Polyvinyl Chloride Vinyl Chloride

18 as shown in figure 7 6 vinyl chloride is a relatively simple compound.

Polyvinyl chloride vinyl chloride.

Vinyl also called polyvinyl chloride or pvc is a plastic that resists water absorption and withstands exposure to sunlight and ozone. Pvc is used to make a variety of plastic products including pipes wire and cable coatings and packaging materials. Polyvinyl chloride pvc is an important plastic resin for construction pipe and tubing siding and other uses. Vinyl chloride is an alkene derivative containing a substituted chlorine atom instead of a hydrogen atom.

Pvc vinyl chloride is an organohalogen compound that has important industrial applications. The mutagenicity of this liver carcinogen is dependent on metabolic activation by cyp450 and detoxification is mediated by meh. Pvc is used in the manufacture of numerous products including packaging films and water pipes. Vinyl chloride is used primarily to make polyvinyl chloride pvc.

The recognition of an excess of a rare liver cancer hepatic angiosarcoma at facilities throughout the world. Pvc is the world s third most widely produced synthetic plastic polymer after polyethylene and polypropylene about 40 million tons of pvc are produced each year. Polyvinyl chloride denoted as pvc is a synthetic polymer produced by the monomer vinyl chloride. It s often used for weather stripping and sealing applications.

Miller a teirstein as chuang m selikoff ij warshaw r. Vinyl chloride is an organochloride with the formula h 2 c chcl that is also called vinyl chloride monomer vcm or chloroethene this colorless compound is an important industrial chemical chiefly used to produce the polymer polyvinyl chloride pvc. When treated with certain catalysts vinyl chloride monomers undergo polymerization and form the larger compound known as polyvinyl chloride or pvc. Pvc comes in two basic forms.

Economical versatile polyvinyl chloride pvc or vinyl is used in a variety of applications in the building and construction health care electronics automobile and other sectors in products ranging from piping and siding blood bags and tubing to wire and cable insulation windshield system components and more. Changes in pulmonary function in workers exposed to vinyl chloride and polyvinyl chloride. About 13 billion kilograms are produced annually. Ann n y acad sci.

It does not occur naturally and must be produced industrially for its commercial uses. Rigid sometimes abbreviated as rpvc and flexible. Lilis r anderson h nicholson wj daum s fischbein as selikoff ij. Exposures to vinyl chloride monomer during the early years of production resulted in an important sentinel health event.

In the production of pvc an addition polymerization takes place by arranging the monomers in head to tail fashion. Vinyl chloride is the starting material for the production of polyvinyl chloride used in the fabrication of products such as pvc pipe. Prevalence of disease among vinyl chloride and polyvinyl chloride workers. This is a linear polymer.