Nano structural material model making method
A technology of nanostructure and manufacturing method, which is applied in the field of manufacturing nanostructure material templates, and can solve the problems of increasing technical cost, singleness, and limited application
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Embodiment 1
[0019] Example 1: 3% by weight of the block copolymer was dissolved in the co-solvent DMF, stirred for 12 hours, and then the precipitant deionized water of polystyrene PS was slowly added to induce microphase separation of the block copolymer, self-assembled into micelles. When the water content is 6% of the solution volume, stop adding water. Stir continuously for 48 hours, then add deionized water, the amount added is 5 times of the total solution volume, so that the form of polymer micelles is frozen, and the existing form and size are maintained. Put the above-prepared solution into a dialysis bag so that small molecules with a molecular weight below 12,000 can pass through freely, and dialyze in a deionized water environment for 3 days, changing the water once a day. Promptly obtain nanosphere micelles, see Fig. 1A / A'. The micelles obtained above were diluted 4 times with deionized water and spin-coated on the silicon substrate. After the solvent volatilized, a nanosph...
Embodiment 2
[0020] Example 2: 1% by weight of the block copolymer was dissolved in the co-solvent Dioxane, stirred for 3 hours, and then slowly added to the precipitant deionized water of the polystyrene PS segment to induce the microphase of the block copolymer Separated and self-assembled into micelles. When the water content is 18% of the solution volume, stop adding water. Stir continuously for 2 hours, then add deionized water, the amount added is 5 times of the total solution volume, so that the form of polymer micelles is frozen, and the existing form and size are maintained. The prepared solution was put into a dialysis bag so that small molecules with a molecular weight of 12,000 could pass through freely, and dialyzed in a deionized water environment for 5 days, changing the water once a day. That is to obtain nanorod micelles with uniform diameter and long size, the longest being 5 microns, as shown in Fig. 1B / B'. The micelles obtained above were diluted 4 times with deionize...
Embodiment 3
[0021] Example 3: 1% by weight of the block copolymer was dissolved in the co-solvent THF, stirred for 5 hours, and then the precipitant deionized water of PS was slowly added to induce microphase separation of the block copolymer, and self-assembled into micelles. When the water content is 17% of the solution volume, stop adding water. Stirring was continued for 3 hours. Then add deionized water in an amount of 6 times the volume of the total solution to freeze the polymer micelles and maintain the existing shape and size. Put the prepared above solution into a dialysis bag so that small molecules with a molecular weight below 12,000 can freely pass through, and dialyze in a deionized water environment for 7 days, changing the water once a day. That is, nanovesicle micelles are obtained, as shown in Fig. 1C / C'. The micelle obtained above was diluted 5 times with deionized water and spin-coated on the silicon substrate, and the nanovesicle polymer micelle template was forme...
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