Publications


Title : Neutron Spin Echo Investigations on Dynamics in Ternary C12E5 / n-octane / D2O and DPPC / D2O / CaCl2 Amphiphilic Systems

Language: English
Type: Article
Authors: Takayoshi Takeda, Youhei Kawabata, Hideki Seto, Shigeyuki Komura and Michihiro Nagao
Journal: Journal of the Physical Society of Japan
ISSN: 0031-9015
Volume: 70
Number: Supplement A
Year: 2001
Actual year: 2001
Pages: 323-325
Abstract: 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.

"Neutron Spin Echo Investigations on Dynamics in Ternary C12E5 / n-octane / D2O and DPPC / D2O / CaCl2 Amphiphilic Systems"

Takayoshi Takeda, Youhei Kawabata, Hideki Seto, Shigeyuki Komura and Michihiro Nagao, Journal of the Physical Society of Japan, 70, 323-325 (2001)