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1 2007

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Interaction of Nanooxides with Poly(vinyl alcohol)

Gun'ko V., Zarko V., Andriyko L., Leboda R., Skubiszewska-Zięba J., Janusz W.

Polish Journal of Chemistry

2007

Vol. 81, nr 3

411-424

Interaction of silica, alumina/silica and titania/silica nanooxideswith poly(vinyl alcohol) was investigated in gaseous and aqueous media using infrared spectroscopy, adsorption, AFM and photon correlation spectroscopy methods. Formation of PVA monolayer on oxide nanoparticles leads to relatively small changes in morphological and textural characteristics of the materials. The characteristics of interfacial water/PVA layer, particle size distribution and Cd(II) adsorption depend on surface content of alumina or titania affecting amounts of Brönsted and Lewis acid sites. Arelativelyweak influence of various pretreatments on the structural characteristics of the materials depicts the stability of PVA/nanooxide composites as dry powders and aqueous dispersions.