A new soluble conducting polymer and its electrochromic devices

Gamma rays as an innovative tool for synthesizing conducting copolymers with improved properties

Radiation chemistry was used as an alternative methodology for synthesizing conducting copolymers in water and dichloromethane.

Polypyrrole derivatives for electrochromic applications

This review provides a comprehensive assessment of recent progress in polypyrrole derivatives which are specially designed for electrochromic applications.

Biaryl crosslinkers. I. Crosslinking of a bisazidobiaryl with poly(3-hexylthiophene)

A new biaryl-based bisazide has been used to crosslink poly(3-hexylthiophene), a conducting polymer useful for organic electronics. Crosslinking was monitored using infrared spectroscopy and film morphology was studied using scanning electron microscopy. Hole mobility studies of the devices prepared from pristine and crosslinked polymer show an increase in hole mobility of one order of magnitude for the latter devices.

On the stabilization of conducting pernigraniline salt by the synthesis and oxidation of polyaniline in hydrophobic ionic liquids

The electrochemical polymerization of aniline in a hydrophobic room-temperature ionic liquid and the spectroelectrochemical characterization of the formed film are presented. The polymerization occurs without the presence of acid in 1-butyl-2,3-dimethylimidazolium bis(trifluoromethanesulfonyl)imide (BMMITFSI), leading to a very stable electroactive material where no degradation was observed even at high applied potentials. Both in situ UV-Vis and Raman spectroscopic studies provided evidence for the stabilization of pernigraniline salt at high oxidation potentials and that this polyaniline state is the conducting form, as was corroborated by in situ resistance measurements. These data are indicative that low conductivity is not an intrinsic property of pernigraniline salt and this point must be reconsidered.