Vinyl Chloride Polymerization

Suspension polymerization of vinyl chloride with a mixture of a suspending agent and a surfactant 385.

Vinyl chloride polymerization.

Polymerization of vinyl chloride have been identified including elemen tary chemical reactions. 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. Physical phenomena of polyvinylchloride parti cle formation and reactant species distributions in phas s during poly merization. It is a carcinogenic gas that must be handled with special protective procedures.

Achilias and e. Kiparissides g. Emulsion polymerization accounts for about 12 and bulk polymerization accounts for 8. Vinyl chloride is primarily used to make polyvinyl chloride to manufacture plastics.

Suspension polymerization affords particles with average diameters of 100 180 μm whereas emulsion. Sidiropoulou chemical engineering department and chemical process engineering research institute aristotle university of thessaloniki p o. A comprehensive reactor model for batch and semi batch proc esses has been developed on the basis of these. 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.

Box 472 540 06 thessaloniki greece. Pvc is used in the manufacture of numerous products including packaging films and water pipes. About 80 of production involves suspension polymerization. Dynamic simulation of industrial poly vinyl chloride batch suspension polymerization reactors c.

Polyvinyl chloride is produced by polymerization of the vinyl chloride monomer vcm as shown. About 13 billion kilograms are produced annually. Vinyl chloride is an organohalogen compound that has important industrial applications. Suspension polymerization of vinyl chloride with reduced.

When treated with certain catalysts vinyl chloride monomers undergo polymerization and form the larger compound known as polyvinyl chloride or pvc. 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 ch 2 chcl is most often obtained by reacting ethylene with oxygen and hydrogen chloride over a copper catalyst. Suspension polymerization of vinyl chloride using one and two initiator systems.

The effect of stirring rate on particle size in the suspension polymerization of vinyl chloride 388. Polymerization of vinyl chloride vc was studied. Natural evolution of hcl from vc occurred in the polymerization. Suspension polymerization of vinyl chloride with mixed peroxides 387.

Suspension and emulsion polymerization of vinyl chloride monomer using free radical initiators.