Vinyl Chloride Polymerization

Kiparissides g.

Vinyl chloride polymerization.

Suspension polymerization affords particles with average diameters of 100 180 μm whereas emulsion. 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. Suspension polymerization of vinyl chloride with mixed peroxides 387.

Due to the hazardous nature of vinyl chloride to human health there are no end products that use vinyl chloride in its monomer form. It is a carcinogenic gas that must be handled with special protective procedures. Sidiropoulou chemical engineering department and chemical process engineering research institute aristotle university of thessaloniki p o. Dynamic simulation of industrial poly vinyl chloride batch suspension polymerization reactors c.

Vinyl chloride ch 2 chcl is most often obtained by reacting ethylene with oxygen and hydrogen chloride over a copper catalyst. Vinyl chloride liquid is fed to polymerization reactors where it is. Vinyl chloride is an organohalogen compound that has important industrial applications. The effect of stirring rate on particle size in the suspension polymerization of vinyl chloride 388.

Polyvinyl chloride pvc is very stable storable and nowhere near as acutely toxic as the vinyl chloride monomer vcm. When treated with certain catalysts vinyl chloride monomers undergo polymerization and form the larger compound known as polyvinyl chloride or pvc. Achilias and e. Vinyl chloride is primarily used to make polyvinyl chloride to manufacture plastics.

Pvc is used in the manufacture of numerous products including packaging films and water pipes. About 80 of production involves suspension polymerization. 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. Box 472 540 06 thessaloniki greece.

Emulsion polymerization accounts for about 12 and bulk polymerization accounts for 8. Suspension and emulsion polymerization of vinyl chloride monomer using free radical initiators. Suspension polymerization of vinyl chloride using one and two initiator systems. Suspension polymerization of vinyl chloride with a mixture of a suspending agent and a surfactant 385.

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. Natural evolution of hcl from vc occurred in the polymerization. Polyvinyl chloride is produced by polymerization of the vinyl chloride monomer vcm as shown. Nlesc rate data were also used to test the applicapility of the rodel.

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