Effect of the structure of cationic polymers on the flocculation and the electrophoretic mobility of crystalline silica

Block polyelectrolytes and colloidal stability

“…perfect neutralization conditions, i.e. when the total polyion charge exactly matches the total colloid charge [3][4][5][6]. This is in qualitative agreement with collective findings from a considerable amount of simulation work [7][8][9].…”

Improving permeate flux and product transmission in the microfiltration of a bacterial cell suspension by flocculation with cationic polyelectrolytes

“…The largest flocs were formed by flocculation with C-4224, with C-581 forming the second largest flocs. This result is consistent with findings from the flocculation of other suspensions where high molecular weight polyelectrolytes caused the highest degree of flocculation [26,[30][31][32][33]41,42]. The higher molecular weight of C-4224 and C-581 provided a large extended chain length relative to the diameter of the Bacillius particles (∼2 m), providing the potential for bridging flocculation.…”

Dispersion of TiN in aqueous media

“…PEI is virtually a highly branched polybase (pK a ≈ 10.4) with branch points every 3 to 3.5 monomer units. The three-dimensional branched molecule assumes a spherical branched symmetric compact structure in solution [48][49][50]. Fig.…”