Phase behavior of flowerlike micelles in a SCF cell model.
We study the interactions between flowerlike micelles, self-assembled from telechelic associative polymers, using a molecular self-consistent field (SCF) theory and discuss the corresponding phase behavior. In these calculations we do not impose properties such as aggregation number, micellar structure and number of bridging chains. Adopting a SCF cell model, we calculate the free energy of interaction between a central micelle surrounded by others. Based on these results, we predict the binodal for coexistence of dilute and dense liquid phases, as a function of the length of the hydrophobic and hydrophilic blocks. In the same cell model we compute the number of bridges between micelles, allowing us to predict the network transition. Several quantitative trends obtained from the numerical results can be rationalized in terms of transparent scaling arguments.
Sprakel
J
J
Laboratory of Physical Chemistry and Colloid Science, Wageningen University, Dreijenplein 6, 6703 HB, Wageningen, the Netherlands. joris.sprakel@wur.nl
Besseling
N A M
NA
Cohen Stuart
M A
MA
Leermakers
F A M
FA
D001703:Biophysics / Q000379:methods*; D008823:Micelles; D015233:Models, Statistical; D008962:Models, Theoretical; D008968:Molecular Conformation; D011108:Polymers / Q000737:chemistry
D008823:Micelles; D011108:Polymers