6533b7dafe1ef96bd126eac5
RESEARCH PRODUCT
Conformational Properties of Polymer Mushrooms Under Spherical and Cylindrical Confinement
Peter VirnauRong WangRong WangKurt Bindersubject
chemistry.chemical_classificationQuantitative Biology::BiomoleculesPolymers and PlasticsChemistryOrganic ChemistryMonte Carlo methodPolymerRadiusCondensed Matter PhysicsMolecular physicsGyrationCondensed Matter::Soft Condensed MatterInorganic ChemistryPlanarMaterials ChemistryRadius of gyrationCylinderStatistical physicsScalingdescription
A coarse grained model of a flexible macromolecule end-grafted on the inside of a sphere or a cylinder under good solvent conditions is studied by Monte Carlo simulations. For cylindrical confinement, two regimes are found: when the cylinder radius R exceeds the gyration radius R 90 of the polymer mushroom grafted to a planar surface, a simple scaling description holds. In the opposite case, a non-monotonic crossover to a cigar-like quasi-one-dimensional structure occurs, and the distribution P e (x) of the free chain end in the x-direction along the cylinder axis becomes bimodal. Spherical confinement, on the other hand, causes a crossover from dilute to semidilute behavior of the structural properties.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-05-18 | Macromolecular Theory and Simulations |