A preparation method for solid film dip-coated with a novel chiral recognition agent
A technology of chiral separation and chiral ionic liquid, which is applied in chemical instruments and methods, membrane technology, semi-permeable membrane separation, etc., can solve problems such as low solubility, achieve high selectivity, enhance chiral recognition ability, step simple effect
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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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