Polyvinyl chloride is the addition polymer of vinyl chloride, with repeat unit . Its covalently attached chlorine influences intermolecular interactions and processing behavior.
Rigid and flexible commercial forms can differ strongly because of additives and formulation. A material label therefore does not imply that every specimen has the properties of the additive-free polymer.

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Polyvinyl chloride (PVC) is a synthetic plastic polymer made from the polymerization of vinyl chloride monomer (VCM). It is one of the most widely produced synthetic plastic polymers in the world. PVC can be rigid or flexible, depending on the presence of plasticizers and other additives. ### Properties of PVC: - **Durability**: PVC is resistant to environmental degradation, chemicals, and corrosion, making it suitable for a variety of applications.