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Which one of the following polymers is prepared by condensation polymerisation?
A
Teflon
B
Natural rubber
C
Styrene
D
Nylon-66
Detailed Solution
In condensation polymerisation, bifunctional monomers join with the elimination of small molecules such as water.
Nylon-66 is a copolymer of adipic acid (6 carbon atoms) and hexamethylenediamine (6 carbon atoms), formed with the loss of water molecules.
$n\,HOOC(CH_2)_4COOH + n\,H_2N(CH_2)_6NH_2 \rightarrow [-CO-(CH_2)_4-CO-NH-(CH_2)_6-NH-]_n + 2n\,H_2O$
It is a polyamide with high tenacity and elasticity. It is resistant to abrasion and is used for the reinforcement of rubber tyres and in the manufacture of parachutes, safety belts, carpets and fabrics.
Teflon is an addition polymer of tetrafluoroethene, and natural rubber is an addition polymer of isoprene.
Styrene is a monomer; its polymer, polystyrene, is also an addition polymer.
So the polymer prepared by condensation polymerisation is Nylon-66.
Nylon-66 is a copolymer of adipic acid (6 carbon atoms) and hexamethylenediamine (6 carbon atoms), formed with the loss of water molecules.
$n\,HOOC(CH_2)_4COOH + n\,H_2N(CH_2)_6NH_2 \rightarrow [-CO-(CH_2)_4-CO-NH-(CH_2)_6-NH-]_n + 2n\,H_2O$
It is a polyamide with high tenacity and elasticity. It is resistant to abrasion and is used for the reinforcement of rubber tyres and in the manufacture of parachutes, safety belts, carpets and fabrics.
Teflon is an addition polymer of tetrafluoroethene, and natural rubber is an addition polymer of isoprene.
Styrene is a monomer; its polymer, polystyrene, is also an addition polymer.
So the polymer prepared by condensation polymerisation is Nylon-66.