Tuesday, January 22, 2008


Review points

Nylon 6

It is prepared by heating caprolactum at 523-533 K in an atmosphere of N2 for about 4 hurs.

It is known as Nylon-6 because the monomer caprolactum contains six carbon atoms

Nylon 66

It is obtained by condensation polymerisation of hexamethylene diamine, adipic acid.

hexamethylene diamine H2N(CH2)6NH2

Adipic acid: HOOC-(CH2)4-COOH

As both the monomers have 6 carbon atoms each, the polymer is called Nylon 66.

Nylons are used in the preparation of dress materials.

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