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A nanocomposite of poly( N ‐vinylcarbazole) with nanodimensional alumina
Author(s) -
Maity Arjun,
Biswas Mukul
Publication year - 2003
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.11943
Subject(s) - thermogravimetric analysis , nanocomposite , materials science , transmission electron microscopy , tetrahydrofuran , scanning electron microscope , polymer chemistry , composite number , fourier transform infrared spectroscopy , chemical engineering , polymer , thermal stability , solvent , composite material , organic chemistry , chemistry , nanotechnology , engineering
A nanocomposite of poly( N ‐vinylcarbazole) (PNVC) and Al 2 O 3 was prepared by precipitation of a preformed PNVC in a tetrahydrofuran solution onto an aqueous suspension of nanodimensional Al 2 O 3 . Prolonged extraction of a PNVC–Al 2 O 3 composite by benzene failed to extract the loaded PNVC from the Al 2 O 3 , as shown by Fourier transform infrared studies. Scanning electron microscopy analyses revealed distinct morphological features of the composite, and transmission electron microscopy analyses confirmed that the particle sizes were in the range of 120–240 nm. Thermogravimetric analyses demonstrated the enhanced stability of the nanocomposite relative to the base polymer. Direct current conductivity of the PNVC–Al 2 O 3 composites was found to be about 0.14 × 10 −6 S/cm. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 88: 2233–2237, 2003