Dataset for "Impact of wormlike micelles on nano and macroscopic structure of TEMPO-oxidized cellulose nanofibrils hydrogels"

The data set contains ASCII files (comma delimited) for the following:

- Small-angle neutron scattering (SANS) curves and fits for cocamidopropyl betaine (CAPB), cocamidopropylamine oxide (CAPOx) and sodium lauroyl sarcosinate (SLS) as a function of the surfactant concentration in sodium chloride (NaCl) 1wt% in 100% heavy water (deuterium oxide, D2O).
- SANS curves and fits for CAPB/sodium dodecyl sulphate (SDS), CAPOx/SDS and CAPB/SLS as a function of the surfactant concentration in NaCl 1wt% in 100% D2O.
- Oscillatory shear frequency sweeps for CAPB/SDS and CAPOx/SDS solution at 60/60 mM of surfactant in aqueous NaCl 1wt%.
- SANS curves and fits for CAPB, CAPOx and SLS mixtures as a function of the surfactant concentration in oxidized cellulose nanofibrils (OCNF) 1wt% in aqueous NaCl 1wt% in 100% D2O.
- Oscillatory shear frequency sweeps for CAPB, CAPOx and SLS mixtures as a function of surfactant concentration in OCNF 1wt% in aqueous NaCl 1wt%.
- Oscillatory shear frequency sweeps for CAPB/SDS, CAPOx/SDS and CAPB/SLS mixtures as a function of surfactant concentration in OCNF 1wt% in aqueous NaCl 1wt%.
- Oscillatory shear amplitude sweeps CAPB/SDS, CAPOx/SDS and CAPB/SLS mixtures as a function of surfactant concentration in OCNF 1wt% in aqueous NaCl 1wt%.
- SANS curves and fits for CAPB/SDS in 100wt% D2O, CAPOx/SDS in 100wt% D2O and CAPB/SDS in 15wt% D2O mixtures as function of the surfactant concentration in OCNF 1wt%/NaCl 1wt%.

Keywords:
rheology, small-angle neutron scattering, nanocelluloses, wormlike micelles
Subjects:
Materials sciences

Cite this dataset as:
Alves Da Silva, M., Calabrese, V., Schmitt, J., Hossain, Z., Bryant, S., Mahmoudi, N., Scott, J., Edler, K., 2020. Dataset for "Impact of wormlike micelles on nano and macroscopic structure of TEMPO-oxidized cellulose nanofibrils hydrogels". Bath: University of Bath Research Data Archive. Available from: https://doi.org/10.15125/BATH-00797.

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Data

dataset.zip
application/zip (318kB)
Creative Commons: Attribution 4.0

Collection of the data used to build the graphs presented in the paper "Impact of wormlike micelles on nano and macroscopic structure of TEMPO-oxidized cellulose nanofibrils hydrogels"

Creators

Julien Schmitt
University of Bath

Zakir Hossain
University of Bath

Saffron Bryant
University of Bath

Najet Mahmoudi
Science and Technology Facilities Council

Janet L. Scott
University of Bath

Karen Edler
University of Bath

Documentation

Data collection method:

Rheological measurements were conducted on a stress-controlled Discovery Hybrid Rheometer, Model HR-3 (TA Instruments, USA) equipped with a sand-blasted 40 mm parallel plate geometry over a sand-blasted lower plate. Temperature was controlled via a Peltier unit (±0.1 °C) and kept at 25 °C. A thin layer of low viscosity mineral-oil was added to the edge of the geometry to prevent sample evaporation. Oscillatory amplitude sweeps were done at a fixed angular frequency (ω) of 6.28 rad·s-1 and amplitude strain (γ) from 0.01 to 100%. Frequency sweeps were conducted at γ of 0.1%, within the linear viscoelastic range, covering ω of 0.01 to 50 rad·s-1. All samples were measured between 24 and 48 hrs after preparation. Small-angle neutron scattering (SANS) measurements were conducted on the time-of-flight diffractometer instrument SANS2d at the STFC ISIS Neutron and Muon Source (Didcot, UK). Incidental wavelengths from 1.75 to 16.5 Å were used with a sample-to-detector distance of 4 m, corresponding to a total scattering vector range q from 4.5 × 10-3 to 0.75 Å-1. The sample temperature was controlled by an external circulating thermal bath (Julabo, DE). The scattering intensity was converted to the differential scattering cross-section in absolute units using ISIS standard procedures. Samples were loaded in 1 mm path length, 1 cm wide optical quartz cells. Constrast match experiments were done at 15 wt% D2O, which is the contrast match point for the surfactant mixtures. All other SANS experiments were done in 100 wt% D2O.

Funders

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

New Enzymatically Produced Interpenetrating Starch-Cellulose Gels
EP/N033310/1

Publication details

Publication date: 30 April 2020
by: University of Bath

Version: 1

DOI: https://doi.org/10.15125/BATH-00797

URL for this record: https://researchdata.bath.ac.uk/id/eprint/797

Related articles

da Silva, M. A., Calabrese, V., Schmitt, J., Hossain, K. M. Z., Bryant, S. J., Mahmoudi, N., Scott, J. L. and Edler, K. J., 2020. Impact of wormlike micelles on nano and macroscopic structure of TEMPO-oxidized cellulose nanofibril hydrogels. Soft Matter, 16(20), pp.4887-4896. Available from: https://doi.org/10.1039/D0SM00135J.

Contact information

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

Departments:

Faculty of Science
Chemistry

Research Centres & Institutes
Centre for Sustainable Chemical Technologies