Polyelectrolyte adsorption

Papenhuijzen, J. M. P.; Schee, H.A. van der; Fleer, G.J.

doi:10.1016/0021-9797(85)90061-x

Cited by 148 publications

(64 citation statements)

References 10 publications

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“…Models based on lattice theories (e.g., Refs. (3)(4)(5)) or Monte Carlo simulations (e.g., Refs. (6 -8)) have also been used to (qualitatively) describe the adsorption of polyelectrolytes.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Salt Concentration on Adsorption of Low-Charge-Density Polyelectrolytes and Interactions between Polyelectrolyte-Coated Surfaces

Rojas

Claesson

Muller³

et al. 1998

Journal of Colloid and Interface Science

116

129

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Section: Introductionmentioning

confidence: 99%

The Effect of Salt Concentration on Adsorption of Low-Charge-Density Polyelectrolytes and Interactions between Polyelectrolyte-Coated Surfaces

Rojas

Claesson

Muller³

et al. 1998

Journal of Colloid and Interface Science

116

129

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“…The effect of~, on the adsorption of strong polyelectrolytes has been addressed explicitly by Papenhuijezen, et al 18 The main effect is a strong increase in adsorbed amount with~,.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Poly(styrenesulfonate) to the Air Surface of Water by Neutron Reflectivity

Yim¹,

Kent²,

Matheson³

et al. 2000

Macromolecules

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The adsorption of the strong polyelectrolyte polystyrene sulfonate (PSS) to the air surface of dilute aqueous solutions was investigated as a function of molecular weight and salt concentration. Detailed segment profiles of the deuterated polymer were determined by neutron reflection.Surface activity was also examined through surface tension measurements.In general, the segment profiles are composed of a thin layer (10-20t hick) of high concentration at the air surface, followed by a distinct second layer of much lower segment concentration that extends to larger depths into the liquid. The high segment density at the air sutiace is due to a strong surface attraction, arising from the low surface tension of the PSS backbone relative to the surface tension of water. At low salt concentration, the profiles tend toward a single dense layer, suggesting that the chains lie nearly flat at the interface in that limit. The adsorbed amount increases with salt concentration, with a stronger dependence for higher molecular weight chains. The adsorbed amounts at the air/water interface are higher than reported previously for PSS adsorbed onto neutral solid surfaces, consistent with the fact that the air-liquid interface provides a stronger surface attraction. While the trends of adsorbed amount and layer thickness with salt concentration and molecular weight are in good agreement with numerical self-consistent field lattice calculations, the measured bilayer profiles are rather different from the smoothly decaying theoretical profiles. The surface tensions of the PSS solutions are significantly lowered relative to those of pure salt solutions. Combining the reflectivity and surface tension measurements, an approximately linear relationship is established between the surface pressure and the PSS adsorbed amount.

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“…One approach is a discrete multi-Stern layer model [19][20][21][22][23], where the system is placed on a lattice whose sites can be occupied by a monomer, a solvent molecule or a small ion. The electrostatic potential is determined selfconsistently together with the concentration profiles of the polymer and the small ions.…”

Section: Introductionmentioning

confidence: 99%