Pressure-dependence of the bending modulus of surfactant monolayers in ternary microemulsion systems observed by neutron spin echo

被引:4
作者
Seto, H. [1 ]
Nagao, M.
Kawabata, Y.
机构
[1] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan
[2] Univ Tokyo, Inst Solid State Phys, Tokai, Ibaraki 3191106, Japan
[3] Tokyo Metropolitan Univ, Dept Chem, Hachioji, Tokyo 1920397, Japan
关键词
microemulsion; pressure-dependence; surfactant monolayer; neutron spin echo; bending modulus;
D O I
10.1016/j.colsurfa.2005.10.058
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Pressure-dependence of dynamical fluctuations of surfactant monolayers of ternary microemulsion systems with an ionic surfactant and a nonionic surfactant were investigated by neutron spin echo. The bending modulus of surfactant monolayers increased with increasing pressure both in the cases of the ionic surfactant and of the non-ionic surfactant. It is confirmed that the compression of hydrocarbon tails of surfactant is the main origin of pressure-induced phase transitions. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:430 / 433
页数:4
相关论文
共 14 条
[1]   Pressure-induced freezing of the hydrophobic core leads to a L1→H1 phase transition for C12E5 micelles in D2O [J].
Bossev, DP ;
Kline, SR ;
Israelachvili, JN ;
Paulaitis, ME .
LANGMUIR, 2001, 17 (25) :7728-7731
[2]   The dynamics in dodecane/C10E5/water microemulsions determined by time resolved scattering techniques [J].
Hellweg, T ;
Langevin, D .
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS, 1999, 264 (3-4) :370-387
[3]   STUDY OF DYNAMICS OF MICROEMULSION DROPLETS BY NEUTRON SPIN-ECHO SPECTROSCOPY [J].
HUANG, JS ;
MILNER, ST ;
FARAGO, B ;
RICHTER, D .
PHYSICAL REVIEW LETTERS, 1987, 59 (22) :2600-2603
[4]   Temperature and pressure effects on the bending modulus of monolayers in a ternary microemulsion [J].
Kawabata, Y ;
Nagao, M ;
Seto, H ;
Komura, S ;
Takeda, T ;
Schwahn, D ;
Yamada, NL ;
Nobutou, H .
PHYSICAL REVIEW LETTERS, 2004, 92 (05) :4
[5]   Dynamical fluctuation of the mesoscopic structure in ternary C12E5-water-n-octane amphiphile system -: art. no. 041402 [J].
Komura, S ;
Takeda, T ;
Kawabata, Y ;
Ghosh, SK ;
Seto, H ;
Nagao, M .
PHYSICAL REVIEW E, 2001, 63 (04) :414021-414021
[6]   DYNAMIC FLUCTUATIONS OF DROPLET MICROEMULSIONS AND VESICLES [J].
MILNER, ST ;
SAFRAN, SA .
PHYSICAL REVIEW A, 1987, 36 (09) :4371-4379
[7]   Bending moduli of microemulsions; comparison of results from small angle neutron scattering and neutron spin-echo spectroscopy [J].
Monkenbusch, M ;
Holderer, O ;
Frielinghaus, H ;
Byelov, D ;
Allgaier, J ;
Richter, D .
JOURNAL OF PHYSICS-CONDENSED MATTER, 2005, 17 (31) :S2903-S2909
[8]   Pressure-induced hexagonal phase in a ternary microemulsion system composed of a nonionic surfactant, water, and oil [J].
Nagao, M ;
Seto, H ;
Ihara, D ;
Shibayama, M ;
Takeda, T .
JOURNAL OF CHEMICAL PHYSICS, 2005, 123 (05)
[9]   Effects of temperature and pressure on phase transitions in a ternary microemulsion system [J].
Nagao, M ;
Seto, H ;
Takeda, T ;
Kawabata, Y .
JOURNAL OF CHEMICAL PHYSICS, 2001, 115 (21) :10036-10044
[10]   Small-angle neutron scattering study of a pressure-induced phase transition in a ternary microemulsion composed of AOT, D2O, and n-decane [J].
Nagao, M ;
Seto, H .
PHYSICAL REVIEW E, 1999, 59 (03) :3169-3176