Objectives
- Analyze all films made since 2012/08/31 with FTIR.
- Make a film of PVOH (MW 22000) and 5-hydroxymethyl(furfural) with HCl.
- Make more concentrated porphine solutions with Al+3, Fe+3, or Na+2 salts for UV-vis analysis.
- Conduct ion diffusion analysis on PVOH(22K) + 1 mL GA films exchanged for 10 min with CuSO4.
PVOH(22K) + Furfural Film
Ion Diffusion Analysis
- Please refer to Karlena Brown's entry for the ISE conductivity protocol and observations.
- Note that the varied ion solution contained 1000 ppm each of Cl-, Br-, and I-.
HPLC-Grade H2O Solution
| Time Recordings
| Initial Volume[mL]
| Final Volume [mL]
| Conductivity [μS/cm]
|
| 8:50AM | 28 | 28 | 19.93
|
| 9:00AM | 28 | 29 | 23.13
|
| 9:30AM | 29 | 29 | 24.60
|
| 10:00AM | 29 | 28.5 | 27.20
|
| 10:30AM | 28.5 | 29 | 30.5
|
| 11:00AM | 29 | 29 | 33
|
| 11:30AM | 29 | 29 | 35.7
|
| 12:00PM | 29 | 29 | 38.9
|
| 3:15PM | 29 | 28.6 | 52.7
|
| 9:00PM | 28.6 | 27.2 | 76.2
|
Varied Ion Solution
| Time Recordings
| Initial Volume(mL)
| Final Volume (mL)
| Conductivity (μS/cm)
|
| 8:50AM | 30 | 30 | 864
|
| 9:00AM | 30 | 30 | 869
|
| 9:30AM | 30 | 30 | 874
|
| 10:00AM | 30 | 30 | 865
|
| 10:30AM | 30 | 30 | 863
|
| 11:00AM | 30 | 29.5 | 861
|
| 11:30AM | 29.5 | 30 | 858
|
| 12:00PM | 30 | 30 | 853
|
| 3:15PM | 30 | 29.8 | 840
|
| 9:00PM | 29.8 | 28 | 819
|
|
