Identify Teflon: which description correctly names this widely used fluoropolymer?

Introduction / Context:
Teflon is a well-known trade name for a fluorinated polymer famous for its low surface energy, chemical inertness, and high temperature resistance.

Given Data / Assumptions:

• Teflon corresponds to PTFE.
• PTFE is an organic polymer consisting of carbon–carbon backbone fully fluorinated.
• Applications include non-stick coatings, seals, and chemical service linings.

Concept / Approach:
PTFE’s repeat unit is –CF2–CF2– obtained by addition polymerisation of tetrafluoroethylene. It is not a phenolic resin, not an inorganic polymer, and certainly not a monomer.

Step-by-Step Solution:
Map Teflon → PTFE.Eliminate incorrect classes.Select PTFE.

Verification / Alternative check:
Material datasheets and standards list PTFE under fluoropolymers with extremely low friction coefficients.

Why Other Options Are Wrong:
Phenolic resin is a different thermoset; “inorganic polymer” does not fit carbon-based PTFE; a monomer is a single small molecule, not Teflon.

Common Pitfalls:
Confusing PTFE with PFA or FEP; all are fluoropolymers but have distinct processing windows.

Final Answer:
Polytetrafluoroethylene (PTFE)