Acrylonitrile (CH\(_2\)=CH–CN) undergoes addition polymerization to form the polymer polyacrylonitrile (PAN). PAN is widely used in textile and plastic industries and is also a precursor for carbon fiber production.
- PVC is formed from vinyl chloride (CH\(_2\)=CHCl).
- Teflon is formed from tetrafluoroethylene (CF\(_2\)=CF\(_2\)).
- Nylon-6 is formed from caprolactam, not acrylonitrile.