Rheological properties of wormlike micelles in sodium oleate solution induced by sodium ion

Cao, Quan; Yu, Li; Zheng, Liqiang; Li, Ganzuo; Ding, Yuanhua; Xiao, Jianhong

doi:10.1016/j.colsurfa.2007.06.024

Cited by 50 publications

(29 citation statements)

References 29 publications

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“…As a surfactant, the critical micelle concentration of cationic OTAB is 0.14 mol/L [33], which is about 70 times larger than that of NaOA [15]. Therefore, there should present large amount of free OTAB monomers in the NaOA/OTAB system, which prefer to adsorb on the negative-charged surface of nano SiO 2 particles, resulting in the positive charged ones.…”

Section: Possible Mechanism Of Nanoparticle On Micellar Growthmentioning

confidence: 96%

“…Though Na 2 CO 3 is not only a strong electrolyte but also provides OH − , however, the presence of OH − would mainly delay the oleic acid (HOA) salting out from solution. As a result, wormlike micelles could be formed in a wide Na 2 CO 3 concentration region compared with NaCl [15].…”

Section: Microstructures Of Wormlike Micellesmentioning

confidence: 98%

“…As a result, p is increased, and then wormlike micelles are formed. Cao et al have studied the inorganic salts such as NaCl-, Na 2 CO 3 -, and NaOH-induced wormlike micelles formation in NaOA solution systematically [15]; they found out that the electrostatic interaction is the major cause in those systems. In the NaOA/Na 2 CO 3 system, the presence specifically of large amount of electrolytes such as Na 2 CO 3 strengthens the binding of Na + to NaOA micelles and decreases the repellence between ionic headgroup of NaOA in the oriented molecular layer, resulting in a smaller effective headgroup area that benefits wormlike micelles formation.…”

Section: Microstructures Of Wormlike Micellesmentioning

confidence: 99%

“…The mixture of NaOA and OTAB is selected to investigate the effect of nanosized silica particles (nano SiO 2 ) on the wormlike micelle formation. Though similar nanoparticles-induced wormlike micelles branching are well known due to the electrostatic interaction, however, most of the employed systems are cationic surfactants and opposite-charged nanoparticles [19,20,22] that suffered serious disadvantages and limited their applications [15]. As the best of our knowledge, it is the first report on the interaction between negative-charged nanoparticles and anionic surfactant wormlike micelles.…”

Section: Introductionmentioning

confidence: 97%

“…Kalur [14] showed that the addition of triethylammonium chloride (Et 3 NHCl) to NaOA solutions could induce the formation of wormlike micelles with certain counterions. The addition of inorganic salts, such as KCl, NaCl, Na 2 CO 3 , and NaCl/NaOH could give rise to a highly viscoelastic fluids of NaOA solution [14,15]. Recently, a new light-responsive viscoelastic fluid based on NaOA wormlike micelles was discovered by introducing the cationic azobenzene dye C 0 AZOC 2 IMB in the system [16].…”

Section: Introductionmentioning

confidence: 99%

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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: Possible Mechanism Of Nanoparticle On Micellar Growthmentioning

confidence: 96%

Section: Microstructures Of Wormlike Micellesmentioning

confidence: 98%

Section: Microstructures Of Wormlike Micellesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Nanoparticles induced micellar growth in sodium oleate wormlike micelles solutions

Fan

Li²,

Zhang³

et al. 2015

Colloid Polym Sci

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Rheological behavior of polycarbonate/ultrafine octaphenyl silsesquioxane (OPS) composites

Cheng

Hao

et al. 2016

J of Applied Polymer Sci

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Polycarbonate (PC)/ultrafine polyhedral oligomeric octaphenyl silsesquioxane (OPS) composites were prepared by melt mixing method. The morphology and rheological behavior of PC/ultrafine OPS composites were investigated by scanning electron microscopy (SEM) melt indexer, high pressure capillary rheometer, and strain‐controlled rheometer. The SEM results show that ultrafine OPS is dispersed in PC as the size of submicron and has a good dispersion in PC matrix, and a certain extent compatibility between PC and ultrafine OPS is found. OPS aggregation is found through the cross section at high ultrafine OPS content. The results of melt flow index (MFI) and capillary rheometer indicate that ultrafine OPS can effectively decrease the apparent viscosity and improve the flow property and processability of PC matrix as a lubricant. The oscillatory rheological analysis indicates that the storage modulus increases with increasing OPS content, and the appeared platform of storage modulus exhibits the solid‐like behavior and the formation of three‐dimensional network in the composites. The complex viscosity of PC/OPS composite shows a quasi‐Newtonian regime at low OPS content and a typical shear‐thinning behavior at high OPS content. The Cole–Cole, Han, and van Gurp plots show that ultrafine OPS particle is compatible with PC at low content (≤3 wt %), and interaction between particle and particle is the major factor when OPS at high content (≥6 wt %). © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43638.

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Formation and rheological properties of wormlike micelles by N-hexadecyl-N-methylpiperidinium bromide and sodium salicylate

et al. 2015

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Rheological properties of wormlike micelles in sodium oleate solution induced by sodium ion

Cited by 50 publications

References 29 publications

Nanoparticles induced micellar growth in sodium oleate wormlike micelles solutions

Nanoparticles induced micellar growth in sodium oleate wormlike micelles solutions

Rheological behavior of polycarbonate/ultrafine octaphenyl silsesquioxane (OPS) composites

Formation and rheological properties of wormlike micelles by N-hexadecyl-N-methylpiperidinium bromide and sodium salicylate

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