User:Karlena L. Brown/Notebook/PVOH Research/2012/11/09: Difference between revisions
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* Prepare PVOH films for Acetylation Reactions | * Prepare PVOH films for Acetylation Reactions | ||
==Acetylation Reaction Protocol== | ==Acetylation Reaction Protocol & Film Preparation== | ||
* In 10mL beaker, weigh out ~ 1.0 grams PVOH (MW 22K) | |||
* Then, using a graduated cylinder add ~ 5 mL H<sub>2</sub>O to the beaker | |||
* After adding and combining PVOH (MW 22K) in a small beaker with H<sub>2</sub>O, add a stir bar and prepare to stir solution | |||
* On hot plate, stir and heat beaker solutions at 70-80°C for ~ 12 min or until PVOH dissolves | |||
* Once PVOH solids thoroughly dissolve in solution, add a small portion of acetic acid (HoAc) | |||
* In addition, add ~2 drops of HCl to the solution and continue to stir for an hour | |||
* Allow the solution to cool and titration | |||
{| {{table}} | |||
| align="center" style="background:#f0f0f0;"|'''PVOH Mass (g)''' | |||
| align="center" style="background:#f0f0f0;"|'''Acetic Acid (mL)''' | |||
| align="center" style="background:#f0f0f0;"|'''Hydrochloric Acid (drops)''' | |||
|- | |||
| 1.0062||1.30||2 | |||
|- | |||
| 1.0043||0.26||2 | |||
|- | |||
| 1.0052||0.52||2 | |||
|- | |||
| 1.0027||0.78||2 | |||
|} | |||
==Acetylation Reaction Film Preparation== | ==Acetylation Reaction Film Preparation== | ||
==Acetylation Reaction Calculations== | ==Acetylation Reaction Calculations== |
Revision as of 12:14, 30 November 2012
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OBJECTIVES
Acetylation Reaction Protocol & Film Preparation
Acetylation Reaction Film PreparationAcetylation Reaction Calculations |