Salt effects on the dilational viscoelasticity of surfactant adsorption layers

M Firouzi, VI Kovalchuk, G Loglio, R Miller - Current Opinion in Colloid & …, 2022‏ - Elsevier
Interfacial rheology of adsorbed layers of surfactants, demonstrating the response of the
interface to interfacial deformations, plays a key role in formation and stability of foams and …

Ultraviolet spectrophotometry of lignin revisited: exploring solvents with low harmfulness, lignin purity, hansen solubility parameter, and determination of phenolic …

J Ruwoldt, M Tanase-Opedal, K Syverud - ACS omega, 2022‏ - ACS Publications
In this article, we explored solvents with lower harmfulness than established systems for UV
spectrophotometry of lignin. By measuring the absorptivity in DMSO solvent at 280 nm, the …

Effect of divalent and monovalent salts on interfacial dilational rheology of sodium dodecylbenzene sulfonate solutions

P Amani, M Firouzi - Colloids and Interfaces, 2022‏ - mdpi.com
This study presents the equilibrium surface tension (ST), critical micelle concentration (CMC)
and the dilational viscoelasticity of sodium dodecylbenzene sulfonate (SDBS)-adsorbed …

Sacrificial hydrogen bonds enhance the performance of covalently crosslinked composite films derived from soy protein isolate and dialdehyde starch

R Tian, Y Zhao, Y Fu, S Yang, L Jiang, X Sui - Food Chemistry, 2024‏ - Elsevier
Soy protein films have the advantage of being eco-friendly and renewable, but their practical
applications are hindered by the mechanical properties. The exceptional tensile strength …

Surface Phenomena with the Participation of Sulfite Lignin under Pressure Leaching of Sulfide Materials

T Lugovitskaya, D Rogozhnikov - Langmuir, 2023‏ - ACS Publications
Searching for surfactants which can eliminate the occluding effect of molten elemental sulfur
formed in the process of leaching sulfide ores under pressure (autoclave leaching) is …

[HTML][HTML] Characterization and assessment of wax and wax inhibitors systems in microfluidic oil-in-water coalescence experiments

M Dudek, J Ruwoldt, G Øye - Colloids and Surfaces A: Physicochemical …, 2022‏ - Elsevier
During produced water treatment, one of the key underlying phenomena affecting
separation performance is coalescence between oil droplets. These processes can be …

[HTML][HTML] Carboxylation of lignin by oxidation with hydrogen peroxide and its use as emulsion stabilizer

J Ruwoldt, R Skunde, M Tanase-Opedal… - Industrial Crops and …, 2025‏ - Elsevier
This article studied the carboxylation of technical lignin and subsequent use as emulsion
stabilizer. Oxidation was conducted with hydrogen peroxide under alkaline conditions. As …

Interfacial Adsorption of Oil-Soluble Kraft Lignin and Stabilization of Water-in-Oil Emulsions

J Ruwoldt, B Handiso, M Øksnes Dalheim, A Solberg… - Langmuir, 2024‏ - ACS Publications
In this paper, the potential of esterified Kraft lignin as a novel oil-soluble surfactant was
examined. The lignin was chemically modified by esterification with lauric or stearic acid …

Lignosulfonate-based deflocculant and its derivatives for water-based drilling mud: A review

SI Okwaraku, M Norddin, JO Oseh… - International Journal of …, 2025‏ - Elsevier
Chromium-based lignosulfonate (CrLS) deflocculants that are commonly used in water-
based drilling muds (WBDMs) to deflocculate bentonites under high temperature (HT), high …