Thermodynamic characteristics and intermolecular interactions in aqueous solutions of oxyethylated glycols |
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| Authors: | A M Zaichikov M A Krest’yaninov |
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| Institution: | (1) Ivanovo State University of Chemical Technology, pr. Engel’sa 7, Ivanovo, 153000, Russia;(2) Institute of Solution Chemistry, Russian Academy of Sciences, Ivanovo, Russia |
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| Abstract: | The thermodynamic characteristics of aqueous solutions of mono-, di-, tri-, and tetraethylene glycols were calculated in the entire range of compositions of the mixtures for various temperatures. The specific and nonspecific terms of the total energy of intermolecular interaction were determined within the framework of a model approach using the internal pressure as a measure of nonspecific interactions in a liquid. The concentration ranges with different types of intercomponent association and of structural organization of solutions depend on the temperature and number of ether groups in the glycol molecules. |
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