Interlayer adsorption of polyvinylpyrrolidone on montmorillonite |
| |
| Authors: | Rachel Levy CW Francis |
| |
| Institution: | Agricultural Research Organization, Volcani Center, Institute of Soils and Water, Bet-Dagan, P. 0. Box 6, Israel;Oak Ridge National Laboratory, Environmental Sciences Division, Oak Ridge, Tennessee 37830 USA |
| |
| Abstract: | Two methods (x-ray diffraction and desorption of 109Cd and 85Sr) were used to provide indirect evidence for the adsorption of polyvinylpyrrolidone (PVP) on the surface of montmorillonite. It was shown that by decreasing the number of solvent layers in the interlayer distance the amount of adsorbed PVP was decreased, indicating that attachment of the polymer to the tetrahedral sheets is likely to occur. Desorption of radio-nuclides from calcium and sodium montmorillonites confirmed this hypothesis. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
