Improving the Properties of Conducting Polymers in Self-Doping Variant

Novel self-doped conducting polymers demonstrate improved physical properties, which can be controlled by modifying their structure. A simulation strategy for material properties analysis has been conceived, with help of the 3D HFSS program. Electroactivity of the polymer was the phenomenon of interest, considering that the counterions are covalently bound to the polymer backbone. A comparative analysis has been performed for the group: poly(p-methylpyridinium vinylene) (PMePyV); poly(sodium4-[(2,3dihydrothieno[3,4-b] [1, 4]dioxin-2-yl)methoxy]butane-2sulfonate) (S-PEDOT); poly(9,9-bis(4´-sulfonatobutyl) fluorene-alt-co-1,4-phenylene) (PFP); Poly(4-(Thiophen-3-yl Methyleneamino)benzene Sodium Sulfonate)) (PThSA). The conductivity is increased and the SDCP is stable, in comparison with anion/cations doped variants of similar monomers used for polymerization. In the frequency domain up to 10$^{6}$ Hz, the real part of the effective permittivity values are also higher, meaning more energy stored within the medium, which can be used for actuation. Permittivity imaginary part decreases in magnitude and its frequency peak is narrower, indicating lower dissipation in the material. An increasing of the actuation force of about 12-15 % is expected in these polymer species and losses decrease of ca. 5-7 %.