Conclusion
Stearic acids - Green surfactants and original foaming properties

Foams obtained from 12-hydroxystearic fatty acid tubes have many advantages:

• they are produced from biomolecules and are therefore the result of green chemistry processes;

• the method for obtaining fatty acid tube solutions is simple, reproducible and inexpensive in terms of time and energy;

• tube solutions have optimum foamability, as they enable a very large quantity of foam to be obtained from a small quantity of solution;

• Foams are stable over very long periods as long as tubes are present to stabilize them;

• Foams are thermosensitive, as they can be stabilized/destabilized by adjusting the transition temperature between the tubes and the micelles;

• the foam destabilization...