User:Moira M. Esson/Notebook/CHEM-581/2013/04/12: Difference between revisions
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==Film Preparation== | ==Film Preparation== | ||
*The general protocol for film preparation described on [[User:Moira_M._Esson/Notebook/CHEM-581/2012/08/29|2012/08/29]] was followed. The necessary amount of clay was added in the correct ratio. All films were prepared on a 0.5g scale. The films were placed in a freezer at -20°C immediately after pouring. These films will undergo the cyclic freeze-thaw procedure used for hydrogel preparation. | |||
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Table 1. Film Preparation | |||
<br> | |||
{| {{table}} | |||
| align="center" style="background:#f0f0f0;"|'''PVOH vs. Clay Ratio''' | |||
| align="center" style="background:#f0f0f0;"|'''Clay Selection''' | |||
| align="center" style="background:#f0f0f0;"|'''PVOH 146K Mass (g)''' | |||
| align="center" style="background:#f0f0f0;"|'''Actual Clay Mass (g)''' | |||
| align="center" style="background:#f0f0f0;"|'''H<sub>2</sub>O Added (mL)''' | |||
|- | |||
| 50:50||NaMT||0.26260||0.24770||8.0 | |||
|- | |||
| 90:10||NaMT||0.40100||0.12140||8.0 | |||
|- | |||
| 50:50||Laponite||0.24750||0.24580||8.0 | |||
|- | |||
| 90:10||Laponite||0.40580||0.10910||8.0 | |||
|- | |||
| 90:10||110% CEC Laponite w/ DMHXLBR||0.25080||0.24850||8.0 | |||
|- | |||
| 50:50||110% CEC Laponite w/ DMHXLBR||0.39820||0.10840||8.0 | |||
|} | |||
Revision as of 10:11, 15 April 2013
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Objectives
DSC
# Equilibrate sample at ~ -40°C # Ramp sample temperature up from 20-240°C # Ramp sample temperature down from 20-(-40°C) # Repeat segment #2 again
Film Preparation
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