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Theory of microemulsions in a gravitational fieldA theory of microemulsions developed previously is extended to include the effect of a gravitational field. It predicts variation with position of drop size, drop volume fraction, and area per molecule in the surfactant films within a microemulsion phase. Variation in volume fraction is greatest and occurs in such a way that oil content increases with increasing elevation, as has been found experimentally. Large composition variations are predicted within a middle phase microemulsion near optimal conditions because inversion from the water-continuous to the oil-continuous arrangement occurs with increasing elevation. Generally speaking, gravity reduces solubilization within microemulsions and promotes separation of excess phases.
Document ID
19900007783
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Jeng, J. F.
(Rice Univ. Houston, TX, United States)
Miller, Clarence A.
(Rice Univ. Houston, TX, United States)
Date Acquired
August 14, 2013
Publication Date
August 1, 1989
Publication Information
Publication: NASA, Lewis Research Center, NASA Laser Light Scattering Advanced Technology Development Workshop, 1988
Subject Category
Inorganic And Physical Chemistry
Accession Number
90N17099
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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