Journal
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
Volume 37, Issue 12, Pages 1710-1717Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/01932691.2015.1135400
Keywords
Hydrophilicity; molecular dynamics simulation; salt tolerance; sulfobetaine-type zwitterionic surfactant; temperature sensitivity
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Funding
- National Major Scientific and Technological Special Project during the Twelfth Five-year Plan Period of China [2011ZX05011-004]
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Molecular dynamics simulations of interfacial properties of new sulfobetaine-type zwitterionic surfactants were performed using a united atomistic model, and a detailed analysis of hydrophilicity, temperature sensitivity, and salt resistance of surfactants was carried out. The new model was parameterized to reproduce the density and showed good agreement with experimental values. The results showed that the surfactant will not cease to be effective with the increase of the temperature from 300 to 373K but as it rises, the interfacial tension will have a reduction. This kind of surfactant can be proved to remain an activity at high concentration of monovalent and divalent cations. It has commendable salt tolerance.
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