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Question: When condensation product of hexamethylenediamine and adipic acid is heated to \(553K(80^{o}C)\) in ...

When condensation product of hexamethylenediamine and adipic acid is heated to 553K(80oC)553K(80^{o}C) in an atmosphere of nitrogen for about 4-5 hours, the product obtained is

A

Solid polymer of nylon 66

B

Liquid polymer of nylon 66

C

Gaseous polymer of nylon 66

D

Liquid polymer of nylon 6

Answer

Liquid polymer of nylon 66

Explanation

Solution

The condensation polymerisation of hexamethylene diamine and adipic acid is done in solution form by interface technique. In this liquid nylon polymer is obtained.

n.H2N−(CH2)6−NH2n.H_{2}N - (CH_{2})_{6} - NH_{2}

nHOOC−(CH2)4−COOH→Polymerisation−nH2OnHOOC - (CH_{2})_{4} - COOH\underset{- nH_{2}O}{\overset{\quad\text{Polymerisation}\quad}{\rightarrow}}

[−HN−(CH2)6−NHCONylon−(CH2)4−CO−]n\lbrack - HN - (CH_{2})_{6} - \underset{\text{Nylon}}{NHCO} - (CH_{2})_{4} - CO - \rbrack_{n}