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The characterization of polyaniline and polypyrrole composites by pyrolysis mass spectrometry
Author(s) -
Hacaloglu Jale,
Tezal Feride,
Kücükyavuz Zühal
Publication year - 2009
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.30168
Subject(s) - polypyrrole , polyaniline , materials science , copolymer , conductive polymer , polymerization , composite material , polymer chemistry , coating , polymer , pyrrole , chemical engineering , electrochemistry , electrode , chemistry , organic chemistry , engineering
In this work, direct insertion probe pyrolysis mass spectrometry technique was applied to investigate the thermal and structural characteristics of electrochemically prepared polyaniline (PANI), polypyrrole (PPy), and their composites/copolymers synthesized either by electrochemical polymerization of pyrrole on PANI‐coated electrode (PANI/PPy) or by coating PANI on PPy (PPy/PANI) in H 2 SO 4 solutions. It has been determined that the polymer first coated on the electrode degraded to a certain extent during the polymerization of the second. The extent of degradation was greater for PPy and increased with the increase in acid concentration. On the other hand, the detection of mixed dimers confirmed copolymer formation. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009