Side chain polyarylethersulfone containing carbazole, preparation method and application
A technology of polyarylethersulfone and polyether ethersulfone, which is applied in the field of new electro-storage materials, can solve problems such as device storage instability, insufficient switching current ratio, and insufficient chemical stability, and achieve storage performance optimization and improvement. The effect of stability
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Embodiment 1
[0042] The synthetic method of Cz-PES1 provided by the present invention can be realized through the following reaction steps:
[0043] (1) 4-methoxyphenylhydroquinone (2.1623g, 0.0100mol), 4,4'-dichlorodiphenyl sulfone (2.8716g, 0.0100mol), potassium carbonate (1.4501g, 0.0105mol) , Sulfolane (15mL), and toluene (5mL) were added to a 50mL three-necked flask equipped with a stirrer, an oil-water separator, and a condenser, and reacted at 140°C for 3h and 210°C for 6h under nitrogen protection. The material was discharged into distilled water, filtered, crushed, washed several times with distilled water and ethanol, and dried to obtain the intermediate product methoxyphenyl side group polyether ether sulfone (MPPES), 4.75g. Add 3.00g of the intermediate product MPPES, 100g of newly prepared pyridine hydrochloride (slowly drop 80ml of concentrated hydrochloric acid into 70ml of pyridine, after the addition is complete, evaporate the water in the system, and obtain snow white pyr...
Embodiment 2
[0047] The synthetic method of Cz-PES2 provided by the present invention can be realized through the following reaction steps:
[0048] (1) Dissolve Cz-10.8g (2.6mmol) in 10mL of 1,2-dichloroethane, cool down to 10°C, keep the temperature, and add 0.3mL of concentrated nitric acid (mass fraction 65- 68%), after the dropwise addition, continue to keep the reaction at 10°C for 1h, separate the liquid, remove the organic solvent, and use column chromatography to purify (200-300 mesh silica gel as a stationary phase, a mixed solvent of chloroform and petroleum ether in a volume ratio of 2:1 As the mobile phase) to obtain light yellow solid Cz-20.81g.
[0049] (2) Dissolve 0.2g of HPPES in 6mL of anhydrous DMF, add 0.72mmol of Cz-2 and 0.25g of K 2 CO 3 , Reacted at 100°C for 36h under the protection of nitrogen. Discharge in distilled water, filter, wash, and vacuum dry to obtain Cz-PES2.
Embodiment 3
[0051] The synthetic method of Cz-PES3 provided by the invention can be realized through the following reaction steps:
[0052] (1) Dissolve Cz-10.8g (2.6mmol) in 10mL of 1,2-dichloroethane, cool down to 10°C, keep the temperature, add 2mL of fuming nitric acid (mass fraction 95- 98%) mixed with 2mL of 1,2-dichloroethane. After the dropwise addition, continue to keep the reaction at 10°C for 1h, then raise the temperature to 45°C for 4h. After filtration, the solid was dried and purified by column chromatography (200-300 mesh silica gel as the stationary phase, and a mixed solvent of chloroform and petroleum ether at a volume ratio of 3:1 as the mobile phase) to obtain a yellow solid Cz-30.66g.
[0053] (2) Dissolve 0.2g of HPPES in 6mL of anhydrous DMF, add 0.72mmol of Cz-3 and 0.25g of K 2 CO 3 , Reacted at 100°C for 36h under the protection of nitrogen. Discharge in distilled water, filter, wash, and vacuum dry to obtain Cz-PES3.
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