User:Moira M. Esson/Notebook/CHEM-581/2013/02/22: Difference between revisions
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| align="center" style="background:#f0f0f0;"|'''Volume of safflower oil(mL)''' | | align="center" style="background:#f0f0f0;"|'''Volume of safflower oil(mL)''' | ||
|- | |- | ||
| 90:10 PVA:50% exchanged NaMT||||||25||50 | | 90:10 PVA:50% exchanged NaMT||0.90020||0.10330||25||50 | ||
|- | |- | ||
| 50:50 PVA:50% exchanged NaMT||||||25||50 | | 50:50 PVA:50% exchanged NaMT||0.50620||0.50090||25||50 | ||
|- | |- | ||
| 90:10 PVA:NaMT||||||25||50 | | 90:10 PVA:NaMT||0.90160||0.10360||25||50 | ||
|- | |- | ||
| 50:50 PVA:NaMT||||||30||50 | | 50:50 PVA:NaMT||0.50250||0.49980||30||50 | ||
|- | |- | ||
| 50:50 PVA:110% Lamponite||||||35||50 | | 50:50 PVA:110% Lamponite||0.50960||0.50460||35||50 | ||
|} | |} | ||
<br> | <br> | ||
Observations: | Observations: | ||
*The samples containing NaMT seemed to have larger spheres in the emulsion. | *The samples containing NaMT seemed to have larger spheres in the emulsion. | ||
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<br> | <br> | ||
==Organic layer removal== | |||
*The three microsphere samples that were completely thawed were placed in a freezer at -20°C for 4 hours. This was to induce the freezing of the aqueous, PVA/clay layer. The organic, mineral oil layer, however, remained unfrozen. | |||
*The mineral oil layer was poured into the appropriate waste container. | |||
*The microspheres were then rinsed with 10mL of hexanes three times to remove any excess mineral oil present in the sample. | |||
*The microspheres were left in the fume hood over night for the complete evaporation of the hexanes from the sample. | |||
Revision as of 18:21, 24 March 2013
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Objectives
DSC
Parameters for DSC samples:
Note:
Microsphere preparationNotes:
PVA MW 146,000-186,000 Microspheres
Observations:
Organic layer removal
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