Role of cohesive energy in glass formation of polymers with and without bending constraints

WS Xu, JF Douglas, X Xu - Macromolecules, 2020 - ACS Publications
The influence of the monomer chemical structure and architecture on polymer glass
formation has been long appreciated to be dominated by two principal molecular factors …

Molecular dynamics investigation of the pressure dependence of glass formation in a charged polymer melt

Z Yang, X Xu, JF Douglas, WS Xu - Macromolecules, 2023 - ACS Publications
Most commodity polymers are derived from petroleum raw materials, and correspondingly,
these materials are normally uncharged and nonpolar, attributes that make this class of …

Role of torsional potential in chain conformation, thermodynamics, and glass formation of simulated polybutadiene melts

F Demydiuk, M Solar, H Meyer, O Benzerara… - The Journal of …, 2022 - pubs.aip.org
For polymer chains, the torsional potential is an important intramolecular energy influencing
chain flexibility and segmental dynamics. Through molecular dynamics simulations of an …

Shear modulus and shear-stress fluctuations in polymer glasses

I Kriuchevskyi, JP Wittmer, H Meyer, J Baschnagel - Physical Review Letters, 2017 - APS
Using molecular dynamics simulation of a standard coarse-grained polymer glass model,
we investigate by means of the stress-fluctuation formalism the shear modulus μ as a …

Shear-stress fluctuations and relaxation in polymer glasses

I Kriuchevskyi, JP Wittmer, H Meyer, O Benzerara… - Physical Review E, 2018 - APS
We investigate by means of molecular dynamics simulation a coarse-grained polymer glass
model focusing on (quasistatic and dynamical) shear-stress fluctuations as a function of …

Translocation of Hydrophobic Polyelectrolytes under Electrical Field: Molecular Dynamics Study

S Kim, NK Lee, MK Chae, A Johner, JM Park - Polymers, 2023 - mdpi.com
We studied the translocation of polyelectrolyte (PE) chains driven by an electric field through
a pore by means of molecular dynamics simulations of a coarse-grained HP model …