Data supporting: Morphology modulation of ionic surfactant micelles in ternary deep eutectic solvents

This dataset contains raw and processed data in support of the named publication. This consists primarily of small-angle neutron scattering (SANS) data for mixtures of anionic and cationic surfactants in ternary deep eutectic solvents. Data files for differential scanning calorimetry (DSC) and viscosity measurements on the pure deep eutectic solvents are also included.

Keywords:
surfactant, self-assembly, deep eutectic solvents

Cite this dataset as:
Atri, R., Sanchez Fernandez, A., Hammond, O., Manasi, I., Edler, K., 2020. Data supporting: Morphology modulation of ionic surfactant micelles in ternary deep eutectic solvents. Bath: University of Bath Research Data Archive. Available from: https://doi.org/10.15125/BATH-00860.

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Data

DataRepository.zip
application/zip (598kB)
Creative Commons: Attribution 4.0

Creators

Ria Atri
University of Bath

Oliver Hammond
University of Bath

Iva Manasi
University of Bath

Karen Edler
University of Bath

Documentation

Data collection method:

Small-angle neutron scattering (SANS) measurements were carried out on the LOQ and Zoom instruments at ISIS Pulsed Neutron and Muon Source, UK. Mixtures either of sodium dodecyl sulfate (SDS), C12TAB and C16TAB (at concentrations of 25 mM and 130 mM) in choline chloride:urea:glycerol DES at different molar ratios were measured in various isotopic substitutions at 70 °C. The following measurements were carried out on pure choline chloride:urea:glycerol DES in molar ratios of 1:0.5:1.5, 1:1:1 and 1:1.5:0.5: - Differential scanning calorimetry: DSC measurements on the neat solvents were carried out on a TA Instruments DSC-Q20 differential scanning calorimeter. The sample was first equilibrated at 50 °C and held for 1 min, cooled to -75 °C at a ramp rate of 10 °C min-1 and held for 10 min, before heating to 30 °C at a ramp rate of 5 °C min-1 . - Viscosity: The viscosity of the solvents was measured using a TA Instruments HR-3 Discovery Hybrid Rheometer operating in flat plate geometry with Peltier temperature control. Viscosity data was obtained in a temperature range of 20 °C – 85 °C at a fixed shear rate of 1 s-1. The DES were measured as prepared, with a seal of mineral oil to prevent solvent interaction with the atmosphere during measurements.

Data processing and preparation activities:

SANS data were reduced using the routines within Mantid (https://www.mantidproject.org/Main_Page) following the standard procedures on each instrument. The data were normalized to the sample transmission, calibrated to absolute units using a polymer standard and corrected for detector efficiencies, before scattering from the empty cell was subtracted. The resulting output was converted to absolute units of the scattering intensity (I(q), cm-1) vs. the momentum transfer (q, Å-1). Subtraction of the scattering from the pure solvents was performed afterwards using Igor Pro to account for the incoherent contribution to each sample.

Technical details and requirements:

Output data from the SANS experiment consists of .txt files in the standard 1D format of I(q) vs. q (http://danse.chem.utk.edu/trac/wiki/NCNROutput1D_IQ). This data can be fitted using any available software capable of fitting SANS data. All other data is also given as .txt files and can be viewed and plotted using any suitable software.

Additional information:

All data files relating to the same experimental technique are grouped together in sub-folders. Files relating to DSC and viscosity measurements on the pure DES. A PDF file is included in the sub-folder containing SANS data which provides a brief description of the contents of each data file.

Documentation Files

SANS_data_repository_key.pdf
application/pdf (127kB)

This file contains a brief description of each of the SANS data files included in this dataset.

Funders

Engineering and Physical Sciences Research Council (EPSRC)
https://doi.org/10.13039/501100000266

EPSRC Doctoral Training Centre in Sustainable Chemical Technologies
EP/L016354/1

Engineering and Physical Sciences Research Council (EPSRC)
https://doi.org/10.13039/501100000266

Enabling industrial deployment of deep eutectic solvents through manufacturing tools
EP/S020772/1

Science and Technology Facilities Council (STFC)
https://doi.org/10.13039/501100000271

PhD Studentship
3578

European Spallation Source

Publication details

Publication date: 17 June 2020
by: University of Bath

Version: 1

DOI: https://doi.org/10.15125/BATH-00860

URL for this record: https://researchdata.bath.ac.uk/id/eprint/860

Contact information

Please contact the Research Data Service in the first instance for all matters concerning this item.

Contact person: Ria Atri

Departments:

Faculty of Science
Chemistry

Research Centres & Institutes
Centre for Sustainable Chemical Technologies