Question

Identify the monomers for Nylon-6,6.

• A. Adipic acid and Hexamethylenediamine
• B. Ethylene glycol and Terephthalic acid
• C. Styrene
• D. Caprolactam

Hint:

In Nylon-6,6, the first number represents the number of carbons in the diamine, and the second number represents the number of carbons in the dicarboxylic acid.

Answer 1

The Correct Option is A

Concept: Nylon-6,6 is a condensation polymer formed by the polymerization of a dicarboxylic acid and a diamine. During the reaction, molecules combine with the elimination of small molecules such as water.

Step 1: Identify the monomers involved in Nylon-6,6 formation. Nylon-6,6 is produced by the reaction between:
• Adipic acid \((HOOC-(CH_2)_4-COOH)\)
• Hexamethylenediamine \((H_2N-(CH_2)_6-NH_2)\)

Step 2: Understand the naming of Nylon-6,6. The numbers \(6,6\) indicate that both monomers contain six carbon atoms in their chains.

Step 3: Formation of the polymer. These monomers undergo condensation polymerization forming amide linkages \((-CONH-)\), producing Nylon-6,6.