Effect of Block and Graft Copolymers on the Stability of Colloidal Silica

Double-Hydrophilic Block Copolymers: Synthesis and Application as Novel Surfactants and Crystal Growth Modifiers

“…[93] The same block copolymers were found to stabilize colloidal silica even after the addition of salt leading to a time dependent aggregation of the unstabilized silica. [160] A clear correlation between the amount of adsorbed polymer and the stabilization was found.…”

Polymer‐Controlled Biomimetic Mineralization of Novel Inorganic Materials

“…Various DHBCs have successfully been used as stabilizers for the purely steric or combined steric/electrosteric stabilization of ceramic precursor particles like Al 2 O 3 [170,171], BaTiO 3 [172][173][174][175][176], colloidal silica [177][178][179][180][181][182], alumina-coated TiO 2 [183], CeO 2 [184], -Fe 2 O 3 (hematite) [185][186][187], maghemite [188], ACC [139], and various pigments [189] in aqueous solution. The solid amount can be stabilized to extremely high concentrations (up to 80 wt.-% [189]), showing the stabilization capabilities of optimized DHBCs.…”

Synergistic effect of polymer-surfactant mixtures on the stability of aqueous silica suspensions

“…In other words, in some of the applications destabilization of the oxide particles is the main purpose; however, in other cases stabilization is desired. 1 Surfactants and polymers can dramatically change the stability of colloidal dispersions because of the interfacial activity and both an increase or decrease of the stability is possible in these systems. When polymers are used their conformation can be manipulated by changing the suspension conditions such as pH and ionic strength or addition of a second polymer or surfactant may change their activity.…”