SYNTHESIS OF A DONOR-ACCEPTOR PORPHYRIN BASED DENDRIMERIC POLYMER AND ITS APPLICATION AS ELECTRODE MATERIAL IN SUPERCAPACITORS

DURANTINI, JAVIER E.; HEREDIA, DANIEL A; SOLIS, CLAUDIA; MACOR, LORENA; MANGIONE, MARÍA I; MORALES, G; DURANTINI, EDGARDO N.; OTERO LUIS A; GERVALDO, MIGUEL

Buenos Aires

Simposio; Simposio Argentino de Polímeros; 2019

UTN - Regional Buenos Aires

The synthesis, characterization and application of π-conjugated porous conducting polymers are of outmost importance in the development of organic-based functional materials. The formation of three-dimensional networks of covalent linked and conjugated building blocks allows to obtain an exceptional class of material, which possess characteristics that are rarely obtained in other materials. Due to their open structure and high specific area, that allows an appropriate diffusion and adequate interaction with other substances, π-conjugated porous conducting polymers have been applied in the development of sensors, catalytic materials, light absorbers, and energy storage devices such as batteries and supercapacitors.In this work we report the electrochemical characterization of a hyperbranched polymeric film formed by a fully conjugated dendrimeric porphyrin. The polymer possess electronic properties that confer to the material the capability for their application in energy storage devices as a supercapacitive material. Specific capacitances as high as 254 F/g were measured in non-optimized systems. This property is based in the pseudocapacitance generated by the reversible redox processes that can be induced in the polymer. In the Zn (II) porphyrin monomer the chromophore was modified by four fully π-conjugated side-branches. The branches have 2,3,5,6-tetraflourphenyl fused to 1,2,3-triazole moieties and triphenyl amine fused to two carbazole (CBZ) residues. Both CBZ in each arm also can undergo the well-known electrochemical initiated radical coupling that promotes the formation of a hyperbranched open fully conjugated structure.