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- W1984920702 abstract "A general route is shown to calculate the entropy production σ as function of time t in a closed system during reversible polymerization. We treat the polymer molecules to behave nonideal and apply exemplarily the classical Flory-Huggins theory to get explicit expressions for the activity coefficient. At the beginning of the polymerization the system is in a nonequilibrium state where chemical reactions take place that irreversibly drive the system towards equilibrium with σ approaching zero in the limit t→∞. The time-dependent course of the entropy production is explicitly calculated for two cases where the reaction starts (i) from monomer molecules polymerizing to a defined number average chain length x¯n,eq and (ii) from monodisperse polymer molecules reacting with each other under the constrain that x¯n is the same at the beginning and the end of the reaction. In both cases we find that the nature of the activity coefficient has an important effect on the curvature of σ which may considerably differ from that of an ideal behavior." @default.
- W1984920702 created "2016-06-24" @default.
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- W1984920702 date "2006-01-10" @default.
- W1984920702 modified "2023-10-16" @default.
- W1984920702 title "Entropy production during reversible polymerization in nonideal systems" @default.
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- W1984920702 doi "https://doi.org/10.1063/1.2137696" @default.
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