Time-Resolved SAXS Spectra after Rapidly Mixing Anionic and Cationic Surfactants

Journal Article · Fri May 05 00:00:00 EDT 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2204525· OSTI ID:20798663

Koga, Mayuko; Sasaki, Shigeo ^[1]

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1. Department of Chemistry, Faculty of Science, Kyushu University, Hakozaki 6-10-1, Higashiku, Fukuoka 812-8581 (Japan)

The temporal evolution of nano-structures in mixing the aqueous solutions of anionic and cationic surfactants was investigated by measuring time-resolved SAXS spectra. It is found that vesicles formed just after mixing annihilate to be followed by the lamella formation. The peak intensity due to the vesicle structure decays exponentially with an elapsing time. The peak intensity assigned to the lamella structure grows with a power law of time. The decay time of vesicle and the exponent of power function of time describing the lamella growth increase with NaCl concentration. These results indicate that the electrostatic interaction affects the stability of nano-structures.

• OSTI ID: 20798663
• Journal Information: AIP Conference Proceedings, Vol. 832, Issue 1; Conference: 2. international conference on flow dynamics, Sendai (Japan), 16-18 Nov 2005; Other Information: DOI: 10.1063/1.2204525; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
AQUEOUS SOLUTIONS
DECAY
EVOLUTION
MIXING
NANOSTRUCTURES
PHASE STABILITY
SMALL ANGLE SCATTERING
SODIUM CHLORIDES
SURFACTANTS
TIME DEPENDENCE
TIME RESOLUTION
X-RAY DIFFRACTION
X-RAY SPECTRA