question_answer

Which of the following is not a copolymer?

A)  Nylon 6      

B)  Nylon 6, 10

C)  Nomex        

D)  Dacron

Correct Answer: A

Solution :

Nylon 6 is a single monomer, i.e., \[-[\overset{\begin{smallmatrix}  O \\  || \end{smallmatrix}}{\mathop{C}}\,-NH-{{(C{{H}_{2}})}_{5}}-]\] Nylon 6, 10 is \[-{{[CO-{{(C{{H}_{2}})}_{8}}-CO-NH-{{(C{{H}_{2}})}_{6}}-NH-]}_{n}}\] It is a polymer Dacron