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$[NH(CH_2)_6NHCO(CH_2)_4CO]_n$ is a :-
A
Copolymer
B
Addition polymer
C
Thermosetting polymer
D
Homopolymer
Detailed Solution
The given polymer is Nylon-6,6.
It is formed from two different monomers: hexamethylenediamine, $H_2N(CH_2)_6NH_2$, and adipic acid, $HOOC(CH_2)_4COOH$.
$n\,H_2N(CH_2)_6NH_2 + n\,HOOC(CH_2)_4COOH \rightarrow [NH(CH_2)_6NHCO(CH_2)_4CO]_n + 2n\,H_2O$
A polymer made from two or more different monomers is called a copolymer; a homopolymer is made from only one kind of monomer.
It is formed with the loss of water molecules, so it is a condensation polymer, not an addition polymer.
It is a linear polyamide that softens on heating, i.e. a thermoplastic fibre, not a thermosetting polymer.
So the polymer is a copolymer.
It is formed from two different monomers: hexamethylenediamine, $H_2N(CH_2)_6NH_2$, and adipic acid, $HOOC(CH_2)_4COOH$.
$n\,H_2N(CH_2)_6NH_2 + n\,HOOC(CH_2)_4COOH \rightarrow [NH(CH_2)_6NHCO(CH_2)_4CO]_n + 2n\,H_2O$
A polymer made from two or more different monomers is called a copolymer; a homopolymer is made from only one kind of monomer.
It is formed with the loss of water molecules, so it is a condensation polymer, not an addition polymer.
It is a linear polyamide that softens on heating, i.e. a thermoplastic fibre, not a thermosetting polymer.
So the polymer is a copolymer.