Hygroscopic properties of Enoxil-silica composites
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STAVINSKAYA, Oksana; LAGUTA, Iryna; KAZAKOVA, Olga; KUZEMA, Pavlo; LUPASCU, Tudor. Hygroscopic properties of Enoxil-silica composites. In: Chemistry Journal of Moldova. 2018, nr. 2(13), pp. 89-92. ISSN 1857-1727.
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Chemistry Journal of Moldova
Numărul 2(13) / 2018 / ISSN 1857-1727 /ISSNe 2345-1688

Hygroscopic properties of Enoxil-silica composites


CZU: 54:615.12+615.2
DOI: 10.19261/cjm.2018.487
Pag. 89-92

Stavinskaya Oksana, Laguta Iryna, Kazakova Olga, Kuzema Pavlo, Lupascu Tudor
 
Chuiko Institute of Surface Chemistry, National Academy of Science of Ukraine
 
Disponibil în IBN: 24 decembrie 2018


Rezumat

Enoxil-silica composites with various Enoxil-to-silica ratios were prepared by mechanical mixing of the biologically active Enoxil and fumed silica powders. The hygroscopic properties of the composites were studied by the gravimetric method. It has been shown that the use of Enoxil in composites with silica may significantly reduce the Enoxil ability to absorb water from the gas phase and, therefore, improve its storage stability. The strongest hygroscopicity reduction is observed for the composites with Enoxil-to-silica ratio of (0.15÷0.35):1, which corresponds to an approximate monolayer distribution of the Enoxil biomolecules on the silica surface.

Cuvinte-cheie
Enoxil, biomolecule, Fumed silica, composite, hygroscopicity.