User:Mary Mendoza/Notebook/CHEM 581: Experimental Chemistry I/2014/10/29: Difference between revisions
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|style="background-color: #EEE"|[[Image:owwnotebook_icon.png|128px]]<span style="font-size:22px;"> Project name</span> | |style="background-color: #EEE"|[[Image:owwnotebook_icon.png|128px]]<span style="font-size:22px;"> Project name</span> | ||
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== | ==Introduction to Bead Synthesis== | ||
* | * It has been mentioned that the synthesis of polymer beads is probable. The following procedures were performed through trial and error. | ||
* 0.0550 g of sodium montmorillonite and 0.5000 g of PVA was added to 6 mL of 10% HCl with heat at approximately 80°C. | |||
* Others dissolved their NaMT and PVA in 7 mL; I thought that minimizing the volume of HCl is best since the addition of heat is sufficient to dissolve the solids. I chose the volume of 6 mL by observing that this amount is not saturated with the solids portion of the mixture. | |||
* 1 M HCl (10% HCl) was diluted from 12 M HCl into water by Dr. Hartings. | |||
* The mixture was allowed to stir until dissolved. | |||
* Once the mixture was dissolved, a pasteur pipette was used to make add droplets into solutions. | |||
* James and I performed the procedure while Jake observed and recorded the trials performed. | |||
<u>Acetone Trial</u> | |||
* PVA-Clay was not strong enough to hold a sphere but rather made string/fibers. This can be weaved into a sort of bead but this cannot be measured | |||
* James suggested that an organic phase such as hexane should enable the formation of beads. | |||
<u>Hexane Trial #1</u> | |||
* HCl is immiscible in Hexane, spherical constitution of beads was overall maintained. Upon adding to Glutaraldehyde, the beads did not stay together. | |||
* Used 250μL Gluteraldehyde in 10mL Hexane | |||
[[Image:20141029_095539-1.jpg|center|478x395px|Initial creation of beads in Hexane.]] | |||
<u>Hexane Trial #2</u> | |||
* This time the Glutaraldehyde was rapidly stirred and the PVA-Clay solution was slowly dropped in. Bead formation was observed while stirring, however the beads were not given enough time to finish cross linking and stuck together. | |||
* Used 100μL Glutaraldehyde in 10mL Hexane | |||
<u>Hexane Trial #3</u> | |||
* Bigger container and more time in between drops in order to allow more time to cross linking. | |||
* 200μL Glutaraldehyde in 150mL Hexane | |||
<u>Hexane Trial #4</u> | |||
* Using a blender this time in attempt to make an emulsion. | |||
Latest revision as of 00:29, 27 September 2017
Project name | Main project page Previous entry Next entry |
Introduction to Bead Synthesis
Acetone Trial
Hexane Trial #1
Hexane Trial #2
Hexane Trial #3
Hexane Trial #4
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