Chain melting in swollen catanionic bilayers

The studies of temperature dependent transitions of bilayer structures are mainly focused on phospholipids systems. Since the appearance of catanionic surfactants it is possible to study another type of bilayer structure but as they were prepared until recently in the presence of initial counter-ions, the electrostatic interactions could not be taken in account. Our aim is to present some differential scanning calorimetry results of salt-free catanionic systems prepared with acid surfactant and hydroxide surfactant, and to compare them with literature data.