User:Jacob Esenther/Notebook/581/2014/10/31

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  • Time to attempt making more beads
    • We're ditching yesterdays attempts and going to try expand on Eleni's group. They were able to create ribbons of PVA-Clay however we would like to form beads. Here is their procedure notes.


  1. A column was set up with Glutaraldehyde and hexane. Air is being bubbled through the column so in the attempt to mix the two
  2. PVA-Clay will be dropped down the column

Hexane Trial

  • the PVA-Clay formed beads within the hexane and floated down the column. They did not crosslink fast enough if at all and they dissolved into the Glutaraldehyde.

Acetylnitrile Trial

  • We needed a solvent that would still form beads with the PVA-Clay while being miscible in water. The PVA-Clay however was not forming beads within the solute but rather clumps.

Organic-Glutaraldehyde Solution

  • We attempted to add acetone to Glutaraldehyde and then add hexane to get rid of the solvent layers. The solution was not hydrophobic enough to form beads however. When only a slight layer of hexane and stirring were applied, it yielded no good results.
  1. We have decided to abandon the beads and begin synthesis of ribbons
    1. We filled a column with acetone and 1.5mL of Glutaraldehyde
    2. we then dropped in the PVA-Clay



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