6533b837fe1ef96bd12a25f2

RESEARCH PRODUCT

Grafted polymer layers under variable solvent conditions: A Monte Carlo simulation

Kurt BinderPik Yin Lai

subject

chemistry.chemical_classificationMaterials sciencePolymers and PlasticsTime displacementOrganic ChemistryMonte Carlo methodMechanicsPolymerCondensed Matter PhysicsSolventChain (algebraic topology)chemistryMaterials ChemistryStatistical physicsScalingVariable (mathematics)

description

Polymer chains anchored with one end at a hard wall under variable solvent conditions are investigated by Monte Carlo simulations using the bond- fluctuation model. Detail information on the structural properties are obtained above, at, and below the Θ-point and discussed in terms of the appropriate theories. In particular, the scaling of the brush thickness is formulated and verified by the simulation data. For the dynamics at the Θ-point, both the relaxation time of the chain configuration and the mean-square time displacement are studied. At temperatures distinctly below the Θ-point, we find that the layer develops considerable lateral inhomogeneity in its density, which has not been predicted by previous theories.

https://doi.org/10.1002/masy.19930650121