2017-Sustainable Industrial Processing Summit
SIPS 2017 Volume 3. Gaune-Escard Intl. Symp. / Molten Salt and Ionic Liquid
| Editors: | Kongoli F, Fehrmann R, Gadzuric S, Gong W, Seddon KR, Malyshev V, Iwata S |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2017 |
| Pages: | 151 pages |
| ISBN: | 978-1-987820-65-2 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Aggregation Behavior of New Thiazolium-Based Surface-Active Ionic Liquids and Salts - Experimental and DFT Study
Milan Vranes1; Slobodan Gadzuric1; Snezana Papovic1; Aleksandar Tot1; Marija Bester Rogac2; Jovana Panic1;1FACULTY OF SCIENCES, UNIVERSITY OF NOVI SAD, Novi Sad, Serbia and Montenegro (formerly Yugoslavia); 2FACULTY OF CHEMISTRY AND CHEMICAL TECHNOLOGY, UNIVERSITY OF LJUBLJANA, Ljubljana, Slovenia;
Type of Paper: Regular
Id Paper: 135
Topic: 13
Abstract:
Two thiazolium-based surface active agents, ionic liquid (SAIL), N-dodecyl-thiazolium bromide and low melting point salt, N-dodecyl-4-methylithiazolium bromide were newly synthesized and their thermal stability were determined by TG and DSC. Antibacterial activity of these SAILs was determined by disc diffusion method on Gram-negative bacteria Pseudomonas aerugonosa and Escherichia coli as well on Gram-positive bacteria Staphylococcus aureus and Listeria monocytogenes. The self-assembly behaviors of newly synhesized SAILs in aqueous solutions were systematically explored. Results of surface tension and conductivity measurements showed that both surfactants display a superior surface activity in aqueous solutions compared to the imidazolium-based SAIL, 1-dodecyl-3-methylimidazolium bromide (C12mimBr). Thermodynamic parameters of micelle formation were calculated and these parameters were related with results obtained from volumetric measurements. DFT calculations showed that methyl group on the thiazole ring has important role in the formation of micelles.