Author(s)

Lingchi Xu ¹

Affiliation(s)

¹ College of Materials Science and Engineering, South China University of Technology, Guangzhou, Guangdong, 510640, China

Corresponding Author

ABSTRACT

To explore the rheological behavior of anionic/zwitterionic surfactant mixtures, we performed molecular dynamical simulations at different molar ratios (X_TPS = [TPS]/[TPS]+[SDS]) and Ca²⁺ concentration of sodium-dodecyl-sulfate (SDS) and tetradecyl-dimethyl-ammonium-propane-sulfonate (TPS) aqueous mixtures, which were investigated previously in experiment [1]. The simulation results indicated that with the increase of X_TPS, the micelle aggregation evolving path is interdigitate-wormlike-sphere. Furthermore, with increasing Ca²⁺ concentration, the micelle aggregation evolving path is also interdigitate-wormlike-sphere. We can conclude that there exit an appropriate molar ratio and salt concentration to form wormlike micelle in the anionic/zwitterionic systems. 

KEYWORDS

CITE THIS PAPER

Lingchi Xu, Molecular dynamics simulation of self-assembly in anionic and zwitterionic surfactant systems. Analytical Chemistry: A Journal (2023) Vol. 2: 64-73. DOI: http://dx.doi.org/10.23977/analc.2023.020108.

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