Viscoelastic solutions formed by worm-like micelles of amine oxide surfactant

Brinchi, Lucia; Germani, Raimondo; Profio, Pietro Di; Marte, Luisa; Savelli, Gianfranco; Oda, Reïko; Berti, Debora

doi:10.1016/j.jcis.2010.02.035

Cited by 49 publications

(60 citation statements)

References 63 publications

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“…In the general context of complex fluids, they have received considerable attention from both theoreticians and experimentalists during past decades [2][3][4][5][6]. When micelles grow and entangle with each other above a critical concentration, the aggregates behave like polymers and known as Blive polymer^ [7].…”

Section: Introductionmentioning

confidence: 99%

Nanoparticles induced micellar growth in sodium oleate wormlike micelles solutions

Fan

Li²,

Zhang³

et al. 2015

Colloid Polym Sci

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The rheological behavior of anionic surfactant sodium oleate (NaOA) in the presence of inorganic salt of sodiu m c a r b o n a t e ( N a 2 C O 3 ) , o r g a n i c s a l t o f nOctyltrimethylammonium bromide (OTAB) and nano-sized silica particles (nano SiO 2 ) was studied in detail. Regardless of the surfactant concentration (NaOA), OTAB was stronger than that of Na 2 CO 3 in promoting the rapid growth of NaOA micelles, resulting in higher viscosity of NaOA aqueous solutions. It was found that nano SiO 2 nearly not affects solution viscosity in the NaOA/Na 2 CO 3 system. However, results of NaOA/OTAB system in the presence of nano SiO 2 show that nano SiO 2 promoted wormlike micelles formation and enhanced the bulk viscosity. Simultaneously, the presence of nano SiO 2 also facilitated the branched wormlike micelles formation as confirmed by viscosity and cryo-TEM measurements because of the electrostatic interactions between wormlike micelles and nano SiO 2 .

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Section: Introductionmentioning

confidence: 99%

Nanoparticles induced micellar growth in sodium oleate wormlike micelles solutions

Fan

Li²,

Zhang³

et al. 2015

Colloid Polym Sci

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“…19,20,[36][37][38][39][40][41][42][43][44][45][46][47] In previous works, Kumar et al 19 found that elastic hydrogel was formed by the zwitterionic surfactant erucyl dimethyl amidopropyl betaine (EDAB, with an unsaturated C 22 tail) and Chu et al 20 also found that hydrogel was formed by concentrated 3-(N-erucamido-propyl-N,N-dimethyl ammonium) propane-sulfonate (EDAS, with an unsaturated C 22 tail) in the presence of NaCl. 19,20,[36][37][38][39][40][41][42][43][44][45][46][47] In previous works, Kumar et al 19 found that elastic hydrogel was formed by the zwitterionic surfactant erucyl dimethyl amidopropyl betaine (EDAB, with an unsaturated C 22 tail) and Chu et al 20 also found that hydrogel was formed by concentrated 3-(N-erucamido-propyl-N,N-dimethyl ammonium) propane-sulfonate (EDAS, with an unsaturated C 22 tail) in the presence of NaCl.…”

Section: Introductionmentioning

confidence: 99%

Formation and phase transition of hydrogel in a zwitterionic/anionic surfactant system

Fan

Zhao

et al. 2015

RSC Adv.

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The phase behavior and microstructure in a mixture of the zwitterionic surfactant N-hexadecyl-N,Ndimethyl-3-ammonio-1-propane sulfonate (HDPS) and anionic surfactant sodium dodecylsulfate (SDS) were studied. Analysis of its macroscopic appearance, tube inversion testing and rheological measurements were employed to characterize its phase behavior, and it was found that a hydrogel formed in an appropriate total concentration (C T ) and molar percentage of SDS (X SDS ) at 25 C for HDPS/ SDS systems. Microstructures in the hydrogel were identified to be long wormlike micelles and small spherical vesicles, using transmission electron microscopy (TEM). The coexistence of wormlike micelles and small vesicles brings an appropriate packing parameter (p), which indicates that the wormlike micelles reached a sufficient length and degree of entanglement to form the three-dimensional elastic hydrogel. The HDPS/SDS hydrogel transforms into a viscoelastic sol upon increasing the temperature, and the determined gel-sol transition temperature (T g-s ) has been determined to be around 30 C, using optical and rheological methods. Besides, adding salt causes the wormlike micelles to lengthen and the rheological properties of the solution to change, such that it may even induce a sol-gel phase transition in the mixed zwitterionic and anionic surfactant system.

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“…One reason for this interest is that the applications of surfactant wormlike micelles are almost based on the ability of micellar solutions to thin under shear flow but recover quickly after the cessation of flow, and this property is a result of the reaction of the micellar microstructure to the applied shear field. By far, the studied surfactant wormlike micelles encompass an enormous variety of systems such as pure surfactant systems [18] and mixed surfactant systems containing different surfactants [19][20][21][22]. The anionic surfactant sodium oleate (NaOA) is a very interesting object of study rheology behavior of systems containing surfactant, because it has the property of forming wormlike micelles with salts, polymers or other surfactants.…”

Section: Introductionmentioning

confidence: 99%

Rheological behavior of mixed system of ionic liquid [C8mim]Br and sodium oleate in water

Yue

et al. 2015

Front. Chem. Sci. Eng.

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We report on the rheological behavior of wormlike micelles constructed by ionic liquid surfactant [C 8 mim]Br (1-octyl-3-methylimidazolium bromide) and anionic surfactant sodium oleate (NaOA) in aqueous solution. The effects of surfactant composition, total surfactant concentration, added salts, and temperature were investigated. The prevailing surfactant effect at lower concentration and the leading cosolvent effect at higher concentration of [C 8 mim]Br may be the main reasons for appearance of well-established maximum in key rheological parameters with variation of surfactant composition and total surfactant concentration. The Cole-Cole plots demonstrate that the systems (total surfactant concentration falls within 0.17-0.35 mol$L -1 and molar ratio 0.33£R£0.50) fit the Maxwell's mechanical model as linear viscoelastic fluid. The addition of NaBr or sodium salicylate decreases significantly the viscosity and the relaxation time of the wormlike micelle solution but cannot change the value of plateau modulus G 0 . The present system has low rheological tolerance to temperature. The increase of temperature decreases the average contour length and viscosity of wormlike micelles and thus strengthens the relaxation progress of diffusion and weakens the relaxation progress of reptation. Increasing the temperature also decreases the value of plateau modulus G 0 and shifts the minimum value of the loss modulus G ″ min to higher frequencies.

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Viscoelastic solutions formed by worm-like micelles of amine oxide surfactant

Cited by 49 publications

References 63 publications

Nanoparticles induced micellar growth in sodium oleate wormlike micelles solutions

Nanoparticles induced micellar growth in sodium oleate wormlike micelles solutions

Formation and phase transition of hydrogel in a zwitterionic/anionic surfactant system

Rheological behavior of mixed system of ionic liquid [C8mim]Br and sodium oleate in water

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