Hassan Namazi - Research Laboratory of Dendrimers and Biopolymers, Department of Organic Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran,
Roya Kabiri - Research Laboratory of Dendrimers and Biopolymers, Department of Organic Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran,
Abolfazel Heydari - Research Laboratory of Dendrimers and Biopolymers, Department of Organic Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran,
Mahrokh Bagershirodi - Research Laboratory of Dendrimers and Biopolymers, Department of Organic Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran,

In the wake of increasing pollution and depleting of traditional energy resource, the development of renewable energy production and hybrid electric vehicles with low CO2emission have been attracting much attention since the end of last century [1]. Cellulose acetate is renewable source-basedbiodegradable polymer with excellent properties has been used for the application in different areas such as fibers, films, laminates, adhesive substance, coating, plastic products andetc. [2]. Graphene oxide (GO), the oxidized state of graphene, has attracted a great deal of attention, due to its excellentthermal, electric and mechanical properties. The large surface to volume ratio of graphene oxide nanosheets renders it as anattractive substrate material when compounded with inorganic particles and polymers. But the low electrical conductivity and acidic groups of GO are the disadvantages in any potentaialapplications [3]. Therefore, using polyaniline which is considered as one of the most promising conducting polymersdue to its unique acid-based doping–dedoping process can solve low electrical conductivity of GO [4]. In this investigation we prepared novel electroactive,biocompatible, flexible and transparent composites of NCA/GO/PANi with excellent tensile strength, good conductivity and thermal properties. The composites werecharacterized using FT-IR spectroscopy, UV-Vis spectroscopy, tensile strength analysis test, TGA, SEM and Cyclic voltammetry.