Bacteriostatic polysulfone material and preparation method and application thereof
A polysulfone and polymer solution technology, applied in the field of polysulfone materials, can solve the problems of affecting the service life of membrane flux, increasing operating energy consumption, and a single type of antibacterial, so as to avoid flux decline, prolong service life, and achieve excellent antibacterial properties. effect of effect
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Embodiment 1
[0054] (1) When installed with condensation, N 2 To a 1L four-necked flask for protection, stirring and temperature sensing, add 10 g of alcerol methyl ether in 500 mL of DMF, heat it up to 50°C, and add 55.8 mL of 10wt% K 2 CO 3 (The solvent is a mixture of DMF and water with a volume ratio of 1:1) was added dropwise to the reaction system within 2 hours, and the reaction was continued at 50 ° C for 6 hours. 氯仿 : V 环己烷 = 3:7 mixed solvent) to obtain the Alternaria methyl ether salt solution, which was placed in DMF, and thermally dissolved at 50 °C. The cooling rate is cooled to room temperature, and high-purity Alternaria methyl ether salt is obtained after crystallization, which is then ground and sieved with a 200-mesh sieve to obtain Alternaria monomethyl ether salt with a uniform crystal form.
[0055] (2) When installed with condensation, N 2 10g of polysulfone was added to 500mL of DMF at 45°C in a 1L four-necked flask for protection, stirring and temperature sensi...
Embodiment 2
[0057] (1) When installed with condensation, N 2 To a 1L four-necked flask for protection, stirring and temperature sensing, add 10 g of alternaria methyl ether in 500 mL of acetonitrile, heat up to 55°C, and add 64.0 mL of 7wt% Na 2 CO 3 (The solvent is a mixture of acetonitrile and water with a volume ratio of 1:1) dropwise into the reaction system within 2.5h, continue to react at 55°C for 5.5h, and pass through a chromatographic column (filler is alumina, and the separation mobile phase is V 氯仿 : V 环己烷 = 4:6 mixed solvent) to separate and obtain the Alternaria methyl ether salt solution, put the Alternaria phenol methyl ether salt solution in DMF, and thermally dissolve it at 60 °C. The cooling rate is cooled to room temperature, and high-purity Alternaria methyl ether salt is obtained after crystallization, which is then ground and sieved with a 200-mesh sieve to obtain Alternaria monomethyl ether salt with a uniform crystal form.
[0058] (2) When installed with conde...
Embodiment 3
[0060] (1) When installed with condensation, N 2 To a 1L four-necked flask for protection, stirring and temperature sensing, add 10 g of Alternaria methyl ether in 500 mL of acetone, heat up to 60°C, and add 121.8 mL of 5wt% K 2 CO 3 (The solvent is a mixture of acetone and water with a volume ratio of 1:1) dropwise into the reaction system within 3 hours, continue to react at 60 ° C for 5 hours, and pass through a chromatographic column (filler is alumina, separation mobile phase is V 氯仿 : V 环己烷 = 3:7 mixed solvent) to obtain the Alternaria methyl ether salt solution, put the Alternaria phenol methyl ether salt solution in DMF, and thermally dissolve it at 55 °C. The cooling rate is cooled to room temperature, and high-purity Alternaria methyl ether salt is obtained after crystallization, which is then ground and sieved with a 200-mesh sieve to obtain Alternaria monomethyl ether salt with a uniform crystal form.
[0061] (2) When installed with condensation, N 2 Add 10 g ...
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