drive voltage and the light emission efficiency are appropriate. It is preferably 2 nm to 500 nm, more preferably 5 nm to 200 nm.
- Examples of the method for forming the light emitting layer include a method by film formation from a solution.
- the film formation method from solution includes spin coating method, casting method, micro gravure coating method, gravure coating method, bar coating method, roll coating method, wire bar coating method, dip coating method, spray coating method, screen.
- Coating methods such as printing methods, flexographic printing methods, offset printing methods, and ink jet printing methods can be used.
- Printing methods such as a screen printing method, a flexographic printing method, an offset printing method, and an ink jet printing method are preferable because pattern formation and multi-color coating are easy.
- the ink composition used in the printing method or the like only needs to contain at least one polymer compound of the present invention.
- a hole transport material, an electron transport material, a light emitting material It may contain additives such as solvents and stabilizers.
- the proportion of the polymer compound of the present invention in the ink composition is 20 wt% to 100 wt%, preferably 40 wt% to the total weight of the composition excluding the solvent. 10 Ow t%.
- the proportion of the solvent is lwt% to 99.9 wt%, preferably 6 Owt% to 99.5 wt%, more preferably, with respect to the total weight of the composition. 8 Owt% to 99. Owt%.
- the viscosity of the ink composition varies depending on the printing method.However, when the ink composition passes through the ejection device, such as the ink jet printing method, the viscosity is reduced to prevent clogging or flight bending during ejection. In 25, it is preferably in the range of 1 to 2 OmPa ⁇ s.
- the solvent is a chlorinated solvent such as black mouth form, methylene chloride or dichloroethane, or an ether solvent such as tetrahydrofuran.
- aromatic hydrocarbon solvents such as toluene and xylene, cannes solvents such as acetone and methylethylketone, and ester solvents such as ethyl acetate, butyl acetate and cetyl cersol acetate.
- the polymer LED of the present invention includes a polymer LED in which an electron transport layer is provided between the cathode and the light-emitting layer, and a polymer LED in which a hole transport layer is provided between the anode and the light-emitting layer. And a polymer LED having an electron transport layer provided between the cathode and the light-emitting layer, and a hole transport layer provided between the anode and the light-emitting layer.
- the polymer LED of the present invention has a hole transport layer, as the hole transport material used, Polyvinylcarbazol or derivatives thereof, polysilane or derivatives thereof, polysiloxane derivatives having aromatic amines in the side chain or main chain, pyrazoline derivatives, allylamamine derivatives, stilbene derivatives, triphenyldiamine Derivatives, polyaniline or derivatives thereof, polythiophene or derivatives thereof, polypyrrole or derivatives thereof, poly (p-phenylenevinylene) or derivatives thereof, or poly (2,5-Chenylenevinylene) or derivatives thereof, etc. Is exemplified.
- JP-A-6 3-7 0 2 5 7, JP 6 3-1 7 5 8 6 0, JP-A 2-1 3 5 3 5 9 Gazette, 2-1 3 5 3 6 1 Gazette, 2-2 0 9 9 8 8 Gazette, 3-3 7 9 9 2 Gazette, 3-1 5 2 1 8 4 Gazette And the like are exemplified.
- polyvinyl carbazole or a derivative thereof, polysilane or a derivative thereof, a polysiloxane derivative having an aromatic amine compound group in a side chain or a main chain a polyamine
- Polymeric hole transport materials such as phosphorus or derivatives thereof, polythiophene or derivatives thereof, poly (p-phenylenevinylene) or derivatives thereof, or poly (2,5-diethylenevinylene) or derivatives thereof are preferable, and more preferable.
- polyvinyl carbazole or derivatives thereof, polysilane or derivatives thereof, and polysiloxane derivatives having an aromatic amine in the side chain or main chain are preferable, and more preferable.
- Examples of the hole transport material of low molecular weight compounds include pyrazoline derivatives, arylamine derivatives, stilbene derivatives, and triphenyldiamine derivatives. In the case of a low molecular weight hole transport material, it is preferable to use it dispersed in a polymer binder.
- polymer binder to be mixed those not extremely disturbing charge transport are preferred, and those not strongly absorbing visible light are preferably used.
- the polymer binder include poly (N-vinylcarbazole), polyaniline or derivatives thereof, polythiophene or derivatives thereof, poly (p-phenylenevinylene) or derivatives thereof, poly (2,5-chater). Bilenvinylene) or derivatives thereof, polycarbonate, polyacrylate, polymethyl acrylate, polymethyl methacrylate, polystyrene, polyvinyl chloride, polysilane, polysiloxane and the like.
- Poly (N-vinylcarbazol) or a derivative thereof can be obtained, for example, from a vinyl monomer by cationic polymerization or radical polymerization.
- Polysilane or its derivatives are listed in Chemical Review (Chem. Rev.) Vol. 89, 1 3 5 9 (1 9 8 9), UK patent GB 2 3 0 0 1 9 6 Examples thereof include compounds described in the specification. As the synthesis method, the methods described in these can be used, but the Kipping method is particularly preferably used.
- polysiloxane or a derivative thereof has almost no hole transport in the siloxane skeleton structure
- those having the structure of the low molecular hole transport material in the side chain or main chain are preferably used.
- those having a hole transporting aromatic amine in the side chain or main chain are exemplified.
- the method for forming the hole transport layer is not limited, but as a low molecular hole transport material, a method of forming a film from a mixed solution with a polymer binder is exemplified. In the case of a polymer hole transport material, a method of film formation from a solution is exemplified.
- the solvent used for film formation from a solution is not particularly limited as long as it can dissolve a hole transport material.
- the solvent include chlorine solvents such as chloroform, methylene chloride and dichloroethane; ether solvents such as tetrahydrofuran; aromatic hydrocarbon solvents such as toluene and xylene; ketone solvents such as acetone and methyl ethyl ketone.
- ester solvents such as ethyl acetate, butyl acetate and ethyl cellosolve acetate.
- a spin coating method from a solution As a film-forming method from a solution, a spin coating method from a solution, a casting method, a micro gravure coating method, a gravure coating method, a bar coating method, a roll coating method, a wire bar coating method, a dip coating method, a spray coating method, Coating methods such as screen printing, flexographic printing, offset printing, and inkjet printing can be used.
- the film thickness of the hole transport layer varies depending on the material used and may be selected so that the drive voltage and light emission efficiency are appropriate. At least, the thickness should be such that no pinholes are generated. If the thickness is too thick, the drive voltage of the element increases, which is not preferable. Therefore, the film thickness of the hole transport layer is, for example, 1 nm to 1 m, preferably 2 nm to 500 nm, and more preferably 5 nm to 200 nm.
- electron transport materials can be used, such as oxazazole derivatives, anthraquinodimethane. Or a derivative thereof, benzoquinone or a derivative thereof, naphthoquinone or a derivative thereof, anthraquinone or a derivative thereof, tetracyananthraquinodimethane or a derivative thereof, a fluorenone derivative, diphenyldisyanoethylene or a derivative thereof, a diphenoquinone derivative, or 8-hydroxy
- Examples include metal complexes of quinoline or derivatives thereof, polyquinoline or derivatives thereof, polyquinoxaline or derivatives thereof, polyfluorene or derivatives thereof, and the like.
- oxadiazole derivatives benzoquinone or derivatives thereof, anthraquinones or derivatives thereof, or metal complexes of 8-hydroxyquinoline or derivatives thereof, polyquinoline or derivatives thereof, polyquinoxaline or derivatives thereof, and polyfluorene or derivatives thereof are preferred.
- 2- (4-biphenyl) -5- (4-t-butylphenyl) — 1,3,4-oxadiazol, benzoquinone, anthraquinone, tris (8-quinolinol) aluminum, and polyquinoline are more preferable.
- the vacuum deposition method from powder or by film formation from a solution or molten state is used.
- a method by film formation from a molten state is exemplified.
- the above polymer binder may be used in combination.
- the solvent used for film formation from a solution is not particularly limited as long as it can dissolve an electron transport material and Z or a polymer binder.
- the solvent include chlorine solvents such as chloroform, methylene chloride, dichloroethane, ether solvents such as tetrahydrofuran, aromatic hydrocarbon solvents such as toluene and xylene, ketone solvents such as acetone and methylethylketone, Examples are ester solvents such as ethyl acetate, butyl acetate, and cetyl cellosolvate.
- Film formation methods from solution or molten state include spin coating method, casting method, micro gravure coating method, gravure coating method, bar coating method, roll coating method. Coating methods such as the coating method, wire-barco coating method, dip coating method, spray coating method, screen printing method, flexographic printing method, offset printing method, and inkjet printing method can be used.
- the film thickness of the electron transport layer varies depending on the material used, and it may be selected so that the drive voltage and the light emission efficiency are appropriate. However, at least a thickness that does not cause pinholes is required. Yes, if it is too thick, the drive voltage of the element will increase, which is not preferable. Therefore, the thickness of the electron transport layer is, for example, 1 nm to 1 xm, preferably 2 nm to 500 nm, and more preferably 5 nm to 200 nm.
- charge injection layers those having the function of improving the charge injection efficiency from the electrodes and having the effect of lowering the driving voltage of the element are particularly the charge injection layers (hole injection layers). Layer, electron injection layer).
- the charge injection layer or an insulating layer having a thickness of 2 nm or less may be provided adjacent to the electrode.
- a thin buffer layer may be inserted at the interface between the charge transport layer and the light emitting layer to improve or prevent mixing.
- the order and number of layers to be laminated, and the thickness of each layer can be appropriately used in consideration of the light emission efficiency and the element lifetime.
- a polymer LED provided with a charge injection layer includes a polymer LED provided with a charge injection layer adjacent to the cathode, and a charge injection layer provided adjacent to the anode.
- the provided polymer LED can be mentioned.
- Anode Z Charge injection layer No hole transport layer Z Light emitting layer / Cathode
- Anode Z charge injection layer / hole transport layer / light emitting layer Z electron transport layer Z charge injection layer Z cathode Specific examples of the charge injection layer include a layer containing a conductive polymer, an anode and a hole transport layer A layer including a material having an ionization potential of an intermediate value between the anode material and the hole transport material included in the hole transport layer, and provided between the cathode and the electron transport layer. And a layer containing a material having an electron affinity of an intermediate value between the electron transporting material contained in the electron transporting layer and the like.
- the electric conductivity of the conducting polymer is preferably at 10_ 5 SZcm least 10 3 or less, and for decreasing leak current between light emitting pixels is more preferably 10_ 5 SZcm least 10 2 or less, 1 0 "5 S / cm or more and 10 1 or less.
- the electric conductivity of the conducting polymer is preferably from 10- 5 SZcm than 10 3 S / cm, the leak current between light emitting pixels to reduce, the following more preferably 10 5 3 sheathing 111 or more 10 2 SZcm, 10- 5 SZcm least 10 1 SZcm less is more preferred.
- the electrical conductivity of the conducting polymer in order to a 10_ 5 SZcm least 10 3 or less, a suitable amount of ions are doped into the conducting polymer.
- the types of ions to be doped are anions for the hole injection layer and cations for the electron injection layer.
- anions include polystyrene sulfonate ions, alkylbenzene sulfonate ions, camphor sulfonate ions and the like.
- cations include lithium ions, sodium ions, potassium ions, and tertylamine monoxide. An example is muon.
- the thickness of the charge injection layer is, for example, 1 nm to 100 nm, and preferably 2 nm to 50 nm.
- the material used for the charge injection layer may be appropriately selected in relation to the material of the electrode and the adjacent layer, such as polyaniline and derivatives thereof, polythiophene and derivatives thereof, polypyrrole and derivatives thereof, polyphenylenevinylene and derivatives thereof, Polyethylene vinylene and its derivatives, Polyquinoline and its derivatives, Polyethylene Examples include noxaline and its derivatives, conductive polymers such as polymers containing an aromatic amine structure in the main chain or side chain, metal phthalocyanines (such as copper phthalocyanine), and vigorous bonbons.
- An insulating layer having a thickness of 2 nm or less has a function of facilitating charge injection.
- the material for the insulating layer include metal fluorides, metal oxides, and organic insulating materials.
- a polymer LED with an insulating layer with a thickness of 2 nm or less is a polymer LED with an insulating layer with a thickness of 2 nm or less adjacent to the cathode, and an insulating layer with a thickness of 2 nm or less adjacent to the anode.
- Insulating layer with an anode thickness of 2 nm or less Z light emitting layer cathode
- the substrate on which the polymer LED of the present invention is formed may be any substrate that does not change when an electrode is formed and an organic layer is formed. Examples thereof include glass, plastic, polymer film, and silicon substrate.
- the opposite electrode is preferably transparent or translucent.
- the anode and the cathode of the polymer LED of the present invention is transparent or translucent.
- the anode side is preferably transparent or translucent.
- a conductive metal oxide film, a translucent metal thin film, or the like is used as the material of the anode.
- films made of conductive glass made of indium oxide, zinc oxide, tin oxide, and their composites such as indium tin oxide (ITO) and indium 'zinc' oxide ( NESA, etc.), gold, platinum, silver, copper, etc. are used, and ITO, indium zinc oxide, and tin oxide are preferred.
- the manufacturing method include vacuum deposition, sputtering, ion plating, and plating.
- an organic transparent conductive film such as polyaniline or a derivative thereof, polythiophene or a derivative thereof may be used as the anode.
- the film thickness of the anode can be appropriately selected in consideration of light transmittance and electric conductivity.
- the film thickness is 10 nm to 10 m, preferably 20 nm to 1 ⁇ m. More preferably, it is 50 nm to 500 nm.
- the material of the cathode used in the polymer LED of the present invention is preferably a material having a low work function.
- metals such as lithium, sodium, potassium, rubidium, cesium, beryllium, magnesium, calcium, strontium, barium, aluminum, scandium, vanadium, zinc, yttrium, indium, cerium, samarium, europium, terbium, ytterbium, And alloys of two or more of them, or one or more of them and one or more of gold, silver, platinum, copper, manganese, titanium, cobalt, nickel, tungsten, tin, graph Eight or graphite intercalation compounds are used.
- alloys include magnesium-silver alloy, magnesium-indium alloy, magnesium-aluminum alloy, indium-silver alloy, lithium-aluminum alloy, lithium-magnesium alloy, lithium-indium alloy, calcium-aluminum alloy.
- the cathode may have a laminated structure of two or more layers.
- the thickness of the cathode can be appropriately selected in consideration of electric conductivity and durability, but is, for example, 10 nm to 10 m, preferably 20 nm to 1 zm, and more preferably Is between 50 nm and 500 nm.
- a method for producing the cathode a vacuum deposition method, a sputtering method, a laminating method in which a metal thin film is thermocompression-bonded, or the like is used.
- a layer made of a conductive polymer or a layer made of a metal oxide, a metal fluoride, an organic insulating material, or the like with an average film thickness of 2 nm or less may be provided between the cathode and the organic layer.
- a protective layer for protecting the polymer LED may be attached.
- a protective layer and Z or a protective force par in order to protect the device from the outside.
- a polymer compound, metal oxide, metal fluoride, metal boride and the like can be used.
- a glass plate, a plastic plate having a surface subjected to low water permeability treatment, or the like can be used, and the cover is bonded to the element substrate with a heat-effect resin or a photo-curing resin and sealed.
- the method is preferably used. If the space is maintained by using a spacer, it is easy to prevent the element from being scratched. If an inert gas such as nitrogen or argon is sealed in the space, the cathode can be prevented from being oxidized. Further, a desiccant such as barium oxide is placed in the space to adsorb it in the manufacturing process. It is easy to suppress the moisture that is applied to the element. Of these, it is preferable to take one or more measures.
- the polymer LED of the present invention can be used as a backlight for a planar light source, a segment display device, a dot matrix display device, and a liquid crystal display device.
- the planar anode and cathode may be arranged so as to overlap each other.
- a segment type display element that can display numbers, letters, simple symbols, etc. can be obtained by forming a pattern with any of these methods and arranging several electrodes so that they can be independently turned on and off.
- both the anode and the cathode may be formed in stripes and arranged so as to be orthogonal. Partial color display and multi-color display are possible by coating different types of polymer phosphors with different emission colors or by using a color filter or a fluorescence conversion filter.
- the dot matrix element can also be driven passively. Or, active driving may be combined with TFT.
- planar light emitting element is thin and self-luminous, and can be suitably used as a planar light source for backlight of a liquid crystal display device or a planar illumination light source. If a flexible substrate is used, it can also be used as a curved light source or display device.
- polystyrene-based number average molecular weight was determined by gel permeation chromatography (GPC) using black mouth form as a solvent.
- GPC gel permeation chromatography
- Example 2 instead of C 8 H 17 MgBr, compounds 4 to 9 shown in Table 1 were synthesized by using the Grignard reagent or i reagent shown in Table 1 below.
- Example 8 Li reagent prepared by the method described in J. Am. Chem. So 2001 3, 946 was used instead of Grignard reagent.
- Compound 4 iH-NMR (300MHz / CDCl 3 ): 57.54 (d, IH :), 7.48 (d, 1H), 7.42 (dd, 1H), 7.21 (d, lH), 7.10-7.05 (m, 2H) 1.91 ⁇ ; L76 (m, 4H), 1.53 ⁇ : 1.38 (m, 2H), 1.30 ⁇ : 1.09
- reaction solution was filtered to remove insoluble matters.
- solvent was removed and dissolved in toluene, activated carbon was added, and the mixture was stirred and filtered.
- the filtrate was purified again with an alumina short ram, added with activated carbon, stirred and filtered.
- recrystallization was performed by adding 2.5 ml of hexane to obtain 0.28 g of compound 3-a shown below. (Yellowish white crystals)
- 2,72-Dibromo-9-fluorenone 8.72 g (p.963 ⁇ 4, 28.4 ol) was taken into a 1 L three-necked flask purged with argon, and 250 g of triclonal acetic acid and 6.7 ml of concentrated sulfuric acid were added. This solution was heated to 100, and 0.5 g of sodium azide was added 5 times every 1 hour (To ta 1 2.5 g, 36.9 minol), and the mixture was further incubated for 7 hours. This solution was poured into 500 ml of ice water, filtered, and washed with water to obtain 10.65 g of a crude product of Compound 10.
- reaction solution was cooled to 0 ° C., 50 ml of water was added, and the mixture was extracted with toluene 150 ml ⁇ 3 times.
- the organic phases were combined, washed with water and saturated brine, dried over sodium sulfate, and the solvent was evaporated to obtain 10.16 g of a crude product.
- this solution was cooled and then poured into a mixed solution of methanol 10 OmlZ ion-exchanged water 20 Oml and stirred for about 1 hour.
- the produced precipitate was recovered by filtration.
- the precipitate was dried under reduced pressure and then dissolved in toluene.
- the solution was filtered to remove insolubles, and the solution was washed with about 1N hydrochloric acid.
- This solution was allowed to stand and the toluene layer was recovered.
- This solution was washed with about 2.5% aqueous ammonia and rinsed.
- This solution was allowed to stand and the toluene layer was recovered.
- this solution was washed with ion exchange water, the toluene layer was recovered.
- this solution was poured into methanol and re-precipitated, and the generated precipitate was recovered. This precipitate was dried under reduced pressure to obtain 15 g of a polymer.
- This polymer had a polystyrene-equivalent number average molecular weight of 8.2 ⁇ 10 4 and a polystyrene-equivalent weight average molecular weight of 2.6 ⁇ 10 5 .
- Example 15
- this solution was cooled and then poured into a mixed solution of methanol 10 Oml Zion exchanged water 20 Oml and stirred for about 1 hour.
- the produced precipitate was recovered by filtration. This precipitate was dried under reduced pressure and then dissolved in toluene. The solution is filtered to remove insoluble materials, and then the solution is added to about 1 standard. Washed with regular hydrochloric acid. This solution was allowed to stand and the toluene layer was recovered. This solution was washed with about 2.5% aqueous ammonia. This solution was allowed to stand and the toluene layer was recovered. The solution was washed with ion exchange water, and then the toluene layer was recovered. Next, this solution was poured into methanol and re-precipitated, and the generated precipitate was recovered. This precipitate was dried under reduced pressure to obtain 0. lg of a polymer.
- this solution was cooled, poured into a mixed solution of methanol 100 ml 1 Z ion-exchanged water 200 ml, and stirred for about 1 hour.
- the produced precipitate was recovered by filtration. This precipitate was dried under reduced pressure and then dissolved in toluene. The solution was filtered to remove insoluble matters, and then passed through a column filled with alumina. Next, this solution was washed with about 1 N hydrochloric acid. This solution was allowed to stand and the toluene layer was recovered. This solution was washed with about 2.5% aqueous ammonia. This solution was allowed to stand and the toluene layer was recovered.
- polystyrene reduced number average molecular weight of this polymer 2. a 5 x 10 4, polystyrene equivalent weight average molecular weight is 4. was 1 X 10 4.
- Example 17 The polystyrene reduced number average molecular weight of this polymer, 2. a 5 x 10 4, polystyrene equivalent weight average molecular weight is 4. was 1 X 10 4.
- this solution was cooled, poured into a mixed solution of methanol 100 ml ion-exchanged water 200 ml, and stirred for about 1 hour.
- the produced precipitate was recovered by filtration. This precipitate was dried under reduced pressure and then dissolved in toluene. The solution was filtered to remove insoluble matters, and then passed through a column filled with alumina. Next, this solution was washed with about 1 N hydrochloric acid. This solution was allowed to stand and the toluene layer was recovered. This solution was washed with about 2.5% aqueous ammonia. This solution was allowed to stand and the toluene layer was recovered.
- the number average molecular weight in terms of polystyrene of this polymer was 2.3 ⁇ 10 5
- the weight average molecular weight in terms of polystyrene was 1.2 ⁇ 10 6 .
- Nickel (0) ⁇ N i (COD) 2 ⁇ (0.83 g) was added, and the mixture was stirred at room temperature for 10 minutes and then reacted at 60 ° C for 3 hours. The reaction was performed in a nitrogen gas atmosphere.
- this solution was cooled, poured into a mixed solution of methanol 100 ml 1 ion-exchanged water 200 ml, and stirred for about 1 hour.
- the produced precipitate was recovered by filtration. This precipitate was dried under reduced pressure and then dissolved in toluene. The solution was filtered to remove insoluble matters, and then passed through a column filled with alumina. Next, this solution was washed with about 1 N hydrochloric acid. This solution was allowed to stand and the toluene layer was recovered. This solution was washed with about 2.5% ammonia water. This solution was allowed to stand and the toluene layer was recovered.
- the number average molecular weight in terms of polystyrene of this polymer was 3.8 ⁇ 10 4
- the weight average molecular weight in terms of polystyrene was 4.2 ⁇ 10 5 .
- this solution was cooled, and then mixed with 25 ml of 25% aqueous ammonia 5 ml 1 Z methanol 35 ml 1 Zion exchanged water 35 ml, and stirred for about 1 hour.
- the produced precipitate was recovered by filtration. This precipitate was dried under reduced pressure and then dissolved in toluene. This solution was filtered to remove insoluble matters, and then this solution was passed through a column filled with alumina. Next, this solution was washed with about 1 N hydrochloric acid. This solution was allowed to stand and the toluene layer was recovered. About this solution
- This polymer had a polystyrene-equivalent number average molecular weight of 6.2 ⁇ 10 4 and a polystyrene-equivalent weight average molecular weight of 3.0 ⁇ 10 5 .
- this solution was cooled, poured into a mixed solution of methanol 100 ml 1 Z ion-exchanged water 200 ml, and stirred for about 1 hour.
- the produced precipitate was recovered by filtration. This precipitate was dried under reduced pressure and then dissolved in toluene. The solution was filtered to remove insoluble matters, and the solution was washed with about 1N hydrochloric acid. This solution was allowed to stand and the toluene layer was recovered. This toluene solution was washed with about 2.5% aqueous ammonia. This solution was allowed to stand and the toluene layer was recovered. After this solution was washed with ion exchange water, the toluene layer was recovered. Next, this solution was poured into methanol and re-precipitated to recover the generated precipitate. This precipitate was dried under reduced pressure to obtain 06 g of a polymer.
- the number average molecular weight in terms of polystyrene of this polymer was 2.4 ⁇ 10 4
- the weight average molecular weight in terms of polystyrene was 7.7 ⁇ 10 4 .
- this solution was cooled, poured into a mixed solution of methanol 10 Om 1 Zion exchanged water 20 Oml, and stirred for about 1 hour.
- the produced precipitate was recovered by filtration. After drying this precipitate under reduced pressure, Dissolved in mouth form. The solution was filtered to remove insolubles, and the solution was purified by passing through a column packed with alumina. Next, this solution was poured into methanol and re-precipitated, and the produced precipitate was recovered. This precipitate was dried under reduced pressure to obtain 0.34 g of a polymer.
- polystyrene reduced number average molecular weight of this polymer 2. a 7x l 0 4, polystyrene equivalent weight average molecular weight was 8. 9x l 0 4.
- reaction system After charging 30.56 g of the above compound, 18 0.3 g of the above compound and 4 005 g of promotoluene and 0.55 g of 2,2′-bipyridyl into the reaction vessel, the reaction system was charged with nitrogen gas. Replaced with. To this was added 50 g of tetrahydrofuran (THF) (dehydrated solvent) deaerated previously by publishing with argon gas. Next, to this mixed solution was added 1.0 g of bis (1,5-cyclooctagen) nickel (0) ⁇ N i (C OD) 2 ⁇ , stirred at room temperature for 10 minutes, and then at 60 ° C. For 3 hours. The reaction was performed in a nitrogen gas atmosphere.
- THF tetrahydrofuran
- this solution was cooled and poured into a mixed solution of methanol 100 ml 1 ion-exchanged water 200 ml and stirred for about 1 hour.
- the produced precipitate was recovered by filtration. This precipitate was dried under reduced pressure and then dissolved in toluene. The solution was filtered to remove insoluble matters, and the solution was purified by passing through a column packed with silica gel and alumina. This solution was poured into methanol and reprecipitated, and the generated precipitate was recovered. This precipitate was dried under reduced pressure to obtain 0.14 g of a polymer.
- polystyrene reduced number average molecular weight of this polymer 1 a 6 x 10 4
- polystyrene equivalent weight average molecular weight was 6. 3x 10 4.
- this solution was cooled, poured into a mixed solution of methanol 10 OmlZ ion-exchanged water 20 Oml, and stirred for about 1 hour.
- the produced precipitate was recovered by filtration. This precipitate was dried under reduced pressure and then dissolved in toluene.
- the solution was filtered to remove insoluble matters, and the solution was purified by passing through a column packed with silica gel and alumina. This solution was poured into methanol and reprecipitated, and the generated precipitate was collected. This precipitate was dried under reduced pressure to obtain 0.38 g of a polymer.
- the polystyrene equivalent number average molecular weight of each polymer was 4.4 ⁇ 10 4 , and the polystyrene equivalent weight average molecular weight was 2.6 ⁇ 10 5 .
- this solution was poured into a mixed solution of methanol 10 Oml non-ion exchanged water 20 Oml and stirred for about 1 hour.
- the produced precipitate was recovered by filtration.
- the precipitate was dried under reduced pressure and then dissolved in toluene.
- This solution was filtered to remove insoluble matters, and the solution was purified by passing through a column filled with alumina.
- this solution was poured into methanol and reprecipitated, and the generated precipitate was recovered. This precipitate was dried under reduced pressure to obtain 0.1 llg of a polymer.
- the above compound 60.74 g, the above compound 18 0.31 g, and 2,2′-bipyridyl 0.50 g were charged into a reaction vessel, and the inside of the reaction system was replaced with nitrogen gas. To this, 75 ml of tetrahydrofuran (THF) (dehydrated solvent) deaerated beforehand by bubbling with argon gas was added. Next, 0.91 g of bis (1,5-cyclooctagen) nickel (0) ⁇ N i (COD) 2 ) was added to this mixed solution, and the mixture was stirred at room temperature for 10 minutes. Reacted for hours. The reaction was performed in a nitrogen gas atmosphere.
- THF tetrahydrofuran
- this solution was cooled, poured into a mixed solution of methanol 100 ml 1 / ion-exchanged water 200 ml, and stirred for about 1 hour.
- the produced precipitate was recovered by filtration. This precipitate was dried under reduced pressure and then dissolved in toluene.
- the solution was filtered to remove insoluble matters, and then passed through a column filled with alumina.
- this solution was washed with about 1 N hydrochloric acid. This solution was allowed to stand and the toluene layer was recovered. This solution was washed with about 2.5% aqueous ammonia. This solution was allowed to stand and the toluene layer was recovered.
- this solution was cooled and then poured into a mixed solution of 25% aqueous ammonia 10m 1 Z methanol 120m 1 Z ion-exchanged water 50ml and stirred for about 1 hour.
- the produced precipitate was recovered by filtration. The precipitate was washed with ethanol and then dried under reduced pressure for 2 hours.
- this precipitate is dissolved in 3 OmL of toluene, 1N hydrochloric acid 3 OmL is added and stirred for 1 hour, the aqueous layer is removed, 4% aqueous ammonia 3 OmL is added to the organic layer, and the aqueous layer is stirred for 1 hour. Was removed.
- the organic layer was added dropwise to 15 OmL of methanol and stirred for 1 hour.
- the deposited precipitate was filtered, dried under reduced pressure for 2 hours, and dissolved in 3 OmL of toluene. Then, it refine
- the yield of the obtained polymer was 0.020.
- polystyrene reduced number average molecular weight of this polymer 4. a 3 x 10 4, polystyrene equivalent weight average molecular weight is 9. was 1 X 10 4.
- Example 27 The polystyrene reduced number average molecular weight of this polymer, 4. a 3 x 10 4, polystyrene equivalent weight average molecular weight is 9. was 1 X 10 4.
- Thin films were prepared by spin-coating 0.21;% chloroform solutions of the polymeric phosphors A to O synthesized above on quartz.
- the fluorescence spectrum of this thin film was measured using a fluorescence spectrophotometer 0.
- the fluorescence intensity was calculated using the fluorescence spectrum when excited at 35 Onm.
- the relative value of the fluorescence intensity was obtained by dividing the area of the fluorescence spectrum plotted with the wave number on the horizontal axis by the absorbance at 350 nm. The measurement results are shown below.
- a glass substrate with an ITO film with a thickness of 150 nm formed by the sputtering method is spin-coated with a solution of poly (ethylene dioxythiophene) Z polystyrene sulfonic acid (Bayer, Bay tr on P).
- a film with a thickness of 70 nm was formed and dried on a hot plate at 200 ° C for 10 minutes.
- a film was formed at a rotational speed of 2000 rpm by spin coating using a toluene solution prepared so that the polymer compound D was 1.8 wt%.
- a device was prepared in the same manner as in Example 43 except that polymer compound F was used instead of polymer compound D. Film formation was performed by spin coating with 1.8% toluene solution at 3500 rpm. By applying voltage to the resulting device, EL emission having a peak at 448 nm was obtained. The device showed an emission of 100 cd / m 2 at about 9.2. The maximum luminous efficiency was 0.14 cd / A.
- a device was prepared in the same manner as in Example 43 except that polymer compound G was used instead of polymer compound D. Film formation was performed by spin coating with a 1.7% toluene solution at 1000 rpm. By applying voltage to the resulting device, EL emission having a peak at 420 nm was obtained. The device emitted 100 cd / m 2 at about 7.1 V. The maximum luminous efficiency was 1. lc dZA.
- a device was prepared in the same manner as in Example 43 except that polymer compound H was used instead of polymer compound D. Film formation was performed by spin coating at 1000 rpm. By applying voltage to the resulting device, EL emission having a peak at 452 nm was obtained. The device emitted 100 cd / m 2 at about 4.9 V. The maximum luminous efficiency was 0.52 cd / A.
- Example 47
- a device was prepared in the same manner as in Example 43 except that polymer compound J was used instead of polymer compound D. Film formation was performed by spin coating at 800 rpm using a 1.5 wt% toluene solution. Applying voltage to the resulting device Further, EL emission having a peak at 484 nm was obtained. The device showed 100 cd / m 2 emission at about 4.5 V. The maximum luminous efficiency was 1.0 cd / A.
- a device was prepared in the same manner as in Example 43 except that polymer compound M was used instead of polymer compound D. Film formation was performed by spin coating at 3000 rpm using a 1.1% toluene solution. By applying voltage to the resulting device, EL emission having a peak at 496 nm was obtained. The device showed an emission of 100 cd / m 2 at about 4.8 V. The maximum luminous efficiency was 2.97 cd / A.
- the polymer compound B synthesized above was sandwiched between glass substrates coated with a polyimide alignment film and rubbed, and the substrate was shifted in the same direction as the rubbing direction to gain share.
- a polarizing microscope under crossed Nicols it was observed that the polymer compound B was aligned in one direction, and it was confirmed from the texture that it was a liquid crystal phase.
- DSC measurement of polymer compound B was performed, an exothermic peak was observed when cooled from room temperature, and a large endothermic peak was observed when the temperature was raised thereafter, indicating that this polymer exhibits a liquid crystal phase. confirmed.
- a thin film was formed by spin-coating a toluene solution containing 1.5% by weight of the polymer on a glass substrate coated with a polyimide alignment film and rubbed. When this was irradiated with ultraviolet rays, polarized fluorescence was observed, confirming that the polymer was a light-emitting material that could be a polarized light-emitting device.
- the polymer compound of the present invention is useful as a light emitting material, a charge transport material and the like.
- the polymer compound can be used as a material for a polymer light emitting device.
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Also Published As
Publication number | Publication date |
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EP2325225B1 (en) | 2016-06-15 |
TW200421923A (en) | 2004-10-16 |
EP3412696A1 (en) | 2018-12-12 |
TWI340606B (en) | 2011-04-11 |
EP2325225B2 (en) | 2019-12-11 |
EP2325223B1 (en) | 2014-05-14 |
EP2325223A1 (en) | 2011-05-25 |
EP2325226A1 (en) | 2011-05-25 |
KR101002822B1 (ko) | 2010-12-21 |
JP2009215557A (ja) | 2009-09-24 |
AU2003268752A1 (en) | 2004-05-25 |
EP1571170A4 (en) | 2007-08-08 |
US20080138651A1 (en) | 2008-06-12 |
US20120008068A1 (en) | 2012-01-12 |
EP1571170A1 (en) | 2005-09-07 |
EP2325224A1 (en) | 2011-05-25 |
EP2325225A1 (en) | 2011-05-25 |
KR20050084894A (ko) | 2005-08-29 |
US8012603B2 (en) | 2011-09-06 |
EP1571170B1 (en) | 2018-09-05 |
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