Micellization in aqueous solutions of monoalkyl phosphate salts

Arakawa, Jun; Pethica, B. A.

doi:10.1016/0021-9797(80)90469-5

Cited by 31 publications

(37 citation statements)

References 18 publications

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“…[1] and close to those of the corresponding alkylsulfates [9], these suffactants are indeed quite similar, the interatomic distances being d(S-O)=1.44 /k and d(P-O) = 1.50/k. The small systematic difference between our cmc values and those of ref.…”

Section: Critical Concentrations Of Micellizationmentioning

confidence: 91%

“…This neutralization have been carried up to the right pH, the concentration of alkylphosphate being less than the critical concentration of micellization (cmc) as the pH varies when the concentration is around the cmc [1].…”

Section: Methodsmentioning

confidence: 99%

“…The small systematic difference between our cmc values and those of ref. [1] may be due to the way of plotting the conductivity curves as shown in ref. [9].…”

Section: Critical Concentrations Of Micellizationmentioning

confidence: 99%

“…Their amphiphilic properties have been reported in ref. [1] for monosodium salts and in ref. [2] and [3] for disodium salts.…”

Section: Introductionmentioning

confidence: 98%

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NMR investigation of the micellar properties of monoalkylphoshpates

Chevalier

Chachaty

1984

Colloid & Polymer Sci

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Abstract:The micellization of several monoalkylphoshpates with chain lenghts from 6 to 10 carbons have been investigated by 31p and "C NMR spectroscopy with some additional electrical conductivity, density and small angle neutron scattering measurements.The major part of this study was performed on sodium monooctylphosphate. The critical concentration of micellization is 0.14 M, the partial molar volume is 170 cm3/mole in the micellar state. Small angle neutron scattering measurements on a 0.5 molar solution lead to an aggregation number of 43. NMR studies over the whole concentration range show that the pseudophase model holds. The geometry around the polar head is found almost unchanged upon micellization. The frequency denpendence of the 31p longitudinal relaxation is interpreted by an isotropic fas motion (rR = 6.5 x 10 -11 s for the free monomers and by a strongly anisotropic motion with D II/D• ~ 10 and ro = (6 D) -1=1.25 x 10-9s in the micellar state.

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Section: Critical Concentrations Of Micellizationmentioning

confidence: 91%

Section: Methodsmentioning

confidence: 99%

“…The small systematic difference between our cmc values and those of ref. [1] may be due to the way of plotting the conductivity curves as shown in ref. [9].…”

Section: Critical Concentrations Of Micellizationmentioning

confidence: 99%

“…Their amphiphilic properties have been reported in ref. [1] for monosodium salts and in ref. [2] and [3] for disodium salts.…”

Section: Introductionmentioning

confidence: 98%

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NMR investigation of the micellar properties of monoalkylphoshpates

Chevalier

Chachaty

1984

Colloid & Polymer Sci

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“…[23] To gain further information on the complexation between C n PNa 2 and β-CD we measured the CMCs of some C n PNa 2 [24] species (5dϪg, n ϭ 12, 14, 16, 18) in water and in water solutions containing variable amounts of β-CD ( Table 2).…”

Section: Cmc Datamentioning

confidence: 99%

Supramolecular Complex Formation: A Study of the Interactions between β‐Cyclodextrin and Some Different Classes of Organic Compounds by ESI‐MS, Surface Tension Measurements, and UV/Vis and ¹H NMR Spectroscopy

et al. 2003

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The ability of several organic compounds [alcohols 1 and 2, the corresponding phosphate esters 3 and 4 and their sodium salts 5 and 6 as well as some commercial surfactants such as C14DMAO (7, zwitterionic), SDS (8, anionic) and CTABr (9, cationic)] to produce supramolecular complexes with β‐cyclodextrin has been investigated by four different techniques (ESI‐MS, surface tension measurements, UV/Vis and 1H NMR spectroscopy). The data collected have allowed information about the formation of complexes and the location of the guest in the host to be gained. Comparison of the results obtained for phosphate esters and their salts, for both saturated and unsaturated derivatives, has made it possible to evaluate the factors that affect the stability of the supramolecular complexes under the different experimental conditions used. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)

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Vesikelbildung aus reaktiven Tensiden

2008

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Zwitterionische Geminivesikel: Alkylphosphothioate und N‐(2‐Bromethyl)‐N,N‐dimethylalkylammonium‐Tenside reagieren quantitativ in wässriger Pufferlösung zu zwitterionischen Geminitensiden. Die Produkte bilden spontan Lipidvesikel, die sich ähnlich wie Phospholipidvesikel verhalten. Die zwitterionischen Geminivesikel schließen wasserlösliche Moleküle ein; nach Zusatz der einkettigen Vorstufen wird ein quantitatives Wachstum beobachtet.

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Micellization in aqueous solutions of monoalkyl phosphate salts

Cited by 31 publications

References 18 publications

NMR investigation of the micellar properties of monoalkylphoshpates

NMR investigation of the micellar properties of monoalkylphoshpates

Supramolecular Complex Formation: A Study of the Interactions between β‐Cyclodextrin and Some Different Classes of Organic Compounds by ESI‐MS, Surface Tension Measurements, and UV/Vis and ¹H NMR Spectroscopy

Vesikelbildung aus reaktiven Tensiden

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Micellization in aqueous solutions of monoalkyl phosphate salts

Cited by 31 publications

References 18 publications

NMR investigation of the micellar properties of monoalkylphoshpates

NMR investigation of the micellar properties of monoalkylphoshpates

Supramolecular Complex Formation: A Study of the Interactions between β‐Cyclodextrin and Some Different Classes of Organic Compounds by ESI‐MS, Surface Tension Measurements, and UV/Vis and 1H NMR Spectroscopy

Vesikelbildung aus reaktiven Tensiden

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Supramolecular Complex Formation: A Study of the Interactions between β‐Cyclodextrin and Some Different Classes of Organic Compounds by ESI‐MS, Surface Tension Measurements, and UV/Vis and ¹H NMR Spectroscopy