User:Karlena L. Brown/Notebook/PVOH Research/2013/02/15: Difference between revisions
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# In 50mL beaker, dissolve ~ 1.0g total of PVOH 146K or PVOH 130K along with clay additive selected in 25mL hot deionized H<sub>2</sub>O | # In 50mL beaker, dissolve ~ 1.0g total of PVOH 146K or PVOH 130K along with clay additive selected in 25mL hot deionized H<sub>2</sub>O | ||
# Place a stir bar in the 50mL beaker and then heat solution at 100°C for ~ 12-15 minutes until complete dissolution of PVOH / clay sample | # Place a stir bar in the 50mL beaker and then heat solution at 100°C for ~ 12-15 minutes until complete dissolution of PVOH / clay sample | ||
# Cool solution for ~ 5 minutes, then remove the stir bar, and then add 25mL of mineral oil to the sample | # Cool solution for ~ 5 minutes, then remove the stir bar, and add PVOH clay sample to a blender | ||
# | # Afterwards, then add 25mL of mineral oil to the sample in the blender | ||
# Blend sample solution prepared in blender for ~ 7 minutes on high to form a more homogeneous mixture / emulsion (creating a suspension of microspheres) | |||
# After 7 minutes, | # After 7 minutes, quicklya dd some Rhodamine 6G dye to the solution based upon the ratio selection ''' (90:10 vs. 50:50)''' | ||
# After the addition of dye, allow the solution to go through freeze / thaw crosslinking process for ~ 2-3 days | # After the addition of the dye, allow the solution to go through freeze / thaw crosslinking process for ~ 2-3 days | ||
# Place microsphere solution in a freezer at -20°C for 24 hours and then remove and | # Place microsphere solution in a freezer at -20°C for 24 hours and then remove and allow to solution to thaw for 24 hours | ||
Revision as of 23:19, 24 February 2013
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OBJECTIVES
New Method of PVOH Clay Microsphere Preparation
Reference: http://www.sciencedirect.com/science/article/pii/S0168365998000893 PVOH 146K Prepared Samples & Dye Preparations1μM Rhodamine 6G Dye Concentration M1V1 = M2V2 1μM (RG6)x 25mL = (92μM)V2 V2 = 271.74μL 1μM Rhodamine 6G Dye Concentration M1V1 = M2V2 1μM (RG6)x 25mL = (165μM)V2 V2 = 152.00μL
Notes
# 50:50 PVOH 130K 110% CEC NaMT w/ DMHXLBR # 90:10 PVOH 130K 110% CEC Laponite w/ DMHXLBR # 50:50 PVOH 130K 110% CEC Laponite w/ DMHXLBR # 90:10 PVOH 130K 110% CEC NaMT w/ DMHXLBR
# Hydrogel 50:50 PVOH 146K 50% CEC NaMT w/ Bu3HdP+ # Hydrogel 90:10 PVOH 146K 50% CEC NaMT w/ Bu3HdP+ # Hydrogel 50:50 PVOH 146K NaMT # Hydrogel 90:10 PVOH 146K NaMT # Hydrogel control PVOH 146K # Hydrogel 90:10 PVOH 146K Laponite
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