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Objective
- Make PVA beads and set up dye uptake for Malachite Green.
Lab Protocol
Malachite Green Uptake
- 100 mg of beads
- 5 g MG (concentrations of 0.5, 1.00, 1.53, 3, 8.88, 15.3, and 25.3 ppm)
- incubate for one week
- UV-Vis to analyze change in concentration of MG solution
Data
MG uptake for PVA/clay
- sample 1: beads 0.10135 g, 0.5 ppm MG 5.16608 g
- sample 2: beads 0.10506 g, 1.00 ppm MG 4.99864 g
- sample 3: beads 0.10540 g, 1.53 ppm MG 5.02237 g
- sample 4: beads 0.10402 g, 3 ppm MG 5.01150 g
- sample 5: beads 0.10247 g, 8.88 ppm MG 5.03009 g
- sample 6: beads 0.09905 g, 15.3 ppm MG 5.02960 g
- sample 7: beads 0.10782 g, 25.3 ppm MG 5.23447 g
MG uptake for PVA/clay Second Sample Set
- sample 1b: beads 0.10205 g, 0.5 ppm MG 5.07035 g
- sample 2b: beads 0.10874 g, 1.00 ppm MG 5.07701 g
- sample 3b: beads 0.11161 g, 1.53 ppm MG 5.08247 g
- sample 4b: beads 0.10001 g, 3 ppm MG 5.11842 g
- sample 5b: beads 0.10398 g, 8.88 ppm MG 5.11321 g
- sample 6b: beads 0.10367 g, 15.3 ppm MG 5.12320 g
- sample 7b: beads 0.10402 g, 25.3 ppm MG 5.02527 g
DSC Analysis: Glass Transition point of PVA in degrees C
- PVA_JB : 75.88
- PVA_AJRL: 75.28
- PVA_JN: 76.81
- PVA_RL: 78.07
- PVA/clay beads were potentially too cross-linked, no real glass transition was able to be seen.
Notes
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Project name
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