What are the compounds used to obtain nylon salt?

Question

TestHub · Accepted Answer

Nylon salt, also known as hexamethylenediammonium adipate, is an intermediate formed during the preparation of Nylon-6,6.

It is obtained by the neutralization reaction between a dicarboxylic acid and a diamine. Specifically, adipic acid (a 6-carbon dicarboxylic acid) reacts with hexamethylenediamine (a 6-carbon diamine) to form this salt.

The reaction is:
$H OOC - (C H_{2})_{4} - COO H + H_{2} N - (C H_{2})_{6} - N H_{2} \to [^{-} OOC - (C H_{2})_{4} - CO O^{-}] [^{+} H_{3} N - (C H_{2})_{6} - N H_{3}^{+}]$

Upon heating, nylon salt loses water molecules to undergo condensation polymerization, yielding the polyamide Nylon-6,6.

Answer: Adipic acid and hexamethylenediamine

Chemistry - Polymer Question with Solution | TestHub

Options:

Doubts & Discussion