Difference between revisions of "Amphiphilic"

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== Introduction ==
 
== Introduction ==
  
"Amphiphilic" is a term used to describe the properties of chemicals. A chemical substance being amphiphilic  
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"Amphiphilic" is used to describe the properties of a certain group of chemicals. A chemical substance being amphiphilic possesses both [[hydrophilic]] and [[lipophilic]] functional groups. As a result, amphiphilic compounds show good affinity for both water and oil, and have relatively high solubility in polar solvents like water and some non-polar solvents.
  
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== Structure and examples of amphiphilic molecules ==
  
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In amphiphilic molecules, the hydrophilic group is usually charged and highly polar. Examples include carboxylates -RCO<sub>2</sub><sup>-</sup> and sulfonates -SO<sub>3</sub><sup>-</sup> with negative charges and amines -NH<sub>3</sub><sup>+</sup> with positive charges.
  
 
See also:
 
See also:
  
 
[[Etymology and organization of surfactants#Etymology|Amphiphilic]] in [[Surfactants]] from [[Main Page#Lectures for AP225|Lectures for AP225]].
 
[[Etymology and organization of surfactants#Etymology|Amphiphilic]] in [[Surfactants]] from [[Main Page#Lectures for AP225|Lectures for AP225]].
 
  
 
== Keyword in references: ==
 
== Keyword in references: ==
  
 
[[Amphiphilic Crescent-Moon-Shaped Microparticles Formed by Selective Adsorption of Colloids]]
 
[[Amphiphilic Crescent-Moon-Shaped Microparticles Formed by Selective Adsorption of Colloids]]

Revision as of 22:22, 8 December 2011

Written by Yuhang Jin, AP225 2011 Fall.

Introduction

"Amphiphilic" is used to describe the properties of a certain group of chemicals. A chemical substance being amphiphilic possesses both hydrophilic and lipophilic functional groups. As a result, amphiphilic compounds show good affinity for both water and oil, and have relatively high solubility in polar solvents like water and some non-polar solvents.

Structure and examples of amphiphilic molecules

In amphiphilic molecules, the hydrophilic group is usually charged and highly polar. Examples include carboxylates -RCO2- and sulfonates -SO3- with negative charges and amines -NH3+ with positive charges.

See also:

Amphiphilic in Surfactants from Lectures for AP225.

Keyword in references:

Amphiphilic Crescent-Moon-Shaped Microparticles Formed by Selective Adsorption of Colloids