Volume 35, Number 9, September III 1996
|Page(s)||695 - 700|
|Section||Condensed matter: structure, thermal and mechanical properties|
|Published online||01 September 2002|
The effects of chain conformations on the thermodynamics of polymeric systems: A mean-field theory
Department of Materials Science and Engineering, Polymer Science Program,
State University - University Park, PA 16802, USA
2 Department of Chemistry, Purdue University - West Lafayette, IN 47907, USA
Accepted: 31 July 1996
Many popular models for macromolecular system thermodynamics, such as the Flory model, assume that chain conformations decouple from system thermodynamics even though it is well known that these two factors are intimately connected. Here we present a single-chain–based, mean-field model that explicitly incorporates the coupling between the conformations of the chains and the thermodynamic behavior of the polymer solutions. The theory predicts a variation of chain conformation and system thermodynamics with polymer concentration, even for athermal solutions, in reasonable agreement with Monte Carlo simulations.
PACS: 61.25.Hq – Macromolecular and polymer solutions; polymer melts / 82.60.Lf – Thermodynamics of solutions / 61.20.Gy – Theory and models of liquid structure
© EDP Sciences, 1996
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