Effect of aging time and salt on the viscosity behaviour of a Gemini cationic surfactant

Zhang, Fanglei; Zhang, Qian; Han, Chuanhong; Zhang, Mengjie; Yu, Mengjiao; Liu, Jie; Wei, Xilian

doi:10.1080/00319104.2016.1227810

Cited by 7 publications

(7 citation statements)

References 47 publications

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“…Fibrillation and sol–gel transitions in LMW amphiphiles − or amphiphilic polymers can also be triggered by alkaline earth − or transition metal salts. − Supramolecular metallogels are receiving nowadays a growing interest for their potential applications in many areas, like medicine, drug delivery, environmental remediation, catalysis, and electronics. − The growing interest of this family of gels comes from both the stimuli-responsiveness of the supramolecular self-assembly and the interesting properties of the metal complex. , The typical phase transitions induced by salt in amphiphilic systems strongly depend on the type of ion . For surfactants, typical evolutions are observed from spheres to cylinders − and wormlike morphologies, , and from micelles to vesicles , or lamellae . For other LMW compounds, such as peptide amphiphiles, peptide derivatives, or bile salts, fibrillation often occurs. ,− By salt addition, one can differentiate several mechanisms, possibly occurring simultaneously, at the origin of the morphological changes: charge screening, bridging, or complexation. , …”

Section: Introductionmentioning

confidence: 99%

“…13,31 The typical phase transitions induced by salt in amphiphilic systems strongly depend on the type of ion. 32 For surfactants, typical evolutions are observed from spheres to cylinders 33−35 and wormlike morphologies, 36,37 and from micelles to vesicles 38,39 or lamellae. 40 For other LMW compounds, such as peptide amphiphiles, peptide derivatives, or bile salts, fibrillation often occurs.…”

Section: ■ Introductionmentioning

confidence: 99%

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Cation-Induced Fibrillation of Microbial Glycolipid Biosurfactant Probed by Ion-Resolved In Situ SAXS

et al. 2022

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Biological amphiphiles are molecules with a rich phase behavior. Micellar, vesicular, and even fibrillar phases can be found for the same molecule by applying a change in pH or by selecting the appropriate metal ion. The rich phase behavior paves the way toward a broad class of soft materials, from carriers to hydrogels. The present work contributes to understanding the fibrillation of a microbial glycolipid, glucolipid G-C18:1, produced by Starmerella bombicola ΔugtB1 and characterized by a micellar phase at alkaline pH and a vesicular phase at acidic pH. Fibrillation and prompt hydrogelation is triggered by adding either alkaline earth, Ca 2+ , or transition metal, Ag + , Fe 2+ , Al 3+ , ions to a G-C18:1 micellar solution. A specifically designed apparatus coupled to a synchrotron SAXS beamline allows the performing of simultaneous cation-and pH-resolved in situ monitoring of the morphological evolution from spheroidal micelles to crystalline fibers, when Ca 2+ is employed, or to wormlike aggregates, when Fe 2+ or Al 3+ solutions are employed. The fast reactivity of Ag + and the crystallinity of Ca 2+ -induced fibers suggest that fibrillation is driven by direct metal−ligand interactions, while the shape transition from spheroidal to elongated micelles with Fe 2+ or Al 3+ rather suggest charge screening between the lipid and the hydroxylated cation species.

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Section: Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Cation-Induced Fibrillation of Microbial Glycolipid Biosurfactant Probed by Ion-Resolved In Situ SAXS

et al. 2022

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“…Wormlike micelles are threadlike aggregates formed by the self-assembly of surfactants. − The entanglement of wormlike micelles enhances the viscoelasticity of solutions, the behavior of which is similar to that of polymers. As one of the supramolecular aggregates formed by small molecules, wormlike micelles continuously undergo the scission-recombination process.…”

Section: Introductionmentioning

confidence: 99%

Rheological Behavior of Environmentally Friendly Viscoelastic Solutions Formed by a Rosin-Based Anionic Surfactant

Chen

Song

Pei

et al. 2019

J. Agric. Food Chem.

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It is of great significance to explore novel applications of renewable resources. In this study, a rosin-based anionic surfactant (abbreviated R-11-2-Na), which contains a large hydrophobic group of 30 carbon atoms, was synthesized. R-11-2-Na forms wormlike micelles in the presence of the equimolar organic salt choline chloride, endowing solutions with strong viscoelasticity. The wormlike micellar solutions were investigated using rheology, small-angle X-ray scattering, and freezefracture transmission electron microscopy (FF-TEM) methods at 25 °C. Due to the strong van der Waals interactions caused by the large hydrophobic group contained in R-11-2-Na, the zero-shear viscosity (η 0 ) of solutions showed extremely strong dependence on the concentration with an exponent of 23.4. The cross-sectional diameter of the wormlike micelles in the present system was significantly larger than that of the wormlike micelles formed by surfactants containing conventional alkyl tails. This finding may be attributed to the steric hindrance brought by the bulky and rigid dehydroabietic acid unit in the hydrophobic part. The wormlike micelles also showed high tolerance to the organic salt concentration. The present study reveals the notable qualities of rosin-based derivatives in forming complex fluids and facilitates new utilizations of forest resources.

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“…Gemini surfactants, consisting of two monomeric surfactants linked with a spacer, have been synthesized and studied as high performance surfactants because of their lower critical micelle concentration (cmc) and surface tension than those of monomeric surfactants. − Since the packing parameter p = v / a 0 l c for gemini surfactants is higher than that for corresponding monomeric surfactants due to the presence of two hydrophobic chains in a molecule, they form wormlike micelles by themselves even in the absence of salt at low concentrations. Here, v , a 0 , and l c are the volume of the hydrophobic group, the apparent area of the hydrophilic group, and the length of the hydrophobic chain, respectively As a result, an aqueous gemini surfactant solution exhibits high viscosity even at low concentrations. − Therefore, gemini surfactants are more effective surfactants than monomeric surfactants and are promising materials for reduction of total consumption in commercial products. Furthermore, recently, hybrid (or hetero) gemini surfactants, which have different hydrophobic and/or hydrophilic groups in the surfactant, have been synthesized. − Since they show excellent properties derived from the two different functional groups in the surfactant, they have attracted increasing attention as a designer’s surfactant.…”

Section: Introductionmentioning

confidence: 99%

Structure and Rheology of Wormlike Micelles Formed by Fluorocarbon–Hydrocarbon-Type Hybrid Gemini Surfactant in Aqueous Solution

et al. 2017

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The structure and rheological properties of wormlike micelles formed by a fluorocarbon-hydrocarbon-type hybrid gemini surfactant in an aqueous solution were investigated by means of small-angle X-ray scattering (SAXS) and viscoelastic measurements. The cross-sectional structure (the radius of the hydrophobic core and the thickness of the hydrophilic shell) and the aggregation number per unit axial length of wormlike micelles were evaluated by a model fitting analysis of SAXS profiles. Both parameters for the hybrid gemini surfactant were smaller than those of a corresponding hydrocarbon-hydrocarbon-type gemini surfactant. On the other hand, the viscosity of the hybrid gemini surfactant was higher than that of the hydrocarbon-hydrocarbon-type gemini surfactant. From the viscoelastic parameters, the steady state compliance, J, and the terminal relaxation time, τ, which were independently obtained by dynamic viscoelastic measurement, we revealed that a larger number of entanglements and a longer contour length of the hybrid gemini surfactant led to the higher viscosity. These results obtained by the rheological measurements were consistent with those obtained by SAXS analysis.

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Effect of aging time and salt on the viscosity behaviour of a Gemini cationic surfactant

Cited by 7 publications

References 47 publications

Cation-Induced Fibrillation of Microbial Glycolipid Biosurfactant Probed by Ion-Resolved In Situ SAXS

Cation-Induced Fibrillation of Microbial Glycolipid Biosurfactant Probed by Ion-Resolved In Situ SAXS

Rheological Behavior of Environmentally Friendly Viscoelastic Solutions Formed by a Rosin-Based Anionic Surfactant

Structure and Rheology of Wormlike Micelles Formed by Fluorocarbon–Hydrocarbon-Type Hybrid Gemini Surfactant in Aqueous Solution

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