User:Karlena L. Brown/Notebook/PVOH Research/2013/04/10

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(Autocreate 2013/04/10 Entry for User:Karlena_L._Brown/Notebook/PVOH_Research)
(PVOH Film Preparations)
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==PVOH Film Preparations==
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==OBJECTIVES==
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'''Prepared PVOH films in water:'''
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* In 10mL beaker, weigh out ~ 0.5 grams PVOH (MW 130,000)
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'''(Actual Mass = 0.4934g)'''
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* Then, using a graduated cylinder add ~ 3 mL H<sub>2</sub>O to the beaker
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* In another 10mL beaker, weigh out ~ 1.0 gram PVOH (MW 130,000)
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'''(Actual Mass = 0.9965g)'''
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* Then, using a graduated cylinder add ~ 5 mL H<sub>2</sub>O to the beaker
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'''Standard PVOH Film Protocol:'''
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==DSC Analysis: Mixed Microspheres==
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* After adding and combining PVOH (MW 130,000) in small beakers with H<sub>2</sub>O, add stir bars and prepare to stir solution.
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'''DSC preparation and protocol involving instrumentation and usage can be found on 9/17/12 entry.'''
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* On hot plate, stir and heat both beaker solutions at 70-80°C for ~ 12 min or until PVOH dissolves.
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* Once PVOH solids thoroughly dissolve in solution, pour each solution in a Teflon dish to sit, cool, and dry in a fume hood for ~ 1 day.  
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'''Notes:'''
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{| {{table}}
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* An additional 2-3 mL H<sub>2</sub>O was added to each solution to aid the dissolving of the PVOH
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| align="center" style="background:#f0f0f0;"|'''Sample Name'''
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* Heat was reduced when solutions began to boil too rapidly
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| align="center" style="background:#f0f0f0;"|'''Sample Mass (mg)'''
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* While transferring solutions to Teflon dishes, loss of sample within the small beakers (sample loss = incomplete sample transfer)
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| align="center" style="background:#f0f0f0;"|'''Pan / Lid Mass (mg)'''
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|-
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| PVOH 130K||3.01||50.15
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|-
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| PVOH 146K||3.14||49.98
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|-
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| 50:50 PVOH 130K NaMT||3.03||49.87
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|-
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| 50:50 PVOH 130K Laponite||2.86||49.94
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|-
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| 90:10 PVOH 130K 50% CEC NaMT w/ Bu<sub>3</sub>HdP<sup>+</sup>||2.89||50.30
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|-
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| 50:50 PVOH 130K 110% CEC NaMT w/ DMHXLBR||3.13||50.55
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|-
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| 50:50 PVOH 130K 110% CEC Laponite w/ DMHXLBR||3.17||49.64
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|-
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| 90:10 PVOH 130K 110% CEC Laponite w/ DMHXLBR||2.89||49.48
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|-
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| 50:50 PVOH 130K 50% CEC NaMT w/ Bu<sub>3</sub>HdP<sup>+</sup>||3.04||49.95
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|}
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* Specific DSC parameters and protocols set to analyze dry clay samples included the following:
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    # Equilibrate sample at ~ -40°C
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    # Ramp sample temperature up from 20-240°C
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    # Ramp sample temperature down from 20-(-40°C)
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    # Repeat segment #2 again
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==Bent Pipette: Microsphere Pressure Samples Tested==
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'''RECALL HYDROGEL PRESSURE TESTING PROTOCOL ON 2/20/13 & FLUORESCENCE ANALYSIS PROCEDURES ON 2/13/13'''
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{| {{table}}
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| align="center" style="background:#f0f0f0;"|'''Sample Order'''
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| align="center" style="background:#f0f0f0;"|'''PVOH vs. Clay Ratio'''
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| align="center" style="background:#f0f0f0;"|'''PVOH Type'''
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| align="center" style="background:#f0f0f0;"|'''Clay Selection'''
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| align="center" style="background:#f0f0f0;"|'''Amount of Hydrogel Used (g)'''
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|-
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| 1||50:50||146K||110% CEC Laponite w/ DMHXLBR||0.1081
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|-
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| 2||50:50||146K||NaMT||0.1221
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|-
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| 3||50:50||146K||50% CEC NaMT w/ Bu<sub>3</sub>HdP<sup>+</sup>||0.1146
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|-
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| 4||90:10||146K||50% CEC NaMT w/ Bu<sub>3</sub>HdP<sup>+</sup>||0.1005
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|-
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| 5||90:10||146K||NaMT||0.1001
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|-
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| 6||90:10||146K||110% CEC Laponite w/ DMHXLBR||0.0998
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|}
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==Notes==

Revision as of 01:58, 15 April 2013

PVOH Research Main project page
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OBJECTIVES

DSC Analysis: Mixed Microspheres

DSC preparation and protocol involving instrumentation and usage can be found on 9/17/12 entry.

Sample Name Sample Mass (mg) Pan / Lid Mass (mg)
PVOH 130K3.0150.15
PVOH 146K3.1449.98
50:50 PVOH 130K NaMT3.0349.87
50:50 PVOH 130K Laponite2.8649.94
90:10 PVOH 130K 50% CEC NaMT w/ Bu3HdP+2.8950.30
50:50 PVOH 130K 110% CEC NaMT w/ DMHXLBR3.1350.55
50:50 PVOH 130K 110% CEC Laponite w/ DMHXLBR3.1749.64
90:10 PVOH 130K 110% CEC Laponite w/ DMHXLBR2.8949.48
50:50 PVOH 130K 50% CEC NaMT w/ Bu3HdP+3.0449.95
  • Specific DSC parameters and protocols set to analyze dry clay samples included the following:
   # 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

Bent Pipette: Microsphere Pressure Samples Tested

RECALL HYDROGEL PRESSURE TESTING PROTOCOL ON 2/20/13 & FLUORESCENCE ANALYSIS PROCEDURES ON 2/13/13

Sample Order PVOH vs. Clay Ratio PVOH Type Clay Selection Amount of Hydrogel Used (g)
150:50146K110% CEC Laponite w/ DMHXLBR0.1081
250:50146KNaMT0.1221
350:50146K50% CEC NaMT w/ Bu3HdP+0.1146
490:10146K50% CEC NaMT w/ Bu3HdP+0.1005
590:10146KNaMT0.1001
690:10146K110% CEC Laponite w/ DMHXLBR0.0998

Notes


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