Premium
Polyaniline‐multiwalled carbon nanotube composites: Characterization by WAXS and TGA
Author(s) -
Jeevananda T.,
Lee Taek Su,
Lee Joong Hee,
Samir O. M.,
Somashekar R.
Publication year - 2008
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.27847
Subject(s) - materials science , polyaniline , nanocomposite , thermogravimetric analysis , thermal stability , carbon nanotube , composite material , crystallite , nanotube , emulsion polymerization , microcrystalline , electrical resistivity and conductivity , conductive polymer , chemical engineering , polymerization , polymer , crystallography , chemistry , engineering , metallurgy , electrical engineering
Polyaniline/carboxylated multi‐walled carbon nanotube (PAni/c‐MWNT) nanocomposites have been synthesized by micellar aided emulsion polymerization with various c‐MWNTs compositions, viz., 0.5, 1, 5, and 10 wt %. The microcrystalline parameters such as the nanocrystal size (〈 N 〉), lattice strain ( g ), interplanar distance ( d hkl ), width of the crystallite size distribution, surface weighted crystal size ( D s ), and volume of the ordered regions were calculated from the X‐ray data by using two mathematical models, namely the Exponential distribution and Reinhold distribution methods. The effects of heat ageing on the microcrystalline parameters of the PAni/c‐MWNT nanocomposites were also studied and the results are correlated. The thermal stability and electrical resistivity of the PAni/c‐MWNT nanocomposites were examined with thermogravimetric analysis (TGA) and a conventional two‐probe method. The TGA data indicate that the thermal stability of the nanocomposites improved after the incorporation of c‐MWNTs. The influence of temperature on the resistivity of the nanocomposites was also measured. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci 2008