TY  - JOUR
AU  - Peltomäki, M.
AU  - Gompper, G.
AU  - Kroll, D.M.
TI  - Scattering intensity of bicontinuous microemulsions and sponge phases
JO  - The journal of chemical physics
VL  - 136
SN  - 0021-9606
CY  - Melville, NY
PB  - American Institute of Physics
M1  - PreJuSER-20608
SP  - 134708
PY  - 2012
N1  - Record converted from VDB: 12.11.2012
AB  - 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.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
C6  - pmid:22482581
UR  - <Go to ISI:>//WOS:000302596500050
DO  - DOI:10.1063/1.3701265
UR  - https://juser.fz-juelich.de/record/20608
ER  -