Objectives
- Finish crosslinking all films prepared with glutaraldehyde
- Use the ion selective electrode to measure the CuSO4 solutions made on 9/28/2012 by Melissa Novy and Karlena Brown
- Crosslink PVOH MW 130,000 film with [HCl]
Crosslinking
- The general protocol for crosslinking glutaraldehyde films described on 9/14/2012 was used
Crosslinking Glutaraldehyde films
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PVOH MW 22,000 0.8wt% glutaraldehyde+0.1010g 100% CEC surfactant clay
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PVOH MW 22,000 0.8wt% glutaraldehyde+NaMT
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PVOH MW 22,000 0.8wt% glutaraldehyde+PDMS
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| Amount solution 1 added(mL) |
100.0 |
100.0 |
100.0
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| Amount of 1% aqueous HCl added (mL) |
100.0 |
100.0 |
98.0
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| Amount of 0.2M sodium bicarbonate solution added(mL) |
100.0 |
100.0 |
100.0
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| Amount of Sodium Bicarbonate added to sodium bicarbonate solution(g) |
1.6898 |
1.6809 |
1.6804
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| Mass of film after crosslinking (g) |
0.5519 |
... |
0
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- Observations/Notes for crosslinking glutaraldehyde films:
- When the PVOH MW 22,000+0.8wt%glutaraldehyde+PDMS film was first put into solution 1, the film was much more flimsy than any other film. The texture was more like glue than a rubber consistency as the other films
- Upon adding the PVOH MW 22,000+0.8wt%glutaraldehyde+PDMS film to the 1% HCl solution, the film completely dissolved
- Reviewing notes, it was observed that too little glutaraldehyde was added to each of the above mentioned films(only 8.4μL instead of 1mL).
- New glutaraldehyde films(1.PVOH MW 22,000, 2.PVOH MW 22,000+replacing 5% of PVOH with PDMS, 3.PVOH MW 22,000+ 100% CEC surfactant clay, 4. PVOH MW 22,000+NaMT) using 1mL glutaraldehyde will be prepared
- Although the clay films did not contain enough glutaraldehyde, the films did not dissolve and were able to complete crosslinking
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Project name
