Properties and applications of amphoteric surfactant: A concise review
Amphoteric surfactants have long hydrophobic hydrocarbon chain and hydrophilic positive
as well as negative charged center connected with each other by a spacer group. Thus, this …
as well as negative charged center connected with each other by a spacer group. Thus, this …
Advances in CO2-switchable surfactants towards the fabrication and application of responsive colloids
CO 2-switchable surfactants have selective surface-activity, which can be activated or
deactivated either by adding or removing CO 2 from the solution. This feature enables us to …
deactivated either by adding or removing CO 2 from the solution. This feature enables us to …
Adsorption mechanisms of a novel cationic gemini surfactant onto different rocks
The need to reduce surfactant adsorption on rock surfaces has been a difficult task in
chemical enhanced oil recovery, as it directly impacts the economics of the project. This …
chemical enhanced oil recovery, as it directly impacts the economics of the project. This …
[HTML][HTML] Role of counterions and nature of spacer on foaming properties of novel polyoxyethylene cationic gemini surfactants
Application of foam in various upstream operations, such as in enhanced oil recovery, has
gained significant attention in recent years. A good foaming agent should generate a stable …
gained significant attention in recent years. A good foaming agent should generate a stable …
[HTML][HTML] Impact of spacer nature and counter ions on rheological behavior of novel polymer-cationic gemini surfactant systems at high temperature
Compatible surfactant-polymer (SP) hybrid systems at high temperature are in great demand
due to the necessity of chemical flooding in high-temperature oil reservoirs. The rheological …
due to the necessity of chemical flooding in high-temperature oil reservoirs. The rheological …
Oil/water interfacial tension in the presence of novel polyoxyethylene cationic gemini surfactants: impact of spacer length, unsaturation, and aromaticity
This study was aimed at understanding how the interfacial tension (IFT) between novel
ethoxylated cationic gemini surfactants and oil is affected by various spacer types. These …
ethoxylated cationic gemini surfactants and oil is affected by various spacer types. These …
Preparation and performance evaluation of sulfate-quaternary ammonium Gemini surfactant
Y Gu, M Zhou, X Wang, H Tu, Y Yang, Y Zhao - Journal of Molecular Liquids, 2021 - Elsevier
Sulfate-quaternary ammonium amphoteric Gemini surfactants with hydrophobic chains (C
12 ZGS, C 14 ZGS and C 16 ZGS) were prepared using formic acid, formaldehyde, long …
12 ZGS, C 14 ZGS and C 16 ZGS) were prepared using formic acid, formaldehyde, long …
Development of polyoxyethylene zwitterionic surfactants for high‐salinity high‐temperature reservoirs
Substantial efforts are underway to improve the recovery factor from existing oil reserves to
meet the ever‐growing global oil demand. Surfactants are known to increase oil recovery …
meet the ever‐growing global oil demand. Surfactants are known to increase oil recovery …
[HTML][HTML] Soybean-Oil-Based CO2-Switchable Surfactants with Multiple Heads
H Huang, X Huang, H Quan, X Su - Molecules, 2021 - mdpi.com
Oligomeric surfactants display the novel properties of low surface activity, low critical
micellar concentration and enhanced viscosity, but no CO2 switchable oligomeric …
micellar concentration and enhanced viscosity, but no CO2 switchable oligomeric …
Synthesis and evaluation of novel amido-amine cationic gemini surfactants containing flexible and rigid spacers
The invention concerns synthesized amido-amine-based cat ionic gemini surfactants with
flexible and rigid spacers and different hydrophobic. These gemini surfactants were pre …
flexible and rigid spacers and different hydrophobic. These gemini surfactants were pre …