User:Melissa Novy/Notebook/CHEM-581/2012/11/16 - Revision history

Melissa Novy: /* Objectives */

Melissa Novy — Mon, 26 Nov 2012 04:48:20 GMT

Objectives

←Older revision		Revision as of 04:48, 26 November 2012
Line 18:		Line 18:
	* Soak PVOH (MW 22000) in HPLC grade H<sub>2</sub>O to determine change in mass due to swelling.		* Soak PVOH (MW 22000) in HPLC grade H<sub>2</sub>O to determine change in mass due to swelling.
	* Soak PVOH (MW 22000), 1 mL glutaraldehyde, 1 mL porphyrin in 2 wt% H<sub>2</sub>SO<sub>4</sub> until the film turns green. Then soak the film in salt solution and take UV-vis of the film.		* Soak PVOH (MW 22000), 1 mL glutaraldehyde, 1 mL porphyrin in 2 wt% H<sub>2</sub>SO<sub>4</sub> until the film turns green. Then soak the film in salt solution and take UV-vis of the film.
		+
		+	==PVOH (MW 22000) Film Swelling==
		+	* Change in mass of PVOH (MW 22000) films after soaking in 10 mL HPLC grade H<sub>2</sub>O for three days.
		+	{\| {{table}}
		+	\| align="center" style="background:#f0f0f0;"\|'''Crosslinked Film'''
		+	\| align="center" style="background:#f0f0f0;"\|'''Date Prepared'''
		+	\| align="center" style="background:#f0f0f0;"\|'''Initial Mass [g]'''
		+	\| align="center" style="background:#f0f0f0;"\|'''Final Mass [g]'''
		+	\| align="center" style="background:#f0f0f0;"\|'''ΔMass [g]'''
		+	\| align="center" style="background:#f0f0f0;"\|'''% Change []'''
		+	\|-
		+	\| PVOH(22K),0.5mLGA,NaMT\|\|11/2/2012\|\|0.0241\|\|0.0871\|\|0.063\|\|261.4107884
		+	\|-
		+	\| PVOH(22K),0.5mLGA,1mLPP\|\|10/26/2012\|\|0.0398\|\|0.1132\|\|0.0734\|\|184.4221106
		+	\|-
		+	\| PVOH(22k),0.5mLGA,0.99mLPP\|\|10/19/2012\|\|0.0312\|\|0.0872\|\|0.056\|\|179.4871795
		+	\|-
		+	\| PVOH(22k),8.24µLGA,50%CECMT,CuSO4exch.\|\|10/17/2012\|\|0.0113\|\|0.0242\|\|0.0129\|\|114.159292
		+	\|-
		+	\| PVOH(22k),8.24µLGA,100%CECMT,CuSO4exch.\|\|10/17/2012\|\|0.0048\|\|0.0095\|\|0.0047\|\|97.91666667
		+	\|-
		+	\| PVOH(22k),1mLGA,50%CECMT\|\|10/4/2012\|\|0.0138\|\|0.0294\|\|0.0156\|\|113.0434783
		+	\|-
		+	\| PVOH(22k),1mLGA,100%CECMT\|\|10/4/2012\|\|0.0144\|\|0.0307\|\|0.0163\|\|113.1944444
		+	\|-
		+	\| PVOH(22k),1mLGA,1mLPP,less colored\|\|10/24/2012\|\|0.014\|\|0.0241\|\|0.0101\|\|72.14285714
		+	\|-
		+	\| PVOH(22k),1mLGA,0.1gNaMT,CuSO4exch.\|\|10/17/2012\|\|0.0102\|\|0.0222\|\|0.012\|\|117.6470588
		+	\|-
		+	\| PVOH(22k),0.5mLGA,1mLPP\|\|10/24/2012\|\|0.0279\|\|0.0596\|\|0.0317\|\|113.6200717
		+	\|-
		+	\| PVOH(22k),1mLGA,1mLPP\|\|---\|\|0.0369\|\|0.0687\|\|0.0318\|\|86.17886179
		+	\|-
		+	\| PVOH(22k),8.24µLGA,100%CECMT\|\|---\|\|0.0447\|\|0.1038\|\|0.0591\|\|132.2147651
		+	\|-
		+	\| PVOH(22k),0.5mLGA,100%CECMT\|\|10/19/2012\|\|0.0115\|\|0.0425\|\|0.031\|\|269.5652174
		+	\|}
		+	* The films that displayed the smallest percent change in mass were PVOH(22K)+0.8wt%GA+100%CECMT (exchanged with CuSO<sub>4</sub>) and PVOH(22K)+1mLGA+1mLPP.
		+	* The films that displayed the largest percent change in mass were PVOH(22K)+0.5mLGA+100%CECMT, PVOH(22K)+0.5mLGA+NaMT, and PVOH(22K)+0.5mLGA+1mLPP.
		+	* Effect of ion exchange?
		+	* It appears that adding 0.5 mL of glutaraldehyde to the films does not induce sufficient crosslinking to prevent swelling. However, 1 mL of glutaraldehyde seemed to reduce the degree to which the films swelled.
		+	* Overall, most films displayed about a 100% increase in mass. In other words, their mass approximately doubled due to swelling.

	==Standardization of NaHCO<sub>3</sub>==		==Standardization of NaHCO<sub>3</sub>==

Melissa Novy: /* Objectives */

Melissa Novy — Fri, 16 Nov 2012 20:40:40 GMT

Objectives

←Older revision		Revision as of 20:40, 16 November 2012
Line 17:		Line 17:
	* Standardize 1 M NaHCO<sub>3</sub> solution.		* Standardize 1 M NaHCO<sub>3</sub> solution.
	* Soak PVOH (MW 22000) in HPLC grade H<sub>2</sub>O to determine change in mass due to swelling.		* Soak PVOH (MW 22000) in HPLC grade H<sub>2</sub>O to determine change in mass due to swelling.
-	* Soak PVOH (MW 22000), 1 mL glutaraldehyde, 1 mL porphyrin in 2 wt% H<sub>2</sub>SO<sub>4</sub>.	+	* Soak PVOH (MW 22000), 1 mL glutaraldehyde, 1 mL porphyrin in 2 wt% H<sub>2</sub>SO<sub>4</sub> until the film turns green. Then soak the film in salt solution and take UV-vis of the film.

	==Standardization of NaHCO<sub>3</sub>==		==Standardization of NaHCO<sub>3</sub>==

Melissa Novy at 20:39, 16 November 2012

Melissa Novy — Fri, 16 Nov 2012 20:39:42 GMT

←Older revision		Revision as of 20:39, 16 November 2012
Line 14:		Line 14:
	\|colspan="2"\|		\|colspan="2"\|
	<!-- ##### DO NOT edit above this line unless you know what you are doing. ##### -->		<!-- ##### DO NOT edit above this line unless you know what you are doing. ##### -->
-	==~~Entry title~~==	+	==Objectives==
-	* ~~Insert content here~~...	+	* Standardize 1 M NaHCO<sub>3</sub> solution.
		+	* Soak PVOH (MW 22000) in HPLC grade H<sub>2</sub>O to determine change in mass due to swelling.
		+	* Soak PVOH (MW 22000), 1 mL glutaraldehyde, 1 mL porphyrin in 2 wt% H<sub>2</sub>SO<sub>4</sub>.
		+
		+	==Standardization of NaHCO<sub>3</sub>==
		+	* Protocol
		+	*# Weigh out 20 g of potassium hydrogen phthalate (KHP).
		+	*# The mass was divided into thirds, and then dried in the oven at 90°C for 48 hours.
		+	*# Each sample was divided in half again to give six samples of KHP total.
		+	*# One sample was placed in a 100 mL beaker and 2 drops of bromothymol blue was added.
		+	*# 1 M NaHCO<sub>3</sub> was poured into a titration buret and the initial volume was recorded.
		+	*# The KHP was titrated with the NaHCO<sub>3</sub> solution until the solution in the beaker turned blue and stopped fizzing.
		+	*# The process was repeated for two more KHP samples.
		+	*# The number of moles in the NaHCO<sub>3</sub> solution was calculated.
		+
		+	CALCULATIONS
		+


	<!-- ##### DO NOT edit below this line unless you know what you are doing. ##### -->		<!-- ##### DO NOT edit below this line unless you know what you are doing. ##### -->
-	\|}	+

	__NOTOC__		__NOTOC__

Melissa Novy: Autocreate 2012/11/16 Entry for User:Melissa_Novy/Notebook/CHEM-581

Melissa Novy — Fri, 16 Nov 2012 20:31:29 GMT

Autocreate 2012/11/16 Entry for User:Melissa_Novy/Notebook/CHEM-581

New page

{|{{table}} width="800"
|-
|style="background-color: #cdde95;" align="center"|

<LNCalendar></LNCalendar>

|align="center" style="background-color: #e5edc8;" |

[[Image:BDLlogo_300.png|300px]] <sitesearch>title=Search this Project</sitesearch>

|-
|colspan="2" style="background-color: #F2F2F2;" align="right"|[[{{FULLPAGENAME}}/Entry_Base|Customize your entry pages]] [[Help:Notebook/Project_Base/Customize_entry_page|<html><img src="/images/a/aa/Help.png" border="0" /></html>]]
|-
|colspan="2"|

==Entry title==
* Insert content here...


|}

__NOTOC__