[HTML][HTML] Single polymer dynamics for molecular rheology

CM Schroeder - Journal of Rheology, 2018 - pubs.aip.org
Single polymer dynamics offers a powerful approach to study molecular-level interactions
and dynamic microstructure in materials. Direct visualization of single polymer chains has …

Materials design of highly branched bottlebrush polymers at the intersection of modeling, synthesis, processing, and characterization

T Pan, S Dutta, Y Kamble, BB Patel… - Chemistry of …, 2022 - ACS Publications
Highly branched “bottlebrush” polymers are a class of macromolecules characterized by
side chains that are densely grafted from a backbone that is typically linear. Their unique …

Unexpected slow relaxation dynamics in pure ring polymers arise from intermolecular interactions

MQ Tu, O Davydovich, B Mei, PK Singh… - ACS Polymers …, 2023 - ACS Publications
Ring polymers have fascinated scientists for decades, but experimental progress has been
challenging due to the presence of linear chain contaminants that fundamentally alter …

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 …

Single polymer dynamics of topologically complex DNA

DJ Mai, CM Schroeder - Current Opinion in Colloid & Interface Science, 2016 - Elsevier
Single molecule studies allow for the direct observation of polymer dynamics in dilute and
concentrated solutions, thereby revealing polymer chain conformations and molecular sub …

Effect of molecular architecture on ring polymer dynamics in semidilute linear polymer solutions

Y Zhou, KW Hsiao, KE Regan, D Kong… - Nature …, 2019 - nature.com
Understanding the dynamics of ring polymers is a particularly challenging yet interesting
problem in soft materials. Despite recent progress, a complete understanding of the …

Direct observation of ring polymer dynamics in the flow-gradient plane of shear flow

MQ Tu, M Lee, RM Robertson-Anderson… - …, 2020 - ACS Publications
Ring polymers are a unique class of macromolecules that lack free ends and show
qualitatively different dynamics compared to linear chains. Despite recent progress, the …

Trefoil knot hydrodynamic delocalization on sheared ring polymers

M Liebetreu, M Ripoll, CN Likos - ACS Macro Letters, 2018 - ACS Publications
The behavior of unknotted and trefoil-knotted ring polymers under shear flow is here
examined by means of mesoscopic simulations. In contrast to most polymers, ring polymers …

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 …

[HTML][HTML] Dynamics and rheology of ring-linear blend semidilute solutions in extensional flow: Single molecule experiments

Y Zhou, CD Young, M Lee, S Banik, D Kong… - Journal of …, 2021 - pubs.aip.org
Ring polymers exhibit unique flow properties due to their closed chain topology. Despite
recent progress, we have not yet achieved a full understanding of the nonequilibrium flow …