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Self-assembly of polyion-surfactant ion complex salts in mixtures with water and n-alcohols.

Bernardes JS, Piculell L, Loh W - J Phys Chem B (2011)

Bottom Line: The obtained results were compared with a previous work on similar ternary mixtures of the same cationic surfactant but with the monomeric bromide counterion, CTABr (Fontell, K.; Khan, A.; Lindström, B.; Maciejewska, D.; Puang-Ngern, S.Colloid Polym.For mixtures with octanol and ethanol, in particular, the extensions of the disordered isotropic phases were larger for the complex salt with the shorter polyacrylate ions.

View Article: PubMed Central - PubMed

Affiliation: Institute of Chemistry, Universidade Estadual de Campinas Campinas (UNICAMP), Caixa Postal 6154, Campinas, SP, Brazil.

No MeSH data available.


Related in: MedlinePlus

Phasediagram of the n-alcohol/water/CTAPA6000 systems at 25°C: (A) decanol,(14) (B) octanol, (C)hexanol, (D) butanol, and (E) ethanol. Codes for phases: L1, aqueous isotropic solution; H, hexagonal; L, lamellar; H2, reverse hexagonal; L2, alcoholic isotropic solution.
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fig2: Phasediagram of the n-alcohol/water/CTAPA6000 systems at 25°C: (A) decanol,(14) (B) octanol, (C)hexanol, (D) butanol, and (E) ethanol. Codes for phases: L1, aqueous isotropic solution; H, hexagonal; L, lamellar; H2, reverse hexagonal; L2, alcoholic isotropic solution.

Mentions: Ternary systems of the two complex salts (C16TAPA30, C16TAPA6000) with water and n-alcohol(ethanol, butanol, hexanol, octanol, and decanol) were analyzed andare represented in conventional triangular phase diagrams, as shownin Figures 1 and 2.The general approach used to investigate all phase diagrams was tofocus on dilution lines, referred to as alcohol and water dilutionlines. The analyzed n-alcohol dilution line (indicated in Figure 1a) starts with a binary mixture of ca. 30 wt % ofcomplex salt and 70 wt % of water, which contains two-phase samplesof either a cubic phase (for CTAPA30) or a hexagonal phase(for CTAPA6000) in equilibrium with almost pure water.(2)


Self-assembly of polyion-surfactant ion complex salts in mixtures with water and n-alcohols.

Bernardes JS, Piculell L, Loh W - J Phys Chem B (2011)

Phasediagram of the n-alcohol/water/CTAPA6000 systems at 25°C: (A) decanol,(14) (B) octanol, (C)hexanol, (D) butanol, and (E) ethanol. Codes for phases: L1, aqueous isotropic solution; H, hexagonal; L, lamellar; H2, reverse hexagonal; L2, alcoholic isotropic solution.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3211389&req=5

fig2: Phasediagram of the n-alcohol/water/CTAPA6000 systems at 25°C: (A) decanol,(14) (B) octanol, (C)hexanol, (D) butanol, and (E) ethanol. Codes for phases: L1, aqueous isotropic solution; H, hexagonal; L, lamellar; H2, reverse hexagonal; L2, alcoholic isotropic solution.
Mentions: Ternary systems of the two complex salts (C16TAPA30, C16TAPA6000) with water and n-alcohol(ethanol, butanol, hexanol, octanol, and decanol) were analyzed andare represented in conventional triangular phase diagrams, as shownin Figures 1 and 2.The general approach used to investigate all phase diagrams was tofocus on dilution lines, referred to as alcohol and water dilutionlines. The analyzed n-alcohol dilution line (indicated in Figure 1a) starts with a binary mixture of ca. 30 wt % ofcomplex salt and 70 wt % of water, which contains two-phase samplesof either a cubic phase (for CTAPA30) or a hexagonal phase(for CTAPA6000) in equilibrium with almost pure water.(2)

Bottom Line: The obtained results were compared with a previous work on similar ternary mixtures of the same cationic surfactant but with the monomeric bromide counterion, CTABr (Fontell, K.; Khan, A.; Lindström, B.; Maciejewska, D.; Puang-Ngern, S.Colloid Polym.For mixtures with octanol and ethanol, in particular, the extensions of the disordered isotropic phases were larger for the complex salt with the shorter polyacrylate ions.

View Article: PubMed Central - PubMed

Affiliation: Institute of Chemistry, Universidade Estadual de Campinas Campinas (UNICAMP), Caixa Postal 6154, Campinas, SP, Brazil.

No MeSH data available.


Related in: MedlinePlus