Water Structure Modification by Sugars and Its Consequence on Micellization Behavior of Cetyltrimethylammonium Bromide in Aqueous Solution

Afrin, Tanjina; Karobi, Sadia Nazneen; Rahman, Mohammad Mizanur; Mollah, M. Yousuf A.; Susan, Md. Abu Bin Hasan

doi:10.1007/s10953-013-0050-6

Cited by 24 publications

(17 citation statements)

References 24 publications

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“…For CTAB in aqueous solution at 25 ºC, the CMC was determined as 9.0×10 -4 M, which is in agreement with literature data [13,24,25] . The value of  was determined as 0.25 and total fraction of micellar head groups neutralized () was therefore 0.75, which also agrees with literature [23,26] .…”

Section: Aqueous Solutionsupporting

confidence: 90%

“…The variation in specific conductivity with change in concentration of aqueous solutions 8 CMC [13,23] . The degree of counterion dissociation i.e.…”

Section: Aqueous Solutionmentioning

confidence: 99%

“…The aggregation behavior of surfactants can be changed by varying different parameters, of which addition of a water structure modifier additive, such as urea appears to be a very promising one [1] . Quite reasonably, there has been an upsurge of interest in understanding the effect of urea on the micellization behavior of surfactants in aqueous solution [4][5][6][7][8][9][10][11][12][13] . The interest has grown from the observation that urea causes denaturation of proteins, polypeptides and biopolymers and inhibits formation of micellar aggregates [3] .…”

mentioning

confidence: 99%

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Effect of Urea on the Kinetics of the Alkaline Hydrolysis of Crystal Violet Catalyzed by Aqueous Micellar Solutions of Cetyltrimethylammonium Bromide

Arzuman

Karobi

Islam

et al. 2014

Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-

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Kinetics of alkaline hydrolysis of crystal violet (CV) in micellar solutions of a cationic surfactant, cetyltrymethylammonium bromide (CTAB) both in absence and presence of urea was investigated. The reaction was catalyzed by micelles of CTAB and addition of urea caused a gradual decrease in the rate of the reaction. Kinetic results could be correlated with change in micellization behavior of CTAB by water structure breaking effect of urea. The kinetic profiles have been fitted with the simulated profiles on the basis of pseudo-phase ion-exchange model and best fits with reasonable parameters could be obtained.

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Section: Aqueous Solutionsupporting

confidence: 90%

“…The variation in specific conductivity with change in concentration of aqueous solutions 8 CMC [13,23] . The degree of counterion dissociation i.e.…”

Section: Aqueous Solutionmentioning

confidence: 99%

mentioning

confidence: 99%

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Effect of Urea on the Kinetics of the Alkaline Hydrolysis of Crystal Violet Catalyzed by Aqueous Micellar Solutions of Cetyltrimethylammonium Bromide

Arzuman

Karobi

Islam

et al. 2014

Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-

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“…ʟ-Ascorbic acid acts simultaneously as a cosolvent and as a structure-breaking solute, which lowers the hydrophobic effect in the micellar solutions, hence resulting in the enhancement of the CMC values of the surfactants. This gets support from the fact (Afrin et al, 2013;Harutyunyan et al, 1980Harutyunyan et al, , 2013Jones and Talley, 1933) that the water structure breakers cause the salting-in of the nonpolar groups of the monomeric form of amphiphiles and as a result the CMC values of the surfactants get elevated.…”

Section: Resultsmentioning

confidence: 87%

Elucidation of Interactions between l‐Ascorbic Acid and Mixed Micellar Aggregates of Catanionic {Sodium Dodecylsulfate + Cetyltrimethylammonium Bromide} Surfactants via Physicochemical and Spectroscopic Studies

Banipal

Sohal

Arti

et al. 2019

J Surfact & Detergents

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Surfactant micelles mimic the microenvironment present in biological systems and can act as a medium for antioxidant studies. Moreover, the thermodynamic profile of micellization and spectroscopic studies provides very good information about interactions in these systems. Thus, the mixed micellar behavior of sodium dodecylsulfate (SDS) and cetyltrimethylammonium bromide (CTAB) at varying mole fractions of SDS was studied in (0.01, 0.02, and 0.03) mol kg−1 ʟ‐ascorbic acid(aq) solutions with the aid of various techniques viz., conductivity, density and sound velocity, and spectroscopy. From the CMC values of the mixed surfactants, the degree of ionization (β) and thermodynamic parameters (normalΔGm°, normalΔHm°, and normalΔSm°) were evaluated at 298.15, 308.15, and 318.15 K. The UV absorption spectra were recorded in (1–3) × 10−4 mol kg−1 ʟ‐ascorbic acid(aq) solutions at various mole fractions of SDS. The proton (1H) NMR spectra of mixed (SDS + CTAB) surfactants were studied in (0.01–0.03) mol kg−1 ʟ‐ascorbic acid solutions. Hydrodynamic diameters (Dh) of mixed micellar aggregates were obtained from the dynamic light scattering (DLS) studies. The present studies suggest the predominance of ionic‐hydrophilic interactions between the ionic head groups {O‐SO3− or N+ (CH3)3} of surfactants and the polar (–OH, –C=O and –O–) sites of ʟ‐ascorbic acid.

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“…Native structure and dynamics of liquid water have, therefore, been a very important area of research. No single model has yet been accepted to describe various anomalous properties of water . Degrees of hydrogen bonding and consequently fundamental properties of water can vary interestingly with temperature and different additives.…”

Section: Introductionmentioning

confidence: 99%

Temperature Perturbation on Hydrogen Bonding in Aqueous Solutions at Different Amide Concentrations

et al. 2016

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A series of amides with variation in the number of methyl and amine groups were used as additives of water. Perturbations of water structure by variation of temperature and concentration of urea, formamide, N‐methylformamide, and N,N‐dimethylformamide was systematically analyzed by vibrational spectroscopy. The water absorption band was critically analyzed by 2D‐correlation spectroscopy, its deconvolution and derivative spectra. Degree of perturbation of the water structure was evaluated to provide strong evidence on molecular level interactions, self‐aggregation, and modification of the network of water structure. Clusters of water‐amides were energetically optimized and consequent theoretical vibrational frequencies of C−N and C=O groups of amide were found to be consistent with experimental frequencies. The water structure underwent disruption through formation of hydrogen bond with amide; while self‐aggregated amide and hydrophobic alkyl group assisted formation of ice‐like network around them.

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Water Structure Modification by Sugars and Its Consequence on Micellization Behavior of Cetyltrimethylammonium Bromide in Aqueous Solution

Cited by 24 publications

References 24 publications

Effect of Urea on the Kinetics of the Alkaline Hydrolysis of Crystal Violet Catalyzed by Aqueous Micellar Solutions of Cetyltrimethylammonium Bromide

Effect of Urea on the Kinetics of the Alkaline Hydrolysis of Crystal Violet Catalyzed by Aqueous Micellar Solutions of Cetyltrimethylammonium Bromide

Elucidation of Interactions between l‐Ascorbic Acid and Mixed Micellar Aggregates of Catanionic {Sodium Dodecylsulfate + Cetyltrimethylammonium Bromide} Surfactants via Physicochemical and Spectroscopic Studies

Temperature Perturbation on Hydrogen Bonding in Aqueous Solutions at Different Amide Concentrations

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