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Characterization of electrochemically synthesized alkylpyrrole intrinsically conducting polymers
Author(s) -
Costantini Nicola,
Capaccioli, Simone,
Geppi Marco,
Ruggeri, Giacomo
Publication year - 2000
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/(sici)1099-1581(200001)11:1<27::aid-pat934>3.0.co;2-k
Subject(s) - materials science , thermogravimetric analysis , polymer , differential scanning calorimetry , magic angle spinning , thermal stability , propylene carbonate , polymerization , polymer chemistry , conductive polymer , chemical engineering , counterion , fourier transform infrared spectroscopy , electrochemistry , chemistry , nuclear magnetic resonance spectroscopy , organic chemistry , thermodynamics , composite material , electrode , ion , physics , engineering
This work concerns some electrochemical polymerizations of pyrrole derivatives in order to obtain intrinsically conducting polymers: the study was mainly concerned with the electrochemical polymerization of 3‐alkyl substituted pyrroles with different chain lengths (3‐hexylpyrrole, 3‐decylpyrrole, 3‐hexadecylpyrrole). Different experimental conditions were adopted with 3‐alkylpyrroles: different solvents (propylene carbonate, acetonitrile), different counterions (ClO 4 − , BF 4 − , NO 3 − , PF 6 − , TsO − ) and different current densities (0.05, 0.1, 0.2, 0.4 mA/cm 2 ). The synthesized conducting polymers were characterized through Fourier transform infrared spectroscopy, 13 C cross‐polarization magic angle spinning solid‐state nuclear magnetic resonance and electrical conductivity measurements to study the relations connecting the experimental conditions of synthesis with the structure and electrical properties of the polymers. Thermogravimetric analysis, differential scanning calorimetry and isothermal heatings were performed in order to evaluate the polymer's thermal stability. Copyright © 2000 John Wiley & Sons, Ltd.