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The competition between chain formation and phase separation in the Stockmayer fluid (SF) of dipolar particles is analyzed using a renormalized Flory-Huggins model of equilibrium polymerization. Calculated critical properties (T₂, ₂, Z₂) for the SF compare favorably with simulations over a wide range of the dimensionless dipolar (or ``sticking'') energy ^*. We find that the polymerization transition preempts phase separation for a large ^*, i. e. , (^*) ^2>22.
Dudowicz et al. (Wed,) studied this question.