Dielectric properties of binary mixtures of n-methylbenzenesulfonamide

Journal of Solution Chemistry(1992)

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Abstract
The dielectric permittivities of binary mixtures of N-methylbenzenesul-fonamide (N-MBS) with benzyl alcohol, 1,2-dichloroethane, 1,4-dioxane and hexamethylphosphortriamide were measured as a function of mole fraction over the whole composition range at 30 and 50°C. The excess dielectric permittivities and the excess molar polarizations were also calculated. The excess dielectric permittivities eE and excess molar polarizations PE were found to be negative for N-methylbenzene-sulfonamide mixtures with benzyl alcohol and 1,4-dioxane, eE values were positive and PE values negative for mixtures with 1,2-dichloroethane, and eE and PE values were clearly positive for mixtures with hexamethylphosphortriamide. The results are discussed in terms of the strength of the dipolar and hydrogen-bonding interactions between the molecules in various binary mixtures.
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Key words
excess dielectric permittivities and molar polarization,1,n- methylbenzenesulfonamide mixtures benzyi alcohol,4-dioxane,hexamethylphosphortriamide.,2- dichloroethane,hydrogen bond,dielectric properties
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