6533b859fe1ef96bd12b7fac

RESEARCH PRODUCT

Colloid-polymer mixtures between asymmetric walls: Evidence for an interface localization transition

Richard L. C. VinkRichard L. C. VinkKurt BinderA. De VirgiliisJuergen Horbach

subject

Condensed Matter::Quantum Gaseschemistry.chemical_classificationMaterials scienceCapillary condensationCondensed matter physicsInterface (computing)digestive oral and skin physiologyGeneral Physics and AstronomyPolymerPhysics::Fluid DynamicsCondensed Matter::Soft Condensed MatterColloidchemistryChemical physicsThin film

description

We demonstrate via computer simulation that mixtures of colloids and polymers confined to thin films have the ability to undergo an interface localization transition. While one wall of the film is assumed to be hard for both particles, at the other wall, an additional repulsive potential acts, but on the colloids only. By varying the strength of this repulsion, a crossover from capillary condensation to interface localization is found. The latter occurs under conditions where in the bulk almost complete phase separation has occurred.

https://doi.org/10.1209/0295-5075/77/60002