User:Elizabeth Ghias/Notebook/Experimental Chemistry/2012/11/19 - Revision history

Elizabeth Ghias at 20:12, 19 November 2012

2012-11-19T20:12:34Z

←Older revision		Revision as of 20:12, 19 November 2012
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	# One of the PVOH/glutaraldehyde films that had been crosslinked on 11/16 was removed from water.		# One of the PVOH/glutaraldehyde films that had been crosslinked on 11/16 was removed from water.
	# The mass of the film was measured.		# The mass of the film was measured.
-	# The film was dried in an oven set to 90°C for about 30 minutes.	+	# The film was dried in an oven set to 90°C for about 30 minutes and then was left to air dry for 1 week.
-	~~# The~~	+
		+

	<u>Porphyrin Film Preparation</u>		<u>Porphyrin Film Preparation</u>

Elizabeth Ghias at 20:07, 19 November 2012

2012-11-19T20:07:53Z

←Older revision		Revision as of 20:07, 19 November 2012
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	<u>Swelling</u>		<u>Swelling</u>

-	# ~~Determine the mass~~ of the PVOH/glutaraldehyde ~~film (has not~~ been crosslinked).	+	# One of the PVOH/glutaraldehyde films that had been crosslinked on 11/16 was removed from water.
-	# ~~Place~~ the film ~~in a 250 mL beaker filled with 30 mL water~~.	+	# The mass of the film was measured.
-	# ~~Cover beaker with parafilm to prevent evaporation.~~	+	# The film was dried in an oven set to 90°C for about 30 minutes.
-	~~# Allow~~ film to ~~soak~~ for ~~____________~~	+	# The
-	# ~~Measure the volume of water remaining and the mass of the film.~~	+
-		+

	<u>Porphyrin Film Preparation</u>		<u>Porphyrin Film Preparation</u>
		+
		+	* 3 porphyrin films were prepared. Two of the films contained the HCl seen in step 2. The HCl portion of step 2 was omitted.

	# 1 g of PVOH was dissolved in 7 mL H<sub>2</sub>O on a heated hot plate.		# 1 g of PVOH was dissolved in 7 mL H<sub>2</sub>O on a heated hot plate.

Elizabeth Ghias at 18:27, 19 November 2012

2012-11-19T18:27:02Z

←Older revision		Revision as of 18:27, 19 November 2012
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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==
-	~~This area is for any observations or conclusions that you would like to note.~~	+
		+	* After break, do Na+ and Cu2+ absorption with crosslinked PVOH/glutaraldehyde films,

Klare Lazor: /* Description */

2012-11-19T17:54:09Z

Description

←Older revision		Revision as of 17:54, 19 November 2012
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	==Description==		==Description==
		+	Crosslinking Glutaraldehyde Films
		+	#Allow the PVOH film containing glutaraldehyde to dry completely.
		+	#Prepare a solution of 100 mL H2O, 2 mL concentrated H2SO4, and 20 g Na2SO4 in a 150 mL beaker. (solution is referred to as glutaraldehyde fixant)
		+	#Place stir bar in beaker and a Buchner funnel top (cap) over the stir bar
		+	#Heat solution to 70°C (temperature on hotplate should be about 160)
		+	#Place film in solution for one hour.
		+	#Prepare 100 mL of a 1% HCl solution in a 150 mL beaker. Place a stir bar and an inverted buchner funnel into beaker.
		+	#Heat HCl solution to 70°C
		+	#Remove film from glutaraldehyde fixant and rinse with distilled water.
		+	#Place film into HCl solution for 30 minutes.
		+	#Prepare 0.2 M sodium bicarbonate solution. (1.68 g in 100 mL)
		+	#After 30 minutes, remove the film from the HCl solution and place into the sodium bicarbonate solution (at room temperature) for about 15 minutes.
		+	#Use tweezers to remove the film from the sodium bicarbonate solution.
		+	#Rinse film with deionized water and dry film on paper towel.

	==Data==		==Data==

Elizabeth Ghias: Autocreate 2012/11/19 Entry for User:Elizabeth_Ghias/Notebook/Experimental_Chemistry

2012-11-19T17:24:42Z

Autocreate 2012/11/19 Entry for User:Elizabeth_Ghias/Notebook/Experimental_Chemistry

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{|{{table}} width="800"
|-
|style="background-color: #EEE"|[[Image:BDLlogo_notext_lr.png|128px]]<span style="font-size:22px;"> Experimental Chemistry</span>
|style="background-color: #F2F2F2" align="center"|<html><img src="/images/9/94/Report.png" border="0" /></html> [[{{#sub:{{FULLPAGENAME}}|0|-11}}|Main project page]]<br />{{#if:{{#lnpreventry:{{FULLPAGENAME}}}}|<html><img src="/images/c/c3/Resultset_previous.png" border="0" /></html>[[{{#lnpreventry:{{FULLPAGENAME}}}}{{!}}Previous entry]]<html>      </html>}}{{#if:{{#lnnextentry:{{FULLPAGENAME}}}}|[[{{#lnnextentry:{{FULLPAGENAME}}}}{{!}}Next entry]]<html><img src="/images/5/5c/Resultset_next.png" border="0" /></html>}}
|-
| colspan="2"|


==Objective==

==Description==

==Data==
* Add data and results here...

==Notes==
This area is for any observations or conclusions that you would like to note.

Use categories like tags. Change the "Course" category to the one corresponding to your course. The "Miscellaneous" tag can be used for particular experiments, as instructed by your professor. Please be sure to change or delete this tag as required so that the categories remain well organized.

[[Category:Course]]
[[Category:Miscellaneous]]


|}

__NOTOC__