Tetracyanocyclopentadienide-Based Stable Poly(aromatic) Anions.

Mustafa Ahmed, Dung T Tran, John Putziger, Zhifan Ke, Ashkan Abtahi, Zhiyang Wang, Ke Chen, Kai Lang, Jianguo Mei

ACS macro letters 2022 Jan 18

filter terms:

Polyelectrolytes, a class of polymer with ionized functional groups in their repeating units, are widely used in various applications. Many ionized groups have been incorporated into polyelectrolytes, but aromatic anions are rarely investigated. Here, we first successfully incorporate a stable tetracyanocyclopentadienide (TCCp) aromatic anion into polynorbornene (PNb)-based electrolytes (PNb-TCCp) through ring-opening metathesis polymerization (ROMP) with controllable molecular weight and low polydispersity. PNb-TCCp shows a high ionic conductivity of 4.5 × 10-5 S/cm in thin films. Due to its highly stable aromatic anion groups and favorable interactions with aromatic cations, it could improve thermal stability of doped conjugated polymers. Pairing with doped poly(3,4-ethylenedioxythiophene) (PEDOT) through salt metathesis, the generated poly ion complex PEDOT:PNb-TCCp retains its conductivity up to 180 °C.

Citation

Mustafa Ahmed, Dung T Tran, John Putziger, Zhifan Ke, Ashkan Abtahi, Zhiyang Wang, Ke Chen, Kai Lang, Jianguo Mei. Tetracyanocyclopentadienide-Based Stable Poly(aromatic) Anions. ACS macro letters. 2022 Jan 18;11(1):72-77