Difference between revisions of "Sol-Gel Transition"

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== Definition ==
 
== Definition ==
The sol-gel Transition (also known as gelation) is simply a change from a liquid state to a gel state. In the liquid state, components in the liquid move about the liquid. In the gel state, these sub-units bond together to form a network extending through the whole substance. This network gives the material an elasticity, a solid-like property.
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The sol-gel transition (also known as gelation) is simply a change from a liquid state to a gel state. In the liquid state, components in the liquid move about the liquid. In the gel state, these sub-units bond together to form a network extending through the whole substance. This network gives the material an elasticity, a solid-like property.
  
 
[[image: 780px-Wiki SolGel1.jpg|400px|thumb|left|This cartoon shows the free-floating subunits in the sol (liquid) state, and the network formed in the gel state. *From Wikimedia Commons]]
 
[[image: 780px-Wiki SolGel1.jpg|400px|thumb|left|This cartoon shows the free-floating subunits in the sol (liquid) state, and the network formed in the gel state. *From Wikimedia Commons]]

Revision as of 13:15, 4 November 2009

Under Construction by Rebecca Perry

Definition

The sol-gel transition (also known as gelation) is simply a change from a liquid state to a gel state. In the liquid state, components in the liquid move about the liquid. In the gel state, these sub-units bond together to form a network extending through the whole substance. This network gives the material an elasticity, a solid-like property.

This cartoon shows the free-floating subunits in the sol (liquid) state, and the network formed in the gel state. *From Wikimedia Commons

Examples

-Epoxy

-Gelatin

-Pectin, (jam, jelly)

References

[1] R. Jones, "Soft Condensed Matter," Oxford University Press Inc., New York (2002).