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Two-parameter model predictions and θ-point crossover for linear-polymer solutions

2007/10/17 by Sergio Caracciolo, Bortolo Matteo Mognetti, Andrea Pelissetto · 1 citation
Chemical Engineering · Chemistry · Engineering · Physics and Astronomy · #Phase Equilibria and Thermodynamics #Rheology and Fluid Dynamics Studies #Surfactants and Colloidal Systems #cond-mat.soft #cond-mat.stat-mech

paper · pdf · doi:10.1063/1.2826378

published as J. Chem. Phys. 128: 065104, 2008 · 27 pages, 12 figures

arxiv created 2007/10/17 · openalex publication_date 2008/02/08 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We consider the first few virial coefficients of the osmotic pressure, the radius of gyration, the hydrodynamic radius, and the end-to-end distance for a monodisperse polymer solution. We determine the corresponding two-parameter model functions which parametrize the crossover between the good-solvent and the ideal-chain behavior. These results allow us to predict the osmotic pressure and the polymer size in the dilute regime in a large temperature region above the theta point.

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