Noun
VCM (plural VCMs)
Initialism of vinyl chloride monomer.
After the polymer has grown by about 10x, the short polymer precipitates inside the droplet of VCM, and polymerization continues with the precipitated, solvent-swollen particles. Source: Internet
As the volume is reduced during the reaction (PVC is denser than VCM), water is continually added to the mixture to maintain the suspension. Source: Internet
Once the reaction has run its course, the resulting PVC slurry is degassed and stripped to remove excess VCM, which is recycled. Source: Internet
Technology for removal of VCM from products has become stringent, commensurate with the associated regulations. Source: Internet
The reaction vessel is pressure tight to contain the VCM. Source: Internet
VCM and water are introduced into the reactor and a polymerization initiator, along with other additives. Source: Internet