Synthesis, surface properties, aggregation behavior of oleyl ether sulfates and their application to liquid crystal emulsion

Ling, Ting; Jiang, Zhaoli; Li, Ping; Li, Jianbo; Ren, Xiaodan; Guo, Chaohua

doi:10.1016/j.colsurfa.2022.128655

Cited by 5 publications

(7 citation statements)

References 63 publications

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“…As can be seen in Figure 10 a, the elastic modulus G’ is always greater than the viscous modulus G’’ within the tested frequency range, revealing the predominant viscoelastic behavior for the emulsion. A similar phenomenon was previously observed in an emulsion prepared with oleyl ether sulfates (OE n S, n = 3, 5, and 7) as the surfactant [ 12 ]. The yield stress of the emulsion is shown in Figure 10 b, and one can observe that the emulsion began to deform under a low shear force, suggesting a low emulsion strength.…”

Section: Resultssupporting

confidence: 82%

“…The K T value of OE 3 P 3 S is 2 ± 0.5 °C, which is lower than that of sodium oleyl ether sulfate (OE 3 S) (10 ± 2 °C) [ 12 ]. It means that the PPO chain make it possible to improve the hydrophobicity of the extended surfactants without sacrificing the water solubility, which is unlike the ordinary hydrocarbon chain on conventional surfactants, because it would also cause an increase in the molecular crystallinity and lead to a sharp increase in the K T [ 13 ].…”

Section: Resultsmentioning

confidence: 99%

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Adsorption and Aggregation Behaviors of Oleyl Alcohol-Based Extended Surfactant and Its Mixtures

Li,

Ren,

Wang

et al. 2024

Molecules

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An oleyl alcohol-based extended surfactant, sodium oleyl polyethylene oxide-polypropylene oxide sulfate (OE3P3S), was synthesized and identified using FT-IR and 1H NMR. The adsorption and aggregation behaviors of OE3P3S and its mixture with cationic surfactant alkyltrimethylammoniumbromide (ATAB) were investigated under different molar ratios. The static surface tension analysis indicated that the critical micellization concentration (cmc) and the critical surface tension (γcmc) of OE3P3S were 0.72 mmol/L, and 36.16 mN/m, respectively. The cmc and γcmc values of the binary system were much lower than that of the individual component. And the cmc values of OE3P3S/ATAB = 6:4 mixtures decreased with an increase in the chain length of the cationic surfactant in the binary system. It was found from the dynamic surface tension that there was a slower diffusion rate in the binary system compared to the pure surfactant, and the adsorption processes for OE3P3S/ATAB = 6:4 were mixed diffusion-kinetic adsorption mechanisms. With a combination of DLS data and TEM measurements, formations of vesicles in OE3P3S/ATAB = 6:4 solutions appeared to occur at a concentration of 0.05 mmol/L. By studying the formation of liquid crystal structures in an emulsion prepared with OE3P3S as the surfactant, it was found that the oil-in-water emulsion is birefringent with a Maltese cross texture, and the rheological properties revealed its predominant viscoelastic behavior and shear thinning properties.

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Section: Resultssupporting

confidence: 82%

Section: Resultsmentioning

confidence: 99%

Adsorption and Aggregation Behaviors of Oleyl Alcohol-Based Extended Surfactant and Its Mixtures

Li,

Ren,

Wang

et al. 2024

Molecules

Self Cite

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“…KT value of OE3P3S is 2±0.5 °C, which is lower than that of oleyl ether sulfates (OE3S) of 10±2°C [14] . It means that the PPO chain make it possible to improve the hydrophobicity of the extended surfactants without sacrificing water solubility, which is unlike the ordinary hydrocarbon chain on the conventional surfactants because it would also cause an increase of molecular crystallinity and leading to a sharp increase of KT [1,15] .…”

Section: Krafft Pointmentioning

confidence: 71%

“…By continuing to increase the shear rate, the microstructure units inside the liquid crystal remain basically consistent or parallel, therefore, it will no longer continue to decline and maintain a stable value. The good shear thinning properties of the emulsion allowed them to maintain a high viscosity during storage, while starting to flow at higher shear rates, making for easy application and spreading [14,46,47] .…”

Section: Liquid Crystal Emulsionmentioning

confidence: 99%

Adsorption and aggregation behavior of oley alcohal based extended surfactant and its mixtures

Li,

Ren,

Wang

et al. 2024

Preprint

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Oley alcohal based extended surfactant, sodium oleyl polyethylene oxide -polypropylene oxide sulfate (OE3P3S), was synthesized and identified by FT-IR and 1H NMR. The adsorption and aggregation behavior of OE3P3S and its mixture with cationic surfactant alkyltrimethylammoniumbromide (ATAB) under different molar ratios were investigated. The static surface tension analysis indicates that the critical micellization concentration(cmc) and the critical surface tension (γcmc) of OE3P3S was 0.72mmol/L, and 36.16mN/m, respectively. The cmc and γcmc values of the binary system were much lower than that of the individual component. And the cmc values of OE3P3S/ATAB=6:4 mixtures decreased with the increase of chain length of the cationic surfactant in the binary system. It was found from the dynamic surface tension that there was a slower diffusion rate of binary system compared to the pure surfactant, and the adsorption processes for OE3P3S/ATAB =6:4 were mixed diffusion-kinetic adsorption mechanism. With a combination of DLS data and TEM measurements, formations of vesicles in OE3P3S/ATAB =6:4 solutions appeared to occur at a concentration of 0.05mmol/L. By studying the formation of liquid crystal structures in emulsion prepared with OE3P3S as the surfactant, it was found that the shape of acquired oil droplets being spherical and homogeneous, and the rheological properties revealed that the emulsion had good storage stability and shear thinning properties.

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“…Nanomaterial form References Polymeric nanomaterials Nanocapsules, hydrogels, chitosan, dan liquid crystals (Abdelghany et al, 2021;Gwak et al, 2021;Huang et al, 2022;Ling et al, 2022;Seo et al, 2022) Nanoparticulate systems Nanospheres, nanotopes, nanocrystals, nanofibers, dan nanopigments (Asadi et al, 2022;De et al, 2014;Ghalehkhondabi et al, 2022;P. Mishra et al, 2021;Nafisi & Maibach, 2017;Setia Budi et al, 2022;Zarandi et (Alkalbani et al, 2022;Dong et al, 2022;Fytianos et al, 2020;Gut et al, 2020;Pandey et al, 2019;Peng et al, 2020;Salama & Abdel Aziz, 2020) Organic nanomaterials Lipid nanoparticles (solid lipid nanoparticles and nanostructured lipid carriers), liposomes, nanosomes, niosomes, ethosomes, transferosomes, cubosomes, multiple emulsions, ultrasomes, photosomes, aquasomes, and nanoemulsions (Allouche, 2013;Barriga et al, 2019;Daraee et al, 2016;Gopalakrishnan et al, 2013;Himeno et al, 2017;Ito et al, 2012;S.…”

Section: Typementioning

confidence: 99%

Nano-Perfumes As A Fragrance Carrier: Their Brief History, Essential Aspects, Development, Preparation Methods, Characteristics, And Future Perspectives

Gunawan,

Daryono,

Noviana

et al. 2023

Indonesian J Pharm

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Nano-perfume is an alcohol-free perfume in the form of oil-in-water nanoemulsions containing fragrance. Due to its favorable properties, nano-perfume may appeal to a broader client base, including children and individuals with sensitive skin. This technology can provide an alternative solution to the low permanence of fragrances by eliminating ethanol and decreasing the amount of surfactant, co-surfactant, and solvents used in the formulation. However, relatively few researchers have studied and developed this technology to date. In this review, we examine several essential elements of nano-perfume, therefore it is hoped that relevant questions will be raised regarding the future of this technology. The discussion is focused on the definition and composition of perfume, the notion of "notes" in fragrances products, nanotechnology in the cosmetics industry, significant characteristics of nano-perfume, as well as problems and prospects.

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Synthesis, surface properties, aggregation behavior of oleyl ether sulfates and their application to liquid crystal emulsion

Cited by 5 publications

References 63 publications

Adsorption and Aggregation Behaviors of Oleyl Alcohol-Based Extended Surfactant and Its Mixtures

Adsorption and Aggregation Behaviors of Oleyl Alcohol-Based Extended Surfactant and Its Mixtures

Adsorption and aggregation behavior of oley alcohal based extended surfactant and its mixtures

Nano-Perfumes As A Fragrance Carrier: Their Brief History, Essential Aspects, Development, Preparation Methods, Characteristics, And Future Perspectives

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