AGGREGATE STRUCTURE AND PHASE-TRANSITION OF SCHIFF-BASE CONTAINING VESICLE BILAYER

Aggregate structure, phase transition and their relationship to the pr eparation conditions of single chain Schiff base containing ammonium a mphiphiles with different alkyl chains in aqueous vesicle bilayer were studied with differential scanning calorimetry, X-ray diffraction and electronic absorption spectrum, The experimental results showed that the bilayer structure existed in aqueous solution was affected by the length of tail alkyl chain, The amphiphile with a dodecyloxy tail coul d form both paralell and interdigitated structures, By controlling the preparation condition one of these two stacking form could be obtaine d as the main structure.