Al-Thabaiti, S.A. and Obaid, A.Y. and Khan, Z. and Al-Thubaiti, K.S. and Nabi, A. and Malik, M.A. (2016) Role of cationic gemini surfactants (m-s-m type) on the oxidation of d-glucose by permanganate. Journal of Molecular Liquids, 216. pp. 538-544. ISSN 0167-7322, DOI https://doi.org/10.1016/j.molliq.2016.01.055.
Full text not available from this repository.Abstract
Cationic gemini (m-s-m type; m = 16, s = 4,5,6) surfactants were used to determine the micelles assisted kinetics parameters, mechanism of permanganate-D-glucose redox system in an aqueous solution by means of UV-visible spectroscopy at 40 °C. Effects of different [gemini surfactant], [permanganate], [D-glucose] and temperature on the reaction rate were investigated. Various activation parameters such as activation energy (Ea), enthalpy of activation (ΔH#), free energy of activation (ΔG#), and entropy of activation (ΔS#) have been evaluated. Menger-Portony pseudo-phase model modified by Bunton was used to analyze the role of gemini surfactant on the rate constant. Spacer chain length of surfactants has significant impact on the oxidation -reduction kinetics. A suitable mechanism reliable with the experimental results has been proposed and discussed. The cationic gemini surfactant micellar media are relatively more efficient than conventional monomeric surfactant i.e. cetyltrimethylammonium bromide (CTAB).
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Uncontrolled Keywords: | Cationic gemini surfactant; Micellar catalysis; d-Glucose; Permanganate |
| Subjects: | Q Science > Q Science (General) Q Science > QD Chemistry |
| Divisions: | Faculty of Science > Department of Chemistry |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 14 Nov 2017 08:24 |
| Last Modified: | 14 Nov 2017 08:24 |
| URI: | http://eprints.um.edu.my/id/eprint/18267 |
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