User:Moira M. Esson/Notebook/CHEM-581/2013/03/22: Difference between revisions
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*A very small amount of PVA/clay was added to each vial and the vial was filled with safflower oil prior to the rapid freezing in order to achieve a true emulsion of microspheres in the organic safflower oil. This may prevent the formation of hydrogels. | *A very small amount of PVA/clay was added to each vial and the vial was filled with safflower oil prior to the rapid freezing in order to achieve a true emulsion of microspheres in the organic safflower oil. This may prevent the formation of hydrogels. | ||
<br> | <br> | ||
{| {{table}} | |||
| align="center" style="background:#f0f0f0;"|'''PVOH vs. Clay Ratio''' | |||
| align="center" style="background:#f0f0f0;"|'''Clay Selection''' | |||
| align="center" style="background:#f0f0f0;"|'''PVOH 146K Mass (g)''' | |||
| align="center" style="background:#f0f0f0;"|'''Actual Clay Mass (g)''' | |||
| align="center" style="background:#f0f0f0;"|'''H<sub>2</sub>O Added (mL)''' | |||
| align="center" style="background:#f0f0f0;"|'''Dye Concentration (μM)''' | |||
|- | |||
| 50:50||NaMT||0.02530||0.02530||20||35 | |||
|- | |||
| 50:50||Laponite||0.02590||0.02500||20||35 | |||
|- | |||
| 90:10||NaMT||0.04140||0.01110||20||35 | |||
|- | |||
| 90:10||Laponite||0.04470||0.01100||20||35 | |||
|- | |||
| 50:50||110% CEC Laponite||0.02550||0.02500||20||35 | |||
|- | |||
| 90:10||110% CEC Laponite||0.04230||0.01150||20||35 | |||
|- | |||
| 50:50||50% CEC NaMT||0.02540||0.02500||20||35 | |||
|- | |||
| 90:10||50% CEC NaMT||0.04010||0.01050||20||35 | |||
|} | |||
<br> | |||
==Notes== | |||
*Microspheres prepared with PVA 130,000 and PVA 146,000-186,000 will be prepared. | |||
Revision as of 18:05, 24 March 2013
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Objectives
Diffusion Testing
Preparation of Microspheres
Notes
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