Polymer and Hydrogen Bonds

Procedure for the Formation of a "Glob"

Materials

• One 120 ml bottle of white glue ("Elmer's")
• 4% sodium borate solution
• 300 ml plastic cup
• Plastic stirring stick
• 50 ml graduated beaker
• 10 ml graduated cylinder
• Paper towels

Preparation
Pour 10 ml of white glue into the beaker.

Measure 2.5 ml of sodium borate solution in a graduated cylinder.

While stirring, add the sodium borate into the beaker.

Wash off any excess white glue. Remove the "glob" from the beaker and put it on a paper towel.

Squeeze the material inside the paper towel in order to absorb the excess water.

Hazards
Wear protective eyewear. Avoid getting the glob on the table, floor, or on your clothes. Materials can irritate the eyes.