Salt−Induced Cloud Point in Anionic Surfactant Solutions:  Role of the Headgroup and Additives

Langmuir ◽  
2002 ◽  
Vol 18 (11) ◽  
pp. 4205-4209 ◽  
Author(s):  
Sanjeev Kumar ◽  
Damyanti Sharma ◽  
Ziya Ahmad Khan ◽  
Kabir-ud-Din
Keyword(s):  
Cloud Point ◽  
Anionic Surfactant ◽  
Surfactant Solutions

Investigation of the Electrokinetic Properties of Paraffin Suspension. 2. In Cationic and Anionic Surfactant Solutions

Langmuir ◽  
2005 ◽  
Vol 21 (17) ◽  
pp. 7662-7671 ◽  
Author(s):  
Emil Chibowski ◽  
Agnieszka Wiacek ◽  
Lucyna Holysz ◽  
Konrad Terpilowski
Keyword(s):  
Anionic Surfactant ◽  
Electrokinetic Properties ◽  
Surfactant Solutions

Dual Role of Citric Acid as a Binding Inhibitor of Anionic Surfactant with Bivalent Cations and Co-Surfactant on Bio-Surfactant EOR

2018 ◽  
Author(s):  
Nao Miyazaki ◽  
Yuichi Sugai ◽  
Kyuro Sasaki ◽  
Yoshifumi Okamoto ◽  
Chencan Ouyang
Keyword(s):  
Citric Acid ◽  
Anionic Surfactant ◽  
Dual Role ◽  
Bivalent Cations

Surfactant Effects on Picloram Adsorption by Soils

Weed Science ◽  
1976 ◽  
Vol 24 (6) ◽  
pp. 549-552 ◽  
Author(s):  
J. D. Gaynor ◽  
V. V. Volk
Keyword(s):  
Organic Matter ◽  
Cationic Surfactant ◽  
Anionic Surfactant ◽  
Organic Matter Content ◽  
Clay Content ◽  
Surfactant Solution ◽  
Matter Content ◽  
Adsorption Sites ◽  
Surfactant Solutions ◽  
Extractable Al

The effects of soil organic matter, clay, extractable Al, cation exchange capacity, and pH on the adsorption of picloram (4-amino-3,5,6-trichloropicolinic acid) from aqueous and surfactant solutions were investigated. Linear adsorption isotherms for the soils were obtained with the Freundlich equation. Of the five soil properties investigated, Freundlich K values correlated with extractable Al and clay content. Picloram adsorption from aqueous solutions and from the non-ionic and anionic surfactant solutions was greater on the soils at pH 5 than at pH 7. The anionic surfactant competed with picloram for adsorption sites on the soils at pH 5. Picloram adsorption from solutions containing 0.1 and 1% cationic surfactant was greater than that from aqeuous and anionic and nonionic surfactant solutions. Picloram adsorption from the 10% cationic surfactant solution was similar on soils with pH 5 and 7 and increased with decreased organic matter content.

Aggregation behavior of tetraphenylporphyrin in aqueous surfactant solutions: Chiral premicellar J-aggregate formation

2015 ◽  
Vol 19 (07) ◽  
pp. 845-851 ◽  
Author(s):  
Margaret A. Gradova ◽  
Vladimir V. Artemov ◽  
Anton V. Lobanov
Keyword(s):  
Anionic Surfactant ◽  
Self Assembly ◽  
Photophysical Properties ◽  
Direct Synthesis ◽  
Aggregate Formation ◽  
Experimental Conditions ◽  
Aggregation State ◽  
Supramolecular Chirality ◽  
Surfactant Solutions ◽  
Surfactant Interactions

Porphyrin-surfactant interactions in aqueous solutions are known to result in the selfassembly of various supramolecular structures, including pigment-surfactant complexes, J- and H-aggregates, and solubilized dye species. Detailed studies on the mechanisms of the intermolecular interactions governing the above self-assembly processes allow to predict the aggregation state and hence, the photophysical properties of the dye-surfactant assemblies in order to perform a direct synthesis of the desired porphyrin-based nanostructures at the appropriate experimental conditions. This paper describes a novel example of the surfactant-induced J-aggregate formation from the diprotonated hydrophobic tetraphenylporphyrin species in submicellar aqueous anionic surfactant solutions. The above assemblies are characterized by a rod-like morphology and possess supramolecular chirality according to the CD measurements.

Role of carbonate electrolytes on interaction of quinolone drug with anionic surfactant at various temperatures: A conductometric study

2020 ◽  
Vol 34 (1) ◽  
Author(s):  
Shamim Mahbub ◽  
Mohayminul Islam ◽  
Abuzayed Masum ◽  
Parul Akter ◽  
Md. Anamul Hoque ◽  
...  
Keyword(s):  
Anionic Surfactant ◽  
Conductometric Study
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