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Polymer size in dilute solutions in the good-solvent regime | | Sergio Caracciolo
; Bortolo Matteo Mognetti
; Andrea Pelissetto
; | | Date: |
27 Jun 2006 | | Subject: | Statistical Mechanics | | Abstract: | We determine the density expansion of the radius of gyration, of the hydrodynamic radius, and of the end-to-end distance for a monodisperse polymer solution in good-solvent conditions. We consider the scaling limit (large degree of polymerization), including the leading scaling corrections. Using the expected large-concentration behavior, we extrapolate these low-density expansions outside the dilute regime, obtaining a prediction for the radii for any concentration in the semidilute region. For the radius of gyration, comparison with field-theoretical predictions shows that the relative error should be at most 5% in the limit of very large polymer concentrations. | | Source: | arXiv, cond-mat/0606692 | | Services: | Forum | Review | PDF | Favorites | |
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