User:Moira M. Esson/Notebook/CHEM-581/2013/02/27

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Objectives

  1. Perform pressure tests on all prepared hydrogels using a bent pipette.
  2. Run fluorescence on the samples obtained from the pressure tests.


Pressure tests

  • Pressure tests were performed on all hydrogels prepared with Rhodamine 6G added.
  • After the sheer pressure test conducted on 2013/02/22, it was determined that a bent pipette and an unmodified pipette would be used to conduct the pressure tests. Each hydrogel will have at least two pressure tests conducted with the hydrogel: one with a bent pipette and the other with an unmodified pipette.
  • All pressure tests were conducted following the general protocol described on 2013/02/22.


Table 1. Pressure testing information for hydrogels using a bent pipette

Sample Order PVOH vs. Clay Ratio PVOH Type Clay Selection Amount of Hydrogel Used (g)
1 90:10 146K 110% CEC NaMT w/ DMHXLBR 0.1084
2 90:10 130K NaMT 0.1044
3 50:50 146K 110% CEC NaMT 0.1092
4 90:10 130K 110% CEC Laponite 0.1050
5 50:50 130K NaMT 0.1050
6 90:10 130K Laponite 0.1015
7 50:50 146K 110% CEC Laponite 0.1080
8 50:50 130K Laponite 0.1036
9 90:10 130K 110% CEC NaMT 0.1011
10 50:50 130K 110% CEC Laponite 0.1036
11 90:10 130K 110% CEC NaMT 0.1011
12 90:10 146K Laponite 0.1026
13 50:50 130K 50% CEC NaMT Bu3HdP+ 0.1052
14 50:50 146K Laponite 0.1045
15 90:10 130K 50% CEC NaMT Bu3HdP+ 0.1145


 Figure 1. Image of bent pipette used for pressure testing


Bent pipette 2 27 13.jpg

 Figure 2. Fluorescence of all NaMT hydrogel ssmples


Fluorescence of Rhodamine 6G obtained from pressure tests of NaMT clay containing hydrogels using a bent pipette.png

 Figure 3. Fluorescence of all Lamponite hydrogel samples


Fluorescence of Rhodamine 6G collected after pressure testing(bent pipette) on hydrogels with Lamponite clay.png

 Figure 4. Fluorescence of all hydrogel samples


Bent pipette pressure testing.png

  • Correction: The x-axis should be labeled wavelength(nm). The image will be corrected.