Ultrathin free-standing polyelectrolyte nanocomposites: A novel method for preparation and characterization of assembly dynamics

Article Abstract:

The method for preparing and characterizing free-standing ultrathin nano-composite film assembly by using layer-by-layer adsorption of polyelectrolytes onto a charged insoluble monolayer template at the aqueous/air interface of a single pendant drop is discussed. The assembly was prolonged with small-amplitude (>1 percent) perturbations in the film density during adsorption and the time scales for assembly range from 1 to 4 minute and increased with an increase in film thickness.

All Other Miscellaneous Chemical Product and Preparation Manufacturing, Chemical preparations, not elsewhere classified, Polyelectrolytes, Electrolyte solutions, Density functionals, Density functional theory

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Stability of foam films and surface rheology: an oscillating bubble study at low frequencies

Article Abstract:

Oscillating bubble is studied to investigate the correlation between the stability of foam films and surface rheological parameters for two particular surfactants, namely beta-C(sub 12)G(sub 2) and C(sub 10)E(sub 4). A comparison of the results obtained for beta-C(sub 12)G(sub 2) with those obtained for C(sub 10)E(sub 4) reveals a correlation between the stability of the films and the surface dilational elasticity of the respective monolayers.

Monomolecular films, Rheology

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Dilatational rheology of beta-casein adsorbed layers at liquid-fluid interfaces

Article Abstract:

The rheological behavior of beta-casein adsorption layers formed at the air-water and tetradecane-water interfaces is studied in detail by means of pendant drop tensiometry. The experimental dilataional results obtained for a wide range of frequencies are presented for both interfaces.

Dry, Condensed, and Evaporated Dairy Product Manufacturing, Dry, condensed, evaporated products, Casein

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