(i) Polythene is the polymer formed by the addition polymerization of ethene. There are two types of polythenes namely- High density polythene(HDP) and Low density polythene(LDP).
Structure of monomer – Ethene.
(ii) When multiple molecules of vinyl chloride ( is heated in an inert solvent in the presence of dibenzoyl peroxide then PVC is obtained.
Structure of monomer – Vinyl chloride.
(iii) Teflon is prepared by the polymerization of Tetrafluoroethene(PTFE) molecules. It is done so by heating PTFE molecules under high pressure and in presence of ammonium peroxo sulphate [(
Structure of monomer – Tetrafloroethene
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