Thermodynamics of Micellization of Sulfobetaine Surfactants in Aqueous Solution

Cheng, Cheng-jie; Qu, Guangmiao; Ji-jun, Wei; Tao, Yu; Ding, Wei

doi:10.1007/s11743-012-1374-8

Cited by 28 publications

(24 citation statements)

References 21 publications

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“…Such a phenomenon is observed for most surfactants irrespective of the charge class to which they are classified and can be explained by the fact that micelle formation is favored when stabilizing hydrophobic interactions are accentuated. The values of CMC are comparable to those presented by Cheng et al, however the nominal values are slightly different [19]. Butane derivatives of sulfobetaines examined exhibited higher CMC values than the corresponding propane ones with elongation of alkyl chain, but the differences decreased with increasing number of carbon atoms in the alkyl chain.…”

Section: Discussionsupporting

confidence: 83%

Surface and Antimicrobial Activity of Sulfobetaines

Wieczorek

Gwiazdowska

Staszak

et al. 2016

J Surfact & Detergents

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Sulfobetaines belong to the group of zwitterionic surfactants. They are electroneutral salts, which have in the same molecule, two ionic centers with different charge. Due to the specific structure they exhibit excellent properties such as good solubility in water and detergency. In this paper we present surface properties and adsorption parameters of sulfobetaines in water/air systems. From the adsorption isotherms the CMC value, the surface tension and surface pressure at the CMC as well as the efficiency of adsorption were determined. Physicochemical analyses of the data allowed for the further description of adsorption process. Results showed that sulfobetaines exhibit good surface properties especially low CMC and p20 values. Additionally the antimicrobial activity of sulfobetaines solutions against gram‐positive and gram‐negative bacteria were tested by the well‐diffusion method. MIC values and growth kinetics were determined by microdilution method. Antimicrobial assays demonstrated that sulfobetaines can be good antibacterial agents, but the activity of surfactants strongly depends on alkyl chain length.

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Section: Discussionsupporting

confidence: 83%

Surface and Antimicrobial Activity of Sulfobetaines

Wieczorek

Gwiazdowska

Staszak

et al. 2016

J Surfact & Detergents

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“…That means that the CMC is a phase transition point. The slopes of several physical properties change as a function of the concentration; in particular, the surface tension shows an inflexion point at the CMC (Asadov et al 2012;Cheng et al 2012).…”

Section: Surface Properties Of the Binary Mixed Solution In The Wholementioning

confidence: 99%

Synergistic Effects of Lignin-Phenol-based Nonionic Surfactant with Anionic Surfactants in Aqueous Solution

Mao¹,

Wu²

2013

BioResources

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Surfactants made from modified lignin are attracting growing attention; therefore, a lignin-phenol nonionic surfactant named ML-AL has been prepared by modifying liquefied industrial alkali lignin (L-AL). Its basic physical and chemical properties have been shown to be favorable. In this work, anionic surfactants of sodium fatty acid soap (carbon numbers 12, 16, and 18) and sulfur-containing anionic surfactants (sodium dodecyl sulfate and sodium dodecyl benzene sulfonate) were chosen to mix with ML-AL in water-soluble media. The surface properties of each binary mixed solution system with anionic surfactant were investigated. At the same time, the mixed micelles formed by ML-AL and each anionic surfactant were studied. Non-ideal mixed micelles were obtained via ML-AL and the tested anionic surfactant. The interaction parameter (β M ) and excess free energy (ΔG excess ) were both negative. Meanwhile, the critical micelle concentration (CMC) values of mixed systems (formed by ML-AL and each anionic surfactant in aqueous solution) were lower than those of a single-component system (ML-AL or single anionic surfactant). There was an optimum dosage ratio of about 0.4 in terms of synergistic effects. This research could provide a foundation for practical applications of combinations with anionic surfactants in aqueous solution.

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“…In application, it exhibits an excellent lime dispersing property in detergent formulations [1]. Despite these desirable properties, the behavior of sulfobetaine surfactant has not been studied and reported systematically, especially on the thermodynamic properties [2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

“…This linear relationship is called the compensation phenomenon or the compensation rule (or relation) [6]. Many reports on the enthalpy-entropy compensation have been concerned with the micellization of cationic, anionic, nonionic and zwitterionic surfactants [5][6][7][8][9][10][11][12]. For example, the surfactants SDS and C 16 TAB investigated by Lee [10] showed a parallel relationship whether phase separation or mass action models was applied.…”

Section: Introductionmentioning

confidence: 99%

“…Chen et al [8] found that the compensation plots for nonionic surfactants C i E j s with i = 10, 12 and 14, j = 4, 6, and 8 in aqueous solution all coincide into a straight line. Cheng et al [5] investigated the enthalpy-entropy compensation of N-alkyl-N,N-dimethyl-3-ammonio-1-propanesulfonate, i.e. a sulfobetaine or sultaine with three carbon atoms spacer (referred to as SB n = 3), and N-alkyl-N,Ndimethyl-3-ammonio-1-butanesulfonate with 4 carbon spacers (referred to as SB n = 4).…”

Section: Introductionmentioning

confidence: 99%

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Thermodynamic Properties of Sulfobetaine‐Type Surfactants

Zhu

Wang

et al. 2013

J Surfact & Detergents

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Sulfobetaine‐type surfactants containing a hydroxy group were synthesized by the reaction of long chain monoalkyl dimethyl tertiary amine with 3‐chloro‐2‐hydroxypropanesulfonic acid sodium salt. The structures were characterized by 1H NMR and ESI‐MS. Their critical micelle concentrations (CMC) in aqueous solution were determined by the plate method in the temperature rang from 298.15 to 328.15 K. The thermodynamic parameters of micellization (ΔGmicθ, ΔHmicθ and ΔSmicθ) and surface adsorption (ΔGadθ, ΔHadθ and ΔSadθ) were calculated from CMC data. The results showed that the micellization and surface adsorption of these surfactants in aqueous solution was a spontaneous and entropy‐driven process. The micellization and surface adsorption became easier when the alkyl chain length increased from 12 carbon atoms to 14. The enthalpy–entropy compensation of micellization and adsorption was investigated. The compensation temperature were found to be (311 ± 2) K for both micellization and adsorption. The ΔHmic∗ and ΔHad∗ decreased, but the ΔSmic∗ and ΔSad∗ increased with increasing the hydrophobic chain length from 12 to 14.

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Thermodynamics of Micellization of Sulfobetaine Surfactants in Aqueous Solution

Cited by 28 publications

References 21 publications

Surface and Antimicrobial Activity of Sulfobetaines

Surface and Antimicrobial Activity of Sulfobetaines

Synergistic Effects of Lignin-Phenol-based Nonionic Surfactant with Anionic Surfactants in Aqueous Solution

Thermodynamic Properties of Sulfobetaine‐Type Surfactants

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