The adsorption behavior of polyvinyl alcohol (PVA) on the CaCO 3 /solution interface under the influence of sodium oleate (SOl) interaction was investigated by the adsorbed amount, FTIR spectra, X-Ray diffraction and zeta potential. Effects of solid to liquid ratio and temperature was also examined. Observed increase of the PVA adsorption in presence of the sodium oleate resulted from a polymer-surfactant complex formation. The surfactant also influences on the structure of the adsorbed polymer layers. This effect was proved by adsorption measurements that allow calculation of the thickness of the adsorbed layer of the polymer on the surface of CaCO 3 in the presence and the absence of sodium oleate. The interaction between oleate anions and PVA is a physical type (via hydrogen bonding).

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