Formation and structure of the microemulsion phase in two-dimensional ternary AB+A+B polymeric emulsions

Details Formation and structure of the microemulsion phase in two-dimensional ternary AB+A+B polymeric emulsions Formation and structure of the microemulsion phase in two-dimensional ternary AB+A+B polymeric emulsions

2004-05-19

arxiv.org/abs/cond-mat/0405435v1

Physics

Condensed Matter

Soft Condensed Matter

to appear in J. Chem. Phys

Scientific paper

10.1063/1.1768152

We present an analysis of the structure of the fluctuation-induced microemulsion phase in a ternary blend of balanced AB diblock copolymers with equal amounts of A and B homopolymers. To this end, graphical analysis methods are employed to characterize two-dimensional configuration snapshots obtained with the recently introduced Field-Theoretic Monte Carlo (FTMC) method. We find that a microemulsion forms when the mean curvature diameter of the lamellar phase coincides roughly with the periodicity of the lamellar phase. Further, we provide evidence to the effect of a subclassification of the microemulsion into a genuine and a defect-driven region.

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