Electrophoretic light scattering of alkyl- and oleyldimethylamine oxide micelles

Imae, Toyoko; Hayashi, Naoki

doi:10.1021/la00036a010

Cited by 25 publications

(13 citation statements)

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“…140 Similar to gemini surfactants, the dimers favour a low surface curvature, and consequently the formation of long WLMs. 158,164,166 As a result, a transition from spheres to longer worms is achieved when a approaches 0.5. 161,164 Similar to C 12 DMAO, the ionization of C 14 DMAO 138 also has a remarkable effect on the micellar length and thereby the viscoelasticity.…”

Section: Ph-responsive Wlmsmentioning

confidence: 99%

Smart wormlike micelles

2013

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A major scientific challenge of the past decade pertaining to the field of soft matter has been to craft 'adaptable' materials, inspired by nature, which can dynamically alter their structure and functionality on demand, in response to triggers produced by environmental changes. Amongst these, 'smart' surfactant wormlike micelles, responsive to external stimuli, are a particularly recent area of development, yet highly promising, given the versatility of the materials but simplicity of the design-relying on small amphiphilic molecules and their spontaneous self-assembly. The switching 'on' and 'off' of the micellar assembly structures has been reported using electrical, optical, thermal or pH triggers and is now envisaged for multiple stimuli. The structural changes, in turn, can induce major variations in the macroscopic characteristics, affecting properties such as viscosity and elasticity and sometimes even leading to a spontaneous and effective 'sol-gel' transition. These original smart materials based on wormlike micelles have been successfully used in the oil industry, and offer a significant potential in a wide range of other technological applications, including biomedicine, cleaning processes, drag reduction, template synthesis, to name but a few. This review will report results in this field published over the last few years, describe the potential and practical applications of stimuli-responsive wormlike micelles and point out future challenges.

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Section: Ph-responsive Wlmsmentioning

confidence: 99%

Smart wormlike micelles

2013

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“…The electrostatic potential is one of the important factors for the stabilization of dispersed colloidal particles in aqueous medium [32]. Generally, the surface charge density of surfactant aggregates is in close connection with the electrostatic potential, which can be evaluated by electrophoretic mobility.…”

Section: Electrophoretic Mobilitymentioning

confidence: 99%

Aggregation behavior in mixed system of double-chained anionic surfactant with single-chained nonionic surfactant in aqueous solution

Yue

Cao

Yuan

et al. 2006

Journal of Colloid and Interface Science

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“…A useful physical tool that can provide such information is reflection ellipsometry [1]. Surfactant self-aggregation in the bulk phase can be investigated with a variety of physicochemical methods including size exclusion chromatography, small-angle neutron scattering (SANS), electron spin resonance (ESR), nuclear magnetic resonance (NMR), photon correlation spectroscopy, fluorescence spectroscopy and cryo-transmission electron microscopy (cryo-TEM) [2][3][4][5][6][7][8][9][10][11][12][13]. In past decades, this arsenal has been supplemented by atomic force microscopy (AFM), neutron reflectivity and non-linear optical methods, opening up new vistas in the research on static and transient nano-structures formed by surfactants in solutions and at interfaces [14][15][16].…”

Section: Introductionmentioning

confidence: 99%