Fluorescent polymer compound, preparation method and light-emitting device based on polynorbornene main chain and space charge transfer luminescence
A polymer compound, polynorbornene technology, applied in the direction of electrical solid devices, chemical instruments and methods, luminescent materials, etc., can solve the problems that are not conducive to blue light emission, difficult to take care of, and difficult to accurately control the distribution of electron clouds
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[0114] The present invention also provides a method for preparing a fluorescent polymer compound based on polynorbornene main chain and space charge transfer luminescence as described above, comprising the following steps:
[0115] Under protective gas atmosphere, after the monomer of structure shown in formula (X), catalyst and organic solvent are mixed, carry out reaction, obtain the polymer compound shown in formula (I);
[0116] Or under protective gas atmosphere, after the monomer of structure shown in formula (X), the monomer of structure shown in formula (Y), catalyst and organic solvent are mixed, carry out reaction, obtain the polymer shown in formula (II) compound;
[0117]
[0118] The present invention has no special restrictions on the source of the monomers with the structure shown in (X) and the monomers with the structure shown in the formula (Y). They can be prepared by conventional preparation methods well known to those skilled in the art or purchased fro...
Embodiment 1
[0147] Synthesis of monomers:
[0148]
[0149] Under argon atmosphere, 1 (5.5 g, 15 mmol), 2 (8.49 g, 19.5 mmol), potassium carbonate (5.4 g, 39 mmol), 2,5-norbornadiene (6.1 mL, 60 mmol), THF ( 80mL) and H 2 O (40mL) was added in a 250ml two-necked flask, and after the temperature was raised to 60°C, a THF solution (6mL) of triphenylphosphine (0.39g, 1.5mmol) and palladium acetate (0.13g, 0.6mmol) was added to the reaction system, The reaction was stirred at 60°C for 24h in the dark. After cooling to room temperature, the reaction solution was diluted with diethyl ether and washed with saturated brine. The organic phase was separated and dried over anhydrous sodium sulfate, concentrated, and separated on a silica gel column to obtain 3.5 g of a white solid with a yield of 35%.
[0150] C 46 h 34 N 4 Elemental analysis (%): C, 85.82; H, 5.60; N, 8.53.
[0151] According to mass spectrometry (MALDI-TOF), its molecular weight is 643.3.
[0152] Proton NMR spectrum ana...
Embodiment 2
[0158] Synthesis of monomers:
[0159]
[0160] Under argon atmosphere, 3 (10.3 g, 25 mmol), 2 (14.2 g, 32.5 mmol), potassium carbonate (9.0 g, 65 mmol), 2,5-norbornadiene (10.2 mL, 100 mmol), THF ( 100mL) and H 2 O (50mL) was added in the 250ml two-necked flask, after the temperature was raised to 60°C, the THF solution (10mL) of triphenylphosphine (0.66g, 2.5mmol) and palladium acetate (0.22g, 1.0mmol) was added in the reaction system, The reaction was stirred at 60°C for 24h in the dark. After cooling to room temperature, the reaction solution was diluted with diethyl ether and washed with saturated brine. The organic phase was separated, dried over anhydrous sodium sulfate, concentrated, and separated on a silica gel column to obtain 6.9 g of a white solid with a yield of 40%.
[0161] C 49 h 40 N 4 Elemental analysis (%): C, 85.72; H, 5.99; N, 8.11.
[0162] According to mass spectrometry (MALDI-TOF), its molecular weight is 685.3.
[0163] Proton NMR spectrum a...
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