Scaling and Crossover to Tricriticality in Polymer Solutions

Preprint

28 October 2000

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0010468

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.

Keywords

CROSSOVER TO TRICRITICALITY
ASYMPTOTICALLY CLOSE
POLYMER SOLUTIONS
PHASE SEPARATION
PROPOSED SCALED
CRITICAL POINT
SCALING

All Related Versions

Version 1, 2000-10-28, ArXiv
Published version: JETP Letters, 72 (11), 578.

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