Final answer:
The polymer used as a coating in non-stick cookware and electric irons is Teflon.
Step-by-step explanation:
The polymer used as a coating in modern non-stick cookware and the flat end of an electric iron is Teflon (polytetrafluoroethylene, or PTFE).
Teflon is a synthetic fluoropolymer that is exceptionally inert to chemicals and solvents. Its non-stick properties make it ideal for use in cooking ware. It is also used in other anti-stick applications, including personal care products.
Teflon is the best-known brand of PTFE-based formulas, discovered by DuPont in 1938 and currently produced by Chemours.