Hexyltrimethylammonium Bromide Solutions at 278.15: A Dielectric Investigation on Micelle Relaxation and Hydration

We have examined the dielectric relaxation of hexyltrimethylammonium bromide solutions at 278.15 K and at 298.15 K in order to investigate the impact of hydrophobic and hydrophilic hydration on temperature. The dynamics of micelles and their hydrophilic and hydrophobic hydration of n-hexyltrimeth...

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Main Authors: N., Rohman, T., Mohiuddin, I., Khan, R., Selvaraj
Format: Article
Language:English
English
Published: INTI International University 2023
Subjects:
Online Access:http://eprints.intimal.edu.my/1877/
http://eprints.intimal.edu.my/1877/1/joit2023_17r.pdf
http://eprints.intimal.edu.my/1877/2/325
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author N., Rohman
T., Mohiuddin
I., Khan
R., Selvaraj
author_facet N., Rohman
T., Mohiuddin
I., Khan
R., Selvaraj
author_sort N., Rohman
building INTI Institutional Repository
collection Online Access
description We have examined the dielectric relaxation of hexyltrimethylammonium bromide solutions at 278.15 K and at 298.15 K in order to investigate the impact of hydrophobic and hydrophilic hydration on temperature. The dynamics of micelles and their hydrophilic and hydrophobic hydration of n-hexyltrimethylammonium bromide solutions are investigated at a low temperature of 278.15 K using dielectric measurements. The concentration ranged from 0.0982 to 0.8534 mol•dm-3, and the frequency range covered from 0.2 to 89 GHz. Four Debye processes added together fit all the spectra. Micelle relaxation processes are visible below the critical micelle concentration, which denotes premicellar aggregation. The relaxation mechanisms were investigated with the aid of Grosse's hypothesis. Due to the radial and tangential diffusion of unbound and bound counter ions around the charged micelles, the two low frequencies are consequently ascribed to these processes. The hydrophilic hydration, in which the water molecules are entirely immobilised, is shown to be temperature independent. On the other side, at lower temperatures, the hydrophobic hydration rises
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spelling intimal-18772025-07-21T08:54:39Z http://eprints.intimal.edu.my/1877/ Hexyltrimethylammonium Bromide Solutions at 278.15: A Dielectric Investigation on Micelle Relaxation and Hydration N., Rohman T., Mohiuddin I., Khan R., Selvaraj QC Physics T Technology (General) TA Engineering (General). Civil engineering (General) TP Chemical technology We have examined the dielectric relaxation of hexyltrimethylammonium bromide solutions at 278.15 K and at 298.15 K in order to investigate the impact of hydrophobic and hydrophilic hydration on temperature. The dynamics of micelles and their hydrophilic and hydrophobic hydration of n-hexyltrimethylammonium bromide solutions are investigated at a low temperature of 278.15 K using dielectric measurements. The concentration ranged from 0.0982 to 0.8534 mol•dm-3, and the frequency range covered from 0.2 to 89 GHz. Four Debye processes added together fit all the spectra. Micelle relaxation processes are visible below the critical micelle concentration, which denotes premicellar aggregation. The relaxation mechanisms were investigated with the aid of Grosse's hypothesis. Due to the radial and tangential diffusion of unbound and bound counter ions around the charged micelles, the two low frequencies are consequently ascribed to these processes. The hydrophilic hydration, in which the water molecules are entirely immobilised, is shown to be temperature independent. On the other side, at lower temperatures, the hydrophobic hydration rises INTI International University 2023-12 Article PeerReviewed text en cc_by_4 http://eprints.intimal.edu.my/1877/1/joit2023_17r.pdf text en cc_by_4 http://eprints.intimal.edu.my/1877/2/325 N., Rohman and T., Mohiuddin and I., Khan and R., Selvaraj (2023) Hexyltrimethylammonium Bromide Solutions at 278.15: A Dielectric Investigation on Micelle Relaxation and Hydration. Journal of Innovation and Technology, 2023 (17). pp. 1-10. ISSN 2805-5179 http://ipublishing.intimal.edu.my/joint.html
spellingShingle QC Physics
T Technology (General)
TA Engineering (General). Civil engineering (General)
TP Chemical technology
N., Rohman
T., Mohiuddin
I., Khan
R., Selvaraj
Hexyltrimethylammonium Bromide Solutions at 278.15: A Dielectric Investigation on Micelle Relaxation and Hydration
title Hexyltrimethylammonium Bromide Solutions at 278.15: A Dielectric Investigation on Micelle Relaxation and Hydration
title_full Hexyltrimethylammonium Bromide Solutions at 278.15: A Dielectric Investigation on Micelle Relaxation and Hydration
title_fullStr Hexyltrimethylammonium Bromide Solutions at 278.15: A Dielectric Investigation on Micelle Relaxation and Hydration
title_full_unstemmed Hexyltrimethylammonium Bromide Solutions at 278.15: A Dielectric Investigation on Micelle Relaxation and Hydration
title_short Hexyltrimethylammonium Bromide Solutions at 278.15: A Dielectric Investigation on Micelle Relaxation and Hydration
title_sort hexyltrimethylammonium bromide solutions at 278.15: a dielectric investigation on micelle relaxation and hydration
topic QC Physics
T Technology (General)
TA Engineering (General). Civil engineering (General)
TP Chemical technology
url http://eprints.intimal.edu.my/1877/
http://eprints.intimal.edu.my/1877/
http://eprints.intimal.edu.my/1877/1/joit2023_17r.pdf
http://eprints.intimal.edu.my/1877/2/325