User:Moira M. Esson/Notebook/CHEM-581/2013/04/10: Difference between revisions
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| align="center" style="background:#f0f0f0;"|'''PVOH vs. Clay Ratio''' | | align="center" style="background:#f0f0f0;"|'''PVOH vs. Clay Ratio''' | ||
| align="center" style="background:#f0f0f0;"|'''Clay Selection''' | | align="center" style="background:#f0f0f0;"|'''Clay Selection''' | ||
| align="center" style="background:#f0f0f0;"|'''PVOH | | align="center" style="background:#f0f0f0;"|'''PVOH 130K Mass (g)''' | ||
| align="center" style="background:#f0f0f0;"|'''Actual Clay 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;"|'''H<sub>2</sub>O Added (mL)''' | ||
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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 | *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> | ||
==Pressure Testing== | ==Pressure Testing== | ||
*The unmodified pipette pressure testing obtained on [[User:Moira_M._Esson/Notebook/CHEM-581/2013/04/05|2013/04/05]] | *The unmodified pipette pressure testing samples of Rhodamine 6G obtained on [[User:Moira_M._Esson/Notebook/CHEM-581/2013/04/05|2013/04/05]] were run on the fluorimeter. | ||
*The specific parameters used for analysis of the fluorescence of Rhodamine 6G released from clay incorporated microspheres included: | |||
# Excitation: 480nm | |||
# Emission Range: 500-650nm | |||
# Excitation Slit Width: 10 | |||
# Emission Slit Width: 10 | |||
# Scan Speed: 1200 | |||
<br> | |||
Figure 1. Fluorescence of Rhodamine 6G in water collected from pressure testing of PVA/clay microspheres using an unmodified pipette | |||
<br> | |||
[[Image:Pressure testing of micros146K unmodpipette.png]] | |||
<br> | |||
*Only the 90:10 PVA146:110% LP produced a clean peak. | |||
*50:50PVA146:110%LP produced the highest fluorescence intensity value. | |||
<br> | |||
Figure 2. Fluorescence of Rhodamine 6G in water collected from pressure testing of PVA/clay microspheres using a modified pipette | |||
<br> | <br> | ||
[[Image:Pressure testingmicros146modifpipette.png]] | |||
<br> | |||
*50:50 PVA146K:110%LP produced the highest fluorescence intensity value | |||
'''Modified Pipette Pressure Testing''' | |||
<br> | |||
*The general protocol for modified pipette pressure testing on hydrogels described on [[User:Moira_M._Esson/Notebook/CHEM-581/2013*The specific parameters used for analysis of the fluorescence of Rhodamine 6G released from clay incorporated microspheres included: | |||
# Excitation: 480nm | |||
# Emission Range: 500-650nm | |||
# Excitation Slit Width: 10 | |||
# Emission Slit Width: 10 | |||
# Scan Speed: 1200 | |||
<br> | |||
Table 2. Samples used for Modified pressure testing | |||
<br> | |||
{| {{table}} | |||
| align="center" style="background:#f0f0f0;"|'''Sample Order''' | |||
| align="center" style="background:#f0f0f0;"|'''PVOH vs. Clay Ratio''' | |||
| align="center" style="background:#f0f0f0;"|'''PVOH Type''' | |||
| align="center" style="background:#f0f0f0;"|'''Clay Selection''' | |||
| align="center" style="background:#f0f0f0;"|'''Amount of Hydrogel Used (g)''' | |||
|- | |||
| 1||50:50||146K||110% CEC Laponite w/ DMHXLBR||0.1081 | |||
|- | |||
| 2||50:50||146K||NaMT||0.1221 | |||
|- | |||
| 3||50:50||146K||50% CEC NaMT w/ Bu<sub>3</sub>HdP<sup>+</sup>||0.1146 | |||
|- | |||
| 4||90:10||146K||50% CEC NaMT w/ Bu<sub>3</sub>HdP<sup>+</sup>||0.1005 | |||
|- | |||
| 5||90:10||146K||NaMT||0.1001 | |||
|- | |||
| 6||90:10||146K||110% CEC Laponite w/ DMHXLBR||0.0998 | |||
|} | |||
<br> | |||
==DSC Analysis== | ==DSC Analysis== | ||
*The general protocol for DSC analysis was followed. | *The general protocol for DSC analysis was followed. | ||
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# Repeat segment #2 again | # Repeat segment #2 again | ||
Table | Table 3. DSC samples information | ||
<br> | <br> | ||
{| {{table}} | {| {{table}} |
Revision as of 07:15, 19 April 2013
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Objectives
Film Preparation
Pressure Testing
# Excitation: 480nm # Emission Range: 500-650nm # Excitation Slit Width: 10 # Emission Slit Width: 10 # Scan Speed: 1200
Figure 2. Fluorescence of Rhodamine 6G in water collected from pressure testing of PVA/clay microspheres using a modified pipette
Modified Pipette Pressure Testing
# Excitation: 480nm # Emission Range: 500-650nm # Excitation Slit Width: 10 # Emission Slit Width: 10 # Scan Speed: 1200
DSC Analysis
# Equilibrate sample at ~ -40°C # Ramp sample temperature up from 20-240°C # Ramp sample temperature down from 20-(-40°C) # Repeat segment #2 again Table 3. DSC samples information
Notes
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