Abstract
With a view to simplifying and reducing the cost of the synthesis of novel selective restricted-access materials based on microporous hypercrosslinked polystyrene for solid-phase extraction, various polystyrene crosslinking agents and Friedel–Crafts catalysts in various combinations have been studied. It has been found that the most effective crosslinking agent is monochlorodimethyl ether; in addition, expensive tin chloride has been effectively replaced with a smaller amount of cheap ferric chloride. Under special conditions for the suspension copolymerization of styrene with 1, 2, and 3% of divinylbenzene, copolymers with a bead size of 30–70 μm have been synthesized. Each of the copolymers has been further crosslinked with monochlorodimethyl ether to a degree of crosslinking of 100, 150, and 200%. These polymers are porous materials swellable in water and any organic solvents. The hypercrosslinked polymer network is not accessible to large molecules of proteins (Cytochrome C and albumin) and does not cause protein adsorption; owing to this feature, the sorbents can be classified as novel selective restricted-access materials.
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Original Russian Text © A.Yu. Popov, Z.K. Blinnikova, M.P. Tsyurupa, V.A. Davankov, 2018, published in Vysokomolekulyarnye Soedineniya, Seriya B, 2018, Vol. 60, No. 5, pp. 408–415.
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Popov, A.Y., Blinnikova, Z.K., Tsyurupa, M.P. et al. Synthesis and Physicochemical Properties of Hypercrosslinked Polysterene Restricted-Access Materials. Polym. Sci. Ser. B 60, 680–687 (2018). https://doi.org/10.1134/S1560090418050123
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DOI: https://doi.org/10.1134/S1560090418050123