Optical Properties of Conducting Polymer Poly(O-Toluidine)-DBSA Blended with Polyethylene Oxide

Abstract

Conducting polymer poly(O-toluidine) (POT) doped with dodecyl benzene sulfonic acid was prepared by the chemical polymerization with the help of ammonium persulphate (NH4)2S2O8 as an oxidizing agent. This polymer was blended with different weight ratios (0%, 10%, 15%, 25%, 35%, 45%, 50%) of poly(ethylene oxide) (PEO) to produce nano conducting polyblend POT-DPSA/PEO, prepared by the spin coating method, and deposited on a glass substrate. The surface morphology was studied by scanning electron microscope. The optical properties of a prepared film was studied from the absorbance spectra at wavelengths 300-1100 nm. The analysis of optical measurement data shows the direct transition with the energy gap decreasing from 2.80 eV to 2.25 eV, as the content of PEO increases from 0% to 50%. K e y w o r d s: conducting polyblend, poly(O-toluidine), polyethylene oxide, optical properties.

Excellent Anti-bacterial Activity of Poly(o-toluidine)-DBSA/ ZnO Nanocomposite

“…5.4 gm organic acid Dodecylbenzene sulfonate (DBSA) (Sigma Aldrich, USA) was used for doping POT. The POT to ammonium persulphate mixing in similar volume ratios is achieved by continuous stirring using a magnetic stirrer for 24 h. A green colored gel was obtained (Ahmad, Riaz et al 2012, Khan and Baig 2013, Thbayh DK 2018 which was filtered, and repeatedly washed with distilled water to remove the excess of acid and impurities then finally dried at 70oC for 6 h in an oven. The final product was a green powder (POT-DBSA).…”

Structure and Electrical Properties of ZnO Nanoparticles Blend with POT-DBSA

“…The polymerization of o-toluidine monomer was carried out at 0-5 •C by the addition of 1.7 gm of o-toluidine(Fisher scientific company, USA)into 1M of HCl(Fluka company, USA) contain 5.8 gm of DBSA(Sigma Aldrich, USA) with continuous stirring for 30min. APS (5.2 gm)(NH4)2S2O8(Sigma Aldrich, USA), as an initiator dissolved in 1M of HCl was slowly poured into the polymerization bath through 30min and polymerization solution was left for 24 h with continuous stirring, a green colour edge was obtained [23][24][25]. The POT precipitated was filtrated and washed with excess amount of distilled water to remove excess of impurities.…”