SHORT-SPACER CATIONIC BI-(F-ALKYLATED) BO LAPHILES - PRODUCTION OF VESICLES IN AQUEOUS SOLUTION AFTER SONICATION

The production of vesicular membranes in aqueous solution by a new ser ies of bis(polyfluoroalkylated) bis(ammonium) compounds with a short s pacer length, i.e. CH3)(2)(CH2)(n)N(CH3)(2)CH(2)OCXC(2)H(4)R(F)](2+), 2Br(-) has been studied. Of these compounds, it is shown by freeze-fra cture electron microscopy that after sonication two amphiphiles produc e small unilamellar vesicles in water, Dynamic light scattering (DLS) experiments have been used to characterise their mean hydrodynamic rad ii.