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Method for preparing surface-imprinted polyacrylate microsphere in the form of core-shell for the selective separation of heavy metal ion
Method for preparing surface-imprinted polyacrylate microsphere in the form of core-shell for the selective separation of heavy metal ion
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机译:用于选择性分离重金属离子的核壳型表面压印聚丙烯酸酯微球的制备方法
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摘要
A method of preparing surface-imprinted microspheres having a core-shell form for selective separation of heavy metal ions, includes reacting a metal salt of a heavy metal with a monomer having at least one group that reacts with the metal salt under conditions effective to prepare a metal ion-containing monomer; mixing the metal ion-containing monomer with a cross-linker monomer and a polymerization initiator in a solvent to provide a mixture; subjecting styrene to dispersion polymerization to provide polystyrene beads that serve as a core; causing absorption of dibutyl phthalate onto the polystyrene beads to provide dibutyl phthalate-containing polystyrene beads; adding the mixture to the dibutyl phthalate-containing polystyrene beads, causing absorption of the metal ion-containing monomer onto the dibutyl phthalate-containing polystyrene beads, and causing polymerization of the absorbed monomer with the cross-linker monomer to provide the surface-imprinted microspheres; and causing removal of the metal ions to provide imprinted sites.
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