title: Effects of the interaction range on structural phases of flexible polymers.
abstract: We systematically investigate how the range of interaction between non-bonded monomers influences the formation of structural phases of elastic, flexible polymers. Massively parallel replica-exchange simulations of a generic, coarse-grained model, performed partly on graphics processing units and in multiple-gaussian modified ensembles, pave the way for the construction of the structural phase diagram, parametrized by interaction range and temperature. Conformational transitions between gas-like, liquid, and diverse solid (pseudo) phases are identified by microcanonical statistical inflection-point analysis. We find evidence for finite-size effects that cause the crossover of "collapse" and "freezing" transitions for very short interaction ranges.
authors: Center for Simulational Physics, The University of Georgia, Athens, Georgia 30602, USA. gross@physast.uga.edu
authors: J
authors: J
authors: Gross
authors: T
authors: T
authors: Neuhaus
authors: T
authors: T
authors: Vogel
authors: M
authors: M
authors: Bachmann
mesh_terms: D008958:Models, Molecular; D008968:Molecular Conformation; D011108:Polymers / Q000737:chemistry*; D013696:Temperature
chemical_list: D011108:Polymers