Preparation method of polyaniline nanofiber array
A technology of nanofiber array and polyaniline, which is applied in the direction of fiber chemical characteristics, single-component synthetic polymer rayon, textiles and papermaking, etc., can solve unfavorable industrial production, high energy consumption, and lack of polyaniline nanofibers. Sequenced array structure and other issues to achieve good hydrophobic/hydrophilic transition performance and large specific surface area
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Embodiment 1
[0021] 1. Soak the polystyrene substrate in ethanol for 10 minutes, then rinse it with deionized water and put it in an oven to dry for use;
[0022] 2. Immerse the polystyrene substrate obtained in step 1. into an aniline aqueous solution with a mass percentage of 0.5%, and swell for 12 hours;
[0023] 3) prepare the ferric nitrate aqueous solution that the molar concentration is 0.5mol / L, take out the aniline-swelled polystyrene substrate in step 2., rinse with deionized water to remove the surface aniline monomer, and then put into the prepared ferric nitrate aqueous solution The reaction was carried out for 3 h, and the reaction temperature was controlled at 0° C. After the reaction, the substrate was taken out, washed with deionized water, and dried to obtain a polyaniline nanofiber array grown on the polystyrene substrate.
Embodiment 2
[0025] 1. Take the polymethyl methacrylate substrate and soak it in ethanol-acetone mixed solution for 20 minutes, then rinse it with deionized water and put it in an oven to dry for later use;
[0026] 2. Immerse the substrate obtained in step 1. into an aniline aqueous solution with a mass percentage of 1.25%, and swell for 18 hours;
[0027] 3. The ammonium persulfate aqueous solution with a molar concentration of 1.25 mol / L is prepared, and the aniline-swelled polymethyl methacrylate substrate in step 2) is taken out, and the surface aniline monomer is rinsed with deionized water to remove the surface aniline monomer, and then put into the prepared solution. The ammonium persulfate solution was reacted for 12 hours, and the reaction temperature was controlled at 20 °C. After the reaction, the substrate was taken out, washed with deionized water, and dried to obtain a polyaniline nanofiber array grown on the polymethyl methacrylate substrate.
Embodiment 3
[0029] 1. Take a glass sheet as a carrier, first perform ethanol ultrasonic cleaning treatment on it, configure a toluene solution with a mass concentration of 1% polystyrene, and then use a dip coating method to coat the polystyrene solution on it, and dry to obtain polystyrene Composite substrate with glass sheet;
[0030] 2. The substrate obtained in step 1) was immersed in an aniline aqueous solution with a mass percentage of 2%, and swelled for 24 hours;
[0031] 3) Prepare a ferric sulfate aqueous solution with a molar concentration of 2.0 mol / L, take out the aniline swollen substrate in step 2), rinse with deionized water to remove the surface aniline monomer, and then put it into the prepared ferric sulfate solution to react for 24h , the reaction temperature was controlled at 40° C., the substrate was taken out after the reaction, washed with deionized water, and dried to obtain a polyaniline nanofiber array grown on the substrate.
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