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

Figure 4

SEM micrographs of PUT-functionalized and chemically defunctionalized MWNT samples. (a) NT-PUT-8. (b) NT-PUT-8 defunctionalized at 900°C for 2 h. (c) NT-PUT-24. (d) NT-PUT-24 defunctionalized at 900°C for 2 h.

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