title: The Adsorption of Polyvinylpyrrolidone on Kaolinite Saturated with Sodium Chloride.
abstract: The adsorption of two different molecular weights of polyvinylpyrrolidone (PVP) (M(w)=44,000 and M(w)=360,000 g mol(-1)) from water on kaolinite saturated with sodium chloride has been studied. The adsorption of PVP increases slowly as temperature increases. The adsorption of PVP on the kaolinite was studied by considering Fourier transform infrared (FTIR) spectra, X-ray diffraction patterns, and dielectric constants. During the adsorption process, PVP interacts with saturating sodium cations and possibly forces some of them onto the edges of the kaolinite; thus, the dielectric constant of saturated kaolinite is reduced after PVP adsorption. Copyright 2001 Academic Press.
authors.affiliation: Department of Chemistry, Faculty of Science, Ege University, Bornova-Izmir, 35100, Turkey
authors.forename: Lina
authors.initials: L
authors.lastname: Israel
authors.forename: Çetin
authors.lastname: Güler Ç
authors.forename: Hülya
authors.initials: H
authors.lastname: Yilmaz
authors.forename: Sönmez
authors.initials: S
authors.lastname: Güler