User:Anh Do/Notebook/CHEM 481 Polymer/2017/02/10

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Task List Synthesize bigger batches of beads (10% and 25%) Separate the beads of the previous batches that were stuck together Synthesize beads Double the ingredient => make batches 3 times larger 10% clay content Clay solution: 2.5 g PVOH, 10 mL Bentonite solution, 30 mL HCl, 70 mL water Follow the same protocol Use 150 mL of ethyl acetate per 50 mL of Clay solution, for each 150 mL of ethyl acetate, put in 1.5 mL of glutaraldehyde twice Follow the same protocol for each 150 mL of ethyl acetate 25% clay content Clay solution: 2.5 g PVOH, 26 mL Bentonite solution, 30mL HCl, 54 mL water Follow the same protocol with the changes stated above Separate the beads made last week Sonicate them did not work Grind them seemed to work in terms of making them "powder" again However, beads still needed to be sieved and their adsorption capacity needed to be tested UV-Vis the dye Absorption increased tremendously with decreasing pH. Results of UV-Vis can be found here