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

2016 Global Conference on Polymer and Composite Materials

材料科学;化学

Juárez, J.M.^1 ; Costa, M B Gómez^1 ; Anunziata, O.A.^1

Centre for Research in Nanoscience and Nanotechnology (NANOTEC), Córdoba Regional Faculty, National Technological University, Maestro López y Cruz Roja Argentina, Córdoba

5016, Argentina^1

关键词: Conductive properties;    Electrical conductivity;    Electrochemically synthesized polymers;    Nano-structured;    Porous structures;    Silica mesoporous materials;    Situ oxidative polymerization;    Synthesized polymers;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/137/1/012034/pdf
DOI  :  10.1088/1757-899X/137/1/012034

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

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 using post-synthesis technique and analysed by different methods (XRD, BET, TEM, and FTIR). Polyindole/host composites were prepared by in situ oxidative polymerization of pre-adsorbed indole, employing Cl3Fe as oxidant. TG, FTIR, BET, XRD, SEM and TEM were used to characterize the resulting composites. These studies show that the porous structures of the materials are preserved after polymerization, and 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 pure electrochemically synthesized polymer and lower than those of the pure chemically synthesized polymer, in the order of 10-8S/cm.