Abstract
The synthesis of composite sorbents from porous silica modified by polyvinyl alcohol was studied. The initial silica retained its porosity after modification which was performed by application of polyvinyl alcohol from aqueous solution. The subsequent thermal or microwave treatment gave nanolayers of water-resistant polyvinyl alcohol. Microwave irradiation was found to be more advantageous than conventional thermal treatment from the viewpoint of the polymeric phase and sorbent parameters. Sorption properties of the resulting sorbents with respect to protein, oligonucleotide, and dyes were studied.
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