User:Anh Do/Notebook/CHEM 481 Polymer/2016/09/14: Difference between revisions
From OpenWetWare
(fix raw html notebook nav) |
|||
(3 intermediate revisions by one other user not shown) | |||
Line 2: | Line 2: | ||
|- | |- | ||
|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> | ||
|style="background-color: #F2F2F2" align="center"| | |style="background-color: #F2F2F2" align="center"|[[File:Report.png|frameless|link={{#sub:{{FULLPAGENAME}}|0|-11}}]][[{{#sub:{{FULLPAGENAME}}|0|-11}}|Main project page]]<br />{{#if:{{#lnpreventry:{{FULLPAGENAME}}}}|[[File:Resultset_previous.png|frameless|link={{#lnpreventry:{{FULLPAGENAME}}}}]][[{{#lnpreventry:{{FULLPAGENAME}}}}{{!}}Previous entry]] }}{{#if:{{#lnnextentry:{{FULLPAGENAME}}}}|[[{{#lnnextentry:{{FULLPAGENAME}}}}{{!}}Next entry]][[File:Resultset_next.png|frameless|link={{#lnnextentry:{{FULLPAGENAME}}}}]]}} | ||
|- | |- | ||
| 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. ##### --> | ||
== | ==Follow up on previous beads formation experiment== | ||
*The beads created from last experiment showed some of the beads sticking together. This is not favorable because we want the beads to be separated for solution to easily pass through the column of beads. | *The beads created from last experiment showed some of the beads sticking together. This is not favorable because we want the beads to be separated for solution to easily pass through the column of beads. | ||
*The two vials of beads in ethyl acetate were centrifuged at 3000 rpm for 1 minute | *The two vials of beads in ethyl acetate were centrifuged at 3000 rpm for 1 minute | ||
Line 17: | Line 15: | ||
*Remove the water and let the vials sit | *Remove the water and let the vials sit | ||
==Beads formation using clay solution== | |||
*Create a solution of 2.5 g PVA, 0.275 g NaMT, and 30 mL 10% HCl. | *Create a solution of 2.5 g PVA, 0.275 g NaMT, and 30 mL 10% HCl. | ||
*Mass of PVA meassured = 2.5001 g | **Mass of PVA meassured = 2.5001 g | ||
*0.275 g Bentonite powder is equivalent to 8.89 mL of 3wt% Bentonite solution | **0.275 g Bentonite powder is equivalent to 8.89 mL of 3wt% Bentonite solution | ||
**0.275g*97mL/3g = 8.89 mL | ***Volumn of Bentonite 3wt% solution: 0.275g*97mL/3g = 8.89 mL | ||
* Volumn of HCl = 30 mL, this effectively diluted the whole solution. However, the amount in moles of HCl is the same, which is more important. | ** Volumn of HCl = 30 mL, this effectively diluted the whole solution. However, the amount in moles of HCl is the same, which is more important. | ||
* Place this solution on a hot plate and heat/stir until everything has dissolved. | * Place this solution on a hot plate and heat/stir until everything has dissolved. | ||
* Add 10 mL of this solution to a 50 mL solution of ethyl acetate stirring at 240 rpm in a dropwise manner using a burette. | * Add 10 mL of this solution to a 50 mL solution of ethyl acetate stirring at 240 rpm in a dropwise manner using a burette. | ||
Line 33: | Line 31: | ||
**Make sure the two vials are of approximately the same mass | **Make sure the two vials are of approximately the same mass | ||
**Take out as much solution as possible from the vials, leaving only the beads inside | **Take out as much solution as possible from the vials, leaving only the beads inside | ||
**Wash the beads with water. | |||
**Neutralize the beads using NaHCO<sub>3</sub> powder. Make sure pH~7. | |||
==Follow up on the film making procedure== | |||
*Weigh the films | *Weigh the films | ||
**PVOH + 10% Bentonite + 0.5 mL of Glutaraldehyde: 1.24545 g | **PVOH + 10% Bentonite + 0.5 mL of Glutaraldehyde: 1.24545 g | ||
Line 47: | Line 47: | ||
** PVOH + 0.5 mL Glutaraldehyde: (0.53 - 0.0645)/0.0645 = 7.21705 (This does not make sense!!!!!) | ** PVOH + 0.5 mL Glutaraldehyde: (0.53 - 0.0645)/0.0645 = 7.21705 (This does not make sense!!!!!) | ||
==3% Bentonite Film cross-linking== | |||
*Mass of film = 1.4308 g | * Mass of film = 1.4308 g | ||
* | * Follow this [http://openwetware.org/wiki/User:Douglas_M._Fox/Notebook/AU_CHEM-581_F2012_Lab_Support/2012/08/22 protocol] | ||
<!-- ##### 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. ##### --> |
Latest revision as of 01:58, 27 September 2017
Project name | Main project page Previous entry Next entry |
Follow up on previous beads formation experiment
Beads formation using clay solution
Follow up on the film making procedure
3% Bentonite Film cross-linking
|