Dilute polyelectrolyte solutions: recent progress and open questions

CG Lopez, A Matsumoto, AQ Shen - Soft Matter, 2024 - pubs.rsc.org
Polyelectrolytes are a class of polymers possessing ionic groups on their repeating units.
Since counterions can dissociate from the polymer backbone, polyelectrolyte chains are …

Salt effect on the viscosity of semidilute polyelectrolyte solutions: sodium polystyrenesulfonate

A Gulati, M Jacobs, CG Lopez, AV Dobrynin - Macromolecules, 2023 - ACS Publications
We studied the viscosity of semidilute aqueous solutions of sodium polystyrenesulfonate as
a function of polymer and salt concentrations. The viscosity data were quantified by applying …

Advancements and Applications of Conjugated Polyelectrolytes and Conjugated Oligoelectrolytes in Bioanalytical and Electrochemical Contexts

SJ Cox-Vázquez, B Shakir, O Medrano, D Shah… - JACS Au, 2024 - ACS Publications
In the past decade, conjugated oligoelectrolytes (COEs) and conjugated polyelectrolytes
(CPEs) have emerged at the forefront of active materials in bioanalytical and …

Extreme dependence of dynamics on concentration in highly crowded polyelectrolyte solutions

H Landfield, N Kalamaris, M Wang - Science Advances, 2024 - science.org
Charge-carrying species, such as polyelectrolytes, are vital to natural and synthetic
processes that rely on their dynamic behavior. Through single-particle tracking techniques …

Solvent properties influence the rheology and pinching dynamics of polyelectrolyte solutions: Thickening the pot with glycerol and cellulose gum

LN Jimenez, CDV Martínez Narváez, V Sharma - Macromolecules, 2022 - ACS Publications
Charge-bearing groups that ionize in solution influence the macromolecular conformations,
interactions, and dynamics of polyelectrolytes. The rich and complex shear rheological …

Increasing the molecular weight of conjugated polyelectrolytes improves the electrochemical stability of their pseudocapacitor gels

RJ Vázquez, G Quek, SR McCuskey… - Journal of Materials …, 2022 - pubs.rsc.org
Conjugated polyelectrolyte (CPE) hydrogels synergize the electrical properties of redox-
active polymers with the physical properties of hydrogels. Of particular relevance is their …

Determining the molecular weight of polyelectrolytes using the rouse scaling theory for salt-free semidilute unentangled solutions

A Han, VVS Uppala, D Parisi, C George… - …, 2022 - ACS Publications
Chain dynamics in the semidilute unentangled regime can be used to determine the
molecular weight of polyelectrolytes based on the Rouse scaling model. Four methods …

Structure and rheology of carboxymethylcellulose in polar solvent mixtures

C Hou, T Watanabe, CG Lopez, W Richtering - Carbohydrate Polymers, 2025 - Elsevier
We study the conformational, conductometric and rheological properties of semiflexible
polyelectrolyte carboxymethyl cellulose in mixtures of water and three non-solvents (ethanol …

Microrheological approach for probing the entanglement properties of polyelectrolyte solutions

A Matsumoto, C Zhang, F Scheffold… - ACS Macro Letters, 2021 - ACS Publications
The entanglement dynamics and viscoelasticity of polyelectrolyte solutions remain active
research topics. Previous studies have reported conflicting experimental results when …

Charged polymers: From polyelectrolyte solutions to polyelectrolyte complexes

R Sayko, Y Tian, H Liang, AV Dobrynin - Macromolecules, 2021 - ACS Publications
Coarse-grained molecular dynamics simulations, random phase approximation (RPA)
approach, and scaling analysis are used to study static and dynamic properties of …