Self-organization in complexes of polyacids with oppositely charged surfactants

Kasaikin, V.A.; Zakharova, Julia

doi:10.1016/s0927-7757(98)00759-6

Cited by 15 publications

(15 citation statements)

References 10 publications

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“…It is known that PSCs can be soluble or insoluble in aqueous media. [1][2][3] The solubility of PSC species in aqueous media is provided by the free, not bound with the surfactant, monomer units of the polyelectrolyte molecule. 27 The composition region of water-soluble PSC formation is limited by a certain composition of the reaction mixture (Z lim ) above which phase separation occurs.…”

Section: Resultsmentioning

confidence: 99%

“…27 The composition region of water-soluble PSC formation is limited by a certain composition of the reaction mixture (Z lim ) above which phase separation occurs. 3,27 In the absence of organic additives, water-soluble PEVP-SDS complexes are formed in a wide range of Z up to Z lim % 0.45 ( Figs. 2 and 3, curve 1).…”

Section: Resultsmentioning

confidence: 99%

“…The values of sedimentation coefficient (S) were calculated as described earlier in the literature. 3 The experimental error of S determination was about 10-15%.…”

Section: High-speed Sedimentationmentioning

confidence: 97%

“…1,2 Segregation of surfactant ions leading to generation of intracomplex micellar phase was shown to be a necessary condition of the polyelectrolyte-oppositely charged surfactant complex (PSC) forming. 3 PSCs represent a perspective type of self-assembling polymer micellar systems that can be used for solving numerous ecological problems, e.g. purification of wastewater from organic compounds, 4 due to the ability of an intracomplex micellar phase to solubilize organic compounds of different chemical nature.…”

Section: Introductionmentioning

confidence: 99%

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Effect of organic additives on formation and structure of polyelectrolyte‐oppositely charged surfactant complexes

Zakharova

Otdel’nova

Aliev

et al. 2006

Polymers for Advanced Techs

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Effect of butanol and Triton X-100 on formation, supramolecular organization and local dynamics of poly(N-ethyl-4-vinylpyridinium)-dodecyl sulfate complexes have been studied by UV spectroscopy, high-speed sedimentation, laser light scattering and electron spin resonance (ESR) spectroscopy. It was found that solubilization of butanol promotes aggregation of the complex species in solution and results in contraction of the region in which water-soluble complexes are formed. On the contrary, highly aggregated complexes disaggregate up to molecularly dispersed state upon addition of Triton X-100. It was found that under the experimental conditions neither butanol (up to 3 wt%) nor Triton X-100 ([Triton X-100]/[sodium dodecylsulfate] £ 1:1) cause destruction of the complexes. The results of ESR spin probe and spin label studies show that in both cases supramolecular realignments are accompanied by a slight increase of the local molecular mobility of surfactant ions in the complex micelles, segmental mobility of polyelectrolyte being unchanged.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

“…The values of sedimentation coefficient (S) were calculated as described earlier in the literature. 3 The experimental error of S determination was about 10-15%.…”

Section: High-speed Sedimentationmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of organic additives on formation and structure of polyelectrolyte‐oppositely charged surfactant complexes

Zakharova

Otdel’nova

Aliev

et al. 2006

Polymers for Advanced Techs

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“…The possibility of the formation of water-soluble nonstoichiometric complexes is defined by the degree of the polyelectrolyte polymerization and the length of the surfactant ion alkyl chain, with other parameters being equal [25].…”

Section: Preparation Of Water-soluble Polyelectrolyte-surfactant Compmentioning

confidence: 99%

Micellar electrokinetic chromatography with polyelectrolyte complexes as micellar pseudo-stationary phases

Shpak

Пирогов

Шпигун

2004

Journal of Chromatography B

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The selectivity in MEKC of pseudo-stationary phases based on polyelectrolyte complexes: I. composition of the complex

2005

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Polyelectrolyte-surfactant complexes (PSC) of polycarboxylic acids with alkyl-trimethylammonium salts look very promising as a new type of pseudo-stationary phase in micellar electrokinetic chromatography. PSC produce an intramolecular micellar phase, and the morphology of the micelles is significantly different from that of the corresponding "typical" surfactant micelles. Pseudo-stationary phases based on PSC have unique selectivity. In this paper, the effect of the composition (phi) of the PSC of polyacrylic acid (PAA) M(W) 130,000 with dodecyltrimethylammonium bromide (DTAB) and of the PSC of PAA M(W) 450,000 with DTAB on the separation of DNS-amino acids and phenol derivatives in these systems was investigated. Relative retention and relative selectivity were used to describe the electrophoretic behavior of the amino acids and phenol derivatives. The main advantage of PSC pseudo-phases is that the nature and the structure of micelle-like units, and hence the selectivity of electrophoretic separation, could easily be modified by changing the composition of the complex.

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Self-organization in complexes of polyacids with oppositely charged surfactants

Cited by 15 publications

References 10 publications

Effect of organic additives on formation and structure of polyelectrolyte‐oppositely charged surfactant complexes

Effect of organic additives on formation and structure of polyelectrolyte‐oppositely charged surfactant complexes

Micellar electrokinetic chromatography with polyelectrolyte complexes as micellar pseudo-stationary phases

The selectivity in MEKC of pseudo-stationary phases based on polyelectrolyte complexes: I. composition of the complex

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