A kind of organic/inorganic functional polymer film based on two-dimensional material and its preparation method and application in gas sensor
A technology of functional polymers and two-dimensional materials, which can be used in the analysis of materials, the analysis of fluids using sonic/ultrasonic/infrasonic waves, and the analysis of materials using sonic/ultrasonic/infrasonic waves. It can solve problems such as energy consumption and reduce the consumption of chemical reagents. , good stability, the effect of reducing environmental pollution
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Embodiment 1
[0040] Dissolve 1g of N-isopropylacrylamide, 20mg of cross-linking agent N,N'-methylenebisacrylamide, and 60mg of sodium dodecylsulfonate in deionized water for pre-dissolution, and then blow nitrogen to remove oxygen for 30 minutes. The temperature was raised to 70°C. After adding 5ml of potassium persulfate (5mg / ml), carry out free radical polymerization and crosslinking reaction at a constant temperature of 70°C for 6 hours; after the reaction, use a dialysis bag for dialysis for 3-5 days to remove unreacted monomers and other small molecules. An organic microgel with a three-dimensional crosslinked network structure was obtained.
[0041] Get the microgel suspension obtained above and the two-dimensional material GO solution (0.5mg / ml) of equal volume, carry out alternate self-assembly on the quartz wafer, what use is spin coater, microgel and graphene oxide ( GO) with a quality of 80:3. At room temperature, the microgel suspension was first spin-coated at low speed (400...
Embodiment 2
[0057] Dissolve 1g of methacrylamide, 30mg of cross-linking agent N,N'-methylenebisacrylamide, and 60mg of sodium dodecylsulfonate in deionized water for pre-dissolution, then blow nitrogen to remove oxygen for 30 minutes, and heat up to 65 ℃. After adding 5ml of potassium persulfate (8mg / ml), carry out free radical polymerization and crosslinking reaction at a constant temperature of 65°C for 7 hours; after the reaction, use a dialysis bag for dialysis for 3-5 days to remove unreacted monomers and other small molecules. An organic microgel with a three-dimensional crosslinked network structure was obtained.
[0058] Get the microgel suspension obtained above and an equal volume of two-dimensional material GO solution (0.6mg / ml) to carry out layer-by-layer self-assembly on a quartz wafer. The quality of microgel and graphene oxide (GO) is 80: 3. A spin coater is used. At room temperature, the microgel suspension was spin-coated at a low speed (400rmp) for 10 seconds, and the...
Embodiment 3
[0064] Dissolve 1g of acrylamide, 40mg of cross-linking agent N,N'-methylenebisacrylamide, and 60mg of sodium dodecylsulfonate in deionized water for pre-dissolution, then blow nitrogen to remove oxygen for 30 minutes, and raise the temperature to 55°C. After adding 5ml of potassium persulfate (10mg / ml), carry out free radical polymerization and crosslinking reaction at a constant temperature of 55°C for 10 hours; after the reaction, use a dialysis bag for dialysis for 3-5 days to remove unreacted monomers and other small molecules. An organic microgel with a three-dimensional crosslinked network structure was obtained.
[0065] Take the microgel suspension obtained above and an equal volume of two-dimensional material MoS 2 solution (0.5mg / ml) for alternating self-assembly on quartz wafers using a spin coater, microgel and MoS 2 The quality is 90:3. At room temperature, the microgel suspension was first spin-coated at a low speed (400rmp) for 12 seconds, and then the MoS 2...
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