Difference between revisions of "User:Moira M. Esson/Notebook/CHEM-581/2013/04/10"

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(Film Preparation)
(Film Preparation)
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Table 1. Film Preparation
 
Table 1. Film Preparation
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{| {{table}}
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| align="center" style="background:#f0f0f0;"|'''PVOH vs. Clay Ratio'''
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| align="center" style="background:#f0f0f0;"|'''Clay Selection'''
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| align="center" style="background:#f0f0f0;"|'''PVOH 146K Mass (g)'''
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| align="center" style="background:#f0f0f0;"|'''Actual Clay Mass (g)'''
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| align="center" style="background:#f0f0f0;"|'''H<sub>2</sub>O Added (mL)'''
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|-
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| NONE||NONE||0.49990||NONE||8.0
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|-
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| 50:50||50% CEC NaMT w/ Bu<sub>3</sub>HdP<sup>+</sup>||0.25280||0.2468||8.0
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|-
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| 90:10||50% CEC NaMT w/ Bu<sub>3</sub>HdP<sup>+</sup>||0.45770||0.05030||8.0
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|-
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| 50:50||110% CEC NaMT w/ DMHXLBR||0.25020||0.25010||8.0
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|-
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| 90:10||110% CEC NaMT w/ DMHXLBR||0.45020||0.05240||8.0
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|}
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*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.
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*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
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Revision as of 06:29, 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)
NONE NONE 0.49990 NONE 8.0
50:50 50% CEC NaMT w/ Bu3HdP+ 0.25280 0.2468 8.0
90:10 50% CEC NaMT w/ Bu3HdP+ 0.45770 0.05030 8.0
50:50 110% CEC NaMT w/ DMHXLBR 0.25020 0.25010 8.0
90:10 110% CEC NaMT w/ DMHXLBR 0.45020 0.05240 8.0


  • 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