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 …

Fluorescence correlation spectroscopy in polymer science

D Wöll - Rsc Advances, 2014 - pubs.rsc.org
Fluorescence correlation spectroscopy (FCS) is a well-established technique for studying
dynamic processes and interactions with minimal invasion into the corresponding system …

Electrostatic and hydrophobic interactions in NaCMC aqueous solutions: Effect of degree of substitution

CG Lopez, RH Colby, JT Cabral - Macromolecules, 2018 - ACS Publications
The rheology of water-soluble polyelectrolytes at intermediate and high concentrations is
controlled by entanglement, hydrophobic, and electrostatic interactions, whose influences …

Effect of Relative Strength of Two Networks on the Internal Fracture Process of Double Network Hydrogels As Revealed by in Situ Small-Angle X-ray Scattering

K Fukao, T Nakajima, T Nonoyama, T Kurokawa… - …, 2020 - ACS Publications
Double network hydrogels (DN gels) exhibit extraordinarily high strength and toughness by
interplay of the two contrasting networks: the rigid, brittle network serves as a sacrificial bond …

How do polymers stretch in capillary-driven extensional flows?

V Calabrese, AQ Shen, SJ Haward - Macromolecules, 2024 - ACS Publications
Measurements of the capillary-driven thinning and breakup of fluid filaments are widely used
to extract the extensional rheological properties of complex materials. For viscoelastic fluids …

Entanglement of semiflexible polyelectrolytes: Crossover concentrations and entanglement density of sodium carboxymethyl cellulose

CG Lopez - Journal of Rheology, 2020 - pubs.aip.org
Viscosity data for aqueous solutions of sodium carboxymethyl cellulose (NaCMC) as a
function of polymer concentration (c), added salt concentration (c S), and degree of …

Chiral lyotropic chromonic liquid crystals composed of disodium cromoglycate doped with water-soluble chiral additives

T Shirai, M Shuai, K Nakamura, A Yamaguchi, Y Naka… - Soft Matter, 2018 - pubs.rsc.org
We investigated the pitches of cholesteric liquid crystals prepared by mixing disodium
cromoglycate (DSCG) in water with 5 different water-soluble chiral additives. The …

Extensibility governs the flow-induced alignment of polymers and rod-like colloids

V Calabrese, T Porto Santos, CG Lopez… - Physical Review …, 2024 - APS
Polymers and rod-like colloids (PaRC) adopt a favorable orientation under sufficiently strong
flows. However, how the flow kinematics affect the alignment of such nanostructures …

Screening lengths and osmotic compressibility of flexible polyelectrolytes in excess salt solutions

CG Lopez, F Horkay, M Mussel, RL Jones… - Soft matter, 2020 - pubs.rsc.org
We report results of small angle neutron scattering measurements made on sodium
polystyrene sulfonate in aqueous salt solutions. The correlation length (ξ) and osmotic …

M esoscopic structure of pectin in solution

K Alba, RJ Bingham, V Kontogiorgos - Biopolymers, 2017 - Wiley Online Library
Mesoscopic structure of pectin with different molecular characteristics was investigated by
means of small angle X‐ray scattering (SAXS), electrokinetic measurements and data …