User:Moira M. Esson/Notebook/CHEM-581/2012/10/01

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Objectives

  1. Crosslink glutaraldehyde film (PVOH MW 22K)
  2. 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

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




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