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Conducting composites of poly( N ‐vinylcarbazole), polypyrrole, and polyaniline with 13X‐zeolite
Author(s) -
Maity Arjun,
Ballav Nirmalya,
Biswas Mukul
Publication year - 2006
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.23982
Subject(s) - zeolite , materials science , thermogravimetric analysis , polypyrrole , polyaniline , polymerization , conductive polymer , composite material , composite number , polymer , fourier transform infrared spectroscopy , polymer chemistry , chemical engineering , chemistry , catalysis , organic chemistry , engineering
N ‐vinylcarbazole (NVC) was polymerized by 13X zeolite alone in melt (65°C) or in toluene (110°C) and a poly( N ‐vinylcarbazole) (PNVC)‐13X composite was isolated. Composites of polypyrrole (PPY) and polyaniline(PANI) with 13X zeolite were prepared via polymerization of the respective monomers in the presence of dispersion of 13X zeolite in water (CuCl 2 oxidant) and in CHCl 3 (FeCl 3 oxidant) at an ambient temperature. The composites were characterized by Fourier transform infrared analyses. Scanning electron microscopic analyses of various composites indicated the formation of lumpy aggregates of irregular sizes distinct from the morphology of unmodified 13X zeolite. X‐ray diffraction analysis revealed some typical differences between the various composites, depending upon the nature of the polymer incorporated. Thermogravimetric analyses revealed the stability order as: 13X‐zeolite > polymer‐13X‐zeolite > polymer. PNVC‐13X composite was essentially a nonconductor, while PPY‐13X and PANI‐13X composites showed direct current conductivity in the order of 10 −4 S/cm in either system. However, the conductivity of PNVC‐ 13X composite could be improved to 10 −5 and 10 −6 S/cm by loading PPY and PANI, respectively. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 913–921, 2006