The polymers that were made in class contained the following ingredients

White Glue (contains Polyvinyl acetate)

Powdered Laundry Soap (Sodium Laurel Phosphate, et al)

Liquid Corn Starch

Water

 

Polymer I

Part 1 - Stir together 25 ml of white glue and 10 ml of water

Part 2 - Stir together 10 grams of powdered soap (Tide) and 25 ml of water

Combine both parts and stir until a solid polymer forms

 

Polymer II

Measure 25 ml of white glue and stir constantly while adding between 15 to 25 ml of liquid starch. Stop adding starch when a solid gel forms.

 

Polymer III

Try experimenting with with various combinations of the ingredients listed above and see if you can develop a polymer with improved properties.

Substitute Borax soap for the Tide cited above and see what results.

 

Measure the properties with the following tests:

Viscosity (Slump Test) - Make a ball of the polymer. Measure the diameter in cm's. Set the ball down on a flat surface and measure how big a pancake you get after one minute.

Stretch Test - Roll your lump of polymer between tour palms until it is approximately 1 cm in diameter. Grasp the roll between your thumb and forefingers with thumb-tips touching. Measure how far (in centimeters) the roll will stretch without breaking.

Bounce Test - Make a round ball out of your polymer compound and drop it from a height of 30 cm's and measure how far it rebounds when it hits a table top. Measure to the bottom of the ball's bounce. Repeat as often as you need to get a best reading.

Record all your test results and try another form of your homemade polymers.

 

	Slump in cm's	Stretch in cm's	Bounce in cm's
Polymer I
Polymer II
Polymer III