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Temperature Effect on the Adsorption and Volumetric Properties of Aqueous Solutions of Kolliphor®ELP.

ABSTRACT: Density, viscosity and surface tension of Kolliphor® ELP, the nonionic surfactant aqueous solutions were measured at temperature T = 293-318 K and at 5K interval. Steady-state fluorescence measurements have been also made using pyrene as a probe. On the basis of the obtained results, a number of thermodynamic, thermo-acoustic and anharmonic parameters of the studied surfactant have been evaluated and interpreted in terms of structural effects and solute-solvent interactions. The results suggest that the molecules of studied surfactant at concentrations higher than the critical micelle concentration act as structure makers of the water structure.

SUBMITTER: Szymczyk K

PROVIDER: S-EPMC7037185 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature

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Temperature Effect on the Adsorption and Volumetric Properties of Aqueous Solutions of Kolliphor<sup>®</sup>ELP.

Szymczyk Katarzyna K Szaniawska Magdalena M Krawczyk Joanna J

Molecules (Basel, Switzerland) 20200209 3

Density, viscosity and surface tension of Kolliphor<sup>®</sup> ELP, the nonionic surfactant aqueous solutions were measured at temperature T = 293-318 K and at 5K interval. Steady-state fluorescence measurements have been also made using pyrene as a probe. On the basis of the obtained results, a number of thermodynamic, thermo-acoustic and anharmonic parameters of the studied surfactant have been evaluated and interpreted in terms of structural effects and solute-solvent interactions. The resul ...[more]

PMID: 32050404

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