Synthesis and high-performance of a new sarcosinate anionic surfactant with a long unsaturated tail

Yao, Runchong; Qian, Jiasheng; Li, Huazhen; Yasin, Akram; Xie, Yi; Yang, Haiyang

doi:10.1039/c3ra44338h

Cited by 12 publications

(4 citation statements)

References 28 publications

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“…The aqueous phase viscosity has been increased by adding high concentrations of inorganic salts for amine oxide zwitterionic surfacants and for polymers with carboxybetaines monomers. 44,45,46,47 The decrease in a o with salinity may be expected to produce longer and more entangled wormlike micelles, 16,22,48,49 as was also evident in the decrease in the crossover frequency in Figure 3.…”

Section: Resultsmentioning

confidence: 85%

High temperature ultralow water content carbon dioxide-in-water foam stabilized with viscoelastic zwitterionic surfactants

Alzobaidi

Chen

Tran

et al. 2017

Journal of Colloid and Interface Science

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Ultralow water content carbon dioxide-in-water (C/W) foams with gas phase volume fractions (ϕ) above 0.95 (that is <0.05 water) tend to be inherently unstable given that the large capillary pressures that cause the lamellar films to thin. Herein, we demonstrate that these C/W foams may be stabilized with viscoelastic aqueous phases formed with a single zwitterionic surfactant at a concentration of only 1% (w/v) in DI water and over a wide range of salinity. Moreover, they are stable with a foam quality ϕ up to 0.98 even for temperatures up to 120°C. The properties of aqueous viscoelastic solutions and foams containing these solutions are examined for a series of zwitterionic amidopropylcarbobetaines, R-ONHCHN(CH)CHCO, where R is varied from C (coco) to C (oleyl) to C (erucyl). For the surfactants with long C and C tails, the relaxation times from complex rheology indicate the presence of viscoelastic wormlike micelles over a wide range in salinity and pH, given the high surfactant packing fraction. The apparent viscosities of these ultralow water content foams reached more than 120cP with stabilities more than 30-fold over those for foams formed with the non-viscoelastic C surfactant. At 90°C, the foam morphology was composed of ∼35μm diameter bubbles with a polyhedral texture. The apparent foam viscosity typically increased with ϕ and then dropped at ϕ values higher than 0.95-0.98. The Ostwald ripening rate was slower for foams with viscoelastic versus non-viscoelastic lamellae as shown by optical microscopy, as a consequence of slower lamellar drainage rates. The ability to achieve high stabilities for ultralow water content C/W foams over a wide temperature range is of interest in various technologies including polymer and materials science, CO enhanced oil recovery, CO sequestration (by greater control of the CO flow patterns), and possibly even hydraulic fracturing with minimal use of water to reduce the requirements for wastewater disposal.

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Section: Resultsmentioning

confidence: 85%

High temperature ultralow water content carbon dioxide-in-water foam stabilized with viscoelastic zwitterionic surfactants

Alzobaidi

Chen

Tran

et al. 2017

Journal of Colloid and Interface Science

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“…In addition, engineering responsiveness to two, three of more individual stimuli and convoluted combinations of them allow a high degree of control on functionality, which is of particular interest for instance to fine-tune drug release profiles or to achieve delivery of a payload in specific compartments of the body. While still a field in its early stage, the majority of multi-stimuli-responsive materials reported to date have been polymeric in nature [17][18][19][20][21][22], only a few systems based on small molecular assemblies have been described very recently [21,23,24], among which just a very few studies dealing with multi-stimuli-responsive WLMs, which are discussed below.…”

Section: Multi-stimuli-responsive Wlmsmentioning

confidence: 98%

“…This long-chain anionic surfactant shows pH-controllable micelle-vesicle-WLM transition. Besides pH, the rheological properties of EMAA are also affected by temperature and salt [24].…”

Section: Multi-stimuli-responsive Wlmsmentioning

confidence: 99%

Other Types of Smart Wormlike Micelles

Feng¹,

Chu

Dreiss

2015

SpringerBriefs in Molecular Science

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In comparison with the widely reported triggers described in previous chapters-namely temperature, pH, and light-this chapter discusses triggers which have been far less documented: redox potential and hydrocarbons and their use to control the assembly and properties of wormlike micelles. In addition, recent reports of multiple stimuli-responsive wormlike micelles are also described, as well as smart reverse wormlike micelles, to complete this collection of "unconventional" smart wormlike micelles.Keywords Redox-responsive · Hydrocarbon-responsive · Multi-responsive · Smart reverse wormlike micelles Redox-Responsive WLMsThe first redox-sensitive surfactant was reported nearly 30 years ago by Saji et al. [1,2]. They incorporated a ferrocene-based moiety into the surfactant and found that the CMC and micellization behaviour were altered under the stimulus of electron transfer, and they observed that micelles could be broken up into monomers by oxidation and re-formed by reduction. More details on this type of surfactants can be found in recent reviews by Abbott [3] and Eastoe [4].Despite this prior work, the only example of redox-sensitive WLMs, to our knowledge, was reported by Abe et al. [5] in 2004, and motivated by the development of electro-rheological (ER) fluids. ER fluids are colloidal dispersions whose viscosity can be controlled by an applied electric potential and are regarded as versatile materials for building up smart structures and machines. These fluids have applications in valves and clutches for transmission and precise control of mechanical positioning. They are conventionally produced by dispersing solid particles within a liquid. The application of an alternating electric field to the ER dispersions produces a viscosity increase mainly in the direction perpendicular to the field, because the dispersed particles align to form strings in the direction parallel

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“…Yang et al [32] synthesized a C22-tailed sarcosinate anionic surfactant, 2-(N-erucacyl-N-methyl amido) acetate (EMAA) and observed that its solutions display a pH-controllable transition from micelles to vesicles. In rheological experiments, when increasing the pH from 6.43 to 7.36, η 0 showed a substantial increase from 3.8 to 222.5 Pa s.…”

Section: Ph-responsive Wlms Obtained From the Design Of Surfactant Armentioning

confidence: 99%

pH-Responsive Wormlike Micelles

Feng¹,

Chu²,

Dreiss³

2015

SpringerBriefs in Molecular Science

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pH has been known for a long time and frequently used as a facile, inexpensive trigger to control molecular assemblies and thereby the bulk properties of the corresponding solutions. pH-responsive WLMs have been developed not only based on commercially available surfactants in the presence of hydrotropes, but also through the design of surfactant mixture composition and surfactant architecture. This chapter introduces pH-responsive wormlike micellar systems fabricated through the introduction of hydrotropes to conventional surfactant-based wormlike micellar systems, in appropriate mixtures of surfactants, or by modifying the surfactant molecular architecture with pH-sensitive functional groups, either the hydrophilic head or the hydrophobic tail. It is worth pointing out that a disadvantage of this trigger is that the cyclic addition of acid and base may deteriorate the repeated use of the wormlike micellar systems.

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Synthesis and high-performance of a new sarcosinate anionic surfactant with a long unsaturated tail

Cited by 12 publications

References 28 publications

High temperature ultralow water content carbon dioxide-in-water foam stabilized with viscoelastic zwitterionic surfactants

High temperature ultralow water content carbon dioxide-in-water foam stabilized with viscoelastic zwitterionic surfactants

Other Types of Smart Wormlike Micelles

pH-Responsive Wormlike Micelles

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