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The Flory mixing free energy: the effects of solute topology and monomer size
Author(s) -
Nicolas A.,
Fourcade B.,
Halperin A.
Publication year - 2000
Publication title -
macromolecular theory and simulations
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.37
H-Index - 56
eISSN - 1521-3919
pISSN - 1022-1344
DOI - 10.1002/1521-3919(20001201)9:9<755::aid-mats755>3.0.co;2-p
Subject(s) - thermodynamics , mixing (physics) , curse of dimensionality , statistical physics , entropy of mixing , entropy (arrow of time) , lattice (music) , monomer , lattice energy , chemistry , physics , enthalpy , mathematics , polymer , statistics , crystallography , crystal structure , quantum mechanics , organic chemistry , acoustics
This note presents a lattice‐based derivation of the Flory free energy that does not invoke assumptions on the chain character of the solute. This derivation highlights two crucial features of the Flory free energy: (i) The mixing entropy S mix is insensitive to the solute structural details. It depends only on the number of lattice sites occupied by the solute. (ii) In marked distinction, the mixing energy does vary with the topology of the solute, the monomer size and the dimensionality. Our discussion suggests re‐examination of the applicability of the Flory free energy to non‐polymeric solutions.