Vinyl Chloride Polymerization

Nlesc rate data were also used to test the applicapility of the rodel.

Vinyl chloride polymerization.

Polyvinyl chloride is produced by polymerization of the vinyl chloride monomer vcm as shown. When treated with certain catalysts vinyl chloride monomers undergo polymerization and form the larger compound known as polyvinyl chloride or pvc. Suspension polymerization of vinyl chloride with mixed peroxides 387. Vinyl chloride is an organohalogen compound that has important industrial applications.

Natural evolution of hcl from vc occurred in the polymerization. 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. Box 472 540 06 thessaloniki greece. Suspension and emulsion polymerization of vinyl chloride monomer using free radical initiators.

Physical phenomena of polyvinylchloride parti cle formation and reactant species distributions in phas s during poly merization. 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. 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. Chemical and physical methods were used to observe irregular structures such as branching.

Kiparissides g. About 13 billion kilograms are produced annually. Sidiropoulou chemical engineering department and chemical process engineering research institute aristotle university of thessaloniki p o. Suspension polymerization affords particles with average diameters of 100 180 μm whereas emulsion.

Polymerization of vinyl chloride vc was studied. Polymerization of vinyl chloride have been identified including elemen tary chemical reactions. Dynamic simulation of industrial poly vinyl chloride batch suspension polymerization reactors c. Emulsion polymerization accounts for about 12 and bulk polymerization accounts for 8.

Pvc is used in the manufacture of numerous products including packaging films and water pipes. It is a carcinogenic gas that must be handled with special protective procedures. Vinyl chloride is primarily used to make polyvinyl chloride to manufacture plastics. About 80 of production involves suspension polymerization.

Parts i and i i also include a rather extensive review of pvc r tecjmology and the variolls models that have been publ ishcd for i1klss and suspension imlymerizatiqn of vinyl chloride. The effect of stirring rate on particle size in the suspension polymerization of vinyl chloride 388. A comprehensive reactor model for batch and semi batch proc esses has been developed on the basis of these. Suspension polymerization of vinyl chloride with reduced.

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