6533b872fe1ef96bd12d372d
RESEARCH PRODUCT
Momentum-dependent interfacial tension in polymer solutions
A. MilchevA. MilchevKurt Bindersubject
chemistry.chemical_classificationCapillary waveMaterials scienceComputer simulationMonte Carlo methodGeneral Physics and AstronomyThermodynamicsFlexural rigidityPolymerCondensed Matter::Soft Condensed MatterMomentumSurface tensionchemistryWettingdescription
A model for the interface between a concentrated and a very dilute polymer solution is studied by Monte Carlo simulations at temperatures below the Theta temperature (in bad solvent conditions). The wave-number–dependent interfacial tension γ(q) is extracted from an analysis of the capillary wave amplitudes. It is shown that γ(q) decreases monotonically with q2, while no evidence is found for the predicted increase γ(q) ∝ κq2 with a positive bending rigidity κ of the interface at large q. Consequences for the interpretations of simulations and experiments on interfacial widths are briefly discussed.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2002-07-01 | Europhysics Letters (EPL) |