Stripping, functional modification of dichalcogen compounds and preparation method of intelligent composite gel
A compound and dichalcogen technology, applied in the direction of binary selenium/telluride compounds, metal selenide/telluride, tungsten compounds, etc., can solve the problem of preparing transition metal dichalcogen compound composite materials, functional modification reports are very few, There are no problems such as functionality, and the effect of simple preparation conditions, broad industrial application prospects, and convenient operation process is achieved.
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Embodiment 1
[0022] Dissolve 0.84 g of N-isopropylacrylamide monomer and 0.36 g of vinylimidazole monomer in 50 mL of deionized water, then add 0.2 g of n-bromobutane and 0.054 g of azobisisobutylamidine hydrochloride, Heat and stir at 70°C for 4 hours to obtain a copolymer of polyvinylimidazole ionic liquid and N-isopropylacrylamide, and the polymer after dialysis is made into an aqueous solution with a concentration of about 2 wt%, which is used for ultrasonic stripping of molybdenum diselenide powder8 hours, to obtain an aqueous solution of polymer-modified molybdenum diselenide nanosheets, after centrifugation, the supernatant was taken, and 0.2 g of dibromobutane was added and heated at 70°C for 6 hours to obtain a composite gel.
[0023] From figure 1 The NMR spectrum shows that the copolymer of polyvinylimidazole ionic liquid and N-isopropylacrylamide has been successfully prepared.
[0024] From figure 2 It can be seen in the figure that the lattice spacing of the exfoliated mol...
Embodiment 2
[0030]Dissolve 0.84 g of N-isopropylacrylamide monomer and 0.72 g of vinylimidazole monomer in 50 mL of deionized water, then add 0.4 g of n-bromobutane and 0.054 g of azobisisobutylamidine hydrochloride, Heat and stir at 70°C for 4 hours to obtain a copolymer of polyvinylimidazole ionic liquid and N-isopropylacrylamide, and the polymer after dialysis is made into an aqueous solution with a concentration of about 2 wt%, which is used for ultrasonic stripping of molybdenum diselenide powder8 hours, to obtain an aqueous solution of polymer-modified molybdenum diselenide nanosheets, after centrifugation, the supernatant was taken, and 0.2 g of dibromobutane was added and heated at 70°C for 6 hours to obtain a composite gel.
Embodiment 3
[0032] Dissolve 0.84 g of N-isopropylacrylamide monomer and 1.44 g of vinylimidazole monomer in 50 mL of deionized water, then add 0.8 g of n-bromobutane and 0.054 g of azobisisobutylamidine hydrochloride, Heat and stir at 70°C for 4 hours to obtain a copolymer of polyvinylimidazole ionic liquid and N-isopropylacrylamide, and the polymer after dialysis is made into an aqueous solution with a concentration of about 1 wt%, which is used for ultrasonic stripping of molybdenum diselenide powder5 hours, to obtain an aqueous solution of polymer-modified molybdenum diselenide nanosheets, after centrifugation, the supernatant was taken, and 0.2 g of dibromobutane was added and heated at 60° C. for 7 hours to obtain a composite gel.
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