I am trying t understand the thermodynamics of bio surfactants, particularly Rhamnolipids. All I find is information on the free enrgy of formation of micelles, which is not of interst for my reseach. I would be interset in e.g; enthalpy of formation of a Rhamnolipid or of whaterver other biosurfactant for which data are available, e.g. rhamnolipids, sophorolipids, trehalose, mannosylerithtrithollipds, surfactin