User:Jacob Esenther/Notebook/581/2014/09/17

Biomaterials Design Lab

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Objective Finish compiling data from the DSC UV-Vis of the MG PVA films Worked on ionic liquid exchange Started XRD of the MG PVA-Clay Films finished exfoliated clay film Description Data collection from the DSC was completed a table of values and graphs of the temperature vs. heat flow can be seen below UV-Vis of the MG PVA films the data previously collected from the absorption of the PVA only films seemed off when compared to values with the class. New films were produced, allowed to absorb concentrations of Malachite Green, and UV-Vis was run on the different concentrations. Information on the new experiment can be viewed here. Ionic Liquid Exchange Started the XRD of the MG PVA-Clay Films Dr. Hartings produced the clay control in slot 1 Madeleine's group produced the 8ppm sample in slot 2 My group produced the 2ppm sample in slot 3 My group produced the PVA film control in slot 4 Eleni's group produced the 80ppm sample in slot 5 Tami's group produced the 200ppm sample in slot 6 Finished exfoliated clay film The procedure followed the standard film synthesis. This may be viewed here. Data PVA Conc. (ppm) ' Energy (J/g) H₂0 (mg) Glass Transition (⁰C) Water Evaporation Peak (⁰C) 2 928.4 1.3239 69.11 and 79.8 108.58 8 1001 1.9796 68.77 99.31 80 1340 2.9384 68.338 105.91 200 819.4 1.0803 68.63 128.77 Control 582.9 0.95407 68.566 125.61 PVA-Clay 2 1303 1.8931 68.716 100.97 8 883.8 1.4585 68.644 99.59 80 861.3 2.2633 68.866 102.05, 106.55, and 128.44 200 N/A N/A N/A N/A Control 671.2 0.90296 69.164 116.15 and 105.16 Notes Exfoliated Clay Film A beaker of heating Sodium Sulfate was spilled in the hood and shorted the electricity. The sodium sulfate solution was kept at room temperature with no stirring When transferred to HCl solution, the temperature fluctuated between 75°C and 90°C with stirring Sodium bicarbonate solution was not stirred