Covalent Addition of Diethyltoluenediamines Onto Carbon Nanotubes for Composite Application Academic Article uri icon


  • Diethyltoluenediamines (DETDA) was grafted to singlewalled carbon nanotubes (SWNTs) through diazoniumbased addition for improving dispersion and interfacial bonding in SWNT/epoxy nanocomposites. Characterization results of Fourier Transformed Infrared spectroscopy and Raman spectroscopy validated covalent bonding between DETDA and carbon nanotubes. The degree of functionalization was about 4% based on thermo-gravimetric analysis. Interfacial bonding strength was computed in the presence of chemical bonding and the computation results indicated that the interfacial shear strength in the presence of functionalized carbon nanotubes was significantly enhanced. The experimental test revealed that the tensile strength of nanocomposites was enhanced about 23% and Young's modulus about 25%, with 0.5 wt% loading of functionalized-nanotubes. These considerable improvements further verified the load-transfer enhancement in the functionalized-SWNTs/epoxy nanocomposites. POLYM. COMPOS., 30:1050-1057, 2009. 2008 Society of Plastics Engineers.

published proceedings


author list (cited authors)

  • Wang, S., Liang, R., Wang, B., & Zhang, C.

citation count

  • 26

complete list of authors

  • Wang, Shiren||Liang, Richard||Wang, Ben||Zhang, Chuck

publication date

  • August 2009