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A conducting nanocomposite of acetylene black with preformed poly‐ N ‐vinylcarbazole crosslinked by anhydrous FeCl 3
Author(s) -
Maity Arjun,
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.23176
Subject(s) - materials science , nanocomposite , thermal stability , polymer chemistry , composite number , acetylene , fourier transform infrared spectroscopy , anhydrous , carbon black , chemical engineering , composite material , chemistry , organic chemistry , natural rubber , engineering
A conducting nanocomposite of crosslinked poly‐ N ‐vinylcarbazole (CLPNVC) with nanodimensional acetylene black (AB) was prepared by oxidative crosslinking of preformed PNVC through pendant carbazole moieties in presence of anhydrous FeCl 3 as an oxidant and AB suspension in CHCl 3 medium at 65°C. The incorporation of CLPNVC moieties in the CLPNVC‐AB composite was endorsed by Fourier transform infrared analysis. Scanning electron microscopic analysis showed formation of lumpy aggregates with average sizes in the 130–330 nm ranges. The thermal stability of the CLPNVC‐AB composite was appreciably higher than that of the PNVC‐AB composite. The direct current conductivities of the composites were significantly enhanced relative to that of the PNVC homopolymer (10 −12 –10 −16 S/cm) and varied in the range of 10 −4 –10 −2 S/cm depending on the amount of AB loading in the CLPNVC‐AB composite. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 100: 819–824, 2006