Small angle scattering of bicontinuous structures in microemulsions

Journal Article · Tue Mar 15 04:00:00 EST 1988 · J. Chem. Phys.; (United States)

DOI:https://doi.org/10.1063/1.453846· OSTI ID:5417894

Vonk, C G; Billman, J F; Kaler, E W

We present a model of bicontinuous microemulsion structure based on a disordered lamellar structure. The scattering predicted by this model is compared with measured small angle neutron scattering curves from a family of microemulsions formed with sodium 4-(1'-heptylnonyl) benzenesulfonate, iso-butanol, D/sub 2/O brines, and the even alkanes from octane to hexadecane. The model, with two parameters, fits the data on an absolute scale well. Disordered lamellae spacings and distortion lengths vary from approximately 850 and 570 A, respectively, for microemulsions formed with dodecane to 430 and 400 A for those formed with hexadecane. A distribution of lamellae thicknesses can be introduced to account for scattering curves that display a maximum in intensity scattered at zero scattering vector.

• Research Organization: Department of Chemical Engineering, BF-10, University of Washington, Seattle, Washington 98195
• OSTI ID: 5417894
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 88:6; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360602* -- Other Materials-- Structure & Phase Studies
ALKALI METAL COMPOUNDS
BRINES
COHERENT SCATTERING
COLLOIDS
DIFFRACTION
DISPERSIONS
EMULSIONS
MICROEMULSIONS
NEUTRON DIFFRACTION
SCATTERING
SMALL ANGLE SCATTERING
SODIUM COMPOUNDS
STRUCTURE FACTORS
SURFACTANTS