Investigations on zwitterionic alkylsulfobetaines and nonionic triton X-100 in mixed aqueous solutions: Effect on size, phase separation and mixed micellar characteristics

Thakkar, Khushbu; Bharatiya, Bhavesh; Shah, Dinesh O.; Bahadur, Pratap

doi:10.1016/j.molliq.2015.06.020

Cited by 19 publications

(12 citation statements)

References 45 publications

(52 reference statements)

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“…It is commonly accepted that in today's detergent industry, zwitterionic surfactants have been much less produced and investigated in comparison to other classes of surfactants due to their higher production cost together with the fact that they account only for 5% of the total surfactant market [1][2][3]. Mostly, their behaviors are reported in association with ionic or nonionic surfactants [4][5][6][7]. Zwitterionic surfactants consist of two functional groups; one positively charged and one negatively charged, and are fascinating molecules because of their unique properties [8,9].…”

Section: Introductionmentioning

confidence: 99%

Synergisms in Binary Mixtures of Anionic and pH‐Insensitive Zwitterionic Surfactants and Their Precipitation Behavior with Calcium Ions

Maneedaeng

Flood

2016

J Surfact & Detergents

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This work aims to investigate synergy in anionic and zwitterionic surfactant mixtures, as they result in better interfacial properties and micellization behavior. Various mixtures of the pH-insensitive zwitterionic surfactant 3-(decyldimethylammonio) propanesulfonate (Zwittergent 3-10) and sodium dodecylsulfate (SDS) were prepared in aqueous solution at a range of pH values between 2 and 13. The thermodynamic parameters during mixed surfactant adsorption at the air/water interface are obtained and the results show the mixed surfactant systems having superior properties to the constituent surfactants. Experimentally, the mixed surfactant solutions clearly improve the surface activities by lowering the critical micelle concentration (CMC) and lowering the surface tension at the air/water interface. The synergisms are investigated through the interaction parameters estimated from regular solution theory that is used to quantitatively describe the nonideality of surfactant mixtures. High negative interaction parameters are obtained from these surfactant mixtures. Experimental precipitation phase boundaries of SDS in the presence of CaCl 2 were also investigated in mixtures containing pH-insensitive zwitterionic surfactant at & Atthaphon Maneedaeng atthaphon@sut.ac.th

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Section: Introductionmentioning

confidence: 99%

Synergisms in Binary Mixtures of Anionic and pH‐Insensitive Zwitterionic Surfactants and Their Precipitation Behavior with Calcium Ions

Maneedaeng

Flood

2016

J Surfact & Detergents

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“…Surfactant mixtures containing quaternary ammonium groups are studied conventionally [37][38][39], but very few studies report on alkyl triphenylphosphonium bromide in mixture with a non-ionic surfactant. Bahadur et al have investigated several surfactant systems using TX-100 [3,22,[40][41][42][43][44] and alkyl triphenylphosphonium bromide [45] as one of the components of aqueous mixed surfactant system. Palepu et al [46][47][48][49][50][51][52] investigated on aqueous solution behaviour of mixed surfactants using several analytical techniques.…”

Section: Introductionmentioning

confidence: 99%

Interaction of ionic liquid type cationic surfactants with triton X-100 nonionic micelles

Thakkar

Bharatiya²,

Shah

et al. 2015

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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“…24 As shown in our previous article, 24 the addition of AOS to formulations can improve the solubility and stability of the formulation. 24,36,37 Comparatively, aqueous solutions of binary mixtures containing C m GA−E n seem to be more stable than those containing 1,3-dialkyl glyceryl ether ethoxylates, especially in the ternary systems, where sedimentation or flocculation does not appear even at room temperature (ca. 25 °C).…”

Section: Energy and Fuelsmentioning

confidence: 99%

“…The temperature of the onset of turbidity was taken as the cloud point, which was usually reproducible to within ± 0.5 °C. 24,36,37 Interfacial Tension. The dynamic interfacial tensions (IFTs) between aqueous solutions of surfactants with polyacrylamide (1000 mg/L) in Daqing connate water and Daqing crude oil were measured using a Texas 500 model tensiometer at a rotation period of 14 ms/ rotation (4286 rpm) at 45 ± 0.1 °C (the reservoir temperature of the Daqing oilfield), and the value at 120 min was taken as the equilibrium IFT.…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

Performances of Guerbet Alcohol Ethoxylates for Surfactant–Polymer Flooding Free of Alkali

Yan

Cui

et al. 2017

Energy Fuels

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Two series of double-chain single-head nonionic surfactants, Guerbet alcohol ethoxylates (C m GA–E n ; m = 16 and 20, n = 5.7–24.0), were synthesized, and their performances as surfactants for surfactant–polymer (SP) flooding free of alkali were evaluated. The products have relatively low critical micelle concentrations [(6.8 × 10–7)–(1.0 × 10–5 mol/L)] and a wide range of surface tensions at the critical micelle concentration (γcmc) values (30.3–38.0 mN/m) at 25 °C, depending on both the alkyl-chain length and the number of ethylene oxide (EO) units. When used alone, these nonionic surfactants are not efficient for reducing crude oil/connate water interfacial tension (IFT), but their binary mixtures with a highly hydrophobic zwitterionic surfactant, didodecylmethyl hydroxylpropyl sulfobetaine (diC12HSB), are very efficient in reducing Daqing crude oil/connate water IFTs. Ultralow IFTs can be achieved in a wide total concentration range (0.3–10 mM) at 45 °C, and the low limit (0.3 mM) can be further reduced to 0.15 mM by adding an anionic surfactant, α-olefin sulfonate (AOS), to the binary mixtures at a small mole fraction (0.1). Both the binary and ternary mixtures display good resistance against adsorption by Daqing sandstone, and when dissolved in connate water, they prefer to keep the negatively charged rock surface water-wet and produce a crude-oil-in-water emulsion. In addition, the incorporation of AOS into the binary mixtures was found to be beneficial for preventing crystallization of zwitterionic surfactant and flocculation of nonionic surfactants, as reported previously. Comparatively, for SP flooding free of alkali, the Guerbet alcohol ethoxylates are as excellent as the glyceryl ether ethoxylates, nonionic surfactants with a similar double-alkyl single-head structure, but are far superior to the conventional nonionic surfactants with monoalkyl single-head structures.

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Investigations on zwitterionic alkylsulfobetaines and nonionic triton X-100 in mixed aqueous solutions: Effect on size, phase separation and mixed micellar characteristics

Cited by 19 publications

References 45 publications

Synergisms in Binary Mixtures of Anionic and pH‐Insensitive Zwitterionic Surfactants and Their Precipitation Behavior with Calcium Ions

Synergisms in Binary Mixtures of Anionic and pH‐Insensitive Zwitterionic Surfactants and Their Precipitation Behavior with Calcium Ions

Interaction of ionic liquid type cationic surfactants with triton X-100 nonionic micelles

Performances of Guerbet Alcohol Ethoxylates for Surfactant–Polymer Flooding Free of Alkali

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