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

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 t...

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Detalles Bibliográficos
Autores principales: Szymczyk, Katarzyna, Szaniawska, Magdalena, Krawczyk, Joanna
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7037185/
https://www.ncbi.nlm.nih.gov/pubmed/32050404
http://dx.doi.org/10.3390/molecules25030743
Descripción
Sumario: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.