Research Article

Preparation, Characterization, and Properties of Polyurethane-Grafted Multiwalled Carbon Nanotubes and Derived Polyurethane Nanocomposites

Table 1

(1) XPS peak position (in eV) and (2) percentage (in atom-%) from high-resolution C(1s) spectra of crude MWNTs and acid-treated MWNTs.

SampleC–C/C=CC–OC(=O)–OH

MWNT(1)284.6 eV285.4 eV288.6 eV
(2)76.65%16.55%6.80%

NT-COOH-8(1)284.6 eV285.3 eV289.1 eV
(2)42.57%33.44%23.99%

NT-COOH-24(1)284.6 eV285.3 eV288.7 eV
(2)39.74%34.05%26.21%