Preparation method of stripping, functional modification and intelligent composite gel of disulfide
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 0.84g N-isopropylacrylamide monomer and 0.36g vinylimidazole monomer in 50mL deionized water, then add 0.2g n-bromobutane and 0.054g azobisisobutylamidine hydrochloride, at 70 Heat and stir at ℃ 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 powder for 8 hours to obtain The aqueous solution of the polymer-modified molybdenum diselenide nano-sheets was centrifuged, and 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 that the lattice spacing of the molybdenum diselenide nanosheets ob...
Embodiment 2
[0030]Dissolve 0.84g N-isopropylacrylamide monomer and 0.72g vinylimidazole monomer in 50mL deionized water, then add 0.4g n-bromobutane and 0.054g azobisisobutylamidine hydrochloride, at 70 Heat and stir at ℃ 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 powder for 8 hours to obtain The aqueous solution of the polymer-modified molybdenum diselenide nano-sheets was centrifuged, and 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 0.84g N-isopropylacrylamide monomer and 1.44g vinylimidazole monomer in 50mL deionized water, then add 0.8g n-bromobutane and 0.054g azobisisobutylamidine hydrochloride, at 70 Heated and stirred at ℃ for 4 hours to obtain a copolymer of polyvinylimidazole ionic liquid and N-isopropylacrylamide, and the polymer after dialysis was prepared into an aqueous solution with a concentration of about 1 wt%, which was used for ultrasonic stripping of molybdenum diselenide powder for 5 hours to obtain The aqueous solution of the polymer-modified molybdenum diselenide nano-sheets was centrifuged, and 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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