Polyelectrolyte - Wikipedia
Polyelectrolytes have been used in the formation of new types of materials known as polyelectrolyte multilayers ('PEMs). These thin films are constructed using a layer-by-layer ( LbL ) deposition technique.
Enhanced oil recovery by sacrificing polyelectrolyte to reduce ...
2022年11月2日 · The adsorption of surfactants on the oil reservoir rock surface, and the recovery process of surfactants after adding polyelectrolyte. The optimal polyelectrolyte concentration and chain length can be calculated by CDFT to solve the …
Magnetic-driving giant multilayer polyelectrolyte microcapsules …
2023年5月5日 · The SFe@ (PAH/PSS) 3-PND were capable to intelligently capture oil and carry oil droplets based on hydrophobic interaction driven by magnetic control, which significantly enhanced the oil recovery efficiency.
Polyelectrolyte–nanocomposite for enhanced oil recovery: …
2021年11月6日 · A natural state polyelectrolyte, gum arabic (GA) and its nanocomposite were evaluated for enhanced oil recovery based on the mechanisms responsible for oil displacement, the magnitude of incremental oil recovery and polymer nature.
Polyelectrolyte polymers—Types, forms, and function
2022年1月1日 · In this chapter we will describe and discuss the major synthetic polyelectrolyte chemistries that are available on the commercial scale along with their forms and a brief summary of the varied industrial applications.
Natural polyelectrolyte-functionalized superhydrophilic and ...
2024年1月24日 · As the amount of oily wastewater discharged from industrial and domestic sources increases, materials used for oil/water separation have received widespread research attention in recent years. However, many reported separation materials with special wetting properties require complex and environmentally unfriendly preparation processes.
A novel zwitterionic polyelectrolyte grafted PVDF membrane …
Oil–water separation is a worldwide challenge because of increasingly oily wastewater, as well as frequent oil spill accidents. We report in this work the fabrication of a zwitterionic polyelectrolyte brush (poly(3-(N-2-methacryloxyethyl-N,N-dimethyl) ammonatopropanesultone), abbreviated as PMAPS)-grafted po
Polyelectrolyte complex gels used for CO2 absorption
2023年10月20日 · Polymer gels have shown application potential in minimizing gas channeling during CO 2 enhanced oil recovery and storage processes, but the pumping pressure of preformed gels was too high, and the in-situ cross-linking in reservoirs was uncontrollable.
Polymer Surfactant Interactions in Oil Enhanced Recovery Processes
2021年5月13日 · To date, it is recommended to use polymers and surfactants that do not interact with each other to avoid clogging the wells. We show here that this precaution is not necessary and that in some cases, the use of interacting polymer and surfactant systems can even be an advantage for oil recovery.
Origin of Underwater Oil‐Repellence in Polyelectrolyte Brush Surfaces ...
2020年9月27日 · When submerged under water, polyelectrolyte brush surfaces become highly oil-repellent. This is due to the ability of the charged moieties on the polymer backbone to retain strong hydration shells.
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