期刊
CHEMISTRYSELECT
卷 3, 期 44, 页码 12652-12660出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/slct.201802169
关键词
Deep Eutectic Solvents (DESs); Density; Dipolarity; Dynamic Viscosity; Electrical Conductance; Microviscosity; Physicochemical Properties; Surfactants
资金
- Science and Engineering Research Board (SERB), Department of Science and Technology (DST), Government of India [EMR/2016/005053]
- DST-SERB
- University Grants Commission (UGC), Government of India
- Council of Scientific and Industrial Research (CSIR), Government of India
Deep eutectic solvents (DESs) have emerged as nontoxic and inexpensive alternatives to both ionic liquids and common volatile organic solvents. Role of DESs in sustaining and effecting surfactant self-assemblies has garnered interest only recently. Effect of addition of DESs Reline and Glyceline, constituted of salt choline chloride (ChCl) and different H-bond donors (HBDs) urea and glycerol, respectively, in 1 : 2 mole ratios, on the physicochemical properties of four structurally-different aqueous micellar solutions of anionic sodium dodecylsulfate (SDS), cationic dodecyltrimethylammonium bromide (DTAB), zwitterionic dodecyl sulfobetaine (SB-12) and nonionic Triton X-100 (TX-100) is assessed. It is observed that the changes in the properties investigated are contingent, in most part, on the structure of the surfactant as well as on the identity of the DES. Properties of the anionic SDS micellar solutions are affected the most by the addition of the DESs. The change in the properties of an aqueous micellar solution due to the addition of a DES may not always be a result of the cumulative change due to the addition of the constituents of the DES. In general, the salt ChCl of the DESs is found to dominate the changes as compared to the HBDs urea/glycerol. Overall, DESs emerge as substances having potential to favorably modify the key properties of micellar media.
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