User:Karlena L. Brown/Notebook/PVOH Research/Entry Base: Difference between revisions
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** Then, using a graduated cylinder add ~ 5 mL H<sub>2</sub>O to the beaker | ** Then, using a graduated cylinder add ~ 5 mL H<sub>2</sub>O to the beaker | ||
# Standard PVOH Film Protocol | |||
* After adding and combining PVOH (MW 130,000) in small beakers with H<sub>2</sub>O, add stir bars and prepare to stir solution. | * After adding and combining PVOH (MW 130,000) in small beakers with H<sub>2</sub>O, add stir bars and prepare to stir solution. | ||
* On hot plate, stir and heat both beaker solutions at 70-80°C for ~ 12 min or until PVOH dissolves. | * On hot plate, stir and heat both beaker solutions at 70-80°C for ~ 12 min or until PVOH dissolves. | ||
* Once the PVOH solids thoroughly dissolve in solution, pour each solution in a Teflon dish to sit, cool, and dry in a fume hood for ~ 1 day. | * Once the PVOH solids thoroughly dissolve in solution, pour each solution in a Teflon dish to sit, cool, and dry in a fume hood for ~ 1 day. | ||
# Notes | |||
* An additional 2-3 mL H<sub>2</sub>O was added to each solution to aid the dissolving of the PVOH | * An additional 2-3 mL H<sub>2</sub>O was added to each solution to aid the dissolving of the PVOH | ||
* Heat was reduced when solutions began to boil too rapidly | * Heat was reduced when solutions began to boil too rapidly |
Revision as of 21:56, 31 August 2012
PVOH Research | <html><img src="/images/9/94/Report.png" border="0" /></html> Main project page |
PVOH Film Preparations
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