Polymerization Of Vinyl Chloride To Form Polyvinyl Chloride

See entries 6 and 9 in table 1 1 for the chemical structures.

Polymerization of vinyl chloride to form polyvinyl chloride. Polyvinyl chloride is a white rigid quite brittle solid. Pvc and its copolymers are widely used with production topping 14 billion pounds in the us in 1997. About 80 of production involves suspension polymerization. Pvc is used in the manufacture of numerous products including packaging films and water pipes.

Draw a segment of polyvinyl chloride containing three monomer units connected head to tail. Natural evolution of hcl from vc occurred in the polymerization. This polymerisation reaction proceeds by a free radical mechanism. Polyvinyl chloride is produced in an addition polymerisation reaction using the chloroethene vinyl chloride monomer.

Chemical and physical methods were used to observe irregular structures such as branching double bonds and head to head or tail to tail addition and also to confirm the relation. Vc vc αd 1 vc β βd 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. Pvc vinyl chloride is an organohalogen compound that has important industrial applications. This alkene undergoes addition polymerization to form polyvinyl chloride pvc a polymer used in pipes and many other products.

About 80 of production involves suspension polymerization. Polyvinyl chloride is produced by polymerizationof the vinyl chloridemonomer vcm as shown. Polymerization of vinyl chloride produces poly vinyl chloride of high molar mass at low monomer conversions whereas polymerization of ethylene glycol with terephthalic acid produces poly ethylene terephthalate of high molar mass only at very high conversions of the oh and co 2h groups. When the polymerization process is taking place the monomers are binding with each other to form a one long polymeric chain and at this moment the diffusion.

Additives are used to modify the properties of polyvinyl chloride to make it more useful. Poly vinyl chloride pvc is generally produced by suspension polymerization of the gaseous monomer vinyl chloride. Emulsion polymerizationaccounts for about 12 and bulk polymerizationaccounts for 8. The main polymerization methods include suspension emulsion and bulk mass methods.

A the diffusion mechanism of vinyl chloride monomer vcm particles into polymeric chain of polyvinyl chloride pvc. A copolymer of i an alkyl acrylate or alkyl methacrylate and ii a hydroxyalkyl acrylate or hydroxyalkyl methacrylate is used as a secondary protective colloid in the suspension polymerization. Polymerization of vinyl chloride vc was studied. I polymerization process 2 4 5 6.

When treated with certain catalysts vinyl chloride monomers undergo polymerization and form the larger compound known as polyvinyl chloride or pvc.