User:Madeleine Y. Bee/Notebook/CHEM-581 Experimental Chemistry/2014/09/03

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September 3, 2014

Procedures

Completing Film Synthesis

Continued from Friday, 8/29/2014<br.> Procedure detailed by Dr Hartings

  • Stir in Sodium Sulfate, 1% HCl, and Sodium Bicarbonate solutions

Beginning New Film Synthesis

Procedure detailed by Dr Hartings

  • Polymer-10% Clay Film
    • 1.0012 g PVA and 0.1120 g sodium montmorillonite (~1g PVA and ~.1g NaM)
  • Polymer Film
    • 1.0077 g PVA (~1g)

Differential Scanning Calorimetry Measurements

  • Polymer-10% Clay Film in 2 ppm MG
    • Pan and lid mass: 0.05289 g
    • Film mass: 0.00406 g
  • Polymer-10% Clay Film in 8 ppm MG
    • Pan and lid mass: 0.05226 g
    • Film mass: 0.00549 g
  • Polymer-10% Clay Film in 80 ppm MG
    • Pan and lid mass: 0.05297 g
    • Film mass: 0.00338 g
  • Polymer-10% Clay Film in 200 ppm MG
    • Pan and lid mass: 0.05253 g
    • Film mass: 0.00346 g
  • Polymer Film in 2 ppm MG
    • Pan and lid mass: 0.05299 g
    • Film mass: 0.00388 g
  • Polymer Film in 8 ppm MG
    • Pan and lid mass: 0.05225 g
    • Film mass: 0.00349 g
  • Polymer Film in 80 ppm MG
    • Pan and lid mass: 0.04741 g
    • Film mass: 0.00393 g
  • Polymer Film in 200 ppm MG
    • Pan and lid mass: 0.05242 g
    • Film mass: 0.00349 g
  • Polymer-10% Clay Film
    • Pan and lid mass: 0.05261 g
    • Film mass: 0.00442 g
  • Polymer Film
    • Pan and lid mass: 0.05213 g
    • Film mass: 0.00471 g

<br.>

Differential Scanning Calorimetry Data

' PVA film in 2 ppm MG PVA film in 8 ppm MG PVA film in 80 ppm MG PVA film in 200 ppm MG
Onset of H2O evaporation 99.59 °C 100.91 °C 99.82 °C 99.77 °C
Heat of hydrate decomposition 830.4 J/g 1130 J/g 1458 J/g 938.2 J/g
Major peaks in H2O (minima) 101, 103, 134 °C 103.58, 107, 117, 120 °C 110, 117, 130 °C 125.54, 135, 106, 101 °C
Glass transition (avg, top) 68.99 °C 68.11 °C 68.17 °C 68.36 °C
Glass transition (avg, first bottom) - 68.94 °C 68.56 °C 69.15 °C
Glass transition (avg, second bottom) - 87.66 °C - -
PVA-Clay film in 2 ppm MG PVA-Clay film in 8 ppm MG PVA-Clay film in 80 ppm MG PVA-Clay film in 200 ppm MG
Onset of H2O evaporation 100.51 °C 98.55 °C 100.76 °C 99.70 °C
Heat of hydrate decomposition 1276 J/g 865.9 J/g 1044 J/g 1138 J/g
Major peaks in H2O (minima) 107, 109, 11, 125 °C 101.19, 104, 130 °C 101, 105, 108 °C 108, 110, 131 °C
Glass transition (avg, top) 68.16 °C 68.59 °C 68.27 °C 68.54 °C
Glass transition (avg, bottom) 68.70 °C 69.02 °C 68.50 °C 67.97 °C

FTIR: Total Attenuated Reflectance Measurements




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