User:Elizabeth Ghias/Notebook/Experimental Chemistry/2012/11/19: Difference between revisions
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==Objective== | ==Objective== | ||
To determine the swelling of the PVOH/glutaraldehyde films, prepare another PVOH/glutaraldehyde/porphyrin/HCl film, conduct DSC, conduct FTIR, | |||
==Description== | ==Description== | ||
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#Use tweezers to remove the film from the sodium bicarbonate solution. | #Use tweezers to remove the film from the sodium bicarbonate solution. | ||
#Rinse film with deionized water and dry film on paper towel. | #Rinse film with deionized water and dry film on paper towel. | ||
<u>Swelling</u> | |||
# Determine the mass of the PVOH/glutaraldehyde film (has not been crosslinked). | |||
# Place the film in a 250 mL beaker filled with 30 mL water. | |||
# Cover beaker with parafilm to prevent evaporation. | |||
# Allow film to soak for ____________ | |||
# Measure the volume of water remaining and the mass of the film. | |||
<u>Porphyrin Film Preparation</u> | |||
# 1 g of PVOH was dissolved in 7 mL H<sub>2</sub>O on a heated hot plate. | |||
# Once the PVOH dissolved, 1 mL of glutaraldehyde, 1 mL of porphyrin, and 2-3 drops of HCl was added. | |||
# The gel was stirred for 3 minutes and then was poured into a plastic dish and was allowed to evaporate for 1 week. | |||
<u>DCS</u> | |||
<u>FTIR</u> | |||
==Data== | ==Data== | ||
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==Notes== | ==Notes== | ||
* After break, do Na+ and Cu2+ absorption with crosslinked PVOH/glutaraldehyde films, | |||
Revision as of 11:27, 19 November 2012
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ObjectiveTo determine the swelling of the PVOH/glutaraldehyde films, prepare another PVOH/glutaraldehyde/porphyrin/HCl film, conduct DSC, conduct FTIR,
DescriptionCrosslinking Glutaraldehyde Films
Swelling
DCS
Data
Notes
|