Question: 70. Which one of the following polymers is prepared by addition polymerisation?
(1) Teflon
(2) Nylon-66
(3) Novolac
(4) Dacron
Answer: Option (1)
Explanation:
Addition polymerisation involves the joining of unsaturated monomers without the elimination of any small molecule.
Teflon is formed by addition polymerisation of tetrafluoroethylene monomers.
Nylon-66 is formed by condensation polymerisation with elimination of water molecules.
Novolac is a condensation polymer formed from phenol and formaldehyde.
Dacron is a condensation polymer formed from ethylene glycol and terephthalic acid.
Hence, the polymer prepared by addition polymerisation is Teflon.