Clay-Polymer Interactions: Summary and Perspectives
@article{Theng1982ClayPolymerIS, title={Clay-Polymer Interactions: Summary and Perspectives}, author={Benny K. G. Theng}, journal={Clays and Clay Minerals}, year={1982}, volume={30}, pages={1-10} }
The adsorption of uncharged polymers by clays is largely “entropy-driven.” Polymer conformation changes from a random coil in solution to an extended form at the surface in which adsorbed polymer segments or trains alternate with loops and tails extending away from the surface. Although the net interaction energy, ε, per segment-surface contact is small (~1 kT unit), the total energy of adsorption is large because the fraction of train segments, p, is commonly between 0.3 and 0.5. The…
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