Synthesis and Adsorption Properties of 4-Vinylpyridine and Styrene Copolymer In Situ Immobilized on Silica Surface.
Copolymer of 4-vinylpyridine with styrene was in situ immobilized on silica gel surface via the heterogeneous radical polymerization. Anchorage of the copolymer on the surface layer was confirmed by IR spectroscopy. The quantity of copolymer on the silica gel surface was evaluated as 25.73 wt.% by TG and DSC-MS analysis. "Islet" location of polymer layer on the silica surface was confirmed by the scanning electron microscopy. A high adsorption activity of silica gel with immobilized copolymer towards microquantitatives of Cu(II), Cd(II), Pb(II), Fe(III), and Ni(II) ions in steady state conditions as well as of Ni(II) ions in dynamic regime was found.
Taras Shevchenko Kyiv National University, 12 L. Tolstogo Str., 01033, Kyiv, Ukraine.
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Yanovska
Taras Shevchenko Kyiv National University, 12 L. Tolstogo Str., 01033, Kyiv, Ukraine. lvretik@gmail.com.
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Vretik
Taras Shevchenko Kyiv National University, 12 L. Tolstogo Str., 01033, Kyiv, Ukraine.
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Nikolaeva
Taras Shevchenko Kyiv National University, 12 L. Tolstogo Str., 01033, Kyiv, Ukraine.
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Polonska
Maria Curie-Skłodowska University, Maria Curie-Sklodowska Sq., 20-031, Lublin, Poland.
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Sternik
Ivan Franko Zhytomyr State University, 42 Pushkina Str., 10008, Zhytomyr, Ukraine.
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Kichkiruk
4-Vinylpyridine-styrene copolymer; Adsorption; Composite; Heavy metals; In situ immobilization; Silica gel