Abstract
Electrically conducting copolymer poly(aniline-co-p-phenylenediamine) and carboxylic acid functionalized multiwalled carbon nanotube (c-MWCNT) nancomposites were prepared via in situ emulsion polymerization using sodium dodecyl sulfate as an emulsifier and potassium persulfate as an oxidant. STEM and FESEM analyses showed that a tubular layer of coated copolymer film of several nanometer thicknesses was present on the c-MWCNT's surface. FT-IR spectra were endorsed the formation of nanocomposites. UV-visible absorption spectra of the diluted colloidal dispersion of nanocomposites were similar to those of the bare copolymer. Thermal stability of nanocomposites was improved by the addition of c-MWCNTs. XRD patterns of the nanocomposite samples had more crystalline nature than the bare copolymer. As the content of c-MWCNTs was increased, the electrical conductivity was increased by a charge transport function from the intrinsic electrical conductivity of MWCNTs and the formation of a highly ordered dense structure of copolymer molecules on the surface of c-MWCNTs.
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This research is supported by grant number RT104-01-04 from the Regional Technology Innovation Program of the Ministry of Knowledge and Economy (MOKE).
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Haldorai, Y., Lyoo, W.S. & Shim, JJ. Poly(aniline-co-p-phenylenediamine)/MWCNT nanocomposites via in situ microemulsion: synthesis and characterization. Colloid Polym Sci 287, 1273–1280 (2009). https://doi.org/10.1007/s00396-009-2088-y
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DOI: https://doi.org/10.1007/s00396-009-2088-y