A5004755063- Surfactants and Colloidal Systems
- Photochemistry and Electron Transfer Studies
- Thermodynamic properties of mixtures
- Electrostatics and Colloid Interactions
- Advanced Polymer Synthesis and Characterization
- Chemical and Physical Properties in Aqueous Solutions
- Environmental Chemistry and Analysis
- Analytical Chemistry and Chromatography
- Enhanced Oil Recovery Techniques
- Ionic liquids properties and applications
- Hydraulic Fracturing and Reservoir Analysis
- Protein Interaction Studies and Fluorescence Analysis
Yangtze University
2015-2024
Dalian University of Technology
2020-2021
Dalian University
2020-2021
The critical micellar concentrations (cmc's) of sodium dodecyldiaminosulfonate amphoteric surfactant (C12AS) in aqueous solutions containing seven inorganic salts with chloride anions were measured by tensiometry using the Wilhelmy plate method at 25 °C. mathematical relationship between cmc C12AS and concentration an salt solution was established. effect on micellization also discussed. results show that dependence within range effective investigated this experiment can be well described...
The interaction behavior and the process of mixed micellization for binary mixtures an amino sulfonate amphoteric surfactant sodium 3-(N-dodecyl ethylenediamino)-2-hydropropyl (C12AS) a cationic octadecyltrimethylammonium bromide (OTAB) in aqueous solution NaCl (0.250 M) at 313.15 K were investigated using both tensiometry UV–vis spectrometry pyrene as probe. critical micelle concentration (cmc) C12AS/OTAB determined by two techniques. Based on regular theory, pseudophase separation model,...
In aqueous solution at a pH of about 6.5, the micellization binary mixtures constituted by sodium n-dodecyl diamine sulfonate (C12AS) and three octylphenol polyoxyethylene ether (OP-n) with different numbers oxyethylene glycol (n), including OP-4, OP-7, OP-10, was examined UV–vis spectroscopy method. The critical micelle concentration (cmc) values were determined method tensiometric experimental data analyzed according to various mixing thermodynamic models within framework pseudophase...
The micellization behaviors of binary mixtures constituted by an amphoteric surfactant, sodium 3-(N-dodecyl ethylenediamino)-2-hydropropyl sulfonate, and a nonionic surfactant octylphenol polyoxyethylene ether (10), OP-10, in aqueous solutions containing seven inorganic salts were investigated. values mixed critical micelle concentration (cmcM) determined both the tensiometry UV–vis spectroscopy method using pyrene as probe. dependence cmcM on salt was established. According to different...
Abstract The compatibility of surfactants, a series alkyl amino sulfonate containing various the length chain (dodecyl, tetradecyl, hexadecyl and octadecyl, developed in our laboratory), with formation water matching Xinjiang Oil Field reservoir dynamic interfacial tensions (DIT) behaviors between crude oil for number alkaline flooding systems were measured. These surfactants are found to be well compatible up 0.10 g L −1 surfactant concentration, especially Dodec-AS Tetradec-AS show good...
A molecular‐thermodynamic approach was adopted to predict the value of mixed critical micelle concentration (cmc) for binary surfactant mixtures constituted by an amino sulfonate amphoteric surfactant, sodium 3‐(N‐dodecyl ethylenediamino)‐2‐hydropropyl (abbr. C12AS), and a nonionic octylphenol polyethylene ether (OP‐n, where n denotes average number oxyethylene glycol ether). In this investigation, considering two positive charges on hydrophilic group C12AS, which is unlike conventional...