Complex Fluids of Poly(oxyethylene) Monoalkyl Ether Nonionic Surfactants

Dong, Renhao; Hao, Jingcheng

doi:10.1021/cr9003743

Cited by 201 publications

(197 citation statements)

References 484 publications

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“…BmimPF 6 . The surface tension remains constant at concentrations above the cac, except in the BPS-30 single system.…”

Section: Resultsmentioning

confidence: 99%

“…3-methylimidazolium hexafluorophosphate, BmimPF 6 . The resultant surface tension data suggest that the hydrophobic phytosterol groups are normally oriented toward the air phase and the polyoxyethylene chains are present in the RT-IL as an anchor.…”

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confidence: 99%

“…Our current study addresses the physicochemical properties of binary surfactants in BmimPF 6 . As mentioned earlier, the interfacial adsorption and aggregation properties of single surfactants from RT-ILs have attracted much attention.…”

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confidence: 99%

“…To the best of our knowledge, however, surfactant mixtures in RT-ILs have not yet been studied/reported. This is surprising considering that the physicochemical understanding of surfactant mixtures in aqueous media is of great interest in surfactant chemistry 6 . The surfactants employed in our current study are BPS-5 and BPS-30, which are the same surfactants used in our previous work 4 .…”

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confidence: 99%

“…The surfactants employed in our current study are BPS-5 and BPS-30, which are the same surfactants used in our previous work 4 . Herein, we characterize the nonionic surfactant mixtures in BmimPF 6 on the basis of static surface tension, Abstract: The physicochemical properties of nonionic surfactant mixtures in an aprotic, imidazolium-type room-temperature ionic liquid (RT-IL) have been studied using a combination of static surface tensiometry, dynamic light scattering (DLS), and cryogenic transmission electron microscopy (cryo-TEM). The surfactants used in this study are phytosterol ethoxylates (BPS-n, where n is an oxyethylene chain length of either 5 or 30) and the selected RT-IL is 1-butyl-3-methylimidazolium hexafl uorophosphate (BmimPF 6 ).…”

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confidence: 99%

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Nonionic Surfactant Mixtures in an Imidazolium-Type Room-Temperature Ionic Liquid

et al. 2011

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INTRODUCTIONRoom-temperature ionic liquids RT-ILs are a relatively new class of organic solvents. Their unique physicochemical properties such as excellent thermal stability up to 300 or more, negligible volatility, and non-flammability make them ideal green solvents for many reactions of industrial importance. In the field of colloid and interface chemistry, RT-ILs have also received much attention 1, 2 . For example, a wide range of research papers on RT-ILs were reviewed and categorized by Inoue from the perspective of surfactant chemistry 3 . These categories comprised the following: i RT-ILs as a new type of surfactant, ii the effects of RT-ILs on the aqueous solution properties of surfactants, iii the formation of microemulsions using RT-ILs as polar solvents, and iv the self-assembly of surfactants in RT-ILs. Our interest lies in the fourth category 4, 5 . One of the key fi ndings we reported in a previous paper 4 is that phytosterol ethoxylates BPS-n, where n is an oxyethylene chain length of 5, 10, 20, and 30 exhibit excellent surface activity in an aprotic, imidazolium-type RT-IL 1-butyl-

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“…BmimPF 6 . The surface tension remains constant at concentrations above the cac, except in the BPS-30 single system.…”

Section: Resultsmentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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confidence: 99%

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confidence: 99%