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What are the two liquid phases involved in the formation of roughly spherical micelles at highest possible temperatures? What about a surfactant? At how high temperatures have micelles been observed experimentally?

For obvious reasons, mostly micelles are studied in aqueous solutions. I wonder if there are similar phenomena in metallurgy or liquid minerals, for example.

There are many simple binary phase diagrams with wide miscibility gaps in their two-liquid state, at high temperatures. If there was a stable molecule or atom which preferred to stay at the liquid-liquid interface, rather than dissolve in either of the liquids, this would probably act as a surfactant, but I don't know any real examples of this kind.

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    $\begingroup$ Would you consider opal formation as micelles? If limited to organic molecules the temperature ranges are pretty limited. $\endgroup$
    – Jon Custer
    Commented Jun 18 at 14:50
  • $\begingroup$ @JonCuster I intended to ask about supramolecular chemistry, as the tag suggests. I may have not found the best words to distinguish molecular micelles and those composed of equidistant atoms (Si-O-Si linkages in 3 dimensions give only 1 molecule per micelle in opals) $\endgroup$
    – Paul Kolk
    Commented Jun 18 at 17:42
  • $\begingroup$ You are trying to generalize or find parallels between systems (say aqueous surfactant solutions and mineral melts). To generalize, the question is what are properties of the system components that maximize the property in question for the types of system of interest? $\endgroup$
    – Buck Thorn ♦
    Commented Oct 23 at 8:09
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    $\begingroup$ Perhaps ionic liquids are a good bridge between the systems. $\endgroup$
    – Buck Thorn ♦
    Commented Oct 23 at 12:11
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    $\begingroup$ I think they got micelles above 400°C here: science.org/doi/10.1126/science.ado7088 $\endgroup$
    – Mithoron
    Commented Oct 26 at 20:33

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