User:Moira M. Esson/Notebook/CHEM-581/2013/04/10

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(Film Preparation)
(Film Preparation)
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| 50:50||50% CEC NaMT w/ Bu<sub>3</sub>HdP<sup>+</sup>||0.25280||0.2468||8.0
| 50:50||50% CEC NaMT w/ Bu<sub>3</sub>HdP<sup>+</sup>||0.25280||0.2468||8.0
|-
|-
-
| 90:10||50% CEC NaMT w/ Bu<sub>3</sub>HdP<sup>+</sup>||0.45770||0.05030||8.0
+
| 90:10||50% CEC NaMT||0.45770||0.05030||8.0
|-
|-
-
| 50:50||110% CEC NaMT w/ DMHXLBR||0.25020||0.25010||8.0
+
| 50:50||110% CEC NaMT||0.25020||0.25010||8.0
|-
|-
-
| 90:10||110% CEC NaMT w/ DMHXLBR||0.45020||0.05240||8.0
+
| 90:10||110% CEC NaMT||0.45020||0.05240||8.0
|}
|}
 +
<br>
<br>
*After being poured into the Teflon dish, these films were placed in a freezer at -20°C. These films will undergo the same, 3 day freeze-thaw method that both the microspheres and hydrogels were subjected to.
*After being poured into the Teflon dish, these films were placed in a freezer at -20°C. These films will undergo the same, 3 day freeze-thaw method that both the microspheres and hydrogels were subjected to.
*After they were placed in the freezer, frost appear to cover the films and they appeared to shrink in comparison to the hydrogels which expanded upon freezing
*After they were placed in the freezer, frost appear to cover the films and they appeared to shrink in comparison to the hydrogels which expanded upon freezing
<br>
<br>
 +
==Notes==
 +
* As expected, for many of the microsphere placed in the DSC instrument, oil highly affected the analysis of each microsphere sample prepared. Although it was anticipated that a large oil contamination peak would appear, almost all of the microsphere samples only contained two data sample points. DSC will be run again in order to test.
 +

Revision as of 10:33, 15 April 2013

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Objectives

  1. Make PVOH/clay films in order to run FTIR and X-ray.
  2. Run both modified and unmodified pressure testing on microspheres with dye added.
  3. Prepare DSC samples of all decanted and dried microspheres.


Film Preparation

  • PVA/clay films were prepared in order to run examine these films using FTIR and X-ray. These films will be compared to the hydrogel and microsphere samples in order to determine the difference between the prepared PVA/clay structures.
  • The films were prepared using the same PVA/clay ratio as that of the prepared microspheres and hydrogels.
  • The General Protocol for PVOH film preparation described on 2012/08/29 was used


Table 1. Film Preparation

PVOH vs. Clay Ratio Clay Selection PVOH 146K Mass (g) Actual Clay Mass (g) H2O Added (mL)
NONENONE0.49990NONE8.0
50:5050% CEC NaMT w/ Bu3HdP+0.252800.24688.0
90:1050% CEC NaMT0.457700.050308.0
50:50110% CEC NaMT0.250200.250108.0
90:10110% CEC NaMT0.450200.052408.0


  • After being poured into the Teflon dish, these films were placed in a freezer at -20°C. These films will undergo the same, 3 day freeze-thaw method that both the microspheres and hydrogels were subjected to.
  • After they were placed in the freezer, frost appear to cover the films and they appeared to shrink in comparison to the hydrogels which expanded upon freezing


Notes

  • As expected, for many of the microsphere placed in the DSC instrument, oil highly affected the analysis of each microsphere sample prepared. Although it was anticipated that a large oil contamination peak would appear, almost all of the microsphere samples only contained two data sample points. DSC will be run again in order to test.




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