User:Klare Lazor/Notebook/Chem-496-001/2012/09/19

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==Description==
==Description==
 +
General Protocol:
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#Allow the glutaraldehyde PVOH film to completely air dry
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#Prepare a solution of 100mL H<sub>2</sub>O, 2mL concentrated H<sub>2</sub>SO<sub>4</sub>, and 20g Na<sub>2</sub>SO<sub>4</sub> in a 150mL beaker. Place stir bar in beaker and a Buchner funnel top over the stir bar
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#Heat the prepared solution to 70°C(on hot plate turn temperature to 160°C)
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#Place film in solution for 1 hour.(Make sure the temperature remains at 70°C)
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#Prepare 100mL 1% aqueous HCl solution. Heat solution to 70°C
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#Remove film from the solution and rinse with deionized H<sub>2</sub>O
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#Place stir bar in 1% HCl solution and a Buchner funnel top over of the stir bar. Add the PVOH film to the solution
 +
#Allow film to remain in 1% HCl solution for 30 minutes.(Be sure to keep a constant 70°C)
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#Prepare 0.2M sodium bicarbonate solution
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#After 30 minutes, remove film from 1% HCl solution and place in 0.2M sodium bicarbonate solution for ~15minutes
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#Remove film from dilute sodium bicarbonate solution with tweezers. Rinse with deionized H<sub>2</sub>O and dry film on paper towel(dabbing gently).
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#Weigh PVOH film. Record mass
==Data==
==Data==

Revision as of 08:15, 19 September 2012

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Objective

Description

General Protocol:

  1. Allow the glutaraldehyde PVOH film to completely air dry
  2. Prepare a solution of 100mL H2O, 2mL concentrated H2SO4, and 20g Na2SO4 in a 150mL beaker. Place stir bar in beaker and a Buchner funnel top over the stir bar
  3. Heat the prepared solution to 70°C(on hot plate turn temperature to 160°C)
  4. Place film in solution for 1 hour.(Make sure the temperature remains at 70°C)
  5. Prepare 100mL 1% aqueous HCl solution. Heat solution to 70°C
  6. Remove film from the solution and rinse with deionized H2O
  7. Place stir bar in 1% HCl solution and a Buchner funnel top over of the stir bar. Add the PVOH film to the solution
  8. Allow film to remain in 1% HCl solution for 30 minutes.(Be sure to keep a constant 70°C)
  9. Prepare 0.2M sodium bicarbonate solution
  10. After 30 minutes, remove film from 1% HCl solution and place in 0.2M sodium bicarbonate solution for ~15minutes
  11. Remove film from dilute sodium bicarbonate solution with tweezers. Rinse with deionized H2O and dry film on paper towel(dabbing gently).
  12. Weigh PVOH film. Record mass

Data

  • Add data and results here...

Notes

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