Adsorption of 1,3-Dioxane Derivatives at Mercury and Free Interfaces

Adamczyk, Zbǐgniew; Burczyk, Bogdan; Para, G.; Piasecki, Andrzej

doi:10.1006/jcis.1996.0115

Cited by 5 publications

(3 citation statements)

References 8 publications

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“…The purity of KCl stock solution was further checked by the tensammetric measurements performed according to the method described elsewhere. 22 No capacitance change of the hanging mercury electrode was observed for 1 h experiments.…”

Section: Methodsmentioning

confidence: 95%

“…KCl was further cleaned by manifold recrystallization from six times distilled water obtained according to the procedure described earlier, and then roasted for 8 h at a temperature of 500 °C. The purity of KCl stock solution was further checked by the tensammetric measurements performed according to the method described elsewhere . No capacitance change of the hanging mercury electrode was observed for 1 h experiments.…”

Section: Methodsmentioning

confidence: 99%

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Influence of Ionic Strength on Surface Tension of Cetyltrimethylammonium Bromide

1999

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The effect of KCl addition on the surface tension of aqueous solutions of cetyltrimethylammonium bromide (CTAB) was measured by the drop-weight method. A significant reduction in the solution surface tension was observed with increasing electrolyte concentration in accordance with previous literature data obtained for the CTAB/NaBr system. However, in contrast to these results, no indication of cloud point appearance or CTAB dimerization was observed for KCl concentration reaching 1 M. The relative surface excess of CTAB at cmc was determined from the Gibbs equation. This quantity was found to decrease from 6.9 × 10-10 to 5.3 × 10-10 mol/cm2 when the KCl bulk concentration was varied between 0 and 1 M. The experimental surface tension data were quantitatively interpreted in terms of the theoretical model based on the assumption that the surfactant and counterions undergo nonequivalent adsorption within the Stern layer which consequently acquires a net charge. The distribution of electric potential in this layer was calculated according to the modified Stern model, whereas the diffuse part of the double layer was described using the Gouy−Chapman model.

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Section: Methodsmentioning

confidence: 95%

Section: Methodsmentioning

confidence: 99%

Influence of Ionic Strength on Surface Tension of Cetyltrimethylammonium Bromide

1999

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“…Alkyl derivatives of 1,3-dioxane are interesting amphiphiles to study the influence of changes in the headgroup composition and configuration on the surfactants' adsorption properties. [1][2][3][4][5] In refs 1-3 we reported on effects of stereochemistry on the adsorption properties of surfaceactive cis-and trans-2-n-alkyl-5-hydroxy-1,3-dioxanes. Out of the four geometric isomers of glycerol acetals, cisand trans-2-n-alkyl-4-hydroxymethyl-1,3-dioxolanes and cis-and trans-2-n-alkyl-5-hydroxy-1,3-dioxanes, 6 the latter revealed not only distinct differences in their surface properties with respect to the molecules' stereochemical configuration [1][2][3] but showed also characteristic alternation effects of the even/odd-numbered n-alkyl chains, 2 , i.e., it was found that subtle differences in the molecules' geometry are distinctly reflected in their adsorption properties.…”

Section: Introductionmentioning

confidence: 99%

Adsorption Properties of Diastereomeric 2-n-Alkyl-5-methoxy-1,3-dioxanes at the Air/Water Interface

et al. 2000

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The adsorption properties of diastereomerically pure cis-and trans-2-n-alkyl-5-methoxy-1,3-dioxanes (alkyl: n-C3H7, n-C4H9, and n-C5H11) at the air/water interface at 295 K were investigated using surface tension measurements of surface-chemically pure solutions. The surface parameters, i.e., the standard free energy of adsorption, ∆G o ad, the minimum surface area demand per molecule adsorbed, Amin, and the surface interaction parameter, H s , reveal distinct differences with respect to the molecules' stereochemistry. The adsorption parameters of these compounds are compared with those of the related cis-and trans-2-n-alkyl-5-hydroxy-1,3-dioxane derivatives. The surface parameters standard free energy and surface interaction of the corresponding homologous series of the cis-and trans-2-n-alkyl-5-methoxy-1,3-dioxanes and of the cis-and trans-2-n-alkyl-5-hydroxy-1,3-dioxanes differ considerably. However, the cross-sectional areas of the two cis and trans homologous series each approach practically identical limiting values.

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On the Adsorption of Octanoic Acid at the Mercury/Electrolyte and Air/Water Interfaces

Avranas

Retter

Lunkenheimer

et al. 1997

Journal of Colloid and Interface Science

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Adsorption of 1,3-Dioxane Derivatives at Mercury and Free Interfaces

Cited by 5 publications

References 8 publications

Influence of Ionic Strength on Surface Tension of Cetyltrimethylammonium Bromide

Influence of Ionic Strength on Surface Tension of Cetyltrimethylammonium Bromide

Adsorption Properties of Diastereomeric 2-n-Alkyl-5-methoxy-1,3-dioxanes at the Air/Water Interface

On the Adsorption of Octanoic Acid at the Mercury/Electrolyte and Air/Water Interfaces

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