User:Douglas M. Fox/Notebook/AU CHEM-581 F2012 Lab Support/2012/08/21

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Crosslinking PVOH

  • Preparation of crosslinking solution
    • 50 mL water, 10 g Na2SO4, 1 mL H2SO4 (~40 drops)
    • Stirred in 150 mL tall form beaker over medium heat to 70°C
  • Crosslinlinking Protocol
    • Place films in 70°C solution for 90 min; however
    • Films still partially liquid
    • Placed on warm hot plate (turned off) overnight