Investigation on Proton Dynamics of Ethylene Glycol Using Quasielastic Neutron Scattering

DOI

Ethylene glycol is an industrially important alcohol used as anti-freeze. The presence of intra and inter-molecular hydrogen bonding in its liquid and solid state form makes the analysis of the microscopic dynamics of this alcohol complicated. Investigations using quasielastic neutron scattering (QENS) shows that the proton dynamics in the liquid ethylene glycol can not be explained only by translational and rotational motions. In a recent QENS Xpress experiment we have found significant QENS contributions at temperature 240K, well below its freezing point, indicating rotational motions of protons. Preliminary investigation on temperature dependent quasielastic broadening indicates change in the nature of microscopic proton dynamics with temperatures. We seek neutron beam time to investigate this dynamics in more detail. We will use MD simulations to analyse experimental results.

Identifier
DOI https://doi.org/10.5286/ISIS.E.24090230
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/24090230
Provenance
Creator Dr Sanghamitra Mukhopadhyay
Publisher ISIS Neutron and Muon Source
Publication Year 2016
Rights CC-BY Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Contact isisdata(at)stfc.ac.uk
Representation
Resource Type Dataset
Discipline Photon- and Neutron Geosciences
Temporal Coverage Begin 2013-03-15T14:14:19Z
Temporal Coverage End 2013-03-25T07:24:21Z