Document Detail


Virial coefficients and osmotic pressure in polymer solutions in good-solvent conditions.
MedLine Citation:
PMID:  16965115     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
We determine the second, third, and fourth virial coefficients appearing in the density expansion of the osmotic pressure Pi of a monodisperse polymer solution in good-solvent conditions. Using the expected large-concentration behavior, we extrapolate the low-density expansion outside the dilute regime, obtaining the osmotic pressure for any concentration in the semidilute region. Comparison with field-theoretical predictions and experimental data shows that the obtained expression is quite accurate. The error is approximately 1%-2% below the overlap concentration and rises at most to 5%-10% in the limit of very large polymer concentrations.
Authors:
Sergio Caracciolo; Bortolo Matteo Mognetti; Andrea Pelissetto
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of chemical physics     Volume:  125     ISSN:  0021-9606     ISO Abbreviation:  J Chem Phys     Publication Date:  2006 Sep 
Date Detail:
Created Date:  2006-09-12     Completed Date:  2007-08-02     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0375360     Medline TA:  J Chem Phys     Country:  United States    
Other Details:
Languages:  eng     Pagination:  094903     Citation Subset:  -    
Affiliation:
Dipartimento di Fisica, Università degli Studi di Milano, Via Celoria 16, I-20133 Milano, Italy. sergio.caracciolo@mi.infn.it
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