Vinyl Chloride Addition Polymerization

Natural evolution of hcl from vc occurred in the polymerization.

Vinyl chloride addition polymerization.

Free radicals can be formed by a number of different mechanisms usually involving separate initiator molecules. Vinyl chloride is primarily used to make polyvinyl chloride to manufacture plastics. The final product of the polymerization process is pvc in either a flake or pellet form. From its flake or pellet form pvc is sold to companies that heat and mold the pvc into end products such as pvc pipe and bottles.

Under pressure the gaseous chloroethene molecules are forced closer together to form a liquid. The type of reaction has many manifestations but traditionally vinyl monomers are used. When treated with certain catalysts vinyl chloride monomers undergo polymerization and form the larger compound known as polyvinyl chloride or pvc. Anionic addition polymerization is a form of chain growth polymerization or addition polymerization that involves the polymerization of monomers initiated with anions.

It is a clear colorless liquid with a sweet fruity smell. About 80 of production involves suspension polymerization. Vinyl chloride is a chlorinated hydrocarbon occurring as a colorless highly flammable gas with a mild sweet odor that may emit toxic fumes of carbon dioxide carbon monoxide hydrogen chloride and phosgene when heated to decomposition. Polyvinyl chloride is produced in an addition polymerisation reaction from chloroethene vinyl chloride monomers.

Polyvinyl chloride is produced by polymerization of the vinyl chloride monomer vcm as shown. Pvc is used in the manufacture of numerous products including packaging films and water pipes. Polymerization of vinyl chloride vc was studied. The monomer chloroethene or vinyl chloride has a boiling point of 14 o c 259k so it is a gas at room temperature and pressure.

Following its generation the initiating free radical adds nonradical monomer units thereby growing the polymer chain. Vc vc α d 1 vc β β d 2 and vc d 3 were used to study the reactivities of the hydrogen atoms in the polymerization and the β hydrogen atoms contributed to the chain transfer. It is very flammable and may be ignited by heat sparks or flames. Vinyl acetate is an industrial chemical that is produced in large amounts in the united states.

Emulsion polymerization accounts for about 12 and bulk polymerization accounts for 8. Free radical polymerization frp is a method of polymerization by which a polymer forms by the successive addition of free radical building blocks. Vinyl acetate is used to make other industrial chemicals.