Clay-Polymer Interactions: Summary and Perspectives

  title={Clay-Polymer Interactions: Summary and Perspectives},
  author={Benny K. G. Theng},
  journal={Clays and Clay Minerals},
  • B. Theng
  • Published 1 February 1982
  • Chemistry
  • Clays and Clay Minerals
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… 
Chain conformation of polymers adsorbed to clay particles: effects of charge and concentration.
The difference in adsorption properties as a function of polymer charge and concentration is interpreted in terms of conformational differences of adsorbed polymer at the clay surface.
Interactions of a water-soluble polymeric detergent additive (polycarboxylate) with clay minerals from soil
Acrylic/maleic acid (PAA-PMLA) copolymer is a low biodegradable dispersing agent. Its interfacial behaviour is investigated at clay minerals which control the transport of organic compounds in the
Study of polymer-clay composite particles Preparation, properties and potential applications
Abstract A range of polymer-clay composite particles have been prepared and the ability of the dispersed particles to absorb an important contaminant (PO3-4 ) from water has been investigated. The
The Interaction of Polysaccharides with Silver Hill Illite
The clay-polysaccharide interaction is of practical importance in the formation and stabilization of soil aggregates. This study examined the adsorption of three synthetic polysaccharides (PSS) and
Anionic Polyacrylamide Polymer Adsorption by Pyrophyllite and Montmorillonite
The mechanism by which the anionic polymers interact with platelets of 2:1 clay minerals is not fully understood. The objective of the present study was to evaluate the effect of the electric field
Anionic Polyacrylamide Polymers Effect on Rheological Behavior of Sodium-Montmorillonite Suspensions
Polyacrylamide (PAM) is a long-chain synthetic polymer that acts as a strengthening agent, binding clay particles together. The interaction between anionic PAM and clay particles is not well
Adsorption of acrylamide-based copolymers from aqueous solutions on clay granules
The equilibrium adsorption of three samples of high-molecular-mass acrylamide-sodium acrylate copolymers with a degree of ionization of 7–34% from concentrated aqueous solutions on Khvalynsk clay


Adsorption of polyvinyl alcohols by montmorillonite
The Adsorption of Poly(Ethylene Glycols) on Clay Minerals
Abstract Poly(ethylene glycols) of molecular weights 200 to 20000 were strongly adsorbed on montmorillonite from aqueous solution. Free energies of adsorption calculated from the adsorption isotherms
Polydispersity effects and the interpretation of polymer adsorption isotherms
In many cases, polymer adsorption is studied by measuring adsorption isotherms. Quite often it is found that the results are at variance with theoretical predictions. However, usually these
The Adsorption and Reactions of Enzymes and Proteins on Clay Minerals: IV. Kaolinite and Montmorillonite
With kaolinite and montmorillonite the initial sorption of proteins is rapid; about three-fourths of the maximum uptake occurs in the first few minutes in suspension. Equilibrium is only reached in a
Adsorption of cationic polysulfone on bentonite
The adsorption of a polycation (diallyldimethylammonium chloride–SO2 copolymer) on bentonite, a hydrophilic and negatively charged clay, was investigated. The cation exchange capacity of bentonite
Interactions between montmorillonite and fulvic acid