ORGANIC ELECTROLUMINESCENT ELEMENT MATERIAL, ORGANIC ELECTROLUMINESCENT ELEMENT, METHOD OF MANUFACTURING ORGANIC ELECTROLUMINESCENT ELEMENT, DISPLAY DEVICE, AND ILLUMINATING DEVICE
In the present invention, provided is an organic electroluminescent element material having a high externally taking-out quantum efficiency, which is suitable for manufacturing an element exhibiting long light emission lifetime, and also provided is an organic electroluminescent element possessing the material, a method of manufacturing the organic electroluminescent element, and a display as well as an illuminating device fitted with the organic electroluminescent element.
1 . A method of manufacturing a polymer contained in an organic electroluminescent element material, comprising the steps of:
synthesizing the polymer from at least one monomer having an impurity content of 1000 ppm or less; and
recovering the polymer.
2 . The method of claim 1 ,
wherein the at least one monomer comprises a reactive substituent.
3 . The method of claim 2 ,
wherein the reactive substituent comprises any of the following partial structures:
4 . The method of claim 1 ,
wherein the polymer comprises a partial structure represented by the following Formula (1):
—Ar1-N(Ar3)-Ar2- Formula (1)
wherein each of Ar1 and Ar2 independently represents an arylene group or a heteroarylene group, and Ar3 represents an aromatic hydrocarbon group or an aromatic heterocyclic group.