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Some regularities of the energetics of structure formation in mixtures of polar organic solvents not forming layered structures with liquid hydrocarbons and in mixtures of inert and low-polar diluents at 20\( \pm 1{\kern 1pt} {\kern 1pt} ^\circ C\) were established. In most cases, the deviation of the methylene group increments from additivity, defining the energy stability of a liquid structure, was distinctly negative. In particular, the increment decreases dramatically from individual higher alcohols to mixtures of propanol and n-octane which model the former in the concentration of functional groups per unit volume, and the structure of mixture is weakened. Solvents of close polarity, in turn, form mixtures whose methylene group increments are well approximated by the additivity law. |
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