Question 1
Provide the structure of a region of the polymer that is produced when isocyanate, shown below, is treated with 1,4-butanediol.


◦ I
◦ II
◦ III
◦ IV
◦ V
Question 2
What is the polymer that is used in bullet-proof vests?
◦ Nylon 6
◦ Teflon
◦ Kevlar
◦ Lexan
◦ Nylon 6,6