User:Samiye Yaman/Notebook/Lab 581/2013/02/13: Difference between revisions

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==Objections==


==Description==
==Description==
*masses of the hydrogels after the swelling study were measured.
*The course is designed by American University to experiment different aspects of PVOH films.
 
*Hydrogels (synthesized on http://openwetware.org/wiki/User:Samiye_Yaman/Notebook/Lab_581/2013/02/06) were sink at the bottom of the beaker. By using sonicator, the hydrogel were separated. After the vacuum filtration, observations under the microscope were made. The hydrogels were placed in to a lyophilizer for 24 hours.
 
*Rest of solution was separated into layers by using separatory funnel. Water was used.
 
==Data==
 
* Hydrogels placed in to various pH of HCl (http://openwetware.org/wiki/User:Samiye_Yaman/Notebook/Lab_581/2013/02/08) did not dissolve in any of the pHs.
 
*Results from Swelling studies (http://openwetware.org/wiki/User:Samiye_Yaman/Notebook/Lab_581/2013/02/08)
 
1)Final mass of PVOH (MW: 146,000)=0.4526g
 
2)Final mass of PVOH (MW: 130,000)=0.8244g
 
3)Final mass of PVOH (MW: 89,000-98,000)=0.7608g
 
*Photos from the microscope
 
[[Image:Hydrogel1.png|400px|]]
 
[[Image:Hydrogels2.png|400px|]]
 
[[Image:Hydrogels3.png|400px|]]
 
[[Image:Hydrogels4.png|400px|]]


*During the course PVOH films with different molecular weight will be produced. Effects of cross-linking, addition of different molecules such as gluteraldehyde, different acids, porphrin will be also tested.
[[Image:Hydrogels5.png|400px|]]


*UV-Vis spectrum, Atomic Absorption spectrum, X-Ray, FTIR, DMA, ISE and many other instruments will be used to analyze the results.
==Notes==

Revision as of 09:12, 13 February 2013

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Objections

Description

  • masses of the hydrogels after the swelling study were measured.
  • Rest of solution was separated into layers by using separatory funnel. Water was used.

Data

1)Final mass of PVOH (MW: 146,000)=0.4526g

2)Final mass of PVOH (MW: 130,000)=0.8244g

3)Final mass of PVOH (MW: 89,000-98,000)=0.7608g

  • Photos from the microscope

Notes
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