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首页> 外文期刊>Journal of Applied Polymer Science >Adsorption characteristics of monodisperse magnetic cation-exchange microspheres prepared based on swell-penetration method
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Adsorption characteristics of monodisperse magnetic cation-exchange microspheres prepared based on swell-penetration method

机译：基于膨胀渗透法制备单分散磁性阳离子交换微球的吸附特性

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摘要

A simple swell-penetration method for the controlled preparation of magnetic polymer microspheres (MPMs) was developed. The polymer microspheres (PMs) were prepared using glycidyl methacrylate as monomer and trimethylolpropane trimethacrylate as crosslinker. The PMs was functionalized by coupling sulfonate groups, and then formation of the MPMs in the presence of ferrous sulfate by swell-penetration method. The morphology, size, and magnetic properties of the MPMs were characterized by SEM, using a vibrating sample magnetometer, and by FTIR. The results showed that the average particle size was about 1.1 mu m, the surface of the microspheres was smooth, and saturated magnetization was 13.8 emu g(-1). The adsorption isotherms and kinetics between bovine serum albumin and the MPMs under the optimized adsorption conditions were investigated. The MPMs were further applied to the selective separation of serum albumin from human whole blood. Simultaneously, the adsorption and separation of melamine from milk using the MPMs was investigated. The MPMs showed promising potential for separation of protein and cationic small molecular compound. (c) 2019 Wiley Periodicals, Inc.
机译：开发了一种简单的膨胀渗透方法，用于控制磁性聚合物微球（MPMS）的控制制备。使用甲基丙烯酸缩水甘油酯作为单体和三羟甲基丙烷三甲基丙烯酸酯作为交联剂制备聚合物微球（PMS）。通过偶联磺酸盐基团，通过溶胀渗透方法在硫酸亚铁存在下形成PMS。 MPM的形态，尺寸和磁性，其特征在于SEM，使用振动样品仪和FTIR。结果表明，平均粒径为约1.1μm，微球的表面光滑，饱和磁化为13.8 emu g（-1）。研究了牛血清白蛋白和在优化吸附条件下的吸附等温线和动力学。 MPMS进一步应用于来自人类全血的血清白蛋白的选择性分离。同时，研究了使用MPMS与牛奶中三聚氰胺的吸附和分离。 MPMS显示出对蛋白质和阳离子小分子化合物的分离的有希望的潜力。 （c）2019 Wiley期刊，Inc。

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