User:Eleni N. Kalivas/Notebook/CHEM-571/2014/08/29: Difference between revisions
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== | ==Objective== | ||
#Complete the film synthesis from Wednesday | |||
#Start new film synthesis of both 10% and 5% weight by clay. | |||
#Make all Malachite green solutions | |||
==Protocol== | |||
*Complete Film synthesis from Wednesday August, 27th | |||
# Warm 150mL of Sodium Sulfate Solution at 80C for 15 minutes | |||
# Place film in Sodium Sulfate Solution 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 | |||
*Starting new film Synthesis | |||
#create a new 10% clay-polyvinyl alcohol film using Wednesdays procedure | |||
#create a 5% clay-polyvinyl alcohol film | |||
*Malachite Green Solutions | |||
# 25mL 0.20ppm Malachite Green | |||
# 25mL 0.50ppm Malachite Green | |||
# 25mL 1.1ppm Malachite Green | |||
# 25mL 1.4ppm Malachite Green | |||
# 25mL 1.7ppm Malachite Green | |||
# 50mL 2.0ppm Malachite Green | |||
# 50mL 8.0ppm Malachite Green | |||
# 50mL 80.0ppm Malachite Green | |||
# 50mL 200.0ppm Malachite Green | |||
==Solution Preparation== | |||
*Complete film synthesis | |||
# 0.2M Sodium Sulfate Solution | |||
## I dissolved 22.034g of anhydrous Na<sub>2</sub>SO<sub>4</sub> in 1000mL of water | |||
## I added 100mL of concentrated H<sub>2</sub>SO<sub>4</sub> to this solution | |||
## This solution will be used to enable the reaction between polyvinyl alcohol and glutaraldehyde in order to cross link the polymer film | |||
# 1% wt. HCl Solution | |||
## I added 10mL of concentrated HCl to 985mL of water | |||
## This solution will be used to enable the reaction between polyvinyl alcohol and glutaraldehyde in order to cross link the polymer film | |||
# 0.2M Sodium Bicarbonate Solution | |||
## I dissolved 17.042g of NaHCO<sub>3</sub> in 1000mL of water | |||
## This solution will be used to neutralize the acid in your films | |||
*New film synthesis of 10% and 5% clay by weight | |||
# Polymer-Clay Films | |||
## Add 7mL of water to 1g of polyvinyl alcohol and 0.05g of sodium montmorillonite in a glass vial | |||
## Stir the solution with constant heating at 75C until the polymer is dissolved and the clay is dispersed (~15 minutes) | |||
## Cool the solution to room temperature | |||
## Add 0.5mL 0.8 wt% glutaraldehyde. | |||
## Stir for an additional 3 minutes to ensure homogeneity | |||
## Pour solution into a teflon dish to dry | |||
*Malachite green solutions | |||
==Data== | |||
UV-vis spectra of Malachite Green Solutions from 0.2ppm to 8ppm | |||
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Revision as of 08:32, 29 August 2014
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Objective
Protocol
Solution Preparation
DataUV-vis spectra of Malachite Green Solutions from 0.2ppm to 8ppm
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