Surface and foaming properties of polyoxyethylene glycerol ester surfactants

- The surface properties of two enviroment-friendly surfactants were studied.
- A Frumkin model assuming the compressibility of the adsorbed film was used.
- The diffusion coefficient of Levenol C-201 is higher than Levenol H&B.
- Foam stability correlates with surface dilatational elasticity.