Difference between revisions of "Charge Stabilization in Nonpolar Solvents"

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[http://www.deas.harvard.edu/projects/weitzlab/papers/hsu.langmuir.2005.pdf Charge Stabilization in Nonpolar Solvents.]
 
[http://www.deas.harvard.edu/projects/weitzlab/papers/hsu.langmuir.2005.pdf Charge Stabilization in Nonpolar Solvents.]
  
M. F. Hsu, E. R. Dufresne, and D. A. Weitz, Langmuir 21, 4881-4887 (2005)  
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M. F. Hsu, E. R. Dufresne, and D. A. Weitz, Langmuir 21, 4881-4887 (2005).
  
 
== Keywords ==
 
== Keywords ==
  
[[Colloidal Dispersion]], interaction potential, [[Micelle]], surface potential, Debye length
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[[Colloidal Dispersion]], interaction potential, Reverse [[Micelle]], surface potential, Debye length
  
 
== Summary ==
 
== Summary ==
  
Currently writing...
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This paper investigates the use of surfactants to control charges is nonpolar solvents (<math>\epsilon \approx 2</math> versus for an aqueous solution <math>\epsilon \approx 80</math>) where the electrostatic charge barrier is much greater than ''kT''. Understanding nonpolar solvents and colloid interactions are important for industrial and commercial applications such as [http://en.wikipedia.org/wiki/Electronic_paper#Electrophoretic electrophoretic ink] or the stabilization of soot particles in oil.  Surfactants play the key role in creating in such solutions the charge-stabilizing aggregates.  The research presented in this paper focuses on reverse micelles in nonpolar solvents and investigates the electrokinetics and thermodynamic properties to explain on the micelles control charge.
  
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Currently writing...
  
 
== Soft Matter ==
 
== Soft Matter ==
  
 
Currently writing...
 
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Revision as of 20:21, 27 November 2009

Original Entry by Michelle Borkin, AP225 Fall 2009

Overview

Charge Stabilization in Nonpolar Solvents.

M. F. Hsu, E. R. Dufresne, and D. A. Weitz, Langmuir 21, 4881-4887 (2005).

Keywords

Colloidal Dispersion, interaction potential, Reverse Micelle, surface potential, Debye length

Summary

This paper investigates the use of surfactants to control charges is nonpolar solvents (<math>\epsilon \approx 2</math> versus for an aqueous solution <math>\epsilon \approx 80</math>) where the electrostatic charge barrier is much greater than kT. Understanding nonpolar solvents and colloid interactions are important for industrial and commercial applications such as electrophoretic ink or the stabilization of soot particles in oil. Surfactants play the key role in creating in such solutions the charge-stabilizing aggregates. The research presented in this paper focuses on reverse micelles in nonpolar solvents and investigates the electrokinetics and thermodynamic properties to explain on the micelles control charge.


Currently writing...

Soft Matter

Currently writing...