Clipped random wave analysis of anisometric lamellar microemulsions

Physical Review E - Statistical, Nonlinear, and Soft Matter Physics

Volumn 63, Issue 2 II, 2001, Pages 1-9

  Choy, Dawen ^a   Chen, Sow Hsin ^b  

^a MASSACHUSETTS INSTITUTE OF TECHNOLOGY   (United States)

^b Massachusetts Institute of Technology Cambridge   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 18344362708     PISSN: 15393755     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevE.63.021401     Document Type: Article

References (11)

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2. As used in this context, "dilute" is not an exact definition tied to a specific range of surfactant volume ratios. Rather, it is used generally to define lamellar microemulsions whose surfactant volume ratio is not sufficient to generate the usual stacked lamellar structure. As discussed in our earlier paper [1], the stacked lamellar structure is typically maintained by Helfrich steric repulsions that decay with increasing distance between lamellar sheets. When this lamellar repeating distance is increased sufficiently that the Helfrich interaction is weak, thermal fluctuations will be strong enough to create topological defects in the stacked lamellar structure, leading to the disordered phase observed. At present, there is no theoretical means of deriving the point at which this breakdown in structure occurs, so for now we are confined to using "dilute" as an operational definition.
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10. Values for the Q width of the resolution function were obtained from IPNS.
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