Polymers Of Commercial Importance

Step 1: Understanding fully fluorinated polymers
A fully fluorinated polymer is a polymer where all of its hydrogen atoms are replaced by fluorine atoms. Teflon is an example of such a polymer. It is known for its high chemical resistance and non-stick properties.
Step 2: Evaluate the options

• Option (1): Teflon: Teflon, also known as PTFE (Polytetrafluoroethylene), is a fully fluorinated polymer. It consists entirely of carbon and fluorine atoms.
• Option (2): Neoprene: Neoprene is a type of synthetic rubber but is not fully fluorinated. It contains carbon, hydrogen, and chlorine atoms.
• Option (3): Thiokol: Thiokol is a type of polymer containing sulfur, oxygen, and carbon atoms, but it is not fully fluorinated.
• Option (4): PVC: PVC (Polyvinyl chloride) is a widely used polymer but is not fully fluorinated. It contains chlorine atoms along with carbon and hydrogen.

Step 3: Conclusion
The fully fluorinated polymer among the options is Teflon.
Conclusion:

The fully fluorinated polymer is Teflon.