Systematic investigation of ionic liquid-type gemini surfactants and their abnormal salt effects on the interfacial tension of a water/model oil system

The effect of macromolecular structure on the rheology and surface properties of amphiphilic random polystyrene-r-poly(meth)acrylate copolymers prepared by RDRP

“…This might be explained by the different counter ion. 44,45 Measurements of fluorescence were carried out on the polymer solutions neutralized in the two different ways in order to estimate the CMC values (Fig. 8) of the polymer solutions.…”

Scrutinizing Self-Assembly, Surface Activity and Aggregation Behavior of Mixtures of Imidazolium Based Ionic Liquids and Surfactants: A Comprehensive Review

“…In the case of CSAILs, the long hydrophobic chain is present in the cationic part of SAIL, giving rise to similar properties like conventional cationic surfactants (Zhao and Zheng, 2011 ; Gu et al, 2013 ; Cognigni et al, 2016 ; Zhao et al, 2017 ). CSAILs can be subdivided into two types namely dicationic surface-active ILs (DCSAILs) and Gemini cationic surface-active ILs (GCSAILs) (Baltazar et al, 2007 ; Ao et al, 2008 ; Khan et al, 2017 ; Ziembowicz et al, 2017 ; Zhou et al, 2018 ). Similarly, if the long hydrophobic chain is present in the anionic part of SAIL exhibiting the properties similar to anionic surfactants, then they will be considered as ASAILs (Jiao et al, 2012 , 2013b ; Srinivasa Rao et al, 2014 ).…”

Effects of Divalent Salts on the Interfacial Activity of the Mixed Surfactants at the Water/Model Oil Interface

“…Due to the amphiphilic structure, the surfactant can effectively reduce the water/oil interfacial tension (IFT) and change the formation wettability, which are the basic mechanisms of surfactant flooding in chemical enhanced oil recovery (EOR) (Zhang et al, ). Focused on the properties of reservoir water (salinity, temperature, viscosity, and so on), many groups modified the surfactant structures to develop their performances in EOR (Ahmadi and Shadizadeh, ; Babu et al, ; Chaturvedi et al, ; Cui et al, ; Hezave et al, ; Jia et al, ; Kamal, ; Kumar and Mandal, , ; Nguele et al, ; Pal et al, ; Pillai et al, , ; Rodríguez‐Escontrela et al, , b; Saxena et al, ; Zendehboudi et al, ; Zheng et al, ; Zhou et al, , ). Cui et al synthesized zwitterionic surfactants with double long alkyl chains to achieve the optimal hydrophile–lipophile balance for the remarkable IFT reduction (Cui et al, ).…”

“…Cui et al synthesized zwitterionic surfactants with double long alkyl chains to achieve the optimal hydrophile–lipophile balance for the remarkable IFT reduction (Cui et al, ). Soto's and our group investigated the interfacial activity of surface‐active ionic liquids at the water/oil interface (Babu et al, ; Rodríguez‐Escontrela et al, ; Zhou et al, , ). Mandal et al evaluated the performances of various surfactants (anionic, nonionic, zwitterionic, and Gemini surfactants) for their potential application in EOR (Chaturvedi et al, ; Kumar and Mandal, , ; Pal et al, ; Pillai et al, , ; Saxena et al, ).…”