Objectives
- Crosslink glutaraldehyde film (PVOH MW 22K)
- Test solubility:
- PVOH MW 22000+HCl+10%Maleic Acid
Glutaraldehyde Crosslinking
- The General Protocol described on 9/14/12 was followed
- Observations:
- The sides of the glutaraldehyde film started to curl upwards ~20minutes into heating in the first fixant solution. When pushing down with a plastic pipette, the film was resubmerged in H2O and uncurled
- After 1hr in fixant solution, the film had a more rubber like texture
- Note:
- The crosslinked glutaraldehyde film was stored in deionized H2O
- during the 30min. stir with 1%HCl, the temperature dropped to 68°C at approximately 12 minutes into the stir. The heat was immediately increased to 70°C
Solubility
- The General protocol for testing viscosity was followed
- Observations:
- The PVOH MW 22000+HCl+10%Maleic Acid film was allowed to stir for 1 hour. Although the film did not completely dissolve after 1 hour, the size of the film did shrink drastically
- Stored the film that remained after 1hr. stirring for further testing
Viscosity Calculations
- Viscosity of pure H2O at 25°C
Trial [ ]
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Time [s]
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1 |
241.22
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2 |
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3 |
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