Conductometric and potentiometric monitoring of polyelectrolyte adsorption on charged surfaces

Specific Counterion Effects on the Competitive Co-adsorption of Polyelectrolytes and Ionic Surfactants

“…Prior studies (30)(31)(32) have shown that polylysine adsorbs in a flat conformation on silica and on mica and negatively charged polystyrene. The polylysine surface concentrations reported here are consistent with a relatively flat conformation.…”

The Relationship between Polymer/Substrate Charge Density and Charge Overcompensation by Adsorbed Polyelectrolyte Layers

“…These two effects, taken together, cause the surface coverage to exhibit a maximum with variations in backbone charge density (6,16). An interesting observation is, however, that on the plateau of the isotherm, the surface charge is usually overcompensated (11,12,(17)(18)(19). That is, more polymer adsorbs than is needed to neutralize the underlying surface charge.…”

Conductometric analysis of polyelectrolytes in solution

“…The stoichiometry of complexation in the system polystyrene latex/polylysine.HBr-L was studied conductometrically by Bonekamp and Lyklema [55], reporting a 1:2 ratio whereas for poly(styrenesu1phonic acid)/polylysine.HBr-L a 1:l ratio was found.…”

“…[29,37,56,57,58,59,60,61,62], polyvinyl ether/maleic anhydride copolymers [51], fulvic acids (FA) [63], kaolinitic clays and clay-humic acid complexes [64], carboxymethylcellulose (H-CMC) [32,38], poly(acry1ic acid) (H-PAA), poly(methacry1ic acid) (H-PMA) [37], chondroitin sulfuric acid, heparin [65], polystyrene latices [55,66], and pectins [26].…”