Composition and block type copolymer

Patent metadata

Field	Value
Publication number	US-9620717-B2
Application number	US-201113995813-A
Country	US
Kind code	B2
Filing date	Dec 21, 2011
Priority date	Dec 21, 2010
Publication date	Apr 11, 2017
Grant date	Apr 11, 2017

Abstract

A composition comprising:
a light emitting material; and a polymer compound having a constitutional sequence represented by the following formula (1) as a main chain:

-[—(Y) n —Z—] m -  (1)
in the formula, Y represents a divalent group, in which two hydrogen atoms are removed from a structure represented by the following formula (Y-1) or (Y-2), Z represents a divalent group, in which two hydrogen atoms are removed from a structure represented by the following formula (Z-1), (Z-2), (Z-3), (Z-4), (Z-5), (Z-6), (Z-7), or (Z-8), m represents an integer of 4 to 10,000, and n represents an integer of 1 to 3.

First claim

The invention claimed is:

1. A composition comprising:
a light emitting material; and
a polymer compound having a constitutional sequence represented by the following formula (1) as a main chain:
-[—(Y) n —Z—] m -  (1)

in the formula,
Y represents a divalent group, in which two hydrogen atoms are removed from a structure represented by the following formula (Y-1) or (Y-2),
Z represents a divalent group, in which two hydrogen atoms are removed from a structure represented by the following formula (Z-1), (Z-2), (Z-3), (Z-4), (Z-5), (Z-6), (Z-7), or (Z-8),
m represents an integer of 4 to 10,000, and n represents an integer of 1 to 3,
plural Y's, Z's, and n's each may be the same as or different from each other,
a hydrogen atom included in Y and Z may be substituted by R′, and R′ each independently represents a functional group selected from a group consisting of a carboxyl group, a nitro group, a cyano group, an alkyl group, an alkoxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an alkenyl group, an alkynyl group, an amino group, a silyl group, an acyl group, an acyloxy group, an imine residue, an amide compound residue, an acid imide residue, a monovalent heterocyclic group, and a monovalent heterocyclic thio group, or a halogen atom, when there are plural R′'s, they may be the same as or different from each other, and plural R′'s may be bonded to each other to form a ring structure, and the hydrogen atom included in the functional group may be further substituted by a substituent,

in the formulas,
X represents —CH═ or —N═, and plural X's may be the same as or different from each other, with the proviso that the number of —N═ as X is 0 to 2,
R x represents a functional group selected from a group consisting of a carboxyl group, a nitro group, a cyano group, an alkyl group, an alkoxy group, an alkylthio group, an aryl group, an aryloxy group, an arylthio group, an alkenyl group, an alkynyl group, an amino group, a silyl group, an acyl group, an acyloxy group, an imine residue, an amide compound residue, an acid imide residue, a monovalent heterocyclic group, and a monovalent heterocyclic thio group, or a hydrogen atom or a halogen atom, plural R x 's may be the same as or different from each other, and plural R x 's may be bonded to each other to form a ring structure, and the hydrogen atom included in the functional group may be further substituted by a substituent, wherein
the composition includes the light emitting material in an amount of 4 to 20 parts by mass relative to 1 part by mass of the polymer compound.

2. The composition according to claim 1 , wherein the light emitting material is a polymeric light emitting material.

3. The composition according to claim 2 , wherein the light emitting material is the polymeric light emitting material including at least one of constitutional units represented by the following formula (A), (B), or (C):

in the formulas,
Ar 1 and Ar 5 each independently represent an arylene group, a divalent heterocyclic group, or a divalent group having a metal complex structure, Ar 2 , Ar 3 , and Ar 4 each independently represent an arylene group or a divalent heterocyclic group,
R 1 and R 2 each independently represent a hydrogen atom, an alkyl group, an aryl group, or a monovalent heterocyclic group, X 1 represents —CR 3 ═CR 4 — or —C≡C—, R 3 and R 4 each independently represent a hydrogen atom, a carboxyl group, a substituted carboxyl group, a cyano group, an alkyl group, an aryl group, or a monovalent heterocyclic group, and a is 0 or 1.

4. The composition according to claim 3 , wherein the light emitting material includes the constitutional unit represented by the formula (B).

5. The composition according to claim 1 , wherein the Y is a divalent group represented by the following formula (Y-3), (Y-4), (Y-5), or (Y-6):

in the formulas,
R″ represents a hydrogen atom, an alkyl group, an aryl group, or a monovalent heterocyclic group, and plural R″'s may be the same as or different from each other.

6. The composition according to claim 1 , wherein the Z is a divalent group represented by the following formula (Z-9), (Z-10), (Z-11), (Z-12), (Z-13), (Z-14), (Z-15), (Z-16), (Z-17), (Z-18), (Z-19), or (Z-20):

in the formulas,
R″ represents a hydrogen atom, an alkyl group, an aryl group, or a monovalent heterocyclic group, plural R″'s may be the same as or different from each other, and R x has the same meaning as defined above.

7. The composition according to claim 6 , wherein the Z is a divalent group represented by the formula (Z-11), (Z-15), or (Z-17).

8. The composition according to claim 1 ,
wherein the polymer compound is synthesized by condensation polymerization,
in the polymer compound, the group represented by Y and the group represented by Z are introduced by condensation polymerization,
an arbitrary additional group which is different from the group represented by Y and the group represented by Z may be introduced by condensation polymerization, and
when mole numbers of Y, Z, and the arbitrary additional group in the polymer compound are N Y , N Z and N M , respectively, N Y , N Z and N M satisfy the following equation (2):
30≦N Y ×100/(N Y +N Z +N M )≦75  (2).

9. The composition according to claim 1 ,
wherein each of the polymer compound and the light emitting material is synthesized by condensation polymerization,
in the polymer compound, the group represented by Y and the group represented by Z are introduced by condensation polymerization,
an arbitrary additional group which is different from the group represented by Y and the group represented by Z may be introduced by condensation polymerization, and
when mole numbers of Y, Z, and the arbitrary additional group in the polymer compound are N Y , N Z and N M , respectively, and a mole number of chemical structures in the light emitting material constituting the light emitting material, which is introduced by the condensation polymerization, is N L , N Y , N Z , N M , and N L satisfy the following equation (3):
0.5≦N Y ×100/(N Y +N Z +N M +N L )≦37.5  (3).

10. The composition according to claim 1 , wherein the main chain of the polymer compound is composed only of the constitutional sequence represented by the formula (1).

11. An organic electroluminescence device comprising: a pair of electrodes; and an organic layer provided between the pair of the electrodes, the organic layer being obtained by using the composition according to claim 1 .

12. A surface light source device having the organic electroluminescence device according to claim 11 .

13. A display device having the organic electroluminescence device according to claim 11 .

14. A block type copolymer comprising:
a block consisting of a constitutional sequence represented by the following formula (1) as a main chain; and
a block consisting of a chemical structure constituting a light emitting material as a main chain:
-[—(Y) n —

Assignees

• Anryu Makoto
• Fukushima Daisuke
• Sumitomo Chemical Co

Inventors

• Anryu Makoto
• Fukushima Daisuke

Classifications

• C08G2261/3162

  Arylamines · CPC title

• C08G2261/95

  Use in organic luminescent diodes · CPC title

• C08G61/122

  derived from five- or six-membered heterocyclic compounds, other than imides · CPC title

• C08G2261/314

  Condensed aromatic systems, e.g. perylene, anthracene or pyrene · CPC title

• C08G2261/312

  Non-condensed aromatic systems, e.g. benzene · CPC title