
204 Engineering of Polymers and Chemical Complexity
9.8.3 RESULTS AND DISCUSSIONS
SURFACE MORPHOLOGY
The content of CNTs in PANi fiber is given as a weight fraction with respect to the
weight of Pani-AMPSA in the solid fiber, and it is 0.25 %w/w in this work. The cross-
section images of PANi or PANi/CNT fibers at low or high magnification are shown
in Figure 1. Some differences can be clearly observed between these two types of solid
fiber. In Figure 1a pure PANi fiber shows an even and featureless cross-section sur-
face, consistent with a fully dense structure. The PANi fiber containing CNTs showed
fracture marks on its cross-section, but there ...