User:Allison K. Alix/Notebook/CHEM-581/2012/09/07
|Experimental Chemistry|| Main project page|
Previous entry Next entry
Prepare thin films suitable for IR Spectroscopy Analysis, test solubility of PVOH thin films, perform cross-linking experiment on thin films
0.1g of PVOH (MW=22000 AND MW=100000) was dissolved in ~5-6mL of water and dried to be used in IR analysis.
In addition to this, the solubility of previously synthesized thin films were tested. 0.2g of the following films (MW=22000) were placed in water with stirring to observe if completely soluble: A. 0.5g PVOH B. 0.5gPVOH/H3PO4 C. 0.5g PVOH/H3PO4/Maleic Acid
0.2g of A-C polymers were cross linked by placing in the oven for ~90 minutes allowing for dehydration to occur. The solubility of these films were also tested and results were compared to that of the non-cross linked polymer samples.
Each of the non-cross linked samples were completely soluble in water. After cross linkage, however, there were differences in solubility. Both A and B completely dissolved, C did not dissolve.
This area is for any observations or conclusions that you would like to note.