- PVC (Polyvinyl chloride)
Polyvinyl chloride, (IUPAC Poly(chloroethanediyl)) commonly abbreviated PVC, is a thermoplastic polymer. It is a vinyl polymer consisting of vinyl groups (ethenyls) that are bound to chlorine.
It can be made softer and more flexible by the addition of plasticizers, the most widely used being phthalates.
Source: http://en.wikipedia.org/wiki/Polyvinyl_chloride
