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Speed of sound and density of poly(ethylene glycol) methacrylate 360 (PEGMA) + methanol, + ethanol, + 2-propanol, and + 1-butanol systems have been measured experimentally over the whole range of composition at T = 298.15 K and atmospheric pressure. From these experimental data, the excess molar volumes, isentropic compressibility, and changes in speed of sound and isentropic compressibility have been determined for each composition. The results have been interpreted in light of polymer−solvent interactions and packing effects. Also, the excess molar volumes and the changes of the speed of sound and the isentropic compressibility were fitted to two different variable-degree polynomial equations.
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Zafarani-Moattar et al. (2006) studied this question.
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