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Interaction of multi‐walled carbon nanotube with poly(m‐aminophenol) in their processable conducting nanocomposite
Author(s) -
Verma Sushil Kumar,
Choudhury Arup,
Kar Pradip
Publication year - 2015
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201431910
Subject(s) - nanocomposite , thermogravimetric analysis , materials science , carbon nanotube , fourier transform infrared spectroscopy , thermal stability , scanning electron microscope , chemical engineering , conductivity , aqueous solution , composite material , organic chemistry , chemistry , engineering
Poly(m‐aminophenol)‐multi‐walled carbon nanotube (PmAP‐MWCNT) composites are successfully synthesized by in situ chemical oxidative polymerization of m‐aminophenol (mAP) with varying amount of MWCNT dispersion in aqueous sodium hydroxide medium. All the synthesized PmAP‐MWCNT nanocomposites are found to be soluble in organic solvent and well free standing film is cast from the solution. Different techniques like Fourier transform infrared spectroscopy, ultraviolet visible spectroscopy, X‐ray diffraction, scanning electron microscopy, and transmission electron microscopy are used to study the interaction between PmAP and MWCNT within their nanocomposite. Thermal stability of the synthesized nanocomposites is analyzed by thermogravimetric analysis. Without any other type of further doping, the highest average DC‐conductivity of 1.3 × 10 −7 S cm −1 is recorded for the PmAP‐MWCNT nanocomposite having 3 wt% MWCNT. The optimum induced doping interaction of MWCNT with PmAP in terms of conductivity is explained on the basis of the above characterizations. The further increase in conductivity for the nanocomposites is observed by optimum sulfuric acid doping and highest conductivity is achieved as 1.03 × 10 −3 S cm −1 for PmAP‐MWCNT having 3 wt% MWCNT.