Hybrid Organic-Inorganic Coatings and Films Containing Conducting Polyaniline Nanoparticles

摘要

Hybrid organic-inorganic coatings and free-standing films made from [3-(grycidyloxy)propyl]trimethoxysilane, amino-terminated poly(oxypropylene) (Jeffamine D-230), colloidal polyaniline nanoparticles and, in some cases, colloidal nanosilica were prepared and characterized. HC1 or 4-methylbenzene-l-sulfonic acid were used as catalysts for the sol-gel process and pH tuning, water-propan-2-ol mixture as a solvent. Electrical and mechanical properties and surface morphology of films were studied. The coatings were blue and non-conducting, or green and conducting, depending on preparation conditions. They have a smoother surface than in-situ polymerized polyaniline films.