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Nanocomposites of poly(ethylene oxide) and multiwall carbon nanotube prepared using an organic salt‐assisted dispersion technique
Author(s) -
Ratna Debdatta,
Jagtap Siddheshwar B.,
Abraham Thomas
Publication year - 2013
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.23300
Subject(s) - materials science , carbon nanotube , nanocomposite , sebacic acid , dispersion (optics) , fourier transform infrared spectroscopy , composite material , dynamic mechanical analysis , ethylene oxide , raman spectroscopy , scanning electron microscope , chemical engineering , spherulite (polymer physics) , polymer , polymer chemistry , copolymer , physics , optics , engineering
Poly (ethylene oxide) (PEO)/multiwall carbon nanotubes (MWCNT) nanocomposites were prepared by dispersion of MWCNTs in aqueous solution using half neutralized sodium salt of sebacic acid as a modifier. The physical interaction of half neutralized sodium salt of sebacic acid with MWCNT (cation‐π interaction) has been established by using Fourier transform infrared and Raman spectroscopic analyses. Such interaction helps in debundling the MWCNTs and resulted in a better dispersion in PEO matrix as confirmed by scanning electron microscopy and transmission electron microscopy. Addition of MWCNT significantly improves the storage modulus in rheological measurements as well as in dynamic mechanical thermal analysis. The crystallization behaviors of the composites made with the unmodified and modified MWCNTs were investigated. The modified MWCNT‐based composites shows large number of spherulite with smaller size compared to those observed in unmodified MWCNT‐based composite. POLYM. ENG. SCI. 2013. © 2012 Society of Plastics Engineers