= Polyvinyl chloride
{title2=$[-\mathrm{CH_2-CHCl}-]_n$}
= PVC
{c}
{synonym}
<Polyvinyl chloride> is the addition polymer of vinyl chloride, with repeat unit $\mathrm{-CH_2-CHCl-}$. 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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