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O'Toole, Jim Corliss H.S.
The students will gain an understanding of what polymers are.
List 10 examples of polymers found in your home
The students will gain an understanding of how monomers are combined to
Define ADDITION POLYMERIZATION
" CONDENSATION POLYMERIZATION
The students will gain an understanding of polymer strength.
Materials: hexamethylene diamine; sodium hydroxide; adipyl chloride;
carbon tetrachloride; wood sticks; plastic gloves; safety glasses;
common examples of polymers; child type construction blocks;
Prepare two solutions: (1) 2.32 grams of hexamethylene diamine and
1.6 grams of sodium hydroxide in about 100ml of water.
(2) 3.66 grams of adipyl chloride in about 100ml of carbon
Place adipyl chloride solution at bottom of clean beaker; carefully pour
aqueous layer over this without stirring or mixing; try to avoid
With a stick remove the film which forms between the two layers.
Continue to remove the film as it is formed. When you have pulled out a
nylon fiber of sufficient length, wash it in clean water to remove
excess reagents. [Morgan + Kwolek, J. Chem. Educ. 36 182-184 April 59]
After about 15 min. or when each student has had a turn, then you will
want to explain the PHENOMENA. Be sure to integrate your household
polymer hardware (child type building blocks, common household things
made of polymers, etc...) in a logistically systematized program that
will concretize your explanation of the PHENOMENA.