Rheological Behavior of Aqueous Solutions of An Ionic Liquid As A Surfactant

Ping, Ali; Geng, Peipei; Zhang, Mengjie; Liu, Jie; Sun, Dezhi; Zhang, Xudong; Li, Qingxia; Liu, Jifeng; Wei, Xilian

doi:10.1080/1539445x.2014.916300

Cited by 4 publications

(3 citation statements)

References 35 publications

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“…The dependence of C NaSal as a function of R 14 HTAB concentration at the first maximum is shown in a bilogarithmic graph (Figure ), where a linear relationship is observed between both the C NaSal and C R 14 HTAB . Similar phenomena have also been found for cetylpyridinium chloride (CPyCl)/NaSal, cetyltrimethylammonium bromide (CTAB)/NaSal, and 1-tetradecyl-3-methylimidazolium bromide (C 14 mimBr)/NaSal mixed solutions. ,, The relationship obtained is Moreover, there is a similar linear relationship between η 0 and C R 14 HTAB : …”

Section: Results and Discussionsupporting

confidence: 70%

Rheological Properties of Viscoelastic Solutions in a Cationic Surfactant–Organic Salts–Water System

Wei

Geng

Han

et al. 2016

Ind. Eng. Chem. Res.

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Viscoelastic solutions formed in the mixed aqueous solutions of 3tetradecyloxy-2-hydroxypropyltrimethylammonium bromide (R 14 HTAB) and aromatic salts such as sodium salicylate (NaSal), sodium 1-hydroxynaphthalene-2-carboxylate (1SHNC), and sodium 2-hydroxynaphthalene-3-carboxylate (2SHNC) were systematically studied by steady and dynamic shear rheology in terms of concentration and temperature. In the absence of a salt, R 14 HTAB only produced spherical or short cylindrical micelles within a range of concentrations of 100−400 mmol kg −1 . The addition of aromatic salts induced one-dimensional growth of micelles generating wormlike micelles. Zero-shear viscosity of the solutions shows viscosity maxima behavior in the examined range of salt concentration, where the strongest and the most stable network structures were formed. The changes in the viscoelastic behavior are a result of variation of the structural relaxation time, indicating that the flow behavior is primarily controlled by micellar kinetics. The microstructure of wormlike micelles and the reason for the variation in the microstructure with an increase in the additive concentration has been analyzed by infrared and 1 H NMR spectra measurements. The zero-shear viscosity reduces exponentially with increasing temperature.

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Section: Results and Discussionsupporting

confidence: 70%

Rheological Properties of Viscoelastic Solutions in a Cationic Surfactant–Organic Salts–Water System

Wei

Geng

Han

et al. 2016

Ind. Eng. Chem. Res.

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“…The CMC value evaluated was treated in term of π-π stacking effect contributed by aromatic rings. Rheological behavior of IL C 14 mimBr in aqueous solution has been evaluated in the presence of sodium salicylate [57]. Maximal viscoelastic properties are found to correspond to the 1:0.6 surfactant/salt molar ratio and to be contributed by ion-pairing between them.…”

Section: Structural Diversity Of Biocompatible and Ecologically Frmentioning

confidence: 99%

Cationic Surfactants: Self-Assembly, Structure-Activity Correlation and Their Biological Applications

Zakharova

Pashirova

Doktorovová

et al. 2019

IJMS

108

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The development of biotechnological protocols based on cationic surfactants is a modern trend focusing on the fabrication of antimicrobial and bioimaging agents, supramolecular catalysts, stabilizers of nanoparticles, and especially drug and gene nanocarriers. The main emphasis given to the design of novel ecologically friendly and biocompatible cationic surfactants makes it possible to avoid the drawbacks of nanoformulations preventing their entry to clinical trials. To solve the problem of toxicity various ways are proposed, including the use of mixed composition with nontoxic nonionic surfactants and/or hydrotropic agents, design of amphiphilic compounds bearing natural or cleavable fragments. Essential advantages of cationic surfactants are the structural diversity of their head groups allowing of chemical modification and introduction of desirable moiety to answer the green chemistry criteria. The latter can be exemplified by the design of novel families of ecological friendly cleavable surfactants, with improved biodegradability, amphiphiles with natural fragments, and geminis with low aggregation threshold. Importantly, the development of amphiphilic nanocarriers for drug delivery allows understanding the correlation between the chemical structure of surfactants, their aggregation behavior, and their functional activity. This review focuses on several aspects related to the synthesis of innovative cationic surfactants and their broad biological applications including antimicrobial activity, solubilization of hydrophobic drugs, complexation with DNA, and catalytic effect toward important biochemical reaction.

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“…Long-chained ionic liquids have been extensively studied in the field of colloid and interface science because of the close resemblance of the alkyls in these ionic liquids' molecules to the 65 long hydrocarbon chains of conventional surfactant molecules [22] . Polymerized ionic liquids (PILs) are synthesized by introducing polymerizable group into ionic liquids [ 23 ] , which prossess the unique properties of ionic liquids and macromolecular architecture, such as negligible vapour pressure, good stability, 70 easily shaping and variety of available structures [ 24 ] .PILs are special ionic liquids.…”

Section: Introductionmentioning

confidence: 99%

Basic polymerized imidazolide-based ionic liquid: an efficient catalyst for aqueous Knoevenagel condensation

Ding

Zhang

et al. 2015

RSC Adv.

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A novel basic polymerized ionic liquid (BPIL): polymeric 1-[(4-ethenylphenyl)methyl]-3propylimidazolium imidazolide was synthesized and characterized by fourier transform infrared (FT-IR), nuclear magnetic resonance (NMR) and electron spray ionization mass spectrometry (ESI-MS). The BPIL was used as an efficient catalyst for aqueous Knoevenagel condensations with extended substrates. In 10 comparison with common base catalyst, the BPIL showed high catalytic activity, which was ascribed to the cooperation between the strong basicity and high surface activity. Moreover, the BPIL with high molecular weight have high surface activity and low catalytic activity. In addition, the BPIL was easily recovered and maintain high catalytic activity after five cycles of use in the system using benzaldehyde and malononitrile as substrates.

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Rheological Behavior of Aqueous Solutions of An Ionic Liquid As A Surfactant

Cited by 4 publications

References 35 publications

Rheological Properties of Viscoelastic Solutions in a Cationic Surfactant–Organic Salts–Water System

Rheological Properties of Viscoelastic Solutions in a Cationic Surfactant–Organic Salts–Water System

Cationic Surfactants: Self-Assembly, Structure-Activity Correlation and Their Biological Applications

Basic polymerized imidazolide-based ionic liquid: an efficient catalyst for aqueous Knoevenagel condensation

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