Four new hybrid (bolaphile/amphiphile) ion-pairs were synthesized. Electron microscopy indicated that each of these forms bilayer membranes upon dispersion in aqueous media. Membrane properties have also been examined by differential scanning calorimetry, microcalorimetry, temperature-dependent fluorescence anisotropy measurements, and UV- vis spectroscopy. The T m values for the vesicular 1, 2, 3, 4, and 5 were 38, 12, 85, 31.3, ...