Studies on Electrochemical, Optical and Electrical Conductivity of Conducting Composite of o-Anisidine, o-Toluidine and Their Co-polymer

Abstract

A conducting composite of poly(o-anisidine), poly(o-toluidine) and poly(o-anisidine-co-o-toluidine) using incorporation of TiO 2 and SiO 2 was prepared by electrochemical polymerization. The films were electropolymerized in solution containing 0.1 M monomer(s), 1 M sulphuric acid as supporting electrolyte and 10 −5 M TiO 2 and SiO 2 by applying a sequential linear potential scan rate of 50 mV/s between −0.2 and 1.0 V versus an Ag/AgCl electrode. The characterization of the composites was done by cyclic voltametry, UV-Vis spectroscopy, electrical conductivity and thermogravimetric analysis. It is observed that the UV-Vis peaks appear in the region of the conducting emerladine salt (ES) phase. Overall, the polymers prepared using TiO 2 have higher conductivity than SiO 2 , with poly(o-toluidine)-TiO 2 conducting composite having the highest conductivivty. The composite does not lose its colour at higher temperature and, hence, can be utilized as conductive pigments required for anti-electrostatic applications.

Nonlinear optical measurements of conducting copolymers of aniline under CW laser excitation

“…A unique shoulder is observed in all the copolymers at 405, 415, 440 nm and 402, 412, 405 nm which is due to polaron-p transition [18]. The observed absorption bands are in well agreement with the reported literatures [18][19][20][21][22][23].…”

Poly(4-Chloromethyl Styrene-g-4-Vinylpyridine)/TiO2 Thin Films as Templates for the Synthesis of Polypyrrole in the Nanometer-Sized Domain

“…The most important physical properties of conductive polymers are electrical conductivity properties [38][39][40]. The electrical resistivity (R) of the test samples, prepared as described in Section 2, was measured at room temperature and then converted to volume specific resistivity (ρ) using the equation R = ρL/A.…”

Toward design and measurement of electrical conductivity and thermal properties of silver nanoparticle embedded poly(o‐anisidine) molybdophosphate nanocomposite and its application as microbiosensor

“…Nanocomposite have been greatly developed in the past few decades [1][2][3][4] with inorganic and organic components because inorganic components include zeolite [5], layered structures [6,7], and sometimes one dimensional polymer [8] while the organic one could be small organic molecules, organometallics or organic polymers [9,10]. A composite have attracted wide attention because of their potential to combine desirable properties of different scale building blocks to improve mechanical, optical, electronic, magnetic sensing, and electrical properties [11][12][13][14][15][16][17][18].…”