User:Karlena L. Brown/Notebook/PVOH Research/2013/02/04: Difference between revisions
From OpenWetWare
(→Notes) |
|||
Line 69: | Line 69: | ||
* While attempting to filter the clays, due to vacuum filtration moving rather slowly during separation, clays only were filter for ~ 2.5 hours before actually being placed in the oven. | * While attempting to filter the clays, due to vacuum filtration moving rather slowly during separation, clays only were filter for ~ 2.5 hours before actually being placed in the oven. | ||
* The temperature of the oven when the clays were placed in was ~ 90°C. | * The temperature of the oven when the clays were placed in was ~ 90°C. | ||
* When removing clays from freeze and thaw process in cycle #1, many clays appeared to maintain ice crystals within their structure. | |||
* NaMT clays after freezing and thawing cycles appeared more rigid than laponite samples, but all in all PVOH 146K structure was maintained. | |||
* As freezing and thawing continued, PVOH 146K control sample became more crystalline and clear in appearance. | |||
Revision as of 21:15, 10 February 2013
PVOH Research | <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> |
OBJECTIVESACCIDENTALLY PLACED THIS ENTRY ON THE FEBRUARY 4th; HOWEVER, THIS ENTRY SHOULD BE UNDER FEBRUARY 6th. THANK YOU.
90:10 PVOH Clay Microsphere Preparations*Reaction should be carried out using a reflux condenser and a thermostatic water bath of 55°C.
* 1,2-dichloroethane * acetone * hot water * cold water * methanol
* The following procedure was adapted from the article Poly(vinyl alcohol) microspheres with pH- and thermosensitive properties as temperature-controlled drug delivery [1]
Important 1,2 Dichloroethane and Glutaraldehyde Safety
Clay Exchanged Solutions & Vacuum Filtration ProceduresThe clays being filtered are the clays that were prepared on 2/1/13 Setup of a vacuum filtration system: * Clean 250mL Erlenmeyer Filter Flask * Large Buchner Funnel * Whatman #42 Filter Paper * Long Secure Rubber Hose
NotesACCIDENTALLY PLACED THIS ENTRY ON THE FEBRUARY 4th; HOWEVER, THIS ENTRY SHOULD BE UNDER FEBRUARY 6th. THANK YOU.
|