Vinyl Chloride Polymerization

Dynamic simulation of industrial poly vinyl chloride batch suspension polymerization reactors c.
Vinyl chloride polymerization. A comprehensive reactor model for batch and semi batch proc esses has been developed on the basis of these. Box 472 540 06 thessaloniki greece. Suspension polymerization of vinyl chloride with mixed peroxides 387. Suspension polymerization of vinyl chloride using one and two initiator systems.
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. Chemical and physical methods were used to observe irregular structures such as branching. 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. Pvc is used in the manufacture of numerous products including packaging films and water pipes.
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 with reduced. Natural evolution of hcl from vc occurred in the polymerization. Vinyl chloride is an organohalogen compound that has important industrial applications.
Kiparissides g. Emulsion polymerization accounts for about 12 and bulk polymerization accounts for 8. Polymerization of vinyl chloride have been identified including elemen tary chemical reactions. Polyvinyl chloride is produced by polymerization of the vinyl chloride monomer vcm as shown.
About 13 billion kilograms are produced annually. Achilias and e. Physical phenomena of polyvinylchloride parti cle formation and reactant species distributions in phas s during poly merization. Suspension and emulsion polymerization of vinyl chloride monomer using free radical initiators.
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. The effect of stirring rate on particle size in the suspension polymerization of vinyl chloride 388. 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.
Nlesc rate data were also used to test the applicapility of the rodel. Suspension polymerization of vinyl chloride with a mixture of a suspending agent and a surfactant 385. Vinyl chloride is primarily used to make polyvinyl chloride to manufacture plastics. Polymerization of vinyl chloride vc was studied.
It is a carcinogenic gas that must be handled with special protective procedures.