The molecule \( F_2C = CF_2 \) is a monomer in Teflon (polytetrafluoroethylene, PTFE). Teflon is a polymer formed through the polymerization of tetrafluoroethylene. It is characterized by its non-stick nature and high chemical resistance. Nylon-6, Buna-S (a synthetic rubber), and Glyptol (a synthetic resin) are distinct polymers.