Preparing linkage type polysaccharide chiral fixed phase by free radical copoly merization method
A chiral stationary phase and polysaccharide technology, applied in chemical instruments and methods, and other chemical processes, can solve the problems of unrealized commercial production, numerous reaction steps, cumbersome operations, etc., and achieve a wide range of solvent selectivity and application Wide-ranging, easy-to-create effects
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[0018] 1) Preparation of methacrylate polysaccharide derivatives
[0019] Take 3g of cellulose and place it in a reactor filled with 100mL of pyridine, add 10mL of phenyl isocyanate and 1mL of methacryloyl chloride under stirring conditions, heat up the reaction system to 80°C, and react for 10 hours under the protection of nitrogen; cool to After room temperature, a large amount of methanol was added, centrifuged, and the solid was collected and dried for future use.
[0020] 2) Preparation of Acrylate Silica Gel Derivatives
[0021] The silylating reagent γ-methacrylateoxypropyltrimethoxysilane (12mL) containing methacrylate was placed in a reactor filled with toluene solvent, and chromatographic silica gel (6g) carrier (5μ, ) reaction to obtain methacrylate silica gel derivatives;
[0022] 3) By-radical copolymerization
[0023] The methacrylate polysaccharide derivatives prepared above are coated on the surface of the obtained methacrylate silica gel derivatives in a r...
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