PANI
Polyaniline
Glass Transition (Tg)
—
Melting Point (Tm)
— (decomposes)
Density
1.36 g/cm³
CAS Number
25233-30-1
Recycling Code
None
Category
Functional & Smart
Repeat Unit
–[C₆H₄–NH]ₙ–
The repeating unit is the smallest structural fragment whose repetition builds the whole chain. Subscripts show the relative share of each unit in copolymers.
Key Properties
Unique among conducting polymers: doped reversibly by simple protonic acid without changing the electron count; three oxidation states with distinct colours.
Applications
Anticorrosion coatings, chemical sensors, supercapacitors, EMI shielding.