Organic electronics material and organic electronics element
One embodiment relates to an organic electronic material containing a charge transport polymer, wherein the charge transport polymer is a polymer which, when 25 μL portions of methanol are added dropwise and stirred into 1,000 μL of a solution containing the charge transport polymer and toluene in a ratio of 20 mg of the charge transport polymer per 2,290 μL of toluene, the amount of methanol added by the time cloudiness develops in the solution is greater than 350 μL.
1. An organic electronic material comprising a charge transport polymer, wherein
the charge transport polymer has, at a terminal, an aromatic ring having two polymerizable functional groups and includes an aromatic ring represented by a formula shown below:
wherein each n independently represents an integer of 1 to 6.
2. The organic electronic material according to claim 1 , wherein the charge transport polymer is a hole transport polymer.
3. The organic electronic material according to claim 1 , wherein the charge transport polymer has a structure that is branched in three or more directions.
4. The organic electronic material according to claim 1 , wherein the charge transport polymer has a structural unit having charge transport properties, and the structural unit having charge transport properties includes at least one type of structural unit selected from the group consisting of a divalent structural unit L represented by the following formula in which L is a structural unit that has charge transport properties:
*-L-*
and a trivalent or higher structural unit B represented by any one of the following formulae in which B is a structural unit that has charge transport properties:
5. The organic electronic material according to claim 4 , wherein the structural unit having charge transport properties has at least one type of structure selected from the group consisting of an aromatic amine structure, a carbazole structure, a thiophene structure, a bithiophene structure, a benzene structure, a phenoxazine structure and a fluorene structure.
6. The organic electronic material according to claim 1 , further comprising a polymerization initiator.
7. The organic electronic material according to claim 6 , wherein the polymerization initiator comprises an onium salt.
8. The organic electronic material according to claim 1 , wherein the charge transport polymer is a branched charge transport polymer.
9. The organic electronic material according to claim 1 , wherein n is 1.
10. The organic electronic material according to claim 4 , wherein trivalent or higher structural unit B includes an aromatic amine structure.
11. An ink composition comprising the organic electronic material according to claim 1 , and a solvent.
12. An organic layer formed from the organic electronic material according to claim 1 .
13. An organic electronic element comprising the organic layer according to claim 12 .
14. An organic electroluminescent element comprising the organic layer according to claim 12 .
15. A display element comprising the organic electroluminescent element according to claim 14 .
16. An illumination device comprising the organic electroluminescent element according to claim 14 .
17. A display device comprising the illumination device according to claim 16 , and a liquid crystal element as a display unit.
18. An organic layer formed from the ink composition according claim 11 .