User:Klare Lazor/Notebook/Chem-496-001/2012/09/19: Difference between revisions
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==Description== | ==Description== | ||
General Protocol: | |||
#Allow the glutaraldehyde PVOH film to completely air dry | |||
#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 | |||
#Heat the prepared solution to 70°C(on hot plate turn temperature to 160°C) | |||
#Place film in solution for 1 hour.(Make sure the temperature remains at 70°C) | |||
#Prepare 100mL 1% aqueous HCl solution. Heat solution to 70°C | |||
#Remove film from the solution and rinse with deionized H<sub>2</sub>O | |||
#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) | |||
#Prepare 0.2M sodium bicarbonate solution | |||
#After 30 minutes, remove film from 1% HCl solution and place in 0.2M sodium bicarbonate solution for ~15minutes | |||
#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). | |||
#Weigh PVOH film. Record mass | |||
==Data== | ==Data== |
Revision as of 05:15, 19 September 2012
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ObjectiveDescriptionGeneral Protocol:
Data
NotesThis area is for any observations or conclusions that you would like to note.
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