User:Moira M. Esson/Notebook/CHEM-581/2012/09/21: Difference between revisions
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**The sample was prepared by grinding the clay to a fine powder using a mortar and pestle | **The sample was prepared by grinding the clay to a fine powder using a mortar and pestle | ||
'''Note''': This clay was particularly difficult to grind. It is also reddish brown in color | '''Note''': This clay was particularly difficult to grind. It is also reddish brown in color | ||
==DSC== | |||
DSC ran on 9/14/2012 was analyzed. Glass transition states were calculated using the program | |||
[[Media:PVOH(22K),_10%S,_HCl.pdf|Graph of heat flow of uncrosslinked PVOH (MW 22000) + 10% succinic acid + HCl]]. | |||
* A glass transition was observed at 105.17°C. | |||
<br> | |||
[[Media:CL PVOH(22K),_10%S,_HCl.pdf|Graph of heat flow of crosslinked PVOH (MW 22000) + 10% succinic acid + HCl]]. | |||
* A glass transition was observed at 138.04°C. Note that this temperature is above the glass transition observed for the uncrosslinked film of same formulation. This indicates that some crosslinking successfully occurred. | |||
<br> | |||
[[Media:PVOH(22K),_10%M,_HCl.pdf|Graph of heat flow of uncrosslinked PVOH (MW 22000) + 10% maleic acid + HCl]]. | |||
* A glass transition was observed at 109.61°C. | |||
<br> | |||
[[Media:CL_PVOH_22K_10%M_HCl.pdf|Graph of heat flow of crosslinked PVOH (MW 22000) + 10% maleic acid + HCl]]. | |||
<br> | |||
[[Media:PVOH_(22K).pdf|Graph of heat flow of uncrosslinked PVOH (MW 22000)]]. | |||
* A glass transition was observed at 70.62°C. | |||
<br> | |||
[[Media:CL_PVOH_(22K).pdf|Graph of heat flow of crosslinked PVOH (MW 22000)]]. | |||
Revision as of 20:16, 14 October 2012
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Objectives
Fixant Solution preparation
Film preparation
The films were prepared following the General Protocol described on2012/09/12
*PDMS density=0.97g/mL 5%(1.00gPVOH)=0.95g+0.05gPDMS 0.05g(1mL/0.97g)=0.0515mL PDMS must be added to create 5% replaced PDMS film
The film was prepared following the General Protocol described on2012/08/29
SO42- DilutionsGeneral Protocol for Dilutions:
1ppm: M1V1=M2V2 (20ppm CuSO4stock)(V1)=(1ppm)(50mL) V1=2.5mL= volume of stock needed to prepare
2ppm: V1=(2ppm)(50mL)/20ppm V1=5mL
5ppm: V1=(5ppm)(50mL)/(20ppm) V1=12.5mL
10ppm: V1=(10ppm)(50mL)/(20ppm V1=25mL
20ppm: V1=(15ppm)(50mL)/(20ppm) V1=37.5mL
X-RayThe General Protocol for X-Ray described on 2012/09/19 was used
Note: This clay was particularly difficult to grind. It is also reddish brown in color DSCDSC ran on 9/14/2012 was analyzed. Glass transition states were calculated using the program Graph of heat flow of uncrosslinked PVOH (MW 22000) + 10% succinic acid + HCl.
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