Molecular characterization of polymer networks

SPO Danielsen, HK Beech, S Wang… - Chemical …, 2021 - ACS Publications
Polymer networks are complex systems consisting of molecular components. Whereas the
properties of the individual components are typically well understood by most chemists …

Molecular dynamics simulation study of nonconcatenated ring polymers in a melt. II. Dynamics

JD Halverson, WB Lee, GS Grest… - The Journal of …, 2011 - pubs.aip.org
Molecular dynamics simulations were conducted to investigate the dynamic properties of
melts of nonconcatenated ring polymers and compared to melts of linear polymers. The …

Static and dynamic properties of large polymer melts in equilibrium

HP Hsu, K Kremer - The Journal of Chemical Physics, 2016 - pubs.aip.org
We present a detailed study of the static and dynamic behaviors of long semiflexible polymer
chains in a melt. Starting from previously obtained fully equilibrated high molecular weight …

Universal viscosity behavior of polymer nanocomposites

JT Kalathi, GS Grest, SK Kumar - Physical review letters, 2012 - APS
Nonequilibrium molecular dynamics simulations are used to show that the shear viscosity of
a polymer melt can be significantly reduced when filled with small energetically neutral …

Comparison of friction parametrization from dynamics and material properties for a coarse-grained polymer melt

LC Johnson, FR Phelan Jr - The Journal of Physical Chemistry B, 2023 - ACS Publications
In this work, we extend an approach to coarse-grained (CG) modeling for polymer melts in
which the conservative potential is parametrized using the iterative Boltzmann inversion (IBI) …

Time-dependent material properties of aging biomolecular condensates from different viscoelasticity measurements in molecular dynamics simulations

AR Tejedor, R Collepardo-Guevara… - The Journal of …, 2023 - ACS Publications
Biomolecular condensates are important contributors to the internal organization of the cell
material. While initially described as liquid-like droplets, the term biomolecular condensates …

[HTML][HTML] Dynamics of poly [n] catenane melts

PM Rauscher, KS Schweizer, SJ Rowan… - The Journal of …, 2020 - pubs.aip.org
Inspired by advances in the chemical synthesis of interlocking polymer architectures,
extensive molecular dynamics simulations have been conducted to study the dynamical …

Multiscale modeling approach toward the prediction of viscoelastic properties of polymers

G Maurel, B Schnell, F Goujon, M Couty… - Journal of Chemical …, 2012 - ACS Publications
We report a multiscale modeling approach to study static and dynamical properties of
polymer melts at large time and length scales. We use a bottom-up approach consisting of …

Nanorheology of entangled polymer melts

T Ge, GS Grest, M Rubinstein - Physical review letters, 2018 - APS
We use molecular simulations to probe the local viscoelasticity of an entangled polymer melt
by tracking the motion of embedded nonsticky nanoparticles (NPs). As in conventional …

Equilibrium and non-equilibrium molecular dynamics approaches for the linear viscoelasticity of polymer melts

O Adeyemi, S Zhu, L Xi - Physics of Fluids, 2022 - pubs.aip.org
Viscoelastic properties of polymer melts are particularly challenging to compute due to the
intrinsic stress fluctuations in molecular dynamics (MD). We compared equilibrium and non …