Photoresponse oil-water separation filter paper and preparation method thereof
A light-responsive, oil-water separation technology, applied in separation methods, liquid separation, chemical instruments and methods, etc., can solve the problem that polymers do not have environmental responsiveness, and achieve the effect of easy control of experimental conditions and improved adhesion.
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[0023] Example 1
[0024] (1) Preparation of glycidyl methacrylate-6-[4-(4-ethoxyphenylazo)phenoloxy]hexyl acrylate copolymer
[0025] According to the molar ratio, combine glycidyl methacrylate, 6-[4-(4-ethoxyphenylazo)phenoloxy]hexyl acrylate, and initiator azobisisobutyronitrile (AIBN) to 10 Mix and dissolve in a certain volume of anisole at a molar ratio of 90:1, and perform liquid nitrogen freezing-evacuating-nitrogen filling treatment on the reaction vessel, and the cycle is three times. Under the protection of nitrogen, the reaction vessel was placed in a constant temperature oil bath at 65°C, and reacted for 10 hours under electromagnetic stirring. After the system is cooled, add appropriate amount of tetrahydrofuran to dilute the product and precipitate in petroleum ether. After re-dissolving and precipitation, vacuum drying at room temperature for 24 h, glycidyl methacrylate-6-[4-(4-ethoxyphenylazo)phenoloxy]hexyl acrylate copolymer was obtained.
[0026] (2) In terms of...
Example Embodiment
[0029] Example 2
[0030] (1) Preparation of glycidyl methacrylate-6-[4-(4-ethoxyphenylazo)phenoloxy]hexyl acrylate copolymer
[0031] The preparation method is the same as in Example 1.
[0032] (2) In terms of weight ratio, combine 1.5g nano-silica particles (with a particle size of 20-60 nanometers), 1.0g glycidyl methacrylate-6-[4-(4-ethoxyphenylazo )Phenoxy]hexyl acrylate copolymer, 0.2g ethylenediamine, 50mL tetrahydrofuran mixed, ultrasonic for 30min until uniform dispersion;
[0033] (3) Completely immerse the medium-speed qualitative filter paper (average pore diameter 30-50 microns) in the mixed solution, ultrasonically disperse for 30 seconds, and then take it out and dry it naturally for 24 hours.
[0034] (4) The oil-water separation experiment is the same as in Example 1.
Example Embodiment
[0035] Example 3
[0036] (1) Preparation of glycidyl methacrylate-6-[4-(4-ethoxyphenylazo)phenoloxy]hexyl acrylate copolymer
[0037] The preparation method is the same as in Example 1.
[0038] (2) In terms of weight ratio, mix 2g of nano-silica particles (with a particle size of 50-100 nanometers) and 1.0g of glycidyl methacrylate-6-[4-(4-ethoxyphenylazo) Mix phenoloxy]hexyl acrylate copolymer, 0.2g ethylenediamine, 50mL tetrahydrofuran, and ultrasonic for 30min until uniformly dispersed;
[0039] (3) Completely immerse the medium-speed qualitative filter paper (average pore diameter 30-50 microns) in the mixed solution, ultrasonically disperse for 30 seconds, and then take it out and dry it naturally for 24 hours.
[0040] (4) The oil-water separation experiment is the same as in Example 1.
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