User:Moira M. Esson/Notebook/CHEM-581/2012/08/29: Difference between revisions
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==Polyvinyl alcohol(PVOH) film preparation == | ==Polyvinyl alcohol(PVOH) film preparation == | ||
* General | * General Procedure: | ||
**Place 0.5g PVOH in a 10mL beaker with a small stir bar | **Place 0.5g PVOH in a 10mL beaker with a small stir bar | ||
**Add 3mL of water | **Add 3mL of water | ||
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**Quickly pour solution into a Teflon dish. If excess gel is present remove with tweezers | **Quickly pour solution into a Teflon dish. If excess gel is present remove with tweezers | ||
**Allow film to air dry overnight in fume hood | **Allow film to air dry overnight in fume hood | ||
*Prepared PVOH films using general | *Prepared PVOH films using general procedure | ||
**0.5g PVOH (MW 130,000) in 3mL water | **0.5g PVOH (MW 130,000) in 3mL water | ||
**1.0g PVOH (MW 130,000) in 5mL water | **1.0g PVOH (MW 130,000) in 5mL water |
Revision as of 10:09, 30 August 2012
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Polyvinyl alcohol(PVOH) film preparation
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