User:Moira M. Esson/Notebook/CHEM-581/2013/04/03: Difference between revisions
(6 intermediate revisions by the same user not shown) | |||
Line 17: | Line 17: | ||
<br> | <br> | ||
==DSC== | ==DSC== | ||
*Please refer to Karlena Brown's laboratory notebook [[User: | *Please refer to Karlena Brown's laboratory notebook [[User:Karlena_L._Brown/Notebook/PVOH_Research/2013/04/03|2013/04/03]] for any information concerning DSC sample preparation. | ||
* For many of the DSC samples run, the microsphere samples analyzed were not completely dry. As such, the DSC peak analysis will be affected by the presence of safflower oil encompassed in the sample | |||
* X-ray diffraction will be run on all prepared microsphere samples in order to determine whether clay has agglomerated separately from the PVOH | |||
<br> | |||
'''DSC samples''': | |||
<br> | |||
{| {{table}} | |||
| align="center" style="background:#f0f0f0;"|'''Sample Name''' | |||
| align="center" style="background:#f0f0f0;"|'''Sample Mass (mg)''' | |||
| align="center" style="background:#f0f0f0;"|'''Pan / Lid Mass (mg)''' | |||
|- | |||
| 50:50 PVOH 130K NaMT||3.12||50.01 | |||
|- | |||
| 90:10 PVOH 130K 110% CEC NaMT w/ DMHXLBR||2.29||50.17 | |||
|- | |||
| 90:10 PVOH 130K Laponite||2.59||50.12 | |||
|- | |||
| 90:10 PVOH 130K 110% CEC Laponite w/ DMHXLBR||2.27||50.28 | |||
|- | |||
| 90:10 PVOH 146K 110% CEC NaMT w/ DMHXLBR||2.65||50.11 | |||
|- | |||
| 50:50 PVOH 146K 110% CEC NaMT w/ DMHXLBR||2.50||50.17 | |||
|} | |||
==Diffusion Testing== | ==Diffusion Testing== | ||
Line 60: | Line 82: | ||
<br> | <br> | ||
[[Image:50 PVA 146 NaMT micros diff.png]] | [[Image:50 PVA 146 NaMT micros diff.png]] | ||
*Fluorescence intensity maximum is | *Fluorescence intensity maximum is 16.350 | ||
<br> | <br> | ||
Figure 5. Diffusion Testing of Rhodamine 6G in microspheres prepared with a 50:50 ratio PVA 146,000-186,000: 50% CEC NaMT | Figure 5. Diffusion Testing of Rhodamine 6G in microspheres prepared with a 50:50 ratio PVA 146,000-186,000: 50% CEC NaMT | ||
Line 76: | Line 98: | ||
==Notes== | ==Notes== | ||
* | * The tested "microspheres" more closely resemble smaller, more circular, more flexible hydrogels. Other microsphere samples were prepared and may more closely resemble microspheres. | ||
* The microsphere prepared with a 50:50 ratio PVA 146,000-186,000: 110% CEC Laponite caused the most diffusion of dye. All microspheres will be used for pressure testing, however, because not all dye leaked out. | * The microsphere prepared with a 50:50 ratio PVA 146,000-186,000: 110% CEC Laponite caused the most diffusion of dye. All microspheres will be used for pressure testing, however, because not all dye leaked out. | ||
* All curves will be integrated in order to determine the concentration of dye leaked. | |||
Revision as of 20:31, 9 April 2013
Project name | <html><img src="/images/9/94/Report.png" border="0" /></html> Main project page <html><img src="/images/c/c3/Resultset_previous.png" border="0" /></html>Previous entry<html> </html>Next entry<html><img src="/images/5/5c/Resultset_next.png" border="0" /></html> | |||||||||||||||||||||
Objectives
DecantingThe general protocol described on 2013/03/01 was followed.
DSC
Diffusion TestingA new general protocol for the preparation of was used for the diffusion testing of the prepared microspheres. It was determined that the previous protocol did not allow for a quantitative understanding of the amount of dye diffused from the samples.
Notes
|