Dataset for 'Cationic surfactants as a non-covalent linker for oxidised cellulose nanofibrils and starch-based hydrogels'

683 55 12952 7 37770 document 12952 Zeta potential_Fig 2_ESI 6&7.xlsx application/vnd.openxmlformats-officedocument.spreadsheetml.sheet 39445074a63afbdd341994bb7f4effea MD5 12171 2020-01-04 13:10:12 https://researchdata.bath.ac.uk/683/5/Zeta%20potential_Fig%202_ESI%206%267.xlsx 683 5 5 application/vnd.openxmlformats-officedocument.spreadsheetml.sheet other Raw data for ζ-potential (Figure 2, and ESI 6 and 7) en public cc_by

Zeta potential_Fig 2_ESI 6&7.xlsx

data 12953 5 37772 document 12953 Rheology_Figure 3.xlsx application/vnd.openxmlformats-officedocument.spreadsheetml.sheet 4ef994a5bc131371757c0fdb7d07f17f MD5 20007 2020-01-04 13:10:55 https://researchdata.bath.ac.uk/683/6/Rheology_Figure%203.xlsx 683 6 6 application/vnd.openxmlformats-officedocument.spreadsheetml.sheet other Raw rheology data (Figure 3) en public cc_by

Rheology_Figure 3.xlsx

data 12954 5 37774 document 12954 Rheology_Figure 4.xlsx application/vnd.openxmlformats-officedocument.spreadsheetml.sheet 867200c36f9e3e9e0538f4caf19f2733 MD5 14036 2020-01-04 13:12:27 https://researchdata.bath.ac.uk/683/7/Rheology_Figure%204.xlsx 683 7 7 application/vnd.openxmlformats-officedocument.spreadsheetml.sheet other Raw rheology data (Figure 4) en public cc_by

Rheology_Figure 4.xlsx

data 12955 5 37776 document 12955 Rheology_Figure 5.xlsx application/vnd.openxmlformats-officedocument.spreadsheetml.sheet ade96c3f9dc11dc5068b91f73c50b773 MD5 16205 2020-01-04 13:12:33 https://researchdata.bath.ac.uk/683/8/Rheology_Figure%205.xlsx 683 8 8 application/vnd.openxmlformats-officedocument.spreadsheetml.sheet other Raw rheology data (Figure 5) en public cc_by

Rheology_Figure 5.xlsx

data 12956 6 37778 document 12956 Iodine Test_Figure 7&8.xlsx application/vnd.openxmlformats-officedocument.spreadsheetml.sheet 517249b39bfea6ea382de956cd8306a0 MD5 91192 2020-01-04 13:12:38 https://researchdata.bath.ac.uk/683/9/Iodine%20Test_Figure%207%268.xlsx 683 9 9 application/vnd.openxmlformats-officedocument.spreadsheetml.sheet other Raw data from iodine test (Figures 7 and 8) en public cc_by

Iodine Test_Figure 7&8.xlsx

data 12957 5 37782 document 12957 All Figures.odt application/vnd.oasis.opendocument.text 36312221f32c02b02d2f9091d189b896 MD5 11385710 2020-01-04 13:18:10 https://researchdata.bath.ac.uk/683/10/All%20Figures.odt 683 10 10 application/vnd.oasis.opendocument.text other Figures from the associated manuscript en public cc_by

All Figures.odt

data 12958 4 37784 document 12958 ESI_CARBPOL-D-19-03008_R5.docx application/vnd.openxmlformats-officedocument.wordprocessingml.document 445bfb2f197271637bc5f4c0a24e0915 MD5 5273813 2020-01-04 13:18:49 https://researchdata.bath.ac.uk/683/11/ESI_CARBPOL-D-19-03008_R5.docx 683 11 11 application/vnd.openxmlformats-officedocument.wordprocessingml.document other Supplementary information en public cc_by

ESI_CARBPOL-D-19-03008_R5.docx

data 12960 1 37791 document 12960 indexcodes.txt text/plain 8f376c5fd0c1f19ca18788b016d485b7 MD5 4666 2020-01-04 13:28:18 https://researchdata.bath.ac.uk/683/13/indexcodes.txt 683 13 13 text/plain other Generate index codes conversion from other to indexcodes en public

indexcodes.txt

http://eprints.org/relation/isVersionOf https://researchdata.bath.ac.uk/id/document/12958 http://eprints.org/relation/isVolatileVersionOf https://researchdata.bath.ac.uk/id/document/12958 http://eprints.org/relation/isIndexCodesVersionOf https://researchdata.bath.ac.uk/id/document/12958 archive 9889 disk0/00/00/06/83 2020-01-10 12:03:53 2024-07-15 10:59:11 2020-01-10 12:03:53 data_collection show Hossain Kazi M. Zakir zh603@bath.ac.uk 0000-0002-4178-7271 University of Bath TRUE Calabrese Vincenzo V.Calabrese@bath.ac.uk 0000-0001-5974-9217 University of Bath FALSE da Silva Marcelo M.Alves.da.Silva@bath.ac.uk 0000-0002-1413-4021 University of Bath FALSE Bryant Saffron S.J.Bryant@bath.ac.uk 0000-0002-7202-3004 University of Bath FALSE Schmitt Julien J.M.F.Schmitt@bath.ac.uk 0000-0002-3452-6655 University of Bath FALSE Scott Janet L J.L.Scott@bath.ac.uk 0000-0001-8021-2860 University of Bath FALSE Edler Karen K.Edler@bath.ac.uk 0000-0001-5822-0127 University of Bath FALSE Dataset for 'Cationic surfactants as a non-covalent linker for oxidised cellulose nanofibrils and starch-based hydrogels' BY0060 CM0050 GB0020 dept_chem Rheological properties of hydrogels composed of TEMPO-oxidised cellulose nanofibrils (OCNF)-starch in the presence of cationic surfactants were investigated in this study. The dataset includes rheology (oscillatory frequency and amplitude sweeps, viscosity), zeta-potential, starch-iodine test data of OCNF/starch hydrogels in presence of cationic surfactants, like dodecyltrimethylammonium bromide (DTAB) and cetyltrimethylammonium bromide (CTAB) surfactants. 2019-12-31 University of Bath public In this study, cationic surfactant (DTAB and CTAB) induced gelation of OCNF and soluble starch in water systems was investigated to determine their rheological behaviour. The increase of storage modulus of OCNF/surfactant hydrogels with increasing surfactant concentration demonstrates the progressive increase of the “stiffness” of the gels suggesting an electrostatic attraction between OCNF and DTAB/CTAB due to their oppositely charged moieties. RightsHolder University of Bath Engineering and Physical Sciences Research Council https://doi.org/10.13039/501100000266 EP/N033310/1 New Enzymatically Produced Interpenetrating Starch-Cellulose Gels case cent_c3bio cent_nan cent_regen_med cent_sus_tech Gels were prepared by mixing various ratios of OCNF and starch (Soluble S9765, Sigma Aldrich, UK) solution (1:0.5 and 1:1 wt%) followed by vortex mixing until hydrogels were obtained. The required amount of cationic surfactants (Dodecyltrimethylammonium bromide (DTAB, purity≥98%, MW 308.34 g mol-1, Sigma-Aldrich, UK), cetyltrimethylammonium bromide (CTAB, purity 99%, MW 364.45 g mol-1, ACROS Organic, Fisher-Scientific, UK) were added to the starch solution prior to mixing with OCNF during the gel formation. Rheological tests were performed using a stress-controlled rheometer (Discovery HR-3, TA Instruments, USA) equipped with a sandblasted plate-plate stainless steel geometry (40 mm) at 25oC. Approximately 1 mL of the gel was placed between the plates (with a plate-plate gap of 0.5 mm) and frequency, amplitude and flow sweeps were measured to determine the viscoelastic properties of the gels. Frequency sweeps were conducted, within the linear viscoelastic range, in strain control mode at 0.5% strain with an angular frequency range from 0.1 to 100 rad s-1. Amplitude sweeps were measured at an angular frequency of 1 Hz (6.28 rad s 1) covering the strain ranging from 0.01 to 50%. Finally, flow curves were measured to study the viscosity response of the sample to shearing, with a shear rate ranging from 0.01 to 100 s-1. ζ-potential measurements were conducted using a Zeta-sizer (Malvern Zeta-sizer Nano ZSP®, UK). Dilute solution (0.1 wt%) of samples in DI water were placed in the capillary electrode cell and the ζ-potentials measured as an average of 5 measurements from 100 scans each. Iodine stock solution (50% of Lugol’s solution) was prepared by dissolving 0.25 g of iodine (Fisher Scientific, UK) and 0.5 g of potassium iodide (Sigma-Aldrich, UK) in 150 mL of DI water under magnetic stirring. Then 30 µl of the prepared iodine solution was added to each 5mL of diluted (25 times) gel sample before measuring the absorbance using a UV/visible spectrometer (Varian Cary 50 Probe) by scanning over the wavelength range of 290 to 800 nm. The following instruments were used: - Stress-controlled rheometer (Discovery HR-3, TA Instruments, USA); - Zeta-sizer (Malvern Zeta-sizer Nano ZSP®, UK); - UV/visible spectrometer (Varian Cary 50 Probe). https://doi.org/10.1016/j.carbpol.2019.115816 2018-06-12 2019-05-15 en 1 10.15125/BATH-00683 https://doi.org/10.1016/j.carbpol.2019.115816 pub