Aggregation of hydrophobically modified chitosan in solution and at the air–water interface

2006 ◽  
Vol 102 (2) ◽  
pp. 1968-1973 ◽  
Author(s):  
Yan-Yan Li ◽  
Xi-Guang Chen ◽  
Liang-Min Yu ◽  
Shi-Xi Wang ◽  
Gang-Zheng Sun ◽  
...  
Keyword(s):  
Water Interface ◽  
Modified Chitosan ◽  
Hydrophobically Modified ◽  
Air Water Interface

Adsorption of Hydrophobically Modified Poly(acrylic acid) Sodium Salt at the Air/Water Interface by Combined Surface Tension and X-ray Reflectivity Measurements

Langmuir ◽  
1999 ◽  
Vol 15 (6) ◽  
pp. 2112-2119 ◽  
Author(s):  
Frédéric Millet ◽  
Michael Nedyalkov ◽  
Benjamin Renard ◽  
Patrick Perrin ◽  
Françoise Lafuma ◽  
...  
Keyword(s):  
Surface Tension ◽  
Acrylic Acid ◽  
Sodium Salt ◽  
Water Interface ◽  
X Ray ◽  
Hydrophobically Modified ◽  
Acid Sodium Salt ◽  
Air Water Interface ◽  
Poly Acrylic Acid

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.

Aggregation of hydrophobically modified polysaccharides in solution and at the air–water interface

2005 ◽  
Vol 281 (2) ◽  
pp. 316-324 ◽  
Author(s):  
Widad Henni ◽  
Michel Deyme ◽  
Michel Stchakovsky ◽  
Didier LeCerf ◽  
Luc Picton ◽  
...  
Keyword(s):  
Water Interface ◽  
Hydrophobically Modified ◽  
Air Water Interface

scholarly journals Adsorption dynamics of hydrophobically modified polymers at an air-water interface

2018 ◽  
Vol 41 (9) ◽  
Author(s):  
C. Trégouët ◽  
A. Mikhailovskaya ◽  
T. Salez ◽  
N. Pantoustier ◽  
P. Perrin ◽  
...  
Keyword(s):  
Water Interface ◽  
Adsorption Dynamics ◽  
Hydrophobically Modified ◽  
Modified Polymers ◽  
Hydrophobically Modified Polymers ◽  
Air Water Interface

Surface Rheology of Hydrophobically Modified PEG Polymers Associating with a Phospholipid Monolayer at the Air−Water Interface

Langmuir ◽  
2008 ◽  
Vol 24 (8) ◽  
pp. 4056-4064 ◽  
Author(s):  
Debra T. Auguste ◽  
John Kirkwood ◽  
Joachim Kohn ◽  
Gerald G. Fuller ◽  
Robert K. Prud'homme
Keyword(s):  
Water Interface ◽  
Surface Rheology ◽  
Phospholipid Monolayer ◽  
Hydrophobically Modified ◽  
Air Water Interface
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