Improved foam stability through the combination of silica nanoparticle and thixotropic polymer: An experimental study

X Li, C Pu, X Chen - Journal of Molecular Liquids, 2022 - Elsevier
Foam flooding serves as one of widely-used enhanced oil recovery (EOR) techniques for
developing oil and gas resources. However, the foam is a thermodynamically unstable …

An anionic shell shields a cationic core allowing for uptake and release of polyelectrolytes within core–shell responsive microgels

APH Gelissen, A Scotti, SK Turnhoff, C Janssen… - Soft Matter, 2018 - pubs.rsc.org
To realize carriers for drug delivery, cationic containers are required for anionic guests.
Nevertheless, the toxicity of cationic carriers limits their practical use. In this study, we …

Electrostatic expansion of polyelectrolyte microgels: Effect of solvent quality and added salt

CG Lopez, T Lohmeier, JE Wong… - Journal of colloid and …, 2020 - Elsevier
We report dynamic light scattering data for a PNIPAM based microgel copolymerised with
2% ionic groups. The hydrodynamic radius is measured as a function of temperature (which …

Temperature and Salt Responsive Amphoteric Nanogels Based on N-Isopropylacrylamide, 2-Acrylamido-2-methyl-1-propanesulfonic Acid Sodium Salt and (3 …

AY Ayazbayeva, AV Shakhvorostov, IS Gussenov… - Nanomaterials, 2022 - mdpi.com
Polyampholyte nanogels based on N-isopropylacrylamide (NIPAM),(3-acrylamidopropyl)
trimethylammonium chloride (APTAC) and 2-acrylamido-2-methyl-1-propanesulfonic acid …

Monte Carlo simulations of weak polyampholyte microgels: pH-dependence of conformation and ionization

C Hofzumahaus, C Strauch, S Schneider - Soft Matter, 2021 - pubs.rsc.org
We performed Metropolis Monte Carlo simulations to investigate the impact of varying acid
and base dissociation constants on the pH-dependent ionization and conformation of weak …

Aqueous swelling of zwitterionic poly (sulfobetaine methacrylate) brushes in the presence of ionic surfactants

Z Yang, S Zhang, VV Tarabara, ML Bruening - Macromolecules, 2018 - ACS Publications
Superhydrophilic polyzwitterionic brushes resist fouling, but free ions may screen zwitterion
charges and alter brush hydration. This work examines the effect of ionic surfactants on …

Intramicrogel complexation of oppositely charged compartments as a route to quasi-hollow structures

AA Rudov, APH Gelissen, G Lotze, A Schmid… - …, 2017 - ACS Publications
We have predicted using computer simulations and have detected with SAXS
measurements that pH-sensitive core–shell polyampholyte microgels can form a dense …

Synthesis and solution behaviour of stimuli-sensitive zwitterionic microgels

AJ Schmid, R Schroeder, T Eckert, A Radulescu… - Colloid and Polymer …, 2015 - Springer
In this study, we have synthesised small aqueous zwitterionic microgels as model systems
for amphoteric microgels. Zwitterions exhibit special behaviour due to defined distance …

Based on tannic acid and thermoresponsive microgels design a simple and high-efficiency multifunctional antibacterial coating

Y Liu, S Mao, L Zhu, S Chen, C Wu - European Polymer Journal, 2021 - Elsevier
Abstract Development of a simple and efficiency antibacterial surface coating, to prevent
bacteria attachment and colonization, is critically important for bio-medical application and …

Synthesis of a novel flocculant with dimethylamino propylmethacrylamide and polyether and its flocculation performance

J He, M Duan, S Zhou, L Zhao, Z Luo… - Journal of Dispersion …, 2024 - Taylor & Francis
The widespread use of polymer flooding has resulted in a large number of produced liquids
consisting of crude oil emulsions and oily wastewater. Efficient flocculants are required to …