Download PDF by Monzer Fanun: Microemulsions Properties and Applications

By Monzer Fanun

ISBN-10: 1420089595

ISBN-13: 9781420089592

The powerful use of microemulsions has elevated dramatically up to now few a long time as significant commercial functions have accelerated in various fields. Microemulsions: homes and functions presents an entire and systematic review of all themes affecting microemulsion functionality and discusses the basic features, theories, and purposes of those dispersions.
Thoroughly encompassing the numerous advancements of the earlier ten years, this publication describes quite a lot of themes, together with interactions at microemulsion interfaces, new sorts of surfactants, and the basics of nanotechnology. It outlines experimental and standard size options in a number of microemulsified structures and offers trustworthy assurance of appropriate techniques.
Theory and Characterization Methods
The preliminary chapters disguise theoretical features of microemulsion formula, with specific specialise in methodologies for education. The ebook additionally addresses characterization equipment, together with X-ray diffraction, transmission electron microscopy (TEM), mild scattering, and small-angle neutron scattering. It contains discussions of viscosimetry, conductivity, ultrasonic speed, and nuclear magnetic resonance (NMR).
Practical Applications
The rest of the insurance specializes in present and capability functions of microemulsions. The e-book examines advertisement makes use of, together with biocatalysis and enzymatic reactions, foodstuff, the extraction of infected solids, pollutants keep watch over, dispersion of substances, and oil restoration. The participants additionally talk about using microemulsions as a response medium for the formation of polymeric and inorganic nanoparticles, and purposes in electrokinetic chromatography.
Comprising the paintings of a world group of colloid scientists, this e-book explains why microemulsions are used for the meant program, how they're made, and the way they react. every one bankruptcy incorporates a description of the basic phenomena and ideas fascinated with microemulsion approaches, emphasizing the mechanism of microemulsion formation and deformation. A precis of contemporary examine, the publication gets rid of the necessity to seek via dozens of arcane on-line magazine articles for severe info.

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Extra resources for Microemulsions Properties and Applications

Example text

Indd xxx Valeria Tripodi Analytical Chemistry and Physicochemistry Department Faculty of Pharmacy and Biochemistry University of Buenos Aires Buenos Aires, Argentina 11/10/2008 10:02:48 PM Contributors Stefan Wellert Physical Chemistry I University of Bayreuth Bayreuth, Germany A. indd xxxii 11/10/2008 10:02:48 PM Phase Diagram 1 AApproach to Microemulsions Stig E. Friberg and Patricia A. 1 Introduction ..................................................................................................

All of them are kinetically stable. They are better stable than emulsions with less creaming as the droplet sizes are much smaller. Further, for the formation of emulsion, the requirement of surfactant is low (about 1%–2%) whereas for microemulsion the surfactant required is around 20% or more. The formation of microemulsion is a spontaneous process, requiring no energy or a very small amount of energy, whereas for emulsion and miniemulsion the energy requirement is appreciable. It should be noted that there may arise a confusion regarding the difference between microemulsion and a solution.

Can distinguish a microemulsion from a solution. The molecularly dispersed solutions do not have microstructure, but microemulsions have. Emulsions, on the other hand, are nontransparent. Surfactants, particularly nonionic surfactants, can form reverse micelles in organic media. But the organic media must not be completely dry. If the medium is completely dry, then reverse micelles do not form. The reverse micelle is some what like water-in-oil (w/o) microemulsion. There, amount of water present is significantly low that satisfies the hydration of the hydrophilic head group.

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Microemulsions Properties and Applications by Monzer Fanun


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