Polytetrafluoroethylene (PTFE / Teflon) from tetrafluoroethylene (n CF2=CF2 → [CF2−CF2]n)

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n CF2=CF2 → [CF2−CF2]n

What each symbol means

SymbolWhat it stands for
nDegree of polymerization
CF2=CF2Tetrafluoroethylene (TFE)

When to use this

Addition (radical) polymerization; highly fluorinated non-stick surface.