User:Eleni N. Kalivas/Notebook/CHEM-571/2014/11/05

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Objective weigh out PVAC ribbons and soak in 20 ppm Malachite Green and UV-vis in 10 min increments Prepare dried PVAC ribbons for pXRD and DSC Begin new bead synthesis for PVAC Protocol The Malachite Green solution was made and after UV-vis was found to be at a concentration of 20.2ppm Dilution of .5mL of 20ppm into 5mL for a total concentration of 2ppm total to be measured with UV-vis 1.4163g of PVAC ribbons were placed into 10 mL of 20ppm Malachite Green Solution DSC preparation Tzero Pan weight: 0.04192g Tzero Pan and PVAC ribbons weight: 0.04494g Tzero Pan, PVAC ribbons and Lid weight: 0.05539g Total weight of PVAC ribbons in pan: 3.02mg pXRD Preparation: Take dried PVAC ribbons and condense them onto a pXRD plate New Bead Synthesis Weigh out 0.5020g of PVA and 0.0565g of Montmorillonite clay into 6mL of 10% HCl stir over heat until everything is dissolved Add 20mL Ethyl Acetate and 0.75mL of glutaraldehyde to a beaker with a stir bar and spin the solution Start Adding the PVAC solution drop wise to the ethyl acetate and glutaraldehyde After about 3 minutes add another 0.75mL of glutaraldehyde to the solution Once the finished adding the PVAC solution, add 25mL of sodium bicarbonate Centrifuge the sample at 3000rpm at 4 degrees celsius for one minute Note: After centrifugation there seemed to be a suspension of two different levels of bead separation, so the two were extracted separately and stored in different vials in water pXRD Madeleine 2 James 3 Tami 4 Eleni 5 DSC Madeleine 22 James 23 Tami 24 Eleni 25 Data UV-Vis of PVAC Ribbon absorptions of Malachite Green