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  • 1
    Electronic Resource
    Electronic Resource
    Thermal and volumetric properties of chloroform + dimethylsulfoxide: Thermodynamic analysis using the ideal associated solution model (1989)
    Springer
    Journal of solution chemistry 18 (1989), S. 663-673 
    Details
    ISSN: 1572-8927
    Keywords: Ideal associated solution model ; complex formation ; hydrogen bonding ; heat capacities ; chloroform ; dimethylsulfoxide
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract We have made new measurements of partial molar enthalpies of solution, excess heat capacities, and excess volumes of mixtures of chloroform and dimethylsulfoxide. In combination with published vapor pressures and excess enthalpies the results of these measurements have been analyzed within the context of the ideal associated solution model to yield ΔC p ϑ and ΔVϑ for the formation of AB and A2B complexes. It is shown that the ideal associated solution model is consistent with all of the available thermodynamic data for this system, indicating that nearly all of the deviations of this system from ideal solution behavior can be accounted for in terms of chemical interactions of the two components.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00651002
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  • 2
    Electronic Resource
    Electronic Resource
    Thermodynamic Properties of CTAB in Aqueous Solutions of Neutral Polymers at 25°C (1998)
    Springer
    Journal of thermal analysis and calorimetry 54 (1998), S. 271-278 
    Details
    ISSN: 1572-8943
    Keywords: heat capacities ; hexadecyltrimethylammonium bromide ; molar volumes ; polyethylene glycols ; polypropylene glycols ; surfactant-polymer interactions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Interactions of polyethylene glycols (PEGs) and polypropylene glycols (PPOs) in aqueous solutions of hexadecyltrimethylammonium bromide (CTAB) were investigated through thermodynamic properties at 25°C. The densities and heat capacities of the solutions were measured with a vibrating tube densimeter and a Picker flow microcalorimeter, respectively. The variations in the apparent molar volumes and heat capacities of both solutes, calculated from the densities and heat capacities of the solutions, are unusually large in the vicinity of the CMC, reflecting the existence of very strong interactions between CTAB and PPOs. With the more hydrophilic polymers, PEGs, the apparent properties of CTAB are less affected by the presence of the polymer, indicating that PEGs interact only weakly with CTAB.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1010162112407
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