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Scaling and Crossover to Tricriticality in Polymer Solutions

M. A. Anisimov·V. A. Agayan·E. E. Gorodetskii
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Abstract

We propose a scaling description of phase separation of polymer solutions. The scaling incorporates three universal limiting regimes: the Ising limit asymptotically close to the critical point of phase separation, the "ideal-gas" limit for the pure-solvent phase, and the tricritical limit for the polymer-rich phase asymptotically close to the theta point. We have also developed a phenomenological crossover theory based on the near-tricritical-point Landau expansion renormalized by fluctuations. This theory validates the proposed scaled representation of experimental data and crossover to tricriticality.

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M. A. Anisimov, V. A. Agayan, E. E. Gorodetskii. 2000-10-28. Scaling and Crossover to Tricriticality in Polymer Solutions. https://doi.org/10.1134/1.1348485

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