Binding and Ion-Exchange Analysis in the Process of Adsorption of Anionic Polyelectrolytes on Barium Sulfate

The Role of Polycarboxylic Acids in Calcium Phosphate Mineralization

“…Some studies have reported that the adsorption of certain macromolecules on crystal surfaces is accompanied by expulsion of phosphate and calcium ions so as to accommodate the carboxyl groups of the peptide side chains in binding to the surface calcium ions (12,16,(68)(69)(70). This also appears to be true for charged polyelectrolytes on other than calcium phosphate surfaces (71,72).…”

Characterization of Barite Suspensions During Synthesis by Light Scattering

“…[7] offers a value in the absence of PAM for the diameter at 2 mM of 280 nm to be compared with the separately determined value of 156 nm in the presence of PAM. This comparison assumes negligible crystal growth in the concentration range of 2-5 mM.…”

“…8, the value of the turbidity at 2 mM in the presence of PAM is about half that found at the same concentration in the absence of PAM, a fact that indicates substantially smaller particle sizes with PAM. The relationship between turbidity, particle number, and particle size may be expressed by the equation (30) [7] in which N is the number of dispersed particles per unit volume and R is their radius. K t has the dimension of reciprocal area and is known as the efficiency factor for adsorption and scattering of light.…”

“…As an example, Rees et al (6) investigated the formation and morphology of calcium sulfate nanoparticles and nanowires in water-in-oil microemulsions. A study by Balastre et al on the adsorption of anionic polyelectrolytes onto barium sulfate surfaces was recently reported (7). Despite extensive studies, unexplored details of the crystal growth, nucleation and dissolution mechanisms of barite still attract research attention (8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19).…”

Effect of nitrate or sulfate on flocculation properties of cationic polymer flocculants

“…[16][17][18][19][20][21] have been used to characterize the adsorption conformation and adsorption mechanism of polyelectrolytes (e.g., PDADMAX salts, etc.). However, in low ionic strength solutions, polyelectrolytes adsorbed at an oppositely charged surface forms thin layers.…”