- Time to make some beads!
- Over the next few weeks we plan to refine this process and discover the most efficient synthesis of these beads.
- Begin the Synthesis
- Measure out 0.0550g of Clay and 0.5000g PVA and place in a scintillating vial
- Dissolve the Solid
- Figuring out how much 1M HCl is necessary to completely dissolve the PVA and Clay
- we want the minimum amount of acid but still dissolve in a timely fashion
- we determined that we need at least 6mL of HCl and heat
- attempt at beads
- using a Pasteur pipette, drop the PVA-clay into solution
- 0.0550g Clay + 0.5000g PVA
- 0.0554g Clay + 0.4989g PVA
- PVA-Clay was not strong enough to hold a sphere but rather made string/fibers. This can be weaved into a sort of bead but this cannot be measured
Hexane Trial #1
- HCl is immiscible in Hexane, spherical constitution of beads was overall maintained. Upon adding to Glutaraldehyde, the beads did not stay together.
- Used 250μL Gluteraldehyde in 10mL Hexane
Hexane Trial #2
- This time the Glutaraldehyde was rapidly stirred and the PVA-Clay solution was slowly dropped in. Bead formation was observed while stirring, however the beads were not given enough time to finish cross linking and stuck together.
- Used 100μL Glutaraldehyde in 10mL Hexane
Hexane Trial #3
- Bigger container and more time in between drops in order to allow more time to cross linking.
- 200μL Glutaraldehyde in 150mL Hexane
Hexane Trial #4
- Using a blender this time in attempt to make an emulsion.
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