Nucleation process of micelle formation in apolar solvents

Eicke, Hans‐Friedrich; Christen, H.

doi:10.1016/0021-9797(74)90162-3

Cited by 82 publications

(37 citation statements)

References 12 publications

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“…Toluene (technical grade) was dried with sodium sand and distilled before use. Di(ethyl-2-hexyl) sodium sulfosuccinate (AOT) was purified according to the method of Eicke (15). AOT was dissolved in benzene and crystallized.…”

Section: Methodsmentioning

confidence: 99%

Preparation and Properties of Monodisperse Magnetic Cobalt Colloids Grafted with Polyisobutene

Pathmamanoharan

Philipse

1998

Journal of Colloid and Interface Science

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Section: Methodsmentioning

confidence: 99%

Preparation and Properties of Monodisperse Magnetic Cobalt Colloids Grafted with Polyisobutene

Pathmamanoharan

Philipse

1998

Journal of Colloid and Interface Science

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“…[9] Among them, sodium bis(2-ethylhexyl) phosphate (NaDEHP, Scheme 1) has the particular property to give rise to RMs in organic solvents, as first pointed out by Eicke and Christen. [10] NaDEHP is of particular interest for comparison with AOT because of its similar structure and also because it has a similar phosphate head group to that of phospholipids.…”

Section: Introductionmentioning

confidence: 99%

Comparison between Two Anionic Reverse Micelle Interfaces: The Role of Water–Surfactant Interactions in Interfacial Properties

Quintana¹,

Falcone²,

Silber³

et al. 2011

ChemPhysChem

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The water/sodium bis(2-ethylhexyl) phosphate (NaDEHP) reverse micelle (RM) system is revisited by using, for the first time, molecular probes to investigate interface properties. The solvatochromic behavior of 1-methyl-8-oxyquinolinium betaine (QB) and 6-propionyl-2-(N,N-dimethyl)aminonaphthalene (PRODAN) in the water/NaDEHP/toluene system is studied, and the results are compared with those obtained in water/sodium 1,4-bis(2-ethylhexyl) sulfosuccinate (AOT)/toluene RM media. The results demonstrate that the micropolarity, microviscosity, interfacial water structure, molecular probe partition, and intramolecular electron-transfer processes are dramatically altered for NaDEHP RM interfaces in comparison to the AOT systems. Because of organic nonpolar solvent penetration into the interface, NaDEHP RM media offer an interface with lower micropolarity and microviscosity than AOT media. Also, the interfacial water in the NaDEHP system shows enhanced water-water hydrogen-bond interaction in comparison with bulk water. The AOT RM interface represents a unique environment for PRODAN to undergo dual emission.

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“…The third model introduced by Eicke [18] (referred to as the E model) postulates that three monomers unite to form nuclei for the micellization process [19]. These nuclei form linear aggregates via a kind of SA model.…”

Section: Resultsmentioning

confidence: 99%

Effects of ageing conditions and block copolymer concentration on the stability and micellization of P123-Ti4+ sols prepared by the templating method

et al. 2010

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In the work reported here we studied, for the first time, the effects of ageing conditions (temperature and time) on the stability and micellization of two sets of sols with different P123 block copolymer (BC) concentrations by use of dynamic light scattering (DLS). Further, for a comparative study the aggregation/ clustering behavior of pure P123 in IPA solution was also examined by DLS, and 1 H NMR, and Raman spectroscopy at room temperature. Different ageing regimes applied to the samples prepared included: (i) in-situ ageing of the sols in the sealed capillary cell of the DLS system at room temperature for 0, 1, 2, 3, 4, 5, 6, and 19 h, (ii) ageing of the sols in a Teflon-lined sealed vessel at 50, 55, 60, and 65°C for 30 min, and (iii) isothermal ageing of the synthesized sols at 50°C for 1, 4, 8, and 14 days. On the basis of the results obtained it is shown that both ageing time and temperature have remarkable effects on the clustering and aggregation of unimer/ micelles formed in the sol system studied. Further, quantitative analysis of interparticle potential energy carried out for the prepared sol at low concentration confirmed that steric interactions play the major role among the other contributing sources of energy. This is mainly related to the presence of BC and the complex polymer structure formed by acetyl acetone (ACAC). Moreover, on the basis of the calculated stability ratio for this sol, we believe that reaction-limited cluster aggregation (RLCA) is possibly the major governing mechanism. Finally, kinetic and dynamic aspects of the micellar aggregates formed are also discussed in this paper.

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Nucleation process of micelle formation in apolar solvents

Cited by 82 publications

References 12 publications

Preparation and Properties of Monodisperse Magnetic Cobalt Colloids Grafted with Polyisobutene

Preparation and Properties of Monodisperse Magnetic Cobalt Colloids Grafted with Polyisobutene

Comparison between Two Anionic Reverse Micelle Interfaces: The Role of Water–Surfactant Interactions in Interfacial Properties

Effects of ageing conditions and block copolymer concentration on the stability and micellization of P123-Ti4+ sols prepared by the templating method

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