Characterization of electrochemically synthesized alkylpyrrole intrinsically conducting polymers

This work concerns some electrochemical polymerizations of pyrrole derivati ves in order to obtain intrinsically connecting polymers: the study was mai nly concerned with the electrochemical polymerization of 3-alkyl substitute d pyrroles with different chain lengths (3-hexylpyrrole, 3-decylpyrrole, 3- hexadecylpyrrole). Different experimental conditions were adopted with 3-al kylpyrroles: different solvents (propylene carbonate, acetonitrile), differ ent counterions (ClO4-, BF4-, NO3,- PF6-, TsO-) and different current densi ties (0.05, 0.1, 0.2, 0.4 mA/cm(2)). The synthesized conducting polymers we re characterized through Fourier transform infrared spectroscopy, C-13 cros s-polarization magic angle spin-spectroscopy solid-state nuclear magnetic r esonance and electrical conductivity measurements to study the relations co nnecting the experimental conditions of synthesis with the structure and el ectrical properties of the polymers. Thermogravimetric analysis, differenti al scanning calorimetry and isothermal heatings were performed in order to evaluate the polymer's thermal stability. Copyright (C) 2000 John Wiley & S ons, Ltd.