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The microscopic structure of an exactly solvable model binary solution that exhibits two closed loops in the phase
1Department of Chemistry, Texas Christian University, Fort Worth, Texas 76129, USA.
Abstract:
An exactly solvable lattice model describing a binary solution is considered where rodlike molecules of types AA and BB cover the links of a honeycomb lattice, the neighboring molecular ends having three-body and orientation-dependent bonding interactions. At phase coexistence of AA-rich and BB-rich phases, the average fraction of each type of triangle of neighboring molecular ends is calculated exactly. The fractions of the different types of triangles are then used to deduce the local microscopic structure of the coexisting phases for a case of the model that contains two closed loops in the phase diagram.
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