Creating a Polymer Lab
Question:
What materials are needed to create a polymer?
Hypothesis:
If you add the a higher amount of glue and a lesser amount sodium borate, and mix them together, they will then form a mixture and create a polymer.
Materials:
500 mL water
25mL Elmer's glue
1 tsp. Borax
1 graduated cylinder
1 600 mL beaker
1 250 mL beaker
Stirring rod
Procedure:
In the measuring cup, add one tablespoon of borax powder to 100 mL of water and stir. Measure out 1/2 cup of Elmer’s glue and add it to 1/2 cup of water in a separate beaker. Now that you have both the borax and the Elmer’s glue solutions, now mix two tablespoons of borax solution to the glue solution. You must stir the new solution vigorously for a little while and you will notice the solution start to change in texture and appearance. There might be some liquid left, you can pour out the runny stuff.
1) How is slime visco-elastic?
Slime is visco-elastic because it is elastic and is thick
What materials are needed to create a polymer?
Hypothesis:
If you add the a higher amount of glue and a lesser amount sodium borate, and mix them together, they will then form a mixture and create a polymer.
Materials:
500 mL water
25mL Elmer's glue
1 tsp. Borax
1 graduated cylinder
1 600 mL beaker
1 250 mL beaker
Stirring rod
Procedure:
In the measuring cup, add one tablespoon of borax powder to 100 mL of water and stir. Measure out 1/2 cup of Elmer’s glue and add it to 1/2 cup of water in a separate beaker. Now that you have both the borax and the Elmer’s glue solutions, now mix two tablespoons of borax solution to the glue solution. You must stir the new solution vigorously for a little while and you will notice the solution start to change in texture and appearance. There might be some liquid left, you can pour out the runny stuff.
1) How is slime visco-elastic?
Slime is visco-elastic because it is elastic and is thick
2)What are the physical properties that change as a result of the addition of sodium borate (borax) to the Elmer's glue?
The mixture became more like a solid than a liquid. It becomes thicker and is not so slimy feeling like glue.
3) What would be the effect of adding more sodium borate?
If you added more sodium borate, the polymer would probably be thicker, take longer to break, and dry faster. I also think that the glue smell would be even more weak and that it would bounce higher.
4) How does the water affect the elasticity of the polymer? What is elasticity?
The water makes it slimy and more elastic-like. It helps it to not dry out; therefore, the polymer is able to stretch without crumbling.6)What is the structural formula of the poly(vinyl alcohol) monomer of the repeating unit?
C2H3OH
Polymer Tests:
Slow progressing poke - Slime wrapped around finger before eventually breaking
Quick, Fast Poke - Finger bounced off slime
Slow pull - Slime stretched before eventually breaking into two pieces
The mixture became more like a solid than a liquid. It becomes thicker and is not so slimy feeling like glue.
3) What would be the effect of adding more sodium borate?
If you added more sodium borate, the polymer would probably be thicker, take longer to break, and dry faster. I also think that the glue smell would be even more weak and that it would bounce higher.
4) How does the water affect the elasticity of the polymer? What is elasticity?
The water makes it slimy and more elastic-like. It helps it to not dry out; therefore, the polymer is able to stretch without crumbling.6)What is the structural formula of the poly(vinyl alcohol) monomer of the repeating unit?
C2H3OH
Polymer Tests:
Slow progressing poke - Slime wrapped around finger before eventually breaking
Quick, Fast Poke - Finger bounced off slime
Slow pull - Slime stretched before eventually breaking into two pieces
Quick yank - Slime ripped in half almost immediately
Bounce test - Bounced about 13 cm up
Bounce test - Bounced about 13 cm up
The Polymer took 1:52 to flatten out
No comments:
Post a Comment