User:Moira M. Esson/Notebook/CHEM-581/2012/09/14: Difference between revisions

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#After 30 minutes, remove film from 1% HCl solution and place in 0.2M sodium bicarbonate solution for ~15minutes
#After 30 minutes, remove film from 1% HCl solution and place in 0.2M sodium bicarbonate solution for ~15minutes
<br>
<br>
''Solution Preparations'':
'''Solution Preparations'''
<br>
{| {{table}}
'''Solution 1 preparation'''
| align="center" style="background:#f0f0f0;"|''''''
| align="center" style="background:#f0f0f0;"|'''Solution 1'''
| align="center" style="background:#f0f0f0;"|'''1% Aqueous HCl'''
| align="center" style="background:#f0f0f0;"|'''0.2M Sodium Bicarbonate'''
| align="center" style="background:#f0f0f0;"|'''Film #4'''
|-
| Mass Na(g)||1.0855||0.9964||1.0373||1.0106||1.0178||1.0215
|-
| Amount of [HCl] added(drop)||0||2||0||2||0||2
|-
| Amount of [H<sub>3<sub/>PO<sub>4 added(drop)||2||0||2||0||2||0
|-
| Amount of succinic acid added(g)||0||0||0||0||0.1528||0.1021
|-
| Amoun




Revision as of 12:16, 14 September 2012

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Objectives

  • Crosslink the prepared glutaraldehyde film
  • Run DSC on 8 films
  • Run FTIR


Crosslinking of Glutaraldehyde film

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


Solution Preparations

' Solution 1 1% Aqueous HCl 0.2M Sodium Bicarbonate Film #4
Mass Na(g) 1.0855 0.9964 1.0373 1.0106 1.0178 1.0215
Amount of [HCl] added(drop) 0 2 0 2 0 2
Amount of [H3PO4 added(drop) 2 0 2 0 2 0
Amount of succinic acid added(g) 0 0 0 0 0.1528 0.1021
Amoun



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