Bipolar polymer blue light host material, preparation method and applications thereof
A blue-light main material and polymer technology, which is applied in the direction of luminescent materials, chemical instruments and methods, semiconductor/solid-state device manufacturing, etc., can solve the problems of low luminous efficiency, achieve low raw material prices, reduce manufacturing costs, and excellent film-forming performance Effect
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Embodiment 1
[0027] Example 1: The bipolar polymer blue light host material of this example, that is, poly{3,8-diyl-4,7-diphenyl-1,10-phenanthroline-co-2,7-di Base-3,6-bis(diphenylphosphineoxy)-9-n-hexyl-9H-carbazole} (P1) (where R is n-hexyl, n=47), its structural formula is as follows:
[0028]
[0029] The preparation steps of above-mentioned polymer are as follows:
[0030] The reaction formula is as follows:
[0031]
[0032] Under the protection of argon, 3,8-dibromo-4,7-diphenyl-1,10-phenanthroline (99 mg, 0.2 mmol), 2,7-dibromo-3,6-bis(di Phenylphosphineoxy)-9-n-hexyl-9H-carbazole (162mg, 0.2mmol) was added into a flask containing 10ml of toluene solvent, and after fully dissolving, potassium carbonate (2mL, 2mol / L) solution was added into the flask, Vacuumize to remove oxygen and fill with argon, then add bistriphenylphosphinepalladium dichloride (5.6mg, 0.008mmol); heat the flask to 100°C for Suzuki coupling reaction for 48h. Subsequently, the polymerization reaction was...
Embodiment 2
[0035] Example 2: The bipolar polymer blue light host material of this example, that is, poly{3,8-diyl-4,7-diphenyl-1,10-phenanthroline-co-2,7-di -3,6-di(diphenylphosphineoxy)-9-n-eicosyl-9H-carbazole} (P2) (where R is n-eicosyl, n=100), its structural formula is as follows :
[0036]
[0037] The preparation steps of above-mentioned polymer are as follows:
[0038] The reaction formula is as follows:
[0039]
[0040] Under the protection of mixed gas of nitrogen and argon, 3,8-dibromo-4,7-diphenyl-1,10-phenanthroline (147mg, 0.3mmol), 2,7-dibromo-3,6- Add bis(diphenylphosphineoxy)-9-n-eicosyl-9H-carbazole (302mg, 0.3mmol) and 15mL tetrahydrofuran into a 50mL two-necked bottle, and after fully dissolving, inject a mixture of nitrogen and argon After exhausting the air for about 20 minutes, tetrakistriphenylphosphine palladium (4mg, 0.003mmol) was added into it, and after fully dissolved, sodium bicarbonate (3mL, 2mol / L) solution was added. Then, the mixed gas of nit...
Embodiment 3
[0042] Example 3: The bipolar polymer blue light host material of this example, that is, poly{3,8-diyl-4,7-diphenyl-1,10-phenanthroline-co-2,7-di Base-3,6-bis(diphenylphosphineoxy)-9-methyl-9H-carbazole}(P3) (where R is methyl, n=79), its structural formula is as follows:
[0043]
[0044] The preparation steps of above-mentioned polymer are as follows:
[0045] The reaction formula is as follows:
[0046]
[0047] Under nitrogen protection, 3,8-dibromo-4,7-diphenyl-1,10-phenanthroline (147mg, 0.3mmol), 2,7-dibromo-3,6-bis(diphenyl Phosphinoxy)-9-methyl-9H-carbazole (244mg, 0.33mmol), palladium acetate (3.5mg, 0.015mmol) and tri(o-methylphenyl)phosphine (21mg, 0.06mmol) were added to a 12mL In the flask of N,N-dimethylformamide, add potassium carbonate (3mL, 2mol / L) solution after fully dissolving, then pass nitrogen into the flask and exhaust the air for about 30min; heat the flask to 130°C for Suzuki coupling Reaction 12h. Subsequently, stop the polymerization reacti...
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