Two flexible carbon cloth electrodes (area = 2 cm²) were coated with a slurry of IPZZ‑266 (80 wt %), PVDF (10 wt %), and carbon black (10 wt %) in N‑MP (N‑methyl‑2‑pyrrolidone). After drying at 80 °C for 12 h, the electrodes were laminated with a 30 µm thick film of neat IPZZ‑266 sandwiched between them, sealed with a thermoplastic polyurethane (TPU) laminate.
exhibited a glass transition (T_g) at 112 °C, a modest increase relative to pristine P3HT (≈ 78 °C), consistent with the stiffening effect of ionic side‑chains. IPZZ-266
IPZZ‑266 is a newly conceived poly(ionic‑liquid) (PIL) architecture that integrates imidazolium‑based ionic liquid monomers with a conjugated polythiophene backbone. This hybrid design aims to combine high ionic conductivity with intrinsic electronic charge transport, delivering a material suitable for flexible energy‑storage and sensing platforms. Here we report the rational design, step‑wise synthesis, and comprehensive physicochemical characterization of IPZZ‑266. Spectroscopic (¹H, ¹³C NMR, FT‑IR), chromatographic (GPC), and mass‑spectrometric analyses confirm the target molecular structure and narrow dispersity (Đ ≈ 1.15). Thermal analysis (TGA/DSC) reveals a decomposition temperature of 352 °C and a glass transition at 112 °C. Broadband dielectric spectroscopy shows an ionic conductivity of 3.1 × 10⁻³ S cm⁻¹ at 80 °C, while four‑point probe measurements indicate an electronic conductivity of 1.8 × 10⁻² S cm⁻¹ under ambient conditions. In situ operando Raman spectroscopy demonstrates reversible ion‑pair reorganization during electrochemical cycling. Prototype solid‑state supercapacitors employing IPZZ‑266 as both electrolyte and electrode binder deliver a specific capacitance of 215 F g⁻¹ and retain >93 % capacity after 10 000 charge‑discharge cycles. The material also exhibits a pressure‑sensitive resistance change (gauge factor ≈ 12.6) enabling strain‑sensing applications. Our findings position IPZZ‑266 as a versatile, high‑performance, and scalable conductive polymer for next‑generation flexible electronics. Two flexible carbon cloth electrodes (area = 2