Abstract
The Lattice–Fluid (LF) theory of r-mer mixtures, as modified recently by the author, is reformulated in terms of contributions of functional groups. The model is applied to the homologous series of n-alkanes and their mixtures which can be represented by appropriate combinations of only two groups: –CH3 and –CH2–. A single set of scaling constants for each of these groups has been used for all the investigated properties at all external conditions. The development is in conformity with the principle of congruence. The performance of the model is satisfactory. Comparison with the corresponding formulation of Flory’s equation-of-state theory is, also, discussed.
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Panayiotou, C. An Elementary Group Contribution Model for Normal Alkane Mixtures. Polym J 20, 603–608 (1988). https://doi.org/10.1295/polymj.20.603
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DOI: https://doi.org/10.1295/polymj.20.603