The Interaction of Poly(vinylpyrrolidone) and Solid Particles in Ethanol

Adsorption of Polyvinylpyrrolidone and its Impact on Maintenance of Aqueous Supersaturation of Indomethacin via Crystal Growth Inhibition

“…High affinity adsorption isotherms such as those found in the present study for PVP on indomethacin ( Fig. 5) have also been observed for the adsorption of PVP onto other surfaces including kaolinite, 31 Na-montmorillonite, 49 polystyrene, 32,45 graphite, 48 silica, 30,46,48 and titanium dioxide. 50 A low-affinity isotherm found for PVP adsorption on alumina was attributed to weak interactions between PVP and alumina.…”

Suspension Polymerization of Styrene with Pickering Emulsifiers

“…A rapid approach to the adsorption equilibrium within two hours was also observed by Killmann and Bergmann with the same PVP sample and with Aerosil 200 as solid. [31] The formation of adsorption plateaus for PVP with an exponential rise at lower PVP concentrations was also observed by Killmann and Bergmann, [31] Parnas et al [32] and Esumi et al [33] …”

Immobilization of Polymer-Stabilized Noble Metal Colloids and Their Catalytic Properties for Hydrogenation of Olefins

“…The amount of adsorbed polymer on silica tion. PVP-Pd colloid was prepared by refluxing a mixture of PdCl 2 (0.22 mmol Pd), PVP (4.49 mmol as unit mono-changes with pH (10) or solvent with different dielectric constant (11). In the case of polymer complex formation mer), and methanol (300 ml) for 30 min, and then for a further 40 min after 35 ml methanol solution of NaOH (46.6 by hydrogen bonding between PAA and PVP or PVA, an aqueous medium and low pH (pH 3) favored thorough premg) was added.…”