User:Elizabeth Ghias/Notebook/Experimental Chemistry/2013/02/01: Difference between revisions
From OpenWetWare
(Autocreate 2013/02/01 Entry for User:Elizabeth_Ghias/Notebook/Experimental_Chemistry) |
No edit summary |
||
| Line 10: | Line 10: | ||
==Objective== | ==Objective== | ||
To calculate the number of OH groups in polyvinyl alcohol (MW = 146000 - 186000) and to prepare PVOH films | |||
==Description== | ==Description== | ||
<u>OH Group Calculations</u> | |||
<u>Isopropyl Solution Preparation<u> | |||
<u>Films Prepared</u> | |||
All films were heated on a hot plate until the PVOH dissolved in the water. For films 5,6, and 7, additional water was added to the gel to assist in the dissolution. Once dissolved, the film was removed from heat and any additional reagents were added while the gel was stirred. When isopropyl and glutaraldehyde were added, the isopropyl would be added first and then would stir for roughly 2 to 3 minutes. Glutaraldehyde was added last. Once prepared, the films were poured into a large plastic dish and were allowed to evaporate over the weekend. | |||
# 0.5043 g PVOH + 6 mL water (this was the only small film prepared) | |||
# 0.5027 g PVOH + 6 mL water + 1 mL glutaraldehyde | |||
# 0.5029 g PVOH + 6 mL water + 87 μL isopropyl stock solution + 1 mL glutaraldehyde | |||
# 0.5029 g PVOH + 6 mL water + 87 μL 10% isopropyl solution (see notes) + 1 mL glutaraldehyde | |||
# 0.5060 g PVOH + 6 mL water + 87 μL 1% isopropyl solution + 1 mL glutaraldehyde | |||
# 0.5034 g PVOH + 6 mL water + 87 μL 0.1% isopropyl solution + 1 mL glutaraldehyde | |||
# 0.5050 g PVOH + 6 mL water | |||
==Data== | ==Data== | ||
* | |||
* No data was collected today | |||
==Notes== | ==Notes== | ||
* The 10% isopropyl solution refers to a solution that is 10% of the isopropyl stock solution. Similarily, a 1% or 0.1% solution refers to 1% and 0.1% of the stock solution, respectively. | |||
Revision as of 12:48, 1 February 2013
 Experimental Chemistry
|
<html><img src="/images/9/94/Report.png" border="0" /></html> Main project page <html><img src="/images/c/c3/Resultset_previous.png" border="0" /></html>Previous entry<html> </html>Next entry<html><img src="/images/5/5c/Resultset_next.png" border="0" /></html> |
|
ObjectiveTo calculate the number of OH groups in polyvinyl alcohol (MW = 146000 - 186000) and to prepare PVOH films DescriptionOH Group Calculations
Films Prepared All films were heated on a hot plate until the PVOH dissolved in the water. For films 5,6, and 7, additional water was added to the gel to assist in the dissolution. Once dissolved, the film was removed from heat and any additional reagents were added while the gel was stirred. When isopropyl and glutaraldehyde were added, the isopropyl would be added first and then would stir for roughly 2 to 3 minutes. Glutaraldehyde was added last. Once prepared, the films were poured into a large plastic dish and were allowed to evaporate over the weekend.
Data
Notes
| |
