Surface and volume properties of dodecylethyldimethylammonium bromide and benzyldimethyldodecylammonium bromide

Harkot, Joanna; Jańczuk, Bronisław

doi:10.1016/j.jcis.2008.10.078

Cited by 9 publications

(3 citation statements)

References 24 publications

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“…Amorphous SiO 2 is a widely used adsorbent, ,,,− ,− , and the adsorbed layer structure of the nonionic surfactant alkyl polyoxyethylene ether (C n EO m ) was investigated using SANS − and ellipsometry . Benzyldimethyldodecylammonium halide (BDDA + X – , commonly X – = Cl – and Br – ) is one kind of quaternary ammonium surfactants and widely applied in clinical, cosmetic, and industrial areas. − However, research studies on the aggregation features of BDDA + X – at solid–liquid interfaces ,, as well as in solutions ,, are scarce. Harkot and Jańczuk studied the effect of BDDABr adsorption on the wetting of polytetrafluoroethylene and poly(methyl methacrylate) surfaces.…”

Section: Introductionmentioning

confidence: 99%

“…19 Benzyldimethyldodecylammonium halide (BDDA + X − , commonly X − = Cl − and Br − ) is one kind of quaternary ammonium surfactants and widely applied in clinical, cosmetic, and industrial areas. 28−31 However, research studies on the aggregation features of BDDA + X − at solid− liquid interfaces 30,32,33 as well as in solutions 29,34,35 are scarce. Harkot and Janćzuk 30 studied the effect of BDDABr adsorption on the wetting of polytetrafluoroethylene and poly(methyl methacrylate) surfaces.…”

Section: ■ Introductionmentioning

confidence: 99%

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Analysis of Adsorbed Layers of Benzyldimethyldodecylammonium Bromide on Silica Particles in Water Using the Sorbent Mass Variation Method

Jiang

Song

et al. 2018

Langmuir

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A “sorbent mass variation” (SMV) method has been suggested to investigate the adsorption at solid–liquid interfaces, which can provide information on the adsorbed layer structure including its thickness and composition. However, there has been little research focused on the method, and therefore, it is essential to examine its general applicability. Herein, the adsorption of benzyldimethyldodecylammonium bromide (BDDABr), a cationic surfactant, on silica (SiO2) nanoparticles (with ∼12 and 24 nm in size, denoted as S-SiO2 and L-SiO2, respectively) in water was investigated using the SMV method. The adsorption isotherms all show a linearly declining tendency in the saturated adsorption regime, consistent with the prediction of the SMV model. The adsorption is interpreted to form noncomplete bilayers (or isolated admicelles). The thicknesses of the adsorbed bilayers on S-SiO2 and L-SiO2 are estimated to be ∼2.9 and 2.7 nm, respectively, and the volume fractions of BDDABr in the saturated adsorbed layers are 0.63 and 0.68, respectively. In addition, the change in the Gibbs free energy of the adsorption process is also analyzed, showing its spontaneous nature. This work demonstrates that the SMV method is available for investigation on the adsorption of surfactants at solid–liquid interfaces, which can provide information on the structure and formation thermodynamics of adsorbed layers.

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Section: Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Analysis of Adsorbed Layers of Benzyldimethyldodecylammonium Bromide on Silica Particles in Water Using the Sorbent Mass Variation Method

Jiang

Song

et al. 2018

Langmuir

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“…[1][2][3][4] The properties of surfactant solutions change remarkably during micellization. Factors like structure of the surfactant, presence of additives (electrolytes=nonelectrolytes), temperature, pressure, pH, etc., have been known to affect the properties of aqueous micellar solution.…”

Section: Introductionmentioning

confidence: 99%

Micellization and Surface Properties of Alkanediyl-1,4-bis(tetradecyldimethylammonium Bromide) Gemini Surfactants with Dodecylethyldimethylammonium Bromide

Pulikkal

Wagay

Ismail

2014

Journal of Dispersion Science and Technology

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GRAPHICAL ABSTRACTMixed micellization and surface properties of three cationic gemini surfactants, viz., (butanediyl-), (pentanediyl-), (hexanediyl-)-1,4-bis(tetradecyldimethylammonium bromide) (14-s-14; s ¼ 4-6) with dodecylethyldimethylammonium bromide have been studied by conductometric, tensiometric, and fluorimetric techniques at 298 K. Values of cmc, ideal cmc(cmc Ã ), degree of counter ion dissociation (g), micellar mole fractions of the components, and interaction parameters have been determined. Further, activity coefficients of the components, surface excess concentration (C max ), minimum surface area per molecule (A min ), surface pressure at the cmc (p cmc ), average aggregation numbers of the micelles (N agg ), excess Gibbs free energy (DG m Ex ), and Gibbs free energy of micellization (DG 0 m ) were also calculated and discussed. The compositions of the mixed systems were varied between 0 and 1. It is observed that the values of cmc, g, X r 1 , X m 1 , and C max decreases whereas A min increases with augmentation of 14-s-14 (s = 4-6) mole fraction in the mixed systems. The negative values of interaction parameters (b r and b m ) obtained for mixed micelle formation indicate attractive interaction between the components leading to nonideality. The nonideal behavior has been theoretically treated by Clint's and Rubingh's model in light of regular solution theory.

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Adsorption of benzyldimethyldodecylammonium bromide on silica nanoparticles in water

Jiang

et al. 2018

Colloid Polym Sci

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Surface and volume properties of dodecylethyldimethylammonium bromide and benzyldimethyldodecylammonium bromide

Cited by 9 publications

References 24 publications

Analysis of Adsorbed Layers of Benzyldimethyldodecylammonium Bromide on Silica Particles in Water Using the Sorbent Mass Variation Method

Analysis of Adsorbed Layers of Benzyldimethyldodecylammonium Bromide on Silica Particles in Water Using the Sorbent Mass Variation Method

Micellization and Surface Properties of Alkanediyl-1,4-bis(tetradecyldimethylammonium Bromide) Gemini Surfactants with Dodecylethyldimethylammonium Bromide

Adsorption of benzyldimethyldodecylammonium bromide on silica nanoparticles in water

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