Your browser doesn't support javascript.
loading
Dynamic heterogeneity and viscosity decoupling: origin and analytical prediction.
Das, Nilimesh; Sen, Pratik.
Afiliação
  • Das N; Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur - 208 016, UP, India. psen@iitk.ac.in.
  • Sen P; Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur - 208 016, UP, India. psen@iitk.ac.in.
Phys Chem Chem Phys ; 23(29): 15749-15757, 2021 Jul 28.
Article em En | MEDLINE | ID: mdl-34286756
The molecular-level structure and dynamics decide the functionality of solvent media. Therefore, a significant amount of effort is being dedicated continually over time in understanding their structural and dynamical features. One intriguing aspect of solvent structure and dynamics is heterogeneity. In these systems, the dynamics follow , where p is the measure of viscosity decoupling. We analytically predicted that in such cases, the Stokes-Einstein relationship is modified to due to microdomain formation, and the second term on the right-hand side leads to viscosity decoupling. We validated our prediction by estimating the p values of a few solvents, and they matched well with the literature. Overall, we believe that our approach gives a simple yet unique physical picture to help us understand the heterogeneity of solvent media.

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Prognostic_studies / Risk_factors_studies Idioma: En Ano de publicação: 2021 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Prognostic_studies / Risk_factors_studies Idioma: En Ano de publicação: 2021 Tipo de documento: Article