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Adsorption characteristics of monodisperse magnetic cation‐exchange microspheres prepared based on swell‐penetration method
Author(s) -
Jia Bo,
Cui MengJiao,
Yang CengCeng,
Hu SiYu,
Lv YunKai
Publication year - 2019
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.48019
Subject(s) - adsorption , materials science , cationic polymerization , dispersity , chemical engineering , fourier transform infrared spectroscopy , polymer , polymer chemistry , chemistry , nuclear chemistry , composite material , organic chemistry , engineering
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 μm, 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. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136 , 48019.