Topology Matters: Conformation and Microscopic Dynamics of Ring Polymers

M Kruteva, J Allgaier, D Richter - Macromolecules, 2023 - ACS Publications
Ring polymers have fascinated theorists, simulators, and experimentalists as they are the
simplest polymer without ends, giving rise to important topology related properties. We …

Nonlinear rheometry of entangled polymeric rings and ring-linear blends

D Parisi, M Kaliva, S Costanzo, Q Huang, PJ Lutz… - Journal of …, 2021 - pubs.aip.org
We present a comprehensive experimental rheological dataset for purified entangled ring
polystyrenes and their blends with linear chains in nonlinear shear and elongation. In …

Linear viscoelastic properties of putative cyclic polymers synthesized by reversible radical recombination polymerization (R3P)

D Chen, K Molnar, H Kim, CA Helfer, G Kaszas… - …, 2023 - ACS Publications
Linear viscoelastic properties in both melt and solution states are reported for a series of
poly (3, 6-dioxa-1, 8-octanedithiol)(polyDODT) made by reversible radical recombination …

Revisiting the viscosity of moderately entangled ring polymer melts

K Peponaki, DG Tsalikis, N Patelis, G Sakellariou… - …, 2024 - ACS Publications
The absence of free ends is known to impart unique properties in ring polymers. Using
critically fractionated samples (polystyrenes, polyisoprenes and polybutadienes), that are as …

[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 …

Crazing reveals an entanglement network in glassy ring polymers

J Wang, T Ge - Macromolecules, 2021 - ACS Publications
Molecular simulations are used to show that an entanglement network exists in
nonconcatenated ring polymers of sufficiently long contour length when they are cooled …

Capillary filling of polymer chains in nanopores

J Zhang, J Lei, W Tian, G Zhang, G Floudas… - …, 2023 - ACS Publications
We performed molecular dynamics simulations with a coarse-grained model to investigate
the capillary filling dynamics of polymer chains in nanopores. Short chains fill slower than …

Size and diffusivity of polymer rings in linear polymer matrices: The key role of threading events

DG Tsalikis, VG Mavrantzas - Macromolecules, 2020 - ACS Publications
Long molecular dynamics simulations are performed for dilute solutions of ring poly
(ethylene oxide)(PEO) molecules in matrices of linear PEO chains where we systematically …

Individual contributions of adsorbed and free chains to microscopic dynamics of unentangled poly (ethylene glycol)/silica nanocomposite melts and the important role …

EN Skountzos, DG Tsalikis, PS Stephanou… - …, 2021 - ACS Publications
Molecular dynamics simulations and Rouse theory suitably adapted for polymer chains
adsorbed by one or both of their ends are combined to offer a quantitative description of the …

Size and dynamics of a tracer ring polymer embedded in a linear polymer chain melt matrix

J Mo, J Wang, Z Wang, Y Lu, L An - Macromolecules, 2022 - ACS Publications
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 …