Patent ID: 7705114

Claim:
A method for producing a polymer organic electronic material comprising: synthesizing a polymer organic electronic material by condensing a precursor monomer for the polymer organic electronic material in the presence of a metal catalyst; preparing a polymer organic electronic material solution by dissolving the polymer organic electronic material in an organic solvent; and removing metal ions, which originate from the metal catalyst, from the polymer organic electronic material solution by using an ion exchange resin, the ion exchange resin is one of a cation exchange resin or a mixture of a cation exchange resin and an anion exchange resin, and a mass ratio of the polymer organic electronic material to the ion exchange resin in the polymer organic electronic material solution is from 1:0.001 to 1:100, when metal ions are removed, wherein the polymer organic electronic material is one of a polyester or polyamide that is a hole transporting material or light emitting material, and the polyester or polyamide includes one of a tetraphenylenediamine derivative, a triphenylamine derivative, a carbazole derivative, a stilbene derivative, an arylhydrazone derivative, a porphyrin-based compound, a chelate-type organometallic complex, a multinuclear or condensed aromatic derivative, a perylene derivative, a coumarin derivative, a styrylarylene derivative, a silole derivative, an oxazole derivative, oxathiazole derivatives or an oxadiazole derivative in the molecule.