Association and phase behavior of hydrophobically modified photoresponsive poly(acrylamide)s in the presence of ionic surfactant

1997 ◽  
Vol 275 (8) ◽  
pp. 760-768 ◽  
Author(s):  
C. Howley ◽  
D. G. Marangoni ◽  
J. C. T. Kwak
Keyword(s):  
Phase Behavior ◽  
Ionic Surfactant ◽  
Hydrophobically Modified ◽  
Poly Acrylamide

Measurement and modeling of the phase behavior of supercritical carbon dioxide+polydisperse non-ionic surfactant systems

2009 ◽  
Vol 287 (1) ◽  
pp. 7-14 ◽  
Author(s):  
Masashi Haruki ◽  
Yuichi Kaida ◽  
Kazuhiko Matsuura ◽  
Shin-ichi Kihara ◽  
Shigeki Takishima
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Phase Behavior ◽  
Ionic Surfactant ◽  
Surfactant Systems ◽  
Supercritical Carbon

scholarly journals Foams Stabilized with Nanoparticles for Gas Well Deliquification

2014 ◽  
Vol 16 (2) ◽  
pp. 114-117 ◽  
Author(s):  
Ewa Knapik ◽  
Jerzy Stopa ◽  
Anna Marzec
Keyword(s):  
Ionic Surfactant ◽  
Water Interface ◽  
Interface Tension ◽  
Gas Well ◽  
Hydrophobically Modified ◽  
Aqueous Foams ◽  
Air Water Interface ◽  
Nanoparticles Concentration ◽  
The Stability ◽  
The Cost

Abstract This study examined the interaction of solid nanoparticles and anionic and non-ionic surfactant at an air–water interface. Aqueous foams stabilized by silica nanoparticles in water with different levels of salinity were studied in detail. The stability of solid/surfactant dispersion was evaluated visually. Nanoparticles content impact and concentration of surfactant on the foamability, deliquification of foams and structure of wet foams were studied. It was found that the foamability of dispersion depends either on the surfactant concentration or on the nanoparticles concentration. The adsorption of hydrophobically modified silica particles and surfactants reduces the air/water interface tension. The results of the examinations showed that the use of nanoparticles allows to increase the efficiency of brine unloading even up to 20%. Surfactant particle and nanosilica present synergistic action, use of 4 wt% of nanoparticles allows to reduce surfactant consumption up to half. The cost of the preparation of the proposed dispersion is slightly higher, about 5%, compared to the sole surfactant.

Phase Behavior of an Ionic Surfactant with Mixed Monovalent/Polymeric Counterions†

2003 ◽  
Vol 107 (32) ◽  
pp. 8119-8130 ◽  
Author(s):  
Anna Svensson ◽  
Lennart Piculell ◽  
Lisa Karlsson ◽  
Bernard Cabane ◽  
Bo Jönsson
Keyword(s):  
Phase Behavior ◽  
Ionic Surfactant
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