Dynamic Surface Properties of Poly(vinylpyrrolidone) Solutions

Noskov, Boris A.; Akentiev, Alexander V.; Miller, R.

doi:10.1006/jcis.2002.8614

Cited by 53 publications

(76 citation statements)

References 38 publications

(88 reference statements)

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“…The strength of inhibitor is reduced significantly in the presence of crude M irrespective of whether distilled water or brine solution was used. Some researchers have proposed that changes in interfacial tension between liquid hydrocarbon and aqueous phases due to the presence of inhibitor may be the reason for this unexpected behavior [38,39]. These surface active inhibitors decrease the surface tension and consequently improve the contact between the liquid phases, which allows increased gas diffusion with a lower barrier to mass transfer [40].…”

Section: Resultsmentioning

confidence: 96%

Natural gas hydrate formation and inhibition in gas/crude oil/aqueous systems

Daraboina

Pachitsas

Solms

2015

Fuel

114

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Section: Resultsmentioning

confidence: 96%

Natural gas hydrate formation and inhibition in gas/crude oil/aqueous systems

Daraboina

Pachitsas

Solms

2015

Fuel

114

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“…According to the literature [35][36][37], the exchange of macromolecules between the surface layer and the bulk phase can be neglected, but the exchange of monomers between different regions of the surface layer has to be taken into account. There are two main parts of the surface film: one is the proximal region (a relatively narrow concentrated region contiguous to the gas phase), the other is the distal region (a region of tails and loops protruding into the bulk where the concentration of monomers is lower) [35].…”

Section: Interfacial Dilational Viscoelasticity Of Gelatin Solutionmentioning

confidence: 99%

Aggregation behaviors of gelatin with cationic gemini surfactant at air/water interface

Feng

et al. 2007

International Journal of Biological Macromolecules

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“…The first of these methods is the drop profile analysis tensiometer, which is used to measure surface tension by analyzing the shape of a droplet (bubble) [70][71][72], which can be operated in the low-frequency range from 10 -3 to 0.2 Hz. The second device is the capillary pressure tensiometer, which is used to directly measure capillary pressure [73] at higher frequencies of 0.1-100 Hz (in some cases, up to 500 Hz).…”

Section: Methods Based On the Oscillationmentioning

confidence: 99%

“…Therefore, the discussed method of an oscillating barrier is used at oscillation frequencies not higher than 0.2 Hz [118,122]. The method was applied in [123][124][125][126][127] and discussed in detail in a recent review [128].…”

Section: Oscillating Barrier Methodsmentioning

confidence: 99%

Methods of measuring rheological properties of interfacial layers (Experimental methods of 2D rheology)

2009

Self Cite

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-Current methods of studying the rheological properties of interfacial layers at the interfaces of fluids are reviewed. This area of research includes two-dimensional 2D rheology. Regardless of the similarities between the parameters of rheological properties of two-dimensional and bulk (three-dimensional) systems, when measuring surface properties, it is necessary to reformulate the main experimental methods to allow for the different dimensions of surface and bulk characteristics of material. Parameters of shear and dilational (measured upon expansion-compression) properties of interfacial layers are distinguished, and the latter are considered to be independent parameters of a system. The most attention was given to the rotational methods of measuring shear viscosity and the components of the complex 2D elastic modulus, as well as to measuring surface tension upon harmonic changes of the bubble (droplet) surface area, which allows characteristics of the dilational behavior of thin liquid films to be determined. Both groups of methods are widely used in laboratory practice and realized in the form of a number of original and commercial instruments. Dilational measurements of interfacial layers can also be performed with oscillations of a movable barrier on a Langmuir trough. In addition, methods based on the propagation of capillary waves across the surface of a liquid, as well as rarer methods of capillary flow in thin channels forced by either a surface tension gradient or the motion of the interface, are considered.

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Dynamic Surface Properties of Poly(vinylpyrrolidone) Solutions

Cited by 53 publications

References 38 publications

Natural gas hydrate formation and inhibition in gas/crude oil/aqueous systems

Natural gas hydrate formation and inhibition in gas/crude oil/aqueous systems

Aggregation behaviors of gelatin with cationic gemini surfactant at air/water interface

Methods of measuring rheological properties of interfacial layers (Experimental methods of 2D rheology)

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