Question

Which of the following compound is used for production of Nylon-6,6?

• A. Adipic acid
• B. Succinic acid
• C. Malonic acid
• D. Glutaric acid

Hint:

Nylon-6,6 is formed from hexamethylenediamine and adipic acid. Always remember that both monomers contain six carbon atoms, which is why the polymer is called Nylon-6,6.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
Nylon-6,6 is a polyamide copolymer. The "6,6" indicates that both monomers contain six carbon atoms.
Step 2: Formula Application:
The two monomers are: 1. Hexamethylenediamine ($H_2N-(CH_2)_6-NH_2$) - 6 carbons. 2. Adipic acid ($HOOC-(CH_2)_4-COOH$) - 6 carbons.
Step 3: Explanation:
Adipic acid is a dicarboxylic acid with a total of six carbon atoms ($4$ in the chain + $2$ in the carboxyl groups). Condensation polymerization of these two monomers yields Nylon-6,6.
Step 4: Final Answer:
Adipic acid is used for the production of Nylon-6,6.