A preparation method for solid film dip-coated with a novel chiral recognition agent
A new type of chiral recognition technology, applied in the field of membrane separation and solid membrane separation of chiral compounds, can solve problems such as low solubility, achieve high selectivity, enhance chiral recognition ability, and simple steps.
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specific Embodiment 1
[0035] In this implementation, the nylon 6 membrane with electronegativity itself is used as the base membrane, the pore size is 0.22 μm, and the chiral ionic liquid used is mono-6-deoxy-6-(3-methylimidazole) β-cyclodextrin p-toluene Sulfonate, chitosan is industrial grade, polyanion is polyphenylacrylic acid (PAA, molecular weight 4×10 6 ).
[0036] Specific operation and method:
[0037](1) To prepare cyclodextrin-based chiral ionic liquids, the specific steps are: ①Add 625ml deionized water to a 1000ml beaker, weigh 75g of β-cyclodextrin, slowly add it to the above deionized water, and keep stirring , the temperature is controlled at about 10°C-20°C, and the liquid in the beaker becomes a turbid white suspension; ② Weigh 8.2125g NaOH and dissolve it in 25ml water, and after it is completely dissolved, slowly add it dropwise to the above-mentioned In the suspension, the suspension becomes clear after the dropwise addition, and the clear solution continues to be stirred for...
specific Embodiment 2
[0046] In this implementation, a polyacrylonitrile membrane (PAN membrane) is used as the base membrane, and the chiral ionic liquid used is mono-6-deoxy-6-(3-methylimidazole) β-cyclodextrin p-toluenesulfonate, chitosan The sugar is industrial grade, and the polyanion is polyphenylacrylic acid (PAA, molecular weight 4×10 6 ).
[0047] Specific operation and method:
[0048] (1) Prepare cyclodextrin-based chiral ionic liquids. The specific steps are: ① Add 625ml of pure water to a 1000ml beaker, weigh 75g of β-cyclodextrin, slowly add it to the above deionized water, and keep stirring , the temperature is controlled at about 10°C-20°C, and the liquid in the beaker becomes a turbid white suspension; ② Weigh 8.2125g NaOH and dissolve it in 25ml water, and after it is completely dissolved, slowly add it dropwise to the above-mentioned In the suspension, the suspension becomes clear after the dropwise addition, and the clear solution continues to be stirred for 60 minutes; ③Weigh...
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