NEET BIOLOGY

Detailed explanation-1: -Polyvinyl chloride is prepared by addition polymerisation in which monomers are added in a chain. Vinyl chloride is treated with peracid under pressure and we get polyvinyl chloride (PVC). Additional Information: There are two forms of PVC: flexible PVC and rigid PVC, mainly rigid PVC is used.

Detailed explanation-2: -The electrolysis of salt water produces chlorine. The chlorine is then combined with ethylene that has been obtained from oil. The resulting element is ethylene dichloride, which is converted at very high temperatures to vinyl chloride monomer. These monomer molecules are polymerized forming polyvinyl chloride resin.

Detailed explanation-3: -Polyvinyl chloride is produced by polymerization of the vinyl chloride monomer (VCM), as shown. About 80% of production involves suspension polymerization. Emulsion polymerization accounts for about 12%, and bulk polymerization accounts for 8%.

Detailed explanation-4: -Chloroethene (vinyl chloride) undergoes addition polymerisation to form poly(chloroethene) which is more commonly known by the initials of its old name, poly-vinyl chloride (PVC). Poly(chloroethene) or PVC is a fairly strong material due to considerable intermolecular forces produced by the polar C – Cl bond.