Preparation of carboxyl modified PS-PGMA-DVB microspheres
Yan, Kai (2022)
Yan, Kai
2022
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-2022060716155
https://urn.fi/URN:NBN:fi:amk-2022060716155
Tiivistelmä
Chromatography is an important part of analytical science and is one of the most important separation methods in the field of analytical chemistry. Chromatography is often used for the separation, enrichment and detection of target components in mixtures. The chromatographic stationary phase is a key substance for the separation of liquid chromatographic components. The chromatographic stationary phase will directly affect the separation efficiency and the accuracy of the detection data, so the research and discovery of new chromatographic packing materials are very important and necessary. Nowadays, chromatographic stationary phases can be divided into three major categories according to their matrix materials: inorganic matrices, organic matrices and composite materials. Due to the chemical stability of organic polymers, their development and research have been popular. In this thesis, poly(glycidyl methacrylate-divinylbenzene) (poly(GMA-DVB) microspheres were prepared by seeded swelling polymerization method, and then the carboxylated poly(glycidyl methacrylate-divinylbenzene) polymer microspheres stationary phases were prepared by chemical bonding using p-aminobenzoic acid as the carboxylation reagent. The synthesized stationary phases were characterized by scanning electron microscopy and Fourier transform infrared spectrometer.