User:Moira M. Esson/Notebook/CHEM-581/2012/09/21: Difference between revisions
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[[Media:CL_PVOH_(22K).pdf|Graph of heat flow of crosslinked PVOH (MW 22000)]]. | [[Media:CL_PVOH_(22K).pdf|Graph of heat flow of crosslinked PVOH (MW 22000)]]. | ||
==Solubility== | ==Solubility== | ||
*The General protocol for testing viscosity was followed using viscometer 2190 | |||
*'''Observations''': | |||
**Mass of film used: 0.0987g | |||
**The PVOH MW 22000+[HCl]+10%succinic acid crosslinked film was allowed to stir for 1 hour. Although the film did not completely dissolve after 1 hour, the size of the film did not change | |||
**Stored the film that remained after 1hr. stirring for further testing | |||
'''Viscosity Calculations''' | |||
* Viscosity of pure H<sub>2</sub>O at 25°C | |||
{| {{table}} | |||
| align="center" style="background:#f0f0f0;"|'''Trial [ ]''' | |||
| align="center" style="background:#f0f0f0;"|'''Time [s]''' | |||
|- | |||
| 1|| 207.68 | |||
|- | |||
| 2|| 207.95 | |||
|- | |||
| 3|| 208.47 | |||
|- | |||
|} | |||
* Average time = 208.03 s | |||
<br> | |||
* Viscosity of PVOH MW 22,000+[HCl]+10%maleic acid at 25°C | |||
{| {{table}} | |||
| align="center" style="background:#f0f0f0;"|'''Trial [ ]''' | |||
| align="center" style="background:#f0f0f0;"|'''Time [s]''' | |||
|- | |||
| 1|| 207.61 | |||
|- | |||
| 2|| 207.96 | |||
|- | |||
| 3|| 207.29 | |||
|- | |||
|} | |||
* Average time = 207.62 s | |||
Revision as of 20:27, 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
Solubility
Viscosity Calculations
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