i) Two monomers Hexamethylenediamine [H2N-(CH2)6-NH2] and adipic acid [HOOC-(CH2)4-COOH] combined to form the polymer and a water molecule is removed in this process. Hydrogen(H) is removed from both sides of Hexamethylenediamine and OH group is removed from both sides of adipic acid to give a water molecule.
ii) The monomer is OC-(CH2)5-NH known as Caprolactam. The cyclic structure of the monomer changes to linear to form the polymer, as shown below:
(iii) The monomer is Tetrafluroethene (CF2= CF2), the double bond breaks to form the polymeric chain.
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