Jump to main content
Jump to site search


Multimodal character of shear viscosity response in hydrogen bonded liquids

Author affiliations

Abstract

The impact of supramolecular aggregate formation on the shear viscosity response of hydrogen bonded liquids was investigated. In particular, we study the shear mechanical response of several monoalcohols showing exponential and non-exponential shape dielectric Debye-like relaxation. In addition to the structural relaxation, distinctive of the glass transition, and the terminal crossover to pure viscous flow, characteristic of simple liquid flow, systematic analysis of complex viscosity curves evidences the presence of an additional intermediate process between those two. While the recovery of pure viscous flow would reflect the complete relaxation of the hydrogen bonded aggregates the intermediate process correlates with the rotational dynamics of hydroxyl groups, potentially caused by the breaking of individual hydrogen bonds.

Graphical abstract: Multimodal character of shear viscosity response in hydrogen bonded liquids

Back to tab navigation

Supplementary files

Publication details

The article was received on 02 Jul 2018, accepted on 27 Aug 2018 and first published on 29 Aug 2018


Article type: Paper
DOI: 10.1039/C8CP04183K
Citation: Phys. Chem. Chem. Phys., 2018, Advance Article
  •   Request permissions

    Multimodal character of shear viscosity response in hydrogen bonded liquids

    S. Arrese-Igor, A. Alegría and J. Colmenero, Phys. Chem. Chem. Phys., 2018, Advance Article , DOI: 10.1039/C8CP04183K

Search articles by author

Spotlight

Advertisements