Flory-type theories of polymer chains under different external stimuli

YA Budkov, MG Kiselev - Journal of Physics: Condensed Matter, 2017 - iopscience.iop.org
In this Review, we present a critical analysis of various applications of the Flory-type theories
to a theoretical description of the conformational behavior of single polymer chains in dilute …

Unifying weak and strong charge correlations within the random phase approximation: Polyampholytes of various sequences

AM Rumyantsev, A Johner, MV Tirrell… - Macromolecules, 2022 - ACS Publications
We consider the problem of charge correlations in self-coacervate phases of
polyampholytes and disordered proteins with different monomer sequences. An analytical …

[HTML][HTML] Electrostatic correlations and the polyelectrolyte self energy

K Shen, ZG Wang - The Journal of chemical physics, 2017 - pubs.aip.org
We address the effects of chain connectivity on electrostaticfluctuations in polyelectrolyte
solutions using a field-theoretic, renormalizedGaussian fluctuation (RGF) theory. As in …

Salting-out and salting-in of polyelectrolyte solutions: A liquid-state theory study

P Zhang, NM Alsaifi, J Wu, ZG Wang - Macromolecules, 2016 - ACS Publications
We study the phase behavior of polyelectrolyte (PE) solutions with salt using a simple liquid-
state (LS) theory. This LS theory accounts for hard-core excluded volume repulsion by the …

Reentrant Condensation of Polyelectrolytes Induced by Diluted Multivalent Salts: The Role of Electrostatic Gluonic Effects

H Yong - Biomacromolecules, 2024 - ACS Publications
We explore the reentrant condensation of polyelectrolytes triggered by multivalent salts,
whose phase-transition mechanism remains under debate. We propose a theory to study the …

Conformational Behavior of a Single Dipolar Chain under Stretching Force

TY Merzliakova, YD Gordievskaya… - Macromolecules, 2023 - ACS Publications
The stretching of a single dipolar chain by a tensile force acting on the chain end is studied
using molecular dynamics simulations and theoretical considerations. In both theory and …

Scaling theory of neutral sequence-specific polyampholytes

AM Rumyantsev, NE Jackson, A Johner… - …, 2021 - ACS Publications
The primary sequence of charged monomers in a polyampholyte has a profound effect on its
conformational properties. In this work, theory and simulations are used to predict how the …

Explicit description of complexation between oppositely charged polyelectrolytes as an advantage of the random phase approximation over the scaling approach

AM Rumyantsev, II Potemkin - Physical Chemistry Chemical Physics, 2017 - pubs.rsc.org
A polyelectrolyte complex (PEC) of oppositely charged linear chains is considered within the
Random Phase Approximation (RPA). We study the salt-free case and use the continuous …

The conformational phase diagram of charged polymers in the presence of attractive bridging crowders

K Tripathi, H Garg, R Rajesh… - The Journal of Chemical …, 2023 - pubs.aip.org
Using extensive molecular dynamics simulations, we obtain the conformational phase
diagram of a charged polymer in the presence of oppositely charged counterions and …

The conformational phase diagram of neutral polymers in the presence of attractive crowders

H Garg, R Rajesh, S Vemparala - The Journal of Chemical Physics, 2023 - pubs.aip.org
Extensive coarse-grained molecular dynamics simulations are performed to investigate the
conformational phase diagram of a neutral polymer in the presence of attractive crowders …