Interfacial area generation in two-phase systems and its effect on kinetics of phase transfer catalyzed reactions

Tetrahedron ◽  
1999 ◽  
Vol 55 (20) ◽  
pp. 6261-6274 ◽  
Author(s):  
Charles M. Starks
Keyword(s):  
Phase Transfer ◽  
Interfacial Area ◽  
Two Phase ◽  
Phase Systems ◽  
Catalyzed Reactions ◽  
Kinetics Of

scholarly journals Interfacial Processes—The Key Steps of Phase Transfer Catalyzed Reactions

Catalysts ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1436
Author(s):  
Mieczysław Mąkosza ◽  
Michał Fedoryński
Keyword(s):  
Experimental Evidence ◽  
Phase Transfer ◽  
Initial Step ◽  
Organic Anions ◽  
Two Phase ◽  
Interfacial Processes ◽  
Phase Systems ◽  
Catalyzed Reactions ◽  
Key Steps

After short historical introduction, interfacial mechanism of phase transfer catalyzed (PTC) reactions of organic anions, induced by aqueous NaOH or KOH in two-phase systems is formulated. Subsequently experimental evidence that supports the interfacial deprotonation as the key initial step of these reactions is presented.

On the kinetics of phase separation in aqueous two-phase systems

1998 ◽  
Vol 711 (1-2) ◽  
pp. 319-329 ◽  
Author(s):  
M.H Salamanca ◽  
J.C Merchuk ◽  
B.A Andrews ◽  
J.A Asenjo
Keyword(s):  
Phase Separation ◽  
Two Phase ◽  
Aqueous Two Phase Systems ◽  
Phase Systems ◽  
Kinetics Of

scholarly journals Tiny Bubbles

2009 ◽  
Vol 17 (1) ◽  
pp. 3-5
Author(s):  
Stephen W. Carmichael
Keyword(s):  
Lower Energy ◽  
Critical Role ◽  
Interfacial Area ◽  
Consumer Products ◽  
Phase System ◽  
Two Phase ◽  
Liquid Phases ◽  
Phase Systems ◽  
Two Phases

This is not an article about the song made famous by the late (great) Don Ho. This is about a breakthrough in the understanding of how micrometer-sized bubbles can be stabilized for long periods of time. This can influence the taste, smell, and consistency of consumer products including food and cosmetics.In two-phase systems, which can include air (as bubbles) suspended within a liquid, the structures of the dispersed (bubbles) and continuous (liquid) phases play a critical role in determining the properties of the material. There is also the function of time in that the microstructure of the dispersed phase continuously evolves toward a state of lower energy by minimizing the surface area between the two phases (referred to as the interfacial area). In the long term, this time evolution diminishes the usefulness of two-phase systems. Emilie Dressaire, Rodney Bee, David Bell, Alex Lips, and Howard Stone have devised a way to stabilize a two-phase system for time periods of a year or longer.

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