Molecular dynamics simulations were conducted to investigate the structural properties of
melts of nonconcatenated ring polymers and compared to melts of linear polymers. The …

We review recent theoretical studies on the statistical and dynamical properties of polymers
with nontrivial structures in chemical connectivity and those of polymers with a nontrivial …

Atomistic configurations of model unentangled ring polyethylene (PE) melts ranging in chain
length from C24 up to C400 have been subjected to detailed molecular dynamics (MD) …

The dynamical characteristics of ring and linear polyethylene (PE) molecules in the melt
have been studied by employing atomistic molecular dynamics simulations for linear PEs …

Diffusion of long ring polymers in a melt is much slower than the reorganization of their
internal structures. While direct evidence for entanglements has not been observed in the …

We studied equilibrium conformations of ring polymers in melt over the wide range of
segment number N of up to 4096 with Monte-Carlo simulation and obtained N dependence …

Topological constraints can affect both equilibrium and dynamic properties of polymer
systems and can play a role in the organization of chromosomes. Despite many theoretical …

Using dynamic Monte Carlo simulations based on the bond-fluctuation model, we
systematically investigate the static and dynamic properties of a tracer ring polymer in a melt …

The concentration dependence of the conformations of ring polymers is investigated by
lattice Monte Carlo simulations and compared with that of linear polymers. The relative radii …

Uncrossability of polymer chains in a melt gives rise to a restricted transverse motion of
chains, which is represented by a confining “tube”. Ultimately, the tube must be of …