منابع مشابه
Effect of polymer–polymer interactions on the surface tension of colloid–polymer mixtures
The density profile and surface tension for the interface of phase-separated colloid–polymer mixtures have been studied in the framework of the square gradient approximation for both ideal and interacting polymers in good solvent. The calculations show that in the presence of polymer– polymer excluded volume interactions the interfaces have lower widths and surface tensions compared to the case...
متن کاملMacroscopic modeling of the surface tension of polymer-surfactant systems.
Polymer-surfactant mixtures are increasingly being used in a wide range of applications. Weakly interacting systems, such as SDS/PEO and SDS/PVP, comprise ionic surfactants and neutral polymers, while strongly interacting systems, such as SDS/POLYDMDAAC and C12TAB/NaPSS, comprise ionic surfactants and oppositely charged ionic polymers. The complex nature of interactions in the mixtures leads to...
متن کاملEstimation of solid-liquid interfacial tension using curved surface of a soft solid.
Unlike liquids, for crystalline solids the surface tension is known to be different from the surface energy. However, the same cannot be said conclusively for amorphous materials like soft cross-linked elastomers. To resolve this issue we have introduced here a direct method for measuring solid-liquid interfacial tension by using the curved surface of a solid. In essence, we have used the inner...
متن کاملPulling an adsorbed polymer chain off a solid surface.
The thermally assisted detachment of a self-avoiding polymer chain from an adhesive surface by an external force applied to one of the chain-ends is investigated. We perform our study in the "fixed height" statistical ensemble where one measures the fluctuating force, exerted by the chain on the last monomer when a chain-end is kept fixed at height h over the solid plane at different adsorption...
متن کاملSolid surface tension measured by a liquid drop under a solid film.
We show that a drop of liquid a few hundred microns in diameter placed under a solid, elastic, thin film (∼10 μm thick) causes it to bulge by tens of microns. The deformed shape is governed by equilibrium of tensions exerted by the various interfaces and the solid film, a form of Neumann's triangle. Unlike Young's equation, which specifies the contact angles at the junction of two fluids and a ...
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ژورنال
عنوان ژورنال: Kobunshi
سال: 1968
ISSN: 0454-1138,2185-9825
DOI: 10.1295/kobunshi.17.506