Fabrication of monodisperse poly (allyl glycidyl ether-co-divinyl benzene) microspheres and their application in anion-exchange stationary phase
2019
Liu, Junwei | Sun, Yan | Wang, Chaowei | Hu, Kai | Jia, Chunxiao | Wang, Guoqing | Sun, Yu-an | Zhang, Shusheng | Zhu, Yan
Micron-sized poly (allyl glycidyl ether-co-divinyl benzene) microspheres were prepared by a seed swelling and polymerization method and applied to prepare anion-exchange stationary phases by direct quaternization. The mono-dispersity, diameters, surface characteristics and porosity of microspheres were measured by scanning electron microscope and nitrogen adsorption-desorption measurements. The anion-exchange stationary phases were characterized by Fourier Transform Infrared Spectrum, Elemental Analysis, Breakthrough Curve, etc. The chromatographic properties of this self-fabricated anion-exchange column were investigated by separating conventional anions and organic weak acids. According to the results, poly (allyl glycidyl ether-co-divinyl benzene) microsphere possesses good compatibility in the whole pH range of 1–14; the presence of epoxy group guarantees the microsphere’s superior reaction activity. The prepared poly (allyl glycidyl ether-co-divinyl benzene) microsphere is promising to replace poly (styrene-divinylbenzene) and poly (glycidylmethacrylate-divinylbenzene) and becomes a generation of support for the preparation of anion exchangers.
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