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Liquid Worm-like and Proto-Micelles: Water Solubilization in Amphiphile-Oil Solutions

Abstract

Noncovalent interactions determine the structure-property relationship of materials. Self-assembly originated from weak noncovalent interactions represent a broad variety of solution-based transformations spanning micellization and crystallization, which, nevertheless, conform to neither colloid, nor solution sciences. Here, we investigate weak self-assembly in water-amphiphile-oil solutions to understand the connection between amphiphile molecular structure and water solubilization in oil. X-ray and neutron scattering, converged with large-scale atomistic molecular dynamics simulations, support that the amphiphiles assemble into liquid worm-like micelles and loose inverted proto-micelles. The inverted proto-micelles are energetically ready to accommodate a higher amount of water. These structures arise from a balance of intermolecular interactions controlled by the amphiphile tail-group structures. Thus, by linking aggregate morphology to molecular structure, this work sheds insights in the molecular design for the control of water solubility and dispersion in oil.

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Publication details

The article was received on 26 Jan 2018, accepted on 09 Apr 2018 and first published on 10 Apr 2018


Article type: Paper
DOI: 10.1039/C8CP00600H
Citation: Phys. Chem. Chem. Phys., 2018, Accepted Manuscript
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    Liquid Worm-like and Proto-Micelles: Water Solubilization in Amphiphile-Oil Solutions

    B. Qiao, K. C. Littrell and R. Ellis, Phys. Chem. Chem. Phys., 2018, Accepted Manuscript , DOI: 10.1039/C8CP00600H

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