This title appears in the Scientific Report :
2012
Please use the identifier:
http://hdl.handle.net/2128/7448 in citations.
Please use the identifier: http://dx.doi.org/10.1063/1.3701265 in citations.
Scattering intensity of bicontinuous microemulsions and sponge phases
Scattering intensity of bicontinuous microemulsions and sponge phases
Monte Carlo simulations of dynamically triangulated surfaces of variable topology are used to investigate the scattering intensities of bicontinuous microemulsions. The bulk scattering intensity is shown to follow the Teubner-Strey expression. The domain size and the correlation length are extracted...
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Personal Name(s): | Peltomäki, M. |
---|---|
Gompper, G. / Kroll, D.M. | |
Contributing Institute: |
Theorie der Weichen Materie und Biophysik; ICS-2 |
Published in: | The @journal of chemical physics, 136 (2012) S. 134708 |
Imprint: |
Melville, NY
American Institute of Physics
2012
|
Physical Description: |
134708 |
PubMed ID: |
22482581 |
DOI: |
10.1063/1.3701265 |
Document Type: |
Journal Article |
Research Program: |
BioSoft: Makromolekulare Systeme und biologische Informationsverarbeitung |
Series Title: |
Journal of Chemical Physics
136 |
Subject (ZB): | |
Link: |
Get full text Published under German "Allianz" Licensing conditions on 2012-04-06. Available in OpenAccess from 2012-04-06 |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1063/1.3701265 in citations.
Monte Carlo simulations of dynamically triangulated surfaces of variable topology are used to investigate the scattering intensities of bicontinuous microemulsions. The bulk scattering intensity is shown to follow the Teubner-Strey expression. The domain size and the correlation length are extracted from the scattering peaks as a function of the bending rigidity, saddle-splay modulus, and surfactant density. The results are compared to earlier theories based on Ginzburg-Landau and Gaussian random field models. The ratio of the two length scales is shown to be well described by a linear combination of logarithmically renormalized bending rigidity and saddle-splay modulus with universal prefactors. This is in contrast to earlier theoretical predictions in which the scattering intensity is independent of the saddle-splay modulus. The equation of state, and the asymptotics of the bulk and film scattering intensities for high and low wave vectors are determined from simulations and compared with theoretical results. |