Publications

In order to elucidate the self-assembling mechanisms in complex fluids involving amphiphiles, neutron spin echo (NSE) experiments were carried out for the bicontinuous microemulsion and the lamellar phases of the non-ionic surfactant C12E5/n-octane/D2O system and also for the lamellar phase of the lipid DPPC/D2O/CaCl2 system. The intermediate functions I(Q,t) obtained from the NSE experiments were well fitted to a stretched exponential function in time I(Q,t) = I(Q, 0)exp[-(.GAMMA.t)2/3]. The NSE results support the theory presented by Zilman and Granek(ZG). We estimated the bending modulus .KAPPA. of the interfacial membrane using their theory. We discuss the application of the ZG theory to the NSE results and also other theories.