Abstract:
The domen boundary thickness dependence of amphiphil substance concentration in lyotropic liquid crystal systems was investigated, through $\mathrm{X}$-ray diffraction and polaroid optical microscope, the domen boundary is the water layer itself, but at higher concentration the domen boundary is the lipid bilayer of lamellas. A connection between the $\mathrm{X}$-ray reflex and thicknesses of domen boundaries was obtained.