6533b823fe1ef96bd127edc0

RESEARCH PRODUCT

Interfaces between coexisting phases in polymer mixtures: What can we learn from Monte Carlo simulations?

Friederike SchmidKurt BinderMarcus MüllerAndreas Werner

subject

chemistry.chemical_classificationPolymers and PlasticsCondensed matter physicsOrganic ChemistryMonte Carlo methodBinary numberPolymerCondensed Matter PhysicsUniversality (dynamical systems)Condensed Matter::Soft Condensed MatterSurface tensionchemistryMaterials ChemistryIsing modelPolymer blendStatistical physicsThin film

description

Symmetric binary polymer mixtures are studied by Monte Carlo simulation of the bond fluctuation model, considering both interfaces between coexisting bulk phases and interfaces confined in thin films. It is found that the critical behavior of interfacial tension and width is compatible with that of the Ising model, as expected from the universality principle. In the strong segregation limit, only qualitative but not quantitative agreement with the self-consistent field (SCF) theory is found. It is argued that the SCF theory requires √ 6 X √D for short-range forces, in agreement with experiment.

https://doi.org/10.1002/masy.19991390102