Dissolution of lamellar phases

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    Abstract

    Dissolution of surfactant liquid crystals is an important process both at the manufacturing stage of surfactant based formulated products and during their use. Dissipative particle dynamics simulations were employed to study the production of surfactant-oil-water systems under both temperature and water quenches. Upon the dissolution of a high concentration lamellar phase surfactant, wormlike micelles are formed, which differ from the spherical micelles produced at the same concentration with a temperature quench. The surfactant molecules have a tendency to remain within their initially formed lamellar phase sheets and just rearrange into wormlike micelles. When a hydrophobic additive (oil) is added to the initial system, longer cylindrical micelles are formed, with the creation of some spherical micelles under dissolution. These micelles detach from the long cylinders as a result of their natural oscillations. © 2011 American Chemical Society.
    Original languageEnglish
    Pages (from-to)10218-10227
    Number of pages9
    JournalJournal of Physical Chemistry B
    Volume115
    Issue number34
    DOIs
    Publication statusPublished - 1 Sept 2011

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