Studies of The Mechanism of Polyvinyl Alcohol Adsorption on The Calcite/Water Interface in The Presence of Sodium Oleate

N.S. LABIDI, A. DJEBAILI

Department of chemistry, Faculty of sciences, University of the sciences and technology of Oran (U.S.T.O.MB), BP-1505 Oran El-M’naouer (31000), Algeria.
Laboratoire d'Etude des Matériaux Organiques LEMO, Faculté des Sciences-Département de chimie Université de Batna, 05000, Algerie.

DOI: 10.4236/jmmce.2008.72012                

Abstract

The adsorption behavior of polyvinyl alcohol (PVA) on the CaCO₃/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 CaCO₃ in the presence and the absence of sodium oleate. The interaction between oleate anions and PVA is a physical type (via hydrogen bonding).

Keywords

Adsorption; Polyvinyl alcohol (PVA) ; Sodium oleate; Calcite ; Polymerconformation

Conflicts of Interest

The authors declare no conflicts of interest.

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