Composites of Polyindole nanowires within Silicate and Aluminosilicate hosts with distinct conductive properties

JULIANA M. JUÁREZ; MARCOS B. GÓMEZ COSTA; OSCAR A. ANUNZIATA

IOP Conference Series: Materials Science and Engineering

Institute of Physics Publishing (IOP)

Año: 2016 vol. 137 p. 1 - 7

Nanostructured silicate SBA-15 and aluminosilicate AlSBA-15 were synthesized in order to prepare polyindole composites. The Silica mesoporous materials were prepared by sol-gel method and alumination by post-synthesis technique and analyzed by different methods (XRD, BET, TEM, and FTIR). Polyindole/host composites were prepared by an in situ oxidative polymerization of pre-adsorbed indole, employing Cl3Fe as an oxidant. TG, FTIR, BET, XRD, SEM and TEM were used to characterize the resulting composites. These studies show that after polymerization, the porous structures of the materials are preserved and the Polyindole is found within the porous channels. The composites have an electrical conductivity range between values higher than those of the pure chemically synthesized Polyindole, close to those of the electrical conductivity of pure electrochemically synthesized polymer and lower than those of the pure chemically synthesized polymer, in the order of 10-8 S/cm.