User:Moira M. Esson/Notebook/CHEM-581/2012/09/12: Difference between revisions
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# Make 2.0 g Na-MT coated with Fe<sub>3</sub>O<sub>4</sub> in a 2:1 ratio of Na-MT to Fe<sub>3</sub>O<sub>4</sub>. | # Make 2.0 g Na-MT coated with Fe<sub>3</sub>O<sub>4</sub> in a 2:1 ratio of Na-MT to Fe<sub>3</sub>O<sub>4</sub>. | ||
# Run DSC on crosslinked and uncrosslinked PVOH (MW 22000) films. | # Run DSC on crosslinked and uncrosslinked PVOH (MW 22000) films. | ||
== | ==Clay Preparation== | ||
General protocol for 100% exchange: | General protocol for 100% Bu<sub>3</sub>HdP<sup>+</sup> Sodium montmorillinite(NaMT) exchange: | ||
*In a 50mL Eerlenmeyer flask, weigh out ~ 2 grams of clay(NaMT) | *In a 50mL Eerlenmeyer flask, weigh out ~ 2 grams of clay(NaMT) | ||
*Add appropriate amount of Bu<sub>3</sub>HdP<sup>+</sup> | *Add appropriate amount of Bu<sub>3</sub>HdP<sup>+</sup> | ||
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*Allow to stir for ~1 week | *Allow to stir for ~1 week | ||
Preparation of 100% exchange: | Preparation of 100% Bu<sub>3</sub>HdP<sup>+</sup>(NaMT) exchange: | ||
'''2.0095 g Na-MT x (92 meqv/100 g Na-MT) x (1 mol Bu<sub>3</sub>HdP<sup>+</sup>/1000 meqv) x (100/100)% x (507.65 g Bu<sub>3</sub>HdP<sup>+</sup>/1 mol Bu<sub>3</sub>HdP<sup>+</sup>) = 0.9385 g Bu<sub>3</sub>HdP<sup>+</sup>''' | '''2.0095 g Na-MT x (92 meqv/100 g Na-MT) x (1 mol Bu<sub>3</sub>HdP<sup>+</sup>/1000 meqv) x (100/100)% x (507.65 g Bu<sub>3</sub>HdP<sup>+</sup>/1 mol Bu<sub>3</sub>HdP<sup>+</sup>) = 0.9385 g Bu<sub>3</sub>HdP<sup>+</sup>''' | ||
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*Actual mass of NaMT used= 2.0095g | *Actual mass of NaMT used= 2.0095g | ||
General Protocol for 50% exchange: | General Protocol for 50% Bu<sub>3</sub>HdP<sup>+</sup>(NaMT) exchange: | ||
*Repeat steps in general protocol of 100% exchange BUT use only half of the amount of Bu<sub>3</sub>HdP<sup>+</sup> | *Repeat steps in general protocol of 100% exchange BUT use only half of the amount of Bu<sub>3</sub>HdP<sup>+</sup> | ||
Preparation of 50% exchange: | Preparation of 50% Bu<sub>3</sub>HdP<sup>+</sup>(NaMT) exchange: | ||
'''2.0046 g Na-MT x (92 meqv/100 g Na-MT) x (1 mol Bu<sub>3</sub>HdP<sup>+</sup>/1000 meqv) x (50/100)% x (507.65 g Bu<sub>3</sub>HdP<sup>+</sup>/1 mol Bu<sub>3</sub>HdP<sup>+</sup>) = 0.4682 g Bu<sub>3</sub>HdP<sup>+</sup>''' | '''2.0046 g Na-MT x (92 meqv/100 g Na-MT) x (1 mol Bu<sub>3</sub>HdP<sup>+</sup>/1000 meqv) x (50/100)% x (507.65 g Bu<sub>3</sub>HdP<sup>+</sup>/1 mol Bu<sub>3</sub>HdP<sup>+</sup>) = 0.4682 g Bu<sub>3</sub>HdP<sup>+</sup>''' | ||
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*Mass of Bu<sub>3</sub>HdP<sup>+</sup> used = 0.4690g) | *Mass of Bu<sub>3</sub>HdP<sup>+</sup> used = 0.4690g) | ||
==Fe<sub> | ==Fe<sub>2</sub>O<sub>3</sub> coated NaMT preparation== | ||
General Protocol: | General Protocol: | ||
# In a 50mL Erlenmyer flask, place 2g NaMT | # In a 50mL Erlenmyer flask, place 2g NaMT and a magnetic stirrer | ||
# In the same 50mL Erlenmyer flask add ~1g | # In the same 50mL Erlenmyer flask add ~1g FeSO<sub>4</sub> | ||
# Add ~1g FeCl<sub>3</sub> | # Add ~1g FeCl<sub>3</sub> | ||
# Using deionized H<sub>2</sub>O | # Add 40mL deionized H<sub>2</sub>O to Erlenmyer flask | ||
# Add 10mL 5M NaOH to the solution dropwise while stirring the solution | |||
# ~30 minutes after stirring filter the solution | |||
# Using 41 Whatman filter paper, the solution was filtered and the clay was collected | |||
'''Notes''': | |||
* Upon precipitating the Fe, the solution turned a dark brown/ blackish solution | |||
* The Erlenmyer flask was rinsed with deionized H<sub>2</sub>O | |||
==Glutaraldehyde film preparation== | ==Glutaraldehyde film preparation== |
Revision as of 18:24, 16 October 2012
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Objectives
Clay PreparationGeneral protocol for 100% Bu3HdP+ Sodium montmorillinite(NaMT) exchange:
Preparation of 100% Bu3HdP+(NaMT) exchange: 2.0095 g Na-MT x (92 meqv/100 g Na-MT) x (1 mol Bu3HdP+/1000 meqv) x (100/100)% x (507.65 g Bu3HdP+/1 mol Bu3HdP+) = 0.9385 g Bu3HdP+
Preparation of 50% Bu3HdP+(NaMT) exchange: 2.0046 g Na-MT x (92 meqv/100 g Na-MT) x (1 mol Bu3HdP+/1000 meqv) x (50/100)% x (507.65 g Bu3HdP+/1 mol Bu3HdP+) = 0.4682 g Bu3HdP+
Fe2O3 coated NaMT preparationGeneral Protocol:
Notes:
Glutaraldehyde film preparationGeneral Protocol:
Glutaraldehyde safety:
Preparation: Actual mass PVOH(MW 22000) used= 0.5141g
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