Self-assembly of ternary and 5-component surfactant mixtures studied.
In ternary mixtures, scattering data modelled as globular interacting micelles.
In ternary mixtures, variation in aggregation number implies micelle composition close to solution composition.
In 5-component mixture addition of rhamnolipid biosurfactants affects evolution in phase behaviour.
For rhamnolipid rich compositions transition from micelle to lamellar/micellar co-existence occurs.
Transition associated with synergistic packing effects.