Objective
Create duplicate films from the ion exchanged clays
Finish processing the clays from 9/24/2014
Completing film synthesis
The ion exchanged clays were processed using the procedure from 8/29/2014
Warm 150mL of Sodium Sulfate Solution (see below for details) at 80C for 15 minutes
Place film in Sodium Sulfate Solution (see below for details) at 80C for 1 hour with gentle stirring
Warm 150mL of 1% HCl at 80C for 15 minutes
Place film in 1% HCl Solution (see below for details) at 80C for 30 minutes with gentle stirring
Place film in Sodium Bicarbonate Solution for 15 minutes at room temperature with gentle stirring
The PVA with (1-hexadecyl) triphenylphosphonium bromide film from Eleni's group looked homogeneous, with a light brown color.
Below is a picture of the PVA with tributylhexadecylphosphonium bromide made by my group
Creating New Films
Our cation exchanged clays were made as follows:
PVA + tributylhexadecylphosphonium bromide exchanged clay
Mass of PVA = 1.00245g
Mass of tributylhexadecylphosphonium bromide = .1104g
Volume of Water = 7.0 mL
PVA + (1-hexadecyl)triphenylphosphonium bromide exchanged clay
Mass of PVA = 1.00453g
Mass of (1-hexadecyl)triphenylphosphonium bromide = 0.1126g
Volume of water = 7.0 mL
Note: Because film created using the tributylhexadecylphosphonium bromide exchanged-clay had flakes of the clay clumped throughout the films, today I ground our exchanged-clay into a finer powder using a mortar and pestle for use in today's film synthesis.