PEDOT:PSS
Poly(3,4-ethylenedioxythiophene):PSS
Glass Transition (Tg)
—
Melting Point (Tm)
—
Density
~1.0 g/cm³
CAS Number
155090-83-8
Recycling Code
None
Category
Functional & Smart
Repeat Unit
–[C₆H₄O₂S]ₙ⁺ / –[CH₂–CH(C₆H₄SO₃⁻)]ₘ–
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
The most commercially successful conducting polymer: water-dispersible, transparent, with conductivity up to ~1000 S/cm after solvent doping; PSS acts as both dopant and dispersant.
Applications
Transparent electrodes, OLEDs, antistatic layers, bioelectronics.