Rheology of viscoelastic anionic micellar solutions in the presence of a multivalent counterions

Salt-induced viscoelastic wormlike micelles formed in surface active ionic liquid aqueous solution

“…The higher the shear rate, the lower the shear viscosity and the shear viscosity is a constant and is less dependent on time when the shear rate is fixed. There is no shear-induced structure transition under this circumstance, as documented elsewhere [15].…”

“…The crossed polarizer and optical microscopy investigations indicated that the samples were isotropic, not lyotropic liquid crystals. The well-arranged structure of wormlike micelles the FF-TEM micrograph showed may be attributed that the wormlike micelles were in the same 'micelle face' [15]. Under slightly shearing, more and more micelles presented further entanglement and the network structure was formed.…”

Rheological properties and thickening mechanism of aqueous diutan gum solution: Effects of temperature and salts

“…The shear rate was increased from 0.01 s −1 to 1000 s −1 in 300 s. In rheology, the relationship between viscosity and shear rate can be fitted by the following equations (Mu & Li, 2001;Mu, Li, Jia, Wang, & Zhang, 2002):…”

Organically Functionalized Mesoporous Silica by Co‐structure‐Directing Route

“…For example, the quaternary ammonium surfactant cetyltrimethylammonium bromide (CTAB) bears a permanently positive headgroup, and therefore the self-assembly of the CTAB is highly dependent on the intrinsic geometry of the surfactant without being critically affected. [ 27 ] The self-assembly of anionic surfactants is dependent on the electrostatic repulsive interactions between the headgroups, as proved by the effect of the counterions or co-surfactants, [45][46][47][48][49][50][51] and this could be manipulated by controlling the ionization degree of the surfactant. When the ionization degree is high, anionic surfactants are highly charged and self-assemble into globular micelles, having a high hydrophobic/hydrophilic interface curvature.…”